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St. Mary River Formation

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The St. Mary River Formation has produced relatively few dinosaur fossils from its outcrops in southwestern Alberta. However, footprints and trackways have been found along the St. Mary and Oldman Rivers. More than 100 track-bearing stratigraphic units were documented in one section 177 metres
1991:
Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press, pp. 574-588.
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The St. Mary River Formation is generally considered to consist of two units. The lower 30–60 meters (98–197 ft) of the formation was deposited in brackish water environments, and is characterized by fine-grained
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beds. The remainder of the formation was deposited in freshwater fluvial and floodplain environments and is characterized by interbedded sandstone and siltstone, with minor occurrences of carbonaceous shale and coal.
2584: 1314:(580 ft) thick, which is one of the highest densities of track-bearing layers reported from any succession. One footprint from the formation includes the first record of skin impressions from the bottom of a 537:
The St. Mary River Formation is part of an eastward-thinning wedge of sediments derived from the erosion of the mountains to the west. It is about 762 metres (2,500 ft) thick in the exposures along the
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Brown, Caleb M.; Henderson, Donald M. (June 4, 2015). "A new horned dinosaur reveals convergent evolution in cranial ornamentation in ceratopsidae". Current Biology (online). doi:10.1016/j.cub.2015.04.041.
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Ryan, M. J., and Russell, A. P., 2001. Dinosaurs of Alberta (exclusive of Aves): In: Mesozoic Vertebrate Life, edited by Tanke, D. H., and Carpenter, K., Indiana University Press, Introduction, page 281.
2579: 2180:"Enriching our knowledge of Late Cretaceous wetland plant communities: Zlatkovia crenulata gen. et sp. nov., an amphibious angiosperm from the St. Mary River Formation, Alberta, Canada" 2589: 1841:"Revised geochronology, correlation, and dinosaur stratigraphic ranges of the Santonian-Maastrichtian (Late Cretaceous) formations of the Western Interior of North America" 2554: 411: 2594: 1951: 1825:
Dawson, G.M., 1883. Preliminary report on the geology of the Bow and Belly river region, Northwest Territory, with special reference to the coal deposits.
1911:"The Geological Atlas of the Western Canada Sedimentary Basin, Chapter 24: Upper Cretaceous and Tertiary strata of the Western Canada Sedimentary Basin" 2869: 719: 838:
shells are common in the basal, brackish water portion of the formation. The overlying freshwater beds include shells of freshwater and terrestrial
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Prior, G. J., Hathaway, B., Glombick, P.M., Pana, D.I., Banks, C.J., Hay, D.C., Schneider, C.L., Grobe, M., Elgr, R., and Weiss, J.A. (2013).
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Eighteen species of plant leaves were described from the St. Mary River Formation in 1949. More recent work downstream from the
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Bell, W.A. 1949. Uppermost Cretaceous and Paleocene floras of western Canada. Geological Survey of Canada, Bulletin 13, 231 p.
2014: 383: 701: 477: 352: 211: 2015:"Edmonton Group/St Mary River Formation: Summary of Literature and Concepts. Geological Survey of Canada, Open File 3578" 250: 2364:"Dinosaur footprints with skin impressions from the Cretaceous of Alberta and Colorado. Can. J. Earth Sci. 28: 102-115" 1802: 461: 1997: 2563: 1908: 2651: 2641: 2093: 2884: 2094:"The Role of Hydropteris pinnata gen. et. sp. nov. In Reconstructing the cladistics of Heterosporous Ferns" 204: 2849: 2844: 2526:
sp." in "1.4 Alberta, Canada; 13. St. Mary River Formation," in Weishampel, et al. (2004). Pages 577-578.
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sp." in "1.4 Alberta, Canada; 13. St. Mary River Formation," in Weishampel, et al. (2004). Pages 577-578.
2485:"3.11 Montana, United States; 11. St. Mary River Formation," in Weishampel, et al. (2004). Pages 583-584. 1826: 2130:"Late Cretaceous Aquatic Vegetation: Tolmania aquatica gen. et sp. nov., from Southern Alberta, Canada" 571: 2471:" in "1.4 Alberta, Canada; 13. St. Mary River Formation," in Weishampel, et al. (2004). Pages 577-578. 2451:" in "1.4 Alberta, Canada; 13. St. Mary River Formation," in Weishampel, et al. (2004). Pages 577-578. 2879: 2686: 1914: 1806: 2395: 2889: 2854: 2646: 2681: 2438:"1.4 Alberta, Canada; 13. St. Mary River Formation," in Weishampel, et al. (2004). Pages 577-578. 563: 2803: 1957: 559: 141: 2808: 2382: 1909:
Mossop, G.D. and Shetsen, I., (compilers), Canadian Society of Petroleum Geologists (1994).
