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fossils. Over 500 specimen are known, and length ranges 1β30 mm (0.039β1.181 in). They appear to have been bottom feeders, sifting sediment from the seafloor in their mouths.
263:, like "head" segment that still has traits of simply being another generic body segment, for example having bristles poking out of it, which no modern annelid shares.
419:
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360:"New 508-million-year-old bristle worm species from British Columbia's Burgess Shale wiggles into evolutionary history"
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252:(bristles) on each of up to 25 segments, serving to propel it through mud or water.
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309:"A New Burgess Shale Polychaete and the Origin of the Annelid Head Revisited"
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279:" (in British Columbia, where its fossils were found) and species name
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248:. It appears to have been an aquatic worm with about 56
283:is from Barbara Polk Milstein, a researcher on the
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307:Nanglu, Karma; Caron, Jean-Bernard (2018).
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255:The only one known species in the genus,
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16:Extinct genus of annelid worms
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420:Fossil taxa described in 2018
410:Prehistoric protostome genera
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430:Prehistoric annelid genera
425:Cambrian genus extinctions
390:Prehistoric marine animals
257:Kootenayscolex barbarensis
214:Kootenayscolex barbarensis
415:Cambrian British Columbia
326:10.1016/j.cub.2017.12.019
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124:Scientific classification
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405:Monotypic annelid genera
232:is the extinct genus of
220:Nanglu & Caron, 2018
180:Nanglu & Caron, 2018
277:Kootenay National Park
275:, means "worm from
193:K. barbarensis
118:Paratype specimen
440:Fossils of Canada
435:Polychaete genera
319:(2): 319β326.e1.
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400:Cambrian animals
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246:British Columbia
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32:Cambrian Stage 5
29:Temporal range:
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313:Current Biology
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273:Kootenascolex
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236:resembling a
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367:. Retrieved
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238:bristle worm
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281:barbarensis
267:Description
240:, found in
384:Categories
369:2018-01-22
291:References
335:0960-9822
186:Species:
147:Kingdom:
141:Eukaryota
395:Annelids
364:phys.org
343:29374441
261:annelids
161:Annelida
157:Phylum:
151:Animalia
137:Domain:
250:chaetae
234:annelid
211:†
190:†
167:Genus:
98:↓
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339:PMID
331:ISSN
37:Preκ
321:doi
386::
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351:^
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317:28
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299:^
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87:Pg
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171:β
92:N
82:K
77:J
72:T
67:P
62:C
57:D
52:S
47:O
42:κ
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