| Revision as of 19:19, 21 April 2023 editMonster Iestyn (talk | contribs)Autopatrolled, Extended confirmed users, Page movers28,069 edits the genus, species and order are extinct← Previous edit | Revision as of 15:11, 3 January 2024 edit undoRandomRatplay (talk | contribs)37 editsNo edit summaryTags: Reverted Visual editNext edit → | ||
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| {{Short description|Extinct genus of crustaceans}} | {{Short description|Extinct genus of crustaceans}} | ||
| This unusual ] is known as '''Urokodia aequalis'''. The species was described from only a few (~15) examples. With the discovery of the ] in 1984 a window on the ] in ] was opened. The diversity of soft-tissue fossils is astonishing: ], medusiforms, sponges, priapulids, annelid like worms, echinoderms, arthropods (including trilobites), hemichordates, chordates, and the first agnathan fish make up just a small fraction of the total.{{taxobox | |||
| {{taxobox | |||
| | fossil_range = {{fossil range|Cambrian Stage 3|Mid Cambrian}} | | fossil_range = {{fossil range|Cambrian Stage 3|Mid Cambrian}} | ||
| | image = 20220222 Urokodia aequalis diagrammatic reconstruction.png | | image = 20220222 Urokodia aequalis diagrammatic reconstruction.png | ||
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| ''Urokodia aequalis'' is an extinct genus of ] from the early ]. The taxon is only known from the ] of China based on some 15 specimens.<ref>{{Cite journal|last1=Hou|first1=Xian-Guang|last2=Aldridge|first2=Richard J|last3=Bergstrom|first3=Jan|last4=Siveter|first4=David J.|date=1989|title=The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life}}</ref> Its segmentation resembles that of a ] and it possessed head and tail shields with thorny spikes. It has some similarities to the arthropod '']'' that is known from both the ] of Canada and the ] of China. Recently, the taxon has been considered a member of the order Mollisoniida, alongside ''], ],'' and ''],'' the group are suggested to be stem-].<ref>{{Cite journal|last1=Lerosey-Aubril|first1=Rudy|last2=Skabelund|first2=Jacob|last3=Ortega-Hernández|first3=Javier|date=2020-04-09|title=Revision of the mollisoniid chelicerate(?) Thelxiope, with a new species from the middle Cambrian Wheeler Formation of Utah|journal=PeerJ|volume=8|pages=e8879|doi=10.7717/peerj.8879|pmid=32296605|pmc=7151752|issn=2167-8359|doi-access=free