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The mammals of the St. Mary River Formation were described by Sloan and Russell in 1974.
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in Alberta, where it grades into and intertongues with the contemporaneous strata of the
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The St. Mary River Formation conformably overlies the Blood Reserve Sandstone, or the
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from the Upper Cretaceous (Maastrictian) St. Mary River Formation of southern Alberta
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where the Blood Reserve Sandstone is absent, and it is conformably overlain by the
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gen. et sp. nov (Limnocharitaceae) from the Upper Cretaceous of Alberta, Canada
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increased the total to at least 32 species. The assemblage includes remains of
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Mammals of the St. Mary River Formation (Cretaceous) of southwestern Alberta
2758: 2656: 2361: 1892: 1074: 1056: 947: 543: 496: 943:"NMC 17662, 17663, 17664, 3 tooth fragments from at least 2 individuals." 113: 2736: 2636: 2298:
Hunter, John P.; Heinrich, Ronald E.; Weishampel, David B. (2010-05-18).
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Edmonds, Nathaniel L.; Stockey, Ruth A.; Rothwell, Gar W. (2022-08-04).
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and Castle Rivers, and about 457 metres (1,500 ft) thick along the
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Fossils from the formation include remains of dinosaurs, as well as
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Currie, P.J., Nadon, G.C. and Lockley, M.G. (1991).
2178:Rothwell, Gar W.; Stockey, Ruth A. (2022-08-08). 2831: 2434: 2432: 1213:NMC 21307, buccal portion of right upper molar. 1131:is tentative until the complete tooth is known. 418: 390: 2481: 2479: 2477: 2430: 2428: 2426: 2424: 2422: 2420: 2418: 2416: 2414: 2412: 2177: 2091: 484:in 1883, and it takes its name from the river. 2012: 549: 118:Strata of the St. Mary River Formation at the 2548: 746:"Sixteen compression/ impression specimens". 700:"Riverbank exposure on the north side of the 611:-like plant, and at least six types of large 532: 2502: 2500: 2474: 2459: 2457: 2409: 1977:: CS1 maint: multiple names: authors list ( 1934:: CS1 maint: multiple names: authors list ( 1829:, Report of Progress for 1880-81-82, Part B. 1705: 1124:"NMC 9821, trigonid of a left lower molar". 2518: 2516: 2555: 2541: 2441: 1904: 1902: 112: 2870:Sandstone formations of the United States 2497: 2454: 2401:CS1 maint: multiple names: authors list ( 2203: 2071:Stockey, R.A. and Rothwell, G.W. (1997). 2008: 2006: 1882: 1864: 2513: 2092:Rothwell, G. W.; Stockey, R. A. (1994). 1947: 1945: 1783:List of dinosaur-bearing rock formations 1561: 1411: 1399: 1391:Remains later found to be referrable to 1328: 1018:"ROM 7849, a worn, broken right molar". 863: 624: 2134:International Journal of Plant Sciences 2046: 2044: 2042: 1899: 704:approx. 50 m below the spillway of the 2832: 2355: 2267: 2265: 2263: 2261: 2259: 2257: 2255: 2253: 2251: 2003: 1838: 1795: 850:are common in the fluvial sandstones. 