220:
249:
277:
284:
256:
441:
trees within warm and temperate conditions, with broadleaf deciduous trees being dominant. Using the coexistence approach, the mean annual temperature has been estimated at 11.8–19.6 °C, with the mean temperatures of the warmest and coldest months at 19.8–28 °C and 3.9–5.9 °C respectively. Mean
383:
suggests the
Dazhang Formation was deposited during the late Paleocene. This dating is further supported by fossil evidence, as standard Paleocene fossils such as those of the snails
1184:
1015:
798:
1522:
659:
1424:
1113:
935:
132:
1497:
1449:
631:
122:
1472:
1136:
778:
1571:
1088:
915:
862:
709:
592:
1610:
1371:
1235:
1207:
1040:
684:
1347:
990:
890:
758:
235:
1161:
837:
385:
1942:"Analysis of leaf economics sheds light on the heterophylly and ecological strategies of Paleocene Ginkgo leaves from Henan Province, China"
522:
1396:
1060:
248:
1747:"Subdivision of the upper cretaceous and lower tertiary of the Tantou basin, the Lushi basin and the Lingbao Basin of W Henan"
2001:
425:
Judging from the lithology and absence of evaporative salt debris, the
Dazhang Formation is believed to have represented
2016:
172:
2011:
318:
276:
310:
1680:
Su, Li-Fei; Zhang, Qian-Qian; Sun, Yan-Kun; Zhang, Shao-Liang; Smith, Thierry; Li, Cheng-Sen (2022-11-28).
165:
1746:
1940:
Li, Qijia; Niu, Bingshan; Liu, Yusheng
Christopher; Jia, Hui; Li, Yu; Xu, Li; Quan, Cheng (2023-09-17).
1788:
438:
1941:
2021:
2006:
367:. Depending on the section, the color of the mudstone may vary from green, red-brown or gray-black.
2026:
351:, including those of plants and mammals. The formation is primarily composed of interbedded
1953:
1693:
112:
1758:
8:
336:
1957:
1697:
1977:
1722:
1681:
1981:
1969:
1922:
1804:
1762:
1727:
1709:
967:
1961:
1754:
1717:
1701:
1486:
1385:
433:
indicates the vegetation of the
Dazhang Formation was primarily a mixed forest of
429:
and semi-deep lake environments, with a mild and humid climate during deposition.
1965:
1682:"New evidence of the emergence of the East Asian monsoon in the early Palaeogene"
1705:
494:
348:
1995:
1973:
1926:
1808:
1766:
1713:
1648:
1627:
1413:
1077:
949:
673:
443:
426:
402:
187:
174:
62:
27:
1731:
1102:
1029:
851:
406:
380:
511:
37:
1224:
904:
879:
747:
726:
698:
648:
434:
430:
410:
82:
47:
1911:"The Paleocene-Eocene Palynoflora from the Tantou Basin in West Henan"
1336:
1315:
1294:
1273:
1252:
979:
540:
376:
364:
360:
356:
87:
1438:
1004:
504:
414:
398:
77:
72:
57:
52:
42:
1560:
1539:
1511:
1150:
344:
92:
67:
1787:
YongSheng, Tong; Wen, WANG Jing; JingFang, F. U. (2003-03-15).
960:
463:
326:
1909:
Da-ning, Wang; Ying-niang, Sun Xiu-yu and Zhao (1984-04-20).
560:
392:
340:
225:
207:
1910:
352:
1793:, a new tillodont (Mammalia) from the Paleocene of Henan"
1360:
417:) also supports a late Paleocene age for this formation.
