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connecting with the head is tentatively reconstructed as a hydrostatic canal and/or vascular system; if this interpretation is correct, the tentacles might have been controlled by fluid pressure, and individuals could have fed by snaring either small prey or edible particles in the tentacles and bringing the tentacles to the mouth, as in living sea cucumbers. Structures on the back of the head have been noted as potential pharyngeal pores, which suggests a relationship with early echinoderms. The whole animal was 3-4 cm long. They were probably gregarious, as up to eight individuals have been found on the same slab. The six specimens of
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A mouth opened between the tentacles, leading internally to a pharynx, a large lentil-shaped stomach, a narrower straight intestine, and an anus at the end of the "tail." The tentacles were softer than the body and probably extensible. A dark line running down the center of each tentacle and
320:
is known from over 160 specimens. It possessed a pair of branching tentacles and a tough but flexible body that curved helically to the right like a ram's horn and was divided into at least 13 segments. A flexible, extensible
574:"Herpetogaster collinsi from the Cambrian of China elucidates the dispersal and palaeogeographic distribution of early deuterostomes and the origin of the ambulacrarian larva"
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624:
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849:
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381:"Tentaculate Fossils from the Cambrian of Canada (British Columbia) and China (Yunnan) Interpreted as Primitive Deuterostomes"
839:
653:
Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the
Greater Phyllopod Bed community, Burgess Shale".
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emerged from the body at about the ninth segment and secured the animal to the sea floor, often by attaching to the
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from the early
Cambrian of Nevada (Series 2, Stage 4) and its implications for the evolution of deuterostomes".
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Yang, Xianfeng; Kimmig, Julien; Schiffbauer, James D.; Peng, Shanchi (2023-11-07).
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Yang, Xianfeng; Kimmig, Julien; Lieberman, Bruce S.; Peng, Shanchi (2020-08-28).
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Kimmig, Julien; Meyer, Ronald C.; Lieberman, Bruce S. (2019-01-01). "
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Caron, Jean-Bernard; Conway Morris, Simon; Shu, Degan (2010-03-08).
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from the early
Cambrian Chengjiang biota of South China"
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It is not known whether the attachment was permanent.
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Canada, Royal
Ontario Museum and Parks (2011-06-10).
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719:. Virtual Museum of Canada. 2011. Archived from
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278:of China, Blang Formation of China,
503:"A new species of the deuterostome
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289:of Canada containing the species
16:Extinct genus of Cambrian animals
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357:Paleobiota of the Burgess Shale
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850:Fossil taxa described in 2010
29:Temporal range: Early to mid
717:Burgess Shale Fossil Gallery
406:10.1371/journal.pone.0009586
343:are known from the Greater
866:
845:Cambrian genus extinctions
675:10.2110/palo.2003.P05-070R
532:10.1007/s00114-020-01695-w
472:10.1017/S0016756818000389
298:Herpetogaster haiyanensis
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121:Scientific classification
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36:Chengjiang–Burgess shale
629:burgess-shale.rom.on.ca
711:Herpetogaster collinsi
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292:Herpetogaster collinsi
115:Specimens and diagram
840:Burgess Shale fossils
511:The Science of Nature
312:
739:at the Fossil Wiki.
667:2006Palai..21..451C
625:"The Burgess Shale"
591:10.7717/peerj.16385
523:2020SciNa.107...37Y
464:2019GeoM..156..172K
452:Geological Magazine
397:2010PLoSO...5.9586C
271:of animal from the
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723:on 2020-11-12
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187:Cambroernida
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171:Ambulacraria
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318:H. collinsi
313:Restoration
305:Description
266:cambroernid
225:H. collinsi
829:Categories
727:2023-01-21
639:2018-10-27
584:: e16385.
363:References
165:Stem group
600:2167-8359
541:1432-1904
517:(5): 37.
488:134642027
480:1469-5081
415:1932-6203
144:Kingdom:
138:Eukaryota
772:Q5743704
766:Wikidata
691:53646959
683:20173022
609:10637255
559:32857275
433:20221405
385:PLOS ONE
351:See also
216:Species
148:Animalia
134:Domain:
31:Cambrian
812:7997173
799:1473510
786:9225037
663:Bibcode
655:PALAIOS
550:7544619
519:Bibcode
460:Bibcode
424:2833208
393:Bibcode
263:extinct
193:Genus:
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331:Vauxia
327:sponge
323:stolon
261:is an
247:, 2020
245:et al.
233:, 2010
231:et al.
229:Caron
210:, 2010
208:et al.
206:Caron
794:IRMNG
687:S2CID
679:JSTOR
578:PeerJ
484:S2CID
269:genus
243:Yang
178:Clade
781:GBIF
596:ISSN
555:PMID
537:ISSN
476:ISSN
429:PMID
411:ISSN
301:.
295:and
41:PreꞒ
671:doi
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