2536: 2293: 2291: 2289: 2287: 2285: 2283: 2281: 2249: 2247: 2245: 2243: 2241: 2239: 2237: 2235: 2233: 2231: 2173: 2171: 2123: 2121: 2087: 2085: 2067: 2065: 2063: 2050:Riley, M.G. and Stockey, R.A.(2004). 1942: 1839:Fowler, Denver Warwick (2017-11-22). 2860:Maastrichtian Stage of North America 2585:Frontier exploration and development 2346: 2271:Sloan, R.E. and Russell, L.S. 1974. 2039: 16:Geologic formation in western Canada 1762:Uncertain or tentative taxa are in 1395:, but it's not known what species. 1261:comparable in size to the smallest 13: 2895:Western Canadian Sedimentary Basin 2304:Journal of Vertebrate Paleontology 2278: 2228: 2168: 2118: 2082: 2060: 1803:Lexicon of Canadian Geologic Units 1308: 990: 953: 426:St. Mary River Formation (Alberta) 14: 2906: 1722:Taxon falsely reported as present 1321: 715:Large segments of intact plants. 577: 398:St. Mary River Formation (Canada) 2564:Western Canada Sedimentary Basin 1118:Genus and species undetermined. 462:Western Canada Sedimentary Basin 417: 410: 389: 382: 330: 317: 299: 286: 161:up to 762 metres (2,500 ft) 38: 2488: 1727:Dubious taxon or junior synonym 1558: 1325: 907:Locality 11, 15 miles north of 860: 621: 2865:Sandstone formations of Canada 2840:Geologic formations of Alberta 2030: 1832: 1819: 472:. It was first described from 1: 2875:Ichnofossiliferous formations 2205:10.1016/j.cretres.2022.105328 1788: 1866:10.1371/journal.pone.0188426 1554: 1303: 502: 244:Approximate paleocoordinates 7: 2620:Northwestern Alberta Plains 1827:Geological Survey of Canada 1776: 1689: 821: 550:Relationship to other units 10: 2911: 1807:"St. Mary River Formation" 1619: 1398: 981:"ROM 7848, the badly worn 853: 572:Horseshoe Canyon Formation 533:Thickness and distribution 2671: 2603: 2570: 2324:10.1080/02724631003763490 1696: 1692: 1248:Genus and species indet. 1193: 376: 368: 358: 348: 343: 312: 281: 242: 203: 198: 184: 170: 165: 157: 147: 137: 127: 111: 26: 21: 2647:Northern Rocky Mountains 1694: 615:leaves in addition to a 582: 442:St. Mary River Formation 22:St. Mary River Formation 2633:North-central foothills 2580:Oil sands and heavy oil 2073:The aquatic angiosperm 2013:Hamblin, A. P. (1998). 1580:Stratigraphic position 1347:Stratigraphic position 1231:Scabby Butte, Alberta. 1210:Scabby Butte, Alberta. 1121:Scabby Butte, Alberta. 1100:Scabby Butte, Alberta. 1067:Scabby Butte, Alberta. 1015:Scabby Butte, Alberta. 978:Scabby Butte, Alberta. 940:Scabby Butte, Alberta. 914:NMC 17667, a right M2. 566:to as far north as the 564:Glacier County, Montana 2390:Cite journal requires 1770:taxa are discredited. 1421: 1409: 995: 958: 560:Willow Creek Formation 142:Willow Creek Formation 1415: 1403: 994: 957: 468:and northwesternmost 2604:Depositional regions 1234:NMC 9820, right M1. 482:George Mercer Dawson 363:George Mercer Dawson 132:Geological formation 2885:Mudstone formations 2809:Beaverhill Lake GRP 2590:Natural gas liquids 2572:Hydrocarbon history 2316:2010JVPal..30..885H 2196:2022CrRes.14005328R 2184:Cretaceous Research 2053:Cardstonia tolmanii 1857:2017PLoSO..1288426F 985:of a right molar." 520:beds, carbonaceous 429:Show map of Alberta 262: /  223: /  28:Stratigraphic range 2850:Cretaceous Alberta 2845:Cretaceous Montana 2687:Porcupine Hills FM 1717:Reclassified taxon 1422: 1410: 996: 959: 775:Southern Alberta. 