1786:
1946:Palaeogeography, Palaeoclimatology, Palaeoecology
1908:
1993:
1679:
405:evidence based on large amounts of Paleocene
1939:
420:
1721:
283:
255:
1744:
558:
461:
155:Marl, oil shale, claystone and glutenite
1994:
1904:
1902:
1900:
1898:
1896:
1894:
1892:
1890:
1888:
1886:
1884:
1882:
1880:
1878:
1876:
1874:
1872:
1870:
1868:
1866:
1864:
1862:
1860:
1858:
1856:
1854:
1852:
1850:
1848:
1846:
1844:
1842:
1840:
1838:
1759:10.19615/j.cnki.1000-3118.1980.01.004
1915:Journal of Integrative Plant Biology
1836:
1834:
1832:
1830:
1828:
1826:
1824:
1822:
1820:
1818:
1782:
1780:
1778:
1776:
1675:
1673:
1671:
1669:
563:reported from the Dazhang Formation
466:reported from the Dazhang Formation
446:is believed to be 793.9–1389.4 mm.
13:
14:
2038:
1815:
1773:
1666:
449:
375:Comprehensive comparison of the
282:
275:
254:
247:
218:
35:
555:
458:
1933:
1738:
331:
322:
314:
1:
1659:
16:Geographic formation in China
2002:Geologic formations of China
1966:10.1016/j.palaeo.2023.111816
7:
1745:Tong, YS; Wang, JW (1980).
10:
2043:
1706:10.1038/s41598-022-24298-z
454:
1753:(in Chinese) (1): 21–27.
1608:
1569:
1520:
1233:
796:
707:
590:
551:
370:
291:Dazhang Formation (Henan)
263:Dazhang Formation (China)
241:
231:
213:
203:
164:
159:
151:
146:
138:
128:
118:
108:
26:
21:
2017:Paleogene System of Asia
421:Depositional environment
1797:Vertebrata PalAsiatica
1751:Vertebrata PalAsiatica
2012:Paleontology in Henan
1185:Polypodiaceoisporites
1016:Liquidambarpollenites
799:Cupuliferoipollenites
1523:Taxodiaceapollenites
660:Araliaceoipollenites
113:Geological formation
1958:2023PPP...63011816L
1698:2022NatSR..1220471S
439:broadleaf deciduous
347:dating back to the
319:traditional Chinese
184: /
28:Stratigraphic range
1686:Scientific Reports
1425:Rutaceoipollenites
1284:P. microverrucatus
1114:Paraalnipollenites
936:Fraxinoipollenites
869:E. trianguliformis
337:geologic formation
311:simplified Chinese
133:Gaoyugou Formation
1657:
1656:
1498:Sequoiapollenites
549:
548:
307:Dazhang Formation
303:
302:
294:Show map of Henan
266:Show map of China
22:Dazhang Formation
2034:
2022:Paleocene Series
2007:Cretaceous China
1986:
1985:
1937:
1931:
1930:
1906:
1813:
1812:
1784:
1771:
1770:
1742:
1736:
1735:
1725:
1677:
1529:T. bockwitzensis
1450:Salixipollenites
1326:P. tenuispinosus
1263:P. liaoningensis
1242:P. adenanthoides
632:Aquilapollenites
556:
536:Skull elements.
533:Wangpo Village.
501:Wangpo Village.
459:
333:
324:
316:
295:
286:
285:
279:
267:
258:
257:
251:
224:
222:
221:
199:
198:
196:
195:
194:
189:
188:33.39°N 111.11°E
185:
182:
181:
180:
177:
123:Tantou Formation
104:
34:
19:
18:
2042:
2041:
2037:
2036:
2035:
2033:
2032:
2031:
2027:Paleogene China
1992:
1991:
1990:
1989:
1938:
1934:
1907:
1816:
1785:
1774:
1743:
1739:
1678:
1667:
1662:
1473:Sapindaceidites
1137:Pinuspollenites
779:Caryapollenites
638:A. granibaculus
554:
457:
452:
423:
373:
343:. It preserves
299:
298:
297:
296:
293:
292:
289:
288:
287:
270:
269:
268:
265:
264:
261:
260:
259:
219:
217:
192:
190:
186:
183:
178:
175:
173:
171:
170:
103:
102:
101:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
40:
32:
31:
17:
12:
11:
5:
2040:
2030:
2029:
2024:
2019:
2014:
2009:
2004:
1988:
1987:
1932:
1917:(in Chinese).
