135:
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was between 6 and 10 cm (2.4 and 3.9 in) long and from 4 to 5.5 cm (1.6 to 2.2 in) wide, with a bilaterally symmetrical shape, larger on the anterior end and narrower at the posterior. The anterior part features a smooth "fringe" followed by a surface "covered by fine ribs and
338:
made of a chitin-like, non mineralized substance, protecting the animal while "creeping or gliding" over the sea bed. In the same reconstruction, the smooth zone was considered an imprint of the soft tissue beneath the dorsal carapace.
324:, that is, in which the corresponding segments on the left and right sides do not line up, but are staggered. This is a feature shared by other forms belonging to the proposed
906:
970:
893:
975:
965:
805:
723:
Gehling, J. G.; Droser, M. L. (2009). "Textured
Organic Surfaces Associated with the Ediacara Biota in South Australia".
684:
gen. et sp. n. and related carapace‐bearing
Ediacaran fossils from the Vendian of the Winter Coast, White Sea, Russia"
990:
980:
647:
134:
985:
320:
sutura", also described as a "quilt" with narrow, tightly packed chambers The symmetry of these ribs is a
846:
932:
210:
732:
960:
765:"Anatomical Information Content in the Ediacaran Fossils and Their Possible Zoological Affinities"
705:
129:
937:
919:
911:
786:
370:
924:
776:
740:
695:
334:
The original reconstruction by
Fedonkin proposed that the ridged surface was a convex, thin
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84:
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33:
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764:
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277:. It was first discovered in 1977, and described as a new species in a new
863:
595:
350:
is often found together with other species from the
Ediacara biota, like
335:
79:
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59:
54:
44:
638:, since all of them are sharing a dextrally bent dorsal medial chamber.
898:
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840:
325:
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844:
806:"New Proarticulata from the Vendian of the Arkhangel'sk Region"
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in 2002. It lived about 555 million years ago. Fossils of
853:
550:Proposed cladogram of the relationships between
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671:
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665:
663:
8:
758:
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754:
841:
112:
20:
780:
699:
614:as the closest relative, separated from
599:have also been directly compared to it.
659:
7:
971:Monotypic prehistoric animal genera
769:Integrative and Comparative Biology
456:
432:
408:
398:
29:Temporal range: Ediacaran, around
14:
133:
745:10.1016/j.earscirev.2009.03.002
1:
976:Fossil taxa described in 2002
966:Prehistoric bilaterian genera
309:Sketch reconstruction of the
819:(3): 247–253. Archived from
554:, according to Dzik (2003)
1007:
688:Italian Journal of Zoology
580:, as part of the proposed
390:Taxonomy and relationships
804:Ivantsov, A. Yu. (2004).
701:10.1080/11250000209356456
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130:Scientific classification
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23:
678:Fedonkin, M. A. (2002).
648:List of Ediacaran genera
813:Paleontological Journal
564:most closely resembles
293:. All known fossils of
313:
933:Paleobiology Database
725:Earth-Science Reviews
576:and, more distantly,
308:
248:, identified to be a
782:10.1093/icb/43.1.114
602:Jerzy Dzik includes
297:are external molds.
737:2009ESRv...96..196G
314:
991:Fossils of Russia
981:White Sea fossils
948:
947:
920:Open Tree of Life
847:Taxon identifiers
763:Dzik, J. (2003).
560:Morphologically,
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265:, known from the
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202:A. ivantsovi
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682:Andiva ivantsovi
675:
457:
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311:Andiva ivantsovi
283:Mikhail Fedonkin
238:Andiva ivantsovi
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223:Andiva ivantsovi
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123:Andiva ivantsovi
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291:South Australia
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986:Ediacaran life
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775:(1): 114–126.
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731:(3): 196–206.
715:
694:(2): 175–181.
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625:Praecambridium
618:and closer to
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471:Praecambridium
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322:glide symmetry
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289:also occur in
255:animal in the
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189:Fedonkin, 2002
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16:Vendian fossil
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826:on 2007-09-27
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631:
630:Archaeaspinus
627:
626:
621:
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613:
609:
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592:
591:
590:Archaeaspinus
586:
585:Proarticulata
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477:Archaeaspinus
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383:Tribrachidium
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329:Proarticulata
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263:Proarticulata
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253:triploblastic
251:
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229:Fedonkin 2002
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211:Binomial name
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170:Proarticulata
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26:
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854:
828:. Retrieved
821:the original
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469:
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386:and others.
381:
377:Parvancorina
375:
369:
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294:
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267:Winter Coast
237:
236:
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217:
201:
200:
183:
182:
122:
24:
18:
879:Wikispecies
616:Dickinsonia
612:Chondroplon
608:Dipleurozoa
578:Dickinsonia
573:Chondroplon
567:Ovatoscutum
552:Dipleurozoa
500:Chondroplon
417:Dickinsonia
403:Dipleurozoa
353:Dickinsonia
343:Association
301:Description
961:Cephalozoa
955:Categories
830:2013-02-02
654:References
365:Kimberella
250:bilaterian
121:Fossil of
441:Spriggina
271:White Sea
257:Ediacaran
195:Species:
153:Kingdom:
147:Eukaryota
32:555
870:Q4754504
864:Wikidata
791:21680416
710:85352552
642:See also
596:Cyanorus
371:Brachina
336:carapace
163:Phylum:
157:Animalia
143:Domain:
925:4722178
912:1142769
899:4579304
733:Bibcode
610:, with
606:in the
243:Vendian
220:†
199:†
176:Genus:
101:↓
938:152318
885:Andiva
855:Andiva
789:
708:
635:Vendia
620:Yorgia
604:Andiva
582:phylum
562:Andiva
506:Andiva
483:Vendia
465:Yorgia
359:Yorgia
348:Andiva
317:Andiva
295:Andiva
287:Andiva
275:Russia
260:phylum
246:fossil
184:Andiva
25:Andiva
907:IRMNG
824:(PDF)
809:(PDF)
706:S2CID
326:taxon
279:genus
241:is a
894:GBIF
787:PMID
632:and
593:and
40:PreꞒ
777:doi
741:doi
696:doi
281:by
957::
935::
922::
909::
896::
881::
866::
817:38
815:.
811:.
785:.
773:43
771:.
767:.
753:^
739:.
729:96
727:.
704:.
692:69
690:.
686:.
662:^
628:,
622:,
587:.
570:,
503:,
480:,
474:,
468:,
380:,
374:,
368:,
362:,
356:,
331:.
273:,
269:,
90:Pg
34:Ma
833:.
793:.
779::
747:.
743::
735::
712:.
698::
680:"
180:†
167:†
95:N
85:K
80:J
75:T
70:P
65:C
60:D
55:S
50:O
45:Ꞓ
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