706:St. Mary Reservoir 589:St. Mary Reservoir 562:. It extends from 401:Show map of Canada 120:St. Mary Reservoir 2827: 2826: 2630:North-east Plains 2508:Saurornitholestes 2106:10.7939/R3QZ22T7R 1774: 1773: 1765: 1753: 1752: 1749: 1742: 1735: 1728: 1723: 1718: 1713: 1688: 1687: 1636:Saurornitholestes 1627:Saurornitholestes 1552: 1551: 1441: 1375: 1301: 1300: 819: 818: 670:Cardston, Alberta 556:Bearpaw Formation 438: 437: 152:Bearpaw Formation 2902: 2880:Shale formations 2682:Cypress Hills FM 2673:Southern Alberta 2625:Canadian Rockies 2611:Southern Alberta 2557: 2550: 2543: 2534: 2533: 2527: 2520: 2511: 2504: 2495: 2492: 2486: 2483: 2472: 2461: 2452: 2445: 2439: 2436: 2407: 2406: 2399: 2393: 2388: 2386: 2378: 2368: 2359: 2353: 2350: 2344: 2343: 2295: 2276: 2269: 2226: 2225: 2207: 2175: 2166: 2165: 2125: 2116: 2115: 2113: 2112: 2089: 2080: 2075:Trapago angulata 2069: 2058: 2048: 2037: 2034: 2028: 2027: 2025: 2024: 2019: 2010: 2001: 1989: 1983: 1982: 1976: 1968: 1966: 1965: 1956:. Archived from 1949: 1940: 1939: 1933: 1925: 1923: 1922: 1913:. Archived from 1906: 1897: 1896: 1886: 1868: 1851:(11): e0188426. 1836: 1830: 1823: 1817: 1816: 1814: 1813: 1799: 1763: 1745: 1738: 1731: 1726: 1721: 1716: 1709: 1706: 1690: 1559: 1494:Pachyrhinosaurus 1437: 1418:Pachyrhinosaurus 1371: 1326: 1185:multituberculate 861: 679:Limnocharitaceae 622: 568:Little Bow River 464:in southwestern 430: 421: 420: 414: 402: 393: 392: 386: 336: 334: 333: 323: 321: 320: 305: 303: 302: 292: 290: 289: 277: 276: 274: 273: 272: 267: 263: 260: 259: 258: 255: 238: 237: 235: 234: 233: 228: 224: 221: 220: 219: 216: 116: 107: 37: 19: 18: 2910: 2909: 2905: 2904: 2903: 2901: 2900: 2899: 2890:Coal formations 2855:Campanian Stage 2830: 2829: 2828: 2823: 2819:Canadian Shield 2804:Cooking Lake FM 2702:Belly River GRP 2667: 2616:Central Alberta 2599: 2566: 2561: 2531: 2530: 2521: 2514: 2506:Listed as "cf. 2505: 2498: 2493: 2489: 2484: 2475: 2462: 2455: 2446: 2442: 2437: 2410: 2400: 2391: 2389: 2380: 2379: 2375:10.1139/e91-009 2366: 2360: 2356: 2351: 2347: 2296: 2279: 2270: 2229: 2176: 2169: 2126: 2119: 2110: 2108: 2090: 2083: 2070: 2061: 2049: 2040: 2035: 2031: 2022: 2020: 2017: 2011: 2004: 1990: 1986: 1970: 1969: 1963: 1961: 1950: 1943: 1927: 1926: 1920: 1918: 1907: 1900: 1837: 1833: 1824: 1820: 1811: 1809: 1800: 1796: 1791: 1779: 1761: 1704: 1557: 1471:M. cerorhynchus 1463:Montanoceratops 1406:Montanoceratops 1324: 1311: 1309:Dinosaur tracks 1306: 856: 824: 585: 580: 552: 535: 505: 450:Late Cretaceous 434: 433: 432: 431: 428: 427: 424: 423: 422: 405: 404: 403: 400: 399: 396: 395: 394: 331: 329: 328: 318: 316: 300: 298: 297: 287: 285: 270: 268: 264: 261: 256: 253: 251: 249: 248: 231: 229: 225: 222: 217: 214: 212: 210: 209: 123: 106: 105: 104: 103: 98: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 43: 32: 31: 17: 12: 11: 5: 2908: 2898: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2825: 2824: 2822: 2821: 2816: 2811: 2806: 2801: 2796: 2791: 2786: 2781: 2776: 2771: 2766: 2761: 2756: 2755: 2754: 2749: 2744: 2734: 2729: 2724: 2719: 2714: 2709: 2704: 2699: 2694: 2689: 2684: 2678: 2676: 2669: 2668: 2666: 2665: 2659: 2654: 2649: 2644: 2639: 2634: 2631: 2628: 2623:South-central 2621: 2618: 2613: 2607: 2605: 2601: 2600: 2598: 2597: 2592: 2587: 2582: 2576: 2574: 2568: 2567: 2560: 2559: 2552: 2545: 2537: 2529: 2528: 2512: 2496: 2487: 2473: 2453: 2440: 2408: 2392:|journal= 2354: 2345: 2310:(3): 885–898. 