1814:
1772:
1737:
1664:
1663:
1661:
1658:
1655:
1654:
1652:
1645:
1642:
1640:
1634:
1633:
1631:
1624:
1621:
1619:
1614:
1606:
1605:
1603:
1601:
1598:
1596:
1590:
1589:
1587:
1585:
1582:
1580:
1575:
1572:Ulmipollenites
1567:
1566:
1564:
1557:
1554:
1552:
1546:
1545:
1543:
1536:
1533:
1531:
1526:
1518:
1517:
1515:
1508:
1505:
1503:
1501:
1493:
1492:
1490:
1483:
1480:
1478:
1476:
1468:
1467:
1465:
1463:
1460:
1458:
1453:
1445:
1444:
1442:
1435:
1432:
1430:
1428:
1420:
1419:
1417:
1410:
1407:
1405:
1400:
1392:
1391:
1389:
1382:
1379:
1377:
1375:
1367:
1366:
1364:
1358:
1355:
1353:
1351:
1343:
1342:
1340:
1333:
1330:
1328:
1322:
1321:
1319:
1312:
1309:
1307:
1301:
1300:
1298:
1291:
1288:
1286:
1280:
1279:
1277:
1270:
1267:
1265:
1259:
1258:
1256:
1249:
1246:
1244:
1239:
1231:
1230:
1228:
1221:
1218:
1216:
1211:
1203:
1202:
1200:
1198:
1195:
1193:
1188:
1180:
1179:
1177:
1175:
1172:
1170:
1165:
1157:
1156:
1154:
1147:
1144:
1142:
1140:
1132:
1131:
1129:
1127:
1124:
1122:
1117:
1109:
1108:
1106:
1099:
1096:
1094:
1092:
1089:Osmundacidites
1084:
1083:
1081:
1074:
1071:
1069:
1064:
1056:
1055:
1053:
1051:
1048:
1046:
1044:
1036:
1035:
1033:
1026:
1023:
1021:
1019:
1011:
1010:
1008:
1001:
998:
996:
994:
986:
985:
983:
976:
973:
971:
964:
956:
955:
953:
946:
943:
941:
939:
931:
930:
928:
926:
923:
921:
919:
916:Euphorbiacites
911:
910:
908:
901:
898:
896:
894:
886:
885:
883:
876:
873:
871:
866:
863:Echitriporites
858:
857:
855:
848:
845:
843:
841:
833:
832:
830:
828:
825:
823:
817:
816:
814:
812:
809:
807:
802:
794:
793:
791:
789:
786:
784:
782:
774:
773:
771:
769:
766:
764:
762:
754:
753:
751:
744:
741:
739:
733:
732:
730:
723:
720:
718:
713:
710:Beaupreaidites
705:
704:
702:
695:
692:
690:
688:
680:
679:
677:
670:
667:
665:
663:
655:
654:
652:
645:
642:
640:
635:
627:
626:
624:
622:
619:
617:
611:
610:
608:
606:
603:
601:
599:A. metaplasmus
596:
593:Alnipollenites
588:
587:
584:
581:
576:
573:
570:
566:
565:
553:
550:
547:
546:
544:
537:
534:
531:
526:
518:
517:
515:
508:
502:
499:
497:
495:Pseudictopidae
491:
490:
487:
484:
479:
476:
473:
469:
468:
456:
453:
451:
450:Fossil content
448:
422:
419:
395:guangdongensis
388:xiaohegouensis
372:
369:
349:late Paleocene
301:
300:
290:
281:
280:
274:
273:
272:
271:
262:
253:
252:
246:
245:
244:
243:
242:
239:
238:
233:
229:
228:
215:
211:
210:
205:
201:
200:
168:
162:
161:
157:
156:
153:
149:
148:
144:
143:
140:
136:
135:
130:
126:
125:
120:
116:
115:
110:
106:
105:
98:
97:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
41:
36:
33:Late Paleocene
24:
23:
15:
9:
6:
4:
3:
2:
2039:
2028:
2025:
2023:
2020:
2018:
2015:
2013:
2010:
2008:
2005:
2003:
2000:
1999:
1997:
1983:
1979:
1975:
1971:
1967:
1963:
1959:
1955:
1951:
1947:
1943:
1936:
1928:
1924:
1920:
1916:
1912:
1905:
1903:
1901:
1899:
1897:
1895:
1893:
1891:
1889:
1887:
1885:
1883:
1881:
1879:
1877:
1875:
1873:
1871:
1869:
1867:
1865:
1863:
1861:
1859:
1857:
1855:
1853:
1851:
1849:
1847:
1845:
1843:
1841:
1839:
1837:
1835:
1833:
1831:
1829:
1827:
1825:
1823:
1821:
1819:
1810:
1806:
1802:
1798:
1794:
1792:
1783:
1781:
1779:
1777:
1768:
1764:
1760:
1756:
1752:
1748:
1741:
1733:
1729:
1724:
1719:
1715:
1711:
1707:
1703:
1699:
1695:
1691:
1687:
1683:
1676:
1674:
1672:
1670:
1665:
1653:
1650:
1646:
1643:
1641:
1639:
1638:U. tricostata
1636:
1635:
1632:
1629:
1625:
1622:
1620:
1618:
1615:
1613:
1612:
1611:Ulmoideipites
1607:
1604:
1602:
1599:
1597:
1595:
1592:
1591:
1588:
1586:
1583:
1581:
1579:
1576:
1574:
1573:
1568:
1565:
1562:
1558:
1555:
1553:
1551:
1548:
1547:
1544:
1541:
1537:
1534:
1532:
1530:
1527:
1525:
1524:
1519:
1516:
1513:
1509:
1506:
1504:
1502:
1500:
1499:
1495:
1494:
1491:
1488:
1484:
1481:
1479:
1477:
1475:
1474:
1470:
1469:
1466:
1464:
1461:
1459:
1457:
1454:
1452:
1451:
1447:
1446:
1443:
1440:
1436:
1433:
1431:
1429:
1427:
1426:
1422:
1421:
1418:
1415:
1411:
1408:
1406:
1404:
1401:
1399:
1398:
1394:
1393:
1390:
1387:
1383:
1380:
1378:
1376:
1374:
1373:
1372:Rhamnacidites
1369:
1368:
1365:
1362:
1359:
1356:
1354:
1352:
1350:
1349:
1345:
1344:
1341:
1338:
1334:
1331:
1329:
1327:
1324:
1323:
1320:
1317:
1313:
1310:
1308:
1306:
1303:
1302:
1299:
1296:
1292:
1289:
1287:
1285:
1282:
1281:
1278:
1275:
1271:
1268:
1266:
1264:
1261:
1260:
1257:
1254:
1250:
1247:
1245:
1243:
1240:
1238:
1237:
1236:Proteacidites
1232:
1229:
1226:
1222:
1219:
1217:
1215:
1212:
1210:
1209:
1208:Propylipollis
1205:
1204:
1201:
1199:
1196:
1194:
1192:
1191:P. triangulus
1189:
1187:
1186:
1182:
1181:
1178:
1176:
1173:
1171:
1169:
1168:P. granulatus
1166:
1164:
1163:
1159:
1158:
1155:
1152:
1148:
1145:
1143:
1141:
1139:
1138:
1134:
1133:
1130:
1128:
1125:
1123:
1121:
1118:
1116:
1115:
1111:
1110:
1107:
1104:
1100:
1097:
1095:
1093:
1091:
1090:
1086:
1085:
1082:
1079:
1075:
1072:
1070:
1068:
1065:
1063:
1062:
1058:
1057:
1054:
1052:
1049:
1047:
1045:
1043:
1042:
1041:Magnolipollis
1038:
1037:
1034:
1031:
1027:
1024:
1022:
1020:
1018:
1017:
1013:
1012:
1009:
1006:
1002:
999:
997:
995:
993:
992:
988:
987:
984:
981:
977:
974:
972:
970:
969:
968:G. henanensis
965:
963:
962:
958:
957:
954:
951:
950:magnoliophyte
947:
944:
942:
940:
938:
937:
933:
932:
929:
927:
924:
922:
920:
918:
917:
913:
912:
909:
906:
902:
899:
897:
895:
893:
892:
888:
887:
884:
881:
877:
874:
872:
870:
867:
865:
864:
860:
859:
856:
853:
849:
846:
844:
842:
840:
839:
835:
834:
831:
829:
826:
824:
822:
819:
818:
815:
813:
810:
808:
806:
803:
801:
800:
795:
792:
790:
787:
785:
783:
781:
780:
776:
775:
772:
770:
767:
765:
763:
761:
760:
756:
755:
752:
749:
745:
742:
740:
738:
735:
734:
731:
728:
724:
721:
719:
717:
716:B. aggregatus
714:
712:
711:
706:
703:
700:
696:
693:
691:
689:
687:
686:
685:Atlantopollis
682:
681:
678:
675:
671:
668:
666:
664:
662:
661:
657:
656:
653:
650:
646:
643:
641:
639:
636:
634:
633:
629:
628:
625:
623:
620:
618:
616:
613:
612:
609:
607:
604:
602:
600:
597:
595:
594:
589:
585:
582:
580:
577:
574:
571:
568:
567:
564:
562:
557:
545:
542:
538:
535:
532:
530:
527:
525:
524:
520:
519:
516:
513:
509:
506:
503:
500:
498:
496:
493:
492:
488:
485:
483:
480:
477:
474:
471:
470:
467:
465:
460:
447:
445:
444:precipitation
440:
436:
432:
428:
418:
416:
412:
408:
404:
403:Palynological
400:
396:
394:
389:
387:
382:
378:
368:
366:
362:
358:
354:
350:
346:
342:
338:
334:
328:
320:
312:
308:
278:
250:
240:
237:
234:
230:
227:
216:
212:
209:
206:
202:
197:
193:33.39; 111.11
169:
167:
163:
158:
154:
150:
145:
141:
137:
134:
131:
127:
124:
121:
117:
114:
111:
107:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
44:
39:
29:
25:
20:
1949:
1945:
1935:
1918:
1914:
1800:
1796:
1790:
1750:
1740:
1692:(1): 20471.
1689:
1685:
1649:magnoliopsid
1637:
1628:magnoliopsid
1616:
1609:
1594:U. undulosus
1593:
1577:
1570:
1549:
1528:
1521:
1496:
1471:
1455:
1448:
1437:A member of
1423:
1414:magnoliopsid
1402:
1395:
1370:
1348:Quercoidites
1346:
1325:
1304:
1283:
1262:
1241:
1234:
1223:A member of
1213:
1206:
1190:
1183:
1167:
1160:
1135:
1119:
1112:
1087:
1078:magnoliopsid
1066:
1059:
1039:
1030:Altingiaceae
1028:A member of
1014:
1003:A member of
991:Liliacidites
989:
966:
959:
934:
914:
891:Ephedripites
889:
878:A member of
868:
861:
836:
821:C. oviformis
820:
804:
797:
777:
759:Carpinipites
757:
746:A member of
736:
725:A member of
715:
708:
683:
674:magnoliopsid
658:
637:
630:
614:
598:
591:
578:
559:
528:
521:
481:
462:
424:
407:palynomorphs
391:
384:
381:stratigraphy
374:
330:
306:
304:
236:Tantou Basin
1305:P. tenellus
1162:Plicapollis
1120:P. confusus
1103:pteridopsid
975:30 leaves.
852:pteridopsid
838:Cyathidites
737:B. striatus
409:(including
386:Parhydrobia
191: /
166:Coordinates
1996:Categories
1952:: 111816.
1791:Yuesthonyx
1660:References
1225:Proteaceae
1067:M. corylus
880:Proteaceae
748:Proteaceae
727:Proteaceae
699:angiosperm
649:angiosperm
523:Yuesthonyx
435:coniferous
431:Palynology
411:Proteaceae
332:Dàzhāng zǔ
1982:262060653
1974:0031-0182
1927:1672-9072
1809:2096-9899
1803:(1): 55.
1767:1000-3118
1714:2045-2322
1617:U. krempi
1550:T. hiatus
1487:soapberry
1403:R. dolium
1397:Rhoipites
1386:buckthorn
1061:Momipites
980:ginkgoale
905:ephedrale
575:Presence
541:tillodont
529:Y. tingae
512:anagaloid
478:Presence
401:mammals.
377:lithology
365:glutenite
361:claystone
357:oil shale
147:Lithology
139:Thickness
119:Underlies
1732:36443349
1644:Pollen.
1623:Pollen.
1600:Pollen.
1584:Pollen.
1578:U. minor
1556:Pollen.
1535:Pollen.
1507:Pollen.
1482:Pollen.
1462:Pollen.
1456:S. minor
1439:Rutaceae
1434:Pollen.
1409:Pollen.
1381:Pollen.
1363:pollen.
1357:Pollen.
1337:proteale
1332:Pollen.
1316:proteale
1311:Pollen.
1295:proteale
1290:Pollen.
1274:proteale
1269:Pollen.
1253:proteale
1248:Pollen.
1220:Pollen.
1197:Spores.
1174:Pollen.
1146:Pollen.
1126:Pollen.
1098:Spores.
1073:Pollen.
1050:Pollen.
1025:Pollen.
1005:Liliales
1000:Pollen.
945:Pollen.
925:Pollen.
900:Pollen.
875:Pollen.
847:Spores.
827:Pollen.
811:Pollen.
805:C. fusus
788:Pollen.
768:Pollen.
743:Pollen.
722:Pollen.
694:Pollen.
669:Pollen.
644:Pollen.
621:Pollen.
615:A. verus
605:Pollen.
579:Material
505:Mandible
482:Material
415:Ulmaceae
399:anagalid
179:111°07′E
160:Location
129:Overlies
1954:Bibcode
1723:9705385
1694:Bibcode
1561:conifer
1540:conifer
1512:conifer
1151:conifer
586:Images
572:Species
489:Images
475:Species
464:Mammals
455:Mammals
442:annual
345:fossils
335:) is a
214:Country
176:33°23′N
152:Primary
142:373.2 m
99:↓
1980:
1972:
1925:
1807:
1765:
1730:
1720:
1712:
1214:P. sp.
961:Ginkgo
561:Plants
552:Plants
397:, and
371:Dating
329::
327:pinyin
321::
313::
232:Extent
223:
204:Region
1978:S2CID
1921:(4).
583:Notes
569:Genus
486:Notes
472:Genus
427:delta
393:Opeas
341:China
226:China
208:Henan
1970:ISSN
1923:ISSN
1805:ISSN
1763:ISSN
1728:PMID
1710:ISSN
437:and
413:and
390:and
379:and
363:and
353:marl
305:The
109:Type
38:PreꞒ
1962:doi
1950:630
1755:doi
1718:PMC
1702:doi
1361:Oak
903:An
697:An
647:An
510:An
339:in
323:大章組
315:大章组
1998::
1976:.
1968:.
1960:.
1948:.
1944:.
1919:26
1913:.
1817:^
1801:41
1799:.
1795:.
1775:^
1761:.
1749:.
1726:.
1716:.
1708:.
1700:.
1690:12
1688:.
1684:.
1668:^
1651:.
1647:A
1630:.
1626:A
1563:.
1559:A
1542:.
1538:A
1514:.
1510:A
1489:.
1485:A
1441:.
1416:.
1412:A
1388:.
1384:A
1339:.
1335:A
1318:.
1314:A
1297:.
1293:A
1276:.
1272:A
1255:.
1251:A
1227:.
1153:.
1149:A
1105:.
1101:A
1080:.
1076:A
1032:.
1007:.
982:.
978:A
952:.
948:A
907:.
882:.
854:.
850:A
750:.
729:.
701:.
676:.
672:A
651:.
543:.
539:A
514:.
507:.
359:,
355:,
325:;
317:;
88:Pg
30::
1984:.
1964::
1956::
1929:.
1811:.
1789:"
1769:.
1757::
1734:.
1704::
1696::
309:(
93:N
83:K
78:J
73:T
68:P
63:C
58:D
53:S
48:O
43:Ꞓ
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