2277: 2227: 2167: 2146:10.1086/721261 2140:(7): 567–575. 2117: 2081: 2059: 2038: 2029: 2002: 1984: 1941: 1898: 1831: 1818: 1793: 1792: 1790: 1787: 1786: 1785: 1778: 1775: 1772: 1771: 1756: 1754: 1751: 1750: 1743: 1736: 1729: 1724: 1719: 1714: 1698: 1697: 1695: 1693: 1686: 1685: 1683: 1681: 1679: 1678: 1677: 1672: 1664: 1654: 1653: 1651: 1649: 1647: 1646: 1645: 1640: 1631: 1621: 1620: 1618: 1616: 1614: 1612: 1611: 1610: 1605: 1601: 1591: 1590: 1587: 1584: 1581: 1578: 1575: 1572: 1568: 1567: 1556: 1553: 1550: 1549: 1547: 1545: 1543: 1542: 1541: 1536: 1529: 1525:Regaliceratops 1519: 1518: 1516: 1514: 1512: 1511: 1510: 1505: 1498: 1488: 1487: 1485: 1483: 1481: 1480: 1479: 1474: 1467: 1457: 1456: 1454: 1452: 1450: 1449: 1448: 1443: 1434: 1424: 1423: 1397: 1388: 1386: 1384: 1383: 1382: 1377: 1368: 1358: 1357: 1354: 1351: 1348: 1345: 1342: 1339: 1335: 1334: 1331:Ornithischians 1323: 1322:Ornithischians 1320: 1310: 1307: 1305: 1302: 1299: 1298: 1296: 1289: 1287: 1284: 1279: 1271: 1270: 1268: 1255: 1252: 1249: 1246: 1244:Ptilodontoidea 1240: 1239: 1237: 1235: 1232: 1229: 1219: 1218: 1216: 1214: 1211: 1208: 1199: 1191: 1190: 1188: 1181: 1179: 1176: 1171: 1163: 1162: 1160: 1153: 1151: 1148: 1143: 1135: 1134: 1132: 1127:Assignment to 1125: 1122: 1119: 1116: 1109: 1108: 1106: 1104: 1101: 1098: 1089: 1081: 1080: 1078: 1071: 1068: 1065: 1060: 1052: 1051: 1049: 1042: 1040: 1037: 1032: 1024: 1023: 1021: 1019: 1016: 1013: 1007: 998: 997: 988: 986: 979: 976: 970: 961: 960: 951: 944: 941: 938: 933: 925: 924: 922: 915: 912: 905: 900: 892: 891: 888: 885: 880: 877: 874: 870: 869: 855: 852: 823: 820: 817: 816: 814: 809:An amphibious 807: 804: 797: 792: 784: 783: 781: 779: 776: 773: 768: 760: 759: 757: 747: 744: 737: 732: 724: 723: 720:hydropteridale 716: 713: 702:St. Mary River 698: 693: 685: 684: 682: 675: 673: 666: 661: 653: 652: 649: 646: 641: 638: 635: 631: 630: 584: 581: 579: 578:Fossil content 576: 551: 548: 534: 531: 504: 501: 489:bivalve shells 478:St. Mary River 444:is a geologic 436: 435: 425: 416: 415: 409: 408: 407: 406: 397: 388: 387: 381: 380: 379: 378: 377: 374: 373: 370: 366: 365: 360: 356: 355: 353:St. Mary River 350: 346: 345: 341: 340: 314: 310: 309: 283: 279: 278: 246: 240: 239: 227:49.6°N 114.1°W 207: 201: 200: 196: 195: 186: 182: 181: 172: 168: 167: 163: 162: 159: 155: 154: 149: 145: 144: 139: 135: 134: 129: 125: 124: 117: 109: 108: 101: 100: 99: 94: 89: 84: 79: 74: 69: 64: 59: 54: 49: 44: 39: 24: 23: 15: 9: 6: 4: 3: 2: 2907: 2896: 2893: 2891: 2888: 2886: 2883: 2881: 2878: 2876: 2873: 2871: 2868: 2866: 2863: 2861: 2858: 2856: 2853: 2851: 2848: 2846: 2843: 2841: 2838: 2837: 2835: 2820: 2817: 2815: 2814:Elk Point GRP 2812: 2810: 2807: 2805: 2802: 2800: 2797: 2795: 2792: 2790: 2787: 2785: 2782: 2780: 2777: 2775: 2772: 2770: 2767: 2765: 2762: 2760: 2757: 2753: 2750: 2748: 2745: 2743: 2740: 2739: 2738: 2735: 2733: 2732:Mannville GRP 2730: 2728: 2725: 2723: 2722:Milk River FM 2720: 2718: 2715: 2713: 2710: 2708: 2705: 2703: 2700: 2698: 2695: 2693: 2692:Ravenscrag FM 2690: 2688: 2685: 2683: 2680: 2679: 2677: 2674: 2670: 2664: 2660: 2658: 2655: 2653: 2652:Fort St. John 2650: 2648: 2645: 2643: 2640: 2638: 2635: 2632: 2629: 2626: 2622: 2619: 2617: 2614: 2612: 2609: 2608: 2606: 2602: 2596: 2593: 2591: 2588: 2586: 2583: 2581: 2578: 2577: 2575: 2573: 2569: 2565: 2558: 2553: 2551: 2546: 2544: 2539: 2538: 2535: 2525: 2522:Listed as "? 2519: 2517: 2509: 2503: 2501: 2491: 2482: 2480: 2478: 2470: 2466: 2460: 2458: 2450: 2447:Listed as "? 2444: 2435: 2433: 2431: 2429: 2427: 2425: 2423: 2421: 2419: 2417: 2415: 2413: 2404: 2397: 2384: 2376: 2372: 2365: 2358: 2349: 2341: 2337: 2333: 2329: 2325: 2321: 2317: 2313: 2309: 2305: 2301: 2294: 2292: 2290: 2288: 2286: 2284: 2282: 2274: 2268: 2266: 2264: 2262: 2260: 2258: 2256: 2254: 2252: 2250: 2248: 2246: 2244: 2242: 2240: 2238: 2236: 2234: 2232: 2223: 2219: 2215: 2211: 2206: 2201: 2197: 2193: 2189: 2185: 2181: 2174: 2172: 2163: 2159: 2155: 2151: 2147: 2143: 2139: 2135: 2131: 2124: 2122: 2107: 2103: 2099: 2095: 2088: 2086: 2078: 2076: 2068: 2066: 2064: 2056: 2054: 2047: 2045: 2043: 2033: 2016: 2009: 2007: 1999: 1998:0-520-24209-2 1995: 1988: 1980: 1974: 1960:on 2013-07-05 1959: 1955: 1948: 1946: 1937: 1931: 1917:on 2013-07-21 1916: 1912: 1905: 1903: 1894: 1890: 1885: 1880: 1876: 1872: 1867: 1862: 1858: 1854: 1850: 1846: 1842: 1835: 1828: 1822: 1808: 1804: 1798: 1794: 1784: 1781: 1780: 1769: 1760: 1757: 1755: 1748: 1744: 1741: 1737: 1734: 1730: 1725: 1720: 1715: 1712: 1708: 1707: 1703: 1700: 1699: 1691: 1684: 1682: 1680: 1675: 1674: 1673: 1671: 1669: 1665: 1663: 1662: 1661: 1656: 1655: 1652: 1650: 1648: 1643: 1642: 1641: 1639: 1637: 1632: 1630: 1629: 1628: 1623: 1622: 1617: 1615: 1613: 1608: 1607: 1606: 1604: 1602: 1600: 1599: 1598: 1597:Albertosaurus 1593: 1592: 1588: 1585: 1582: 1579: 1576: 1573: 1570: 1569: 1566: 1565: 1560: 1548: 1546: 1544: 1539: 1538: 1537: 1535: 1534: 1533:R. peterhewsi 1530: 1528: 1527: 1526: 1521: 1520: 1517: 1515: 1513: 1508: 1507: 1506: 1504: 1503: 1502:P. canadensis 1499: 1497: 1496: 1495: 1490: 1489: 1486: 1484: 1482: 1477: 1476: 1475: 1473: 1472: 1468: 1466: 1465: 1464: 1459: 1458: 1455: 1453: 1451: 1446: 1445: 1444: 1442: 1440: 1435: 1433: 1432: 1431: 1426: 1425: 1420: 1419: 1414: 1408: 1407: 1402: 1396: 1394: 1393:Anchiceratops 1389: 1387: 1385: 1380: 1379: 1378: 1376: 1374: 1369: 1367: 1366: 1365: 1364:Anchiceratops 1360: 1359: 1355: 1352: 1349: 1346: 1343: 1340: 1337: 1336: 1333: 1332: 1327: 1319: 1317: 1297: 1294: 1290: 1288: 1285: 1283: 1280: 1278: 1277: 1273: 1272: 1269: 1266: 1265: 1260: 1256: 1253: 1250: 1247: 1245: 1242: 1241: 1238: 1236: 1233: 1230: 1228: 1224: 1221: 1220: 1217: 1215: 1212: 1209: 1207: 1203: 1200: 1198: 1197: 1192: 1189: 1186: 1182: 1180: 1177: 1175: 1174:P. propriscus 1172: 1170: 1169: 1168:Paracimexomys 1165: 1164: 1161: 1158: 1154: 1152: 1149: 1147: 1144: 1142: 1141: 1137: 1136: 1133: 1130: 1126: 1123: 1120: 1117: 1114: 1111: 1110: 1107: 1105: 1102: 1099: 1097: 1093: 1090: 1088: 1087: 1083: 1082: 1079: 1076: 1072: 1069: 1066: 1064: 1061: 1059: 1058: 1054: 1053: 1050: 1047: 1043: 1041: 1038: 1036: 1033: 1031: 1030: 1026: 1025: 1022: 1020: 1017: 1014: 1011: 1008: 1006: 1004: 1000: 999: 993: 989: 987: 984: 980: 977: 974: 971: 969: 967: 963: 962: 956: 952: 949: 945: 942: 939: 937: 934: 932: 931: 927: 926: 923: 920: 916: 913: 910: 906: 904: 901: 899: 898: 894: 893: 889: 886: 884: 881: 878: 875: 872: 871: 868: 867: 862: 859: 851: 849: 845: 841: 837: 836: 831: 830: 815: 812: 808: 805: 802: 798: 796: 793: 791: 790: 786: 785: 782: 780: 777: 774: 772: 769: 767: 766: 762: 761: 758: 755: 752: 748: 745: 742: 738: 736: 733: 731: 730: 726: 725: 721: 717: 714: 711: 707: 703: 699: 697: 694: 692: 691: 687: 686: 683: 680: 676: 674: 671: 667: 665: 662: 660: 659: 655: 654: 650: 647: 645: 642: 639: 636: 633: 632: 629: 628: 623: 620: 618: 614: 610: 609: 604: 600: 599: 594: 590: 575: 573: 569: 565: 561: 557: 547: 545: 541: 530: 527: 523: 519: 515: 511: 500: 498: 497:trace fossils 494: 493:plant fossils 490: 485: 483: 479: 475: 471: 467: 463: 459: 455: 451: 447: 443: 413: 385: 375: 371: 367: 364: 361: 357: 354: 351: 347: 342: 339: 326: 315: 311: 308: 295: 284: 280: 275: 266:49.6°N 86.5°W 247: 245: 241: 236: 208: 206: 202: 197: 194: 190: 187: 183: 180: 176: 173: 169: 164: 160: 156: 153: 150: 146: 143: 140: 136: 133: 130: 126: 121: 115: 110: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 42: 36: 33:71.9–67  29: 25: 20: 2727:Colorado GRP 2697:Edmonton GRP 2657:Saskatchewan 2523: 2507: 2490: 2468: 2464: 2448: 2443: 2383:cite journal 2357: 2348: 2307: 2303: 2187: 2183: 2137: 2133: 2109:. Retrieved 2097: 2074: 2052: 2032: 2021:. Retrieved 1987: 1962:. Retrieved 1958:the original 1919:. Retrieved 1915:the original 1848: 1844: 1834: 1821: 1810:. Retrieved 1797: 1767: 1758: 1701: 1667: 1666: 1658: 1657: 1635: 1633: 1625: 1624: 1603: 1595: 1594: 1562: 1532: 1531: 1523: 1522: 1501: 1500: 1492: 1491: 1470: 1469: 1461: 1460: 1439:E. longiceps 1438: 1436: 1428: 1427: 1416: 1404: 1392: 1390: 1372: 1370: 1362: 1361: 1329: 1312: 1281: 1274: 1262: 1259:ptilodontoid 1226: 1222: 1205: 1201: 1194: 1173: 1166: 1157:ptilodontoid 1145: 1138: 1095: 1091: 1084: 1063:M. conquista 1062: 1057:Meniscoessus 1055: 1034: 1027: 1009: 1001: 972: 964: 935: 928: 919:cimolodontid 902: 895: 882: 864: 857: 842:. Shells of 833: 827: 825: 795:Z. crenulata 794: 787: 770: 763: 734: 727: 712:, Alberta." 695: 688: 663: 656: 643: 625: 606: 596: 586: 553: 544:Oldman River 536: 506: 486: 441: 439: 369:Year defined 344:Type section 232:49.6; -114.1 2784:Crowfoot FM 2752:Sawtooth FM 2712:Foremost FM 2642:Fort Nelson 2637:Liard River 2595:Natural gas 2463:Listed as " 1768:crossed out 1747:Morphotaxon 1293:alphadontid 1282:T. russelli 1146:N. occultus 1103:NMC 17665. 1029:Leptalestes 966:Didelphodon 936:C. gracilis 911:, Alberta. 846:freshwater 803:, Alberta. 771:T. angulata 749:A floating 743:, Alberta. 735:T. aquatica 690:Hydropteris 677:Belongs in 664:C. tolmanii 271:49.6; -86.5 269: / 230: / 205:Coordinates 2834:Categories 2779:Wabamun FM 2759:Rundle GRP 2747:Rierdon FM 2717:Pakowki FM 2465:Edmontonia 2449:A. ornatus 2190:: 105328. 2111:2022-08-17 2023:2014-01-31 1964:2013-08-13 1921:2013-08-01 1812:2010-01-01 1789:References 1764:small text 1733:Ichnotaxon 1430:Edmontonia 1373:A. ornatus 1276:Turgidodon 1254:MOR 2535. 1075:cimolomyid 948:cimolomyid 903:C. nitidus 754:angiosperm 708:, east of 696:H. pinnata 658:Cardstonia 510:sandstones 476:along the 2794:Ireton FM 2774:Bakken FM 2769:Exshaw FM 2737:Ellis GRP 2707:Oldman FM 2627:foothills 2469:longiceps 2340:128823128 2332:0272-4634 2222:251481599 2214:0195-6671 2162:251354150 2154:1058-5893 1875:1932-6203 1702:Color key 1583:Material 1577:Location 1564:Theropods 1555:Theropods 1350:Material 1344:Location 1316:hadrosaur 1304:Dinosaurs 1286:Montana. 1267:species. 1251:Montana. 1178:Montana. 1150:Montana. 1096:thompsoni 1046:pediomyid 1039:Montana. 1035:L. toevsi 1003:Eodelphis 930:Cimolomys 909:Lundbreck 897:Cimolodon 879:Presence 835:Corbicula 789:Zlatkovia 640:Presence 540:Crowsnest 522:mudstones 518:coquinoid 503:Lithology 452:(71.9-67 446:formation 349:Named for 175:Sandstone 166:Lithology 158:Thickness 138:Underlies 122:spillway. 2799:Leduc FM 2789:Nisku FM 2764:Banff FM 2742:Swift FM 2663:Manitoba 2661:Western 1973:cite web 1930:cite web 1893:29166406 1845:PLOS ONE 1777:See also 1574:Species 1341:Species 1196:Pediomys 1129:Miacidae 1113:Miacidae 983:trigonid 883:Material 840:molluscs 826:Beds of 822:Molluscs 801:Cardston 741:Cardston 729:Tolmania 710:Cardston 644:Material 617:sabaloid 603:conifers 474:outcrops 359:Named by 218:114°06′W 199:Location 189:Mudstone 148:Overlies 2524:Troodon 2312:Bibcode 2192:Bibcode 1884:5699823 1853:Bibcode 1740:Ootaxon 1676:Alberta 1668:Troodon 1660:Troodon 1644:Alberta 1609:Alberta 1589:Images 1540:Alberta 1509:Alberta 1478:Montana 1447:Alberta 1381:Alberta 1356:Images 1264:Mesodma 1227:krejcii 1140:Nidimys 1086:Mesodma 890:Images 876:Species 866:Mammals 854:Mammals 848:mussels 844:unionid 811:eudicot 765:Trapago 751:aquatic 651:Images 637:Species 613:monocot 512:, grey 470:Montana 466:Alberta 460:of the 313:Country 307:Montana 294:Alberta 257:86°30′W 254:49°36′N 215:49°36′N 171:Primary 102:↓ 2675:plains 2338:  2330:  2220:  2212:  2160:  2152:  1996:  1891:  1881:  1873:  1586:Notes 1571:Genus 1353:Notes 1338:Genus 1318:foot. 829:Ostrea 722:fern. 627:Plants 619:palm. 598:Ginkgo 514:shales 495:, and 335:  325:Canada 322:  304:  291:  282:Region 2367:(PDF) 2336:S2CID 2218:S2CID 2158:S2CID 2018:(PDF) 1759:Notes 1711:Taxon 1670:sp." 1206:cooki 887:Notes 873:Genus 799:Near 739:Near 668:Near 648:Notes 634:Genus 608:Trapa 593:ferns 583:Flora 185:Other 179:shale 2467:cf. 2403:link 2396:help 2328:ISSN 2210:ISSN 2150:ISSN 1994:ISBN 1979:link 1936:link 1889:PMID 1871:ISSN 1638:sp. 1634:cf. 1225:cf. 1204:cf. 1094:cf. 1012:sp. 975:sp. 832:and 605:, a 526:coal 524:and 440:The 372:1883 193:coal 128:Type 41:PreꞒ 2371:doi 2320:doi 2200:doi 2188:140 2142:doi 2138:183 2102:doi 2098:ERA 1879:PMC 1861:doi 1291:An 1010:E.? 973:D.? 480:by 458:age 448:of 338:USA 2836:: 2515:^ 2499:^ 2476:^ 2456:^ 2411:^ 2387:: 2385:}} 2381:{{ 2369:. 2334:. 2326:. 2318:. 2308:30 2306:. 2302:. 2280:^ 2230:^ 2216:. 2208:. 2198:. 2186:. 2182:. 2170:^ 2156:. 2148:. 2136:. 2132:. 2120:^ 2100:. 2096:. 2084:^ 2062:^ 2041:^ 2005:^ 1975:}} 1971:{{ 1944:^ 1932:}} 1928:{{ 1901:^ 1887:. 1877:. 1869:. 1859:. 1849:12 1847:. 1843:. 1805:. 1766:; 1295:. 1257:A 1223:P. 1202:P. 1187:. 1183:A 1159:. 1155:A 1115:? 1092:M. 1077:. 1073:A 1048:. 1044:A 950:. 946:A 921:. 917:A 813:. 756:. 718:A 681:. 672:. 601:, 595:, 574:. 546:. 516:, 499:. 491:, 456:) 454:Ma 191:, 177:, 91:Pg 35:Ma 30:: 2556:e 2549:t 2542:v 2405:) 2398:) 2394:( 2377:. 2373:: 2342:. 2322:: 2314:: 2224:. 2202:: 2194:: 2164:. 2144:: 2114:. 2104:: 2026:. 2000:. 1981:) 1967:. 1938:) 1924:. 1895:. 1863:: 1855:: 1815:. 1005:? 968:? 327:, 296:, 96:N 86:K 81:J 76:T 71:P 66:C 61:D 56:S 51:O 46:Ꞓ

Index

Stratigraphic range
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

St. Mary Reservoir
Geological formation
Willow Creek Formation
Bearpaw Formation
Sandstone
shale
Mudstone
coal
Coordinates
49°36′N 114°06′W / 49.6°N 114.1°W / 49.6; -114.1
Approximate paleocoordinates
49°36′N 86°30′W / 49.6°N 86.5°W / 49.6; -86.5
Alberta
Montana
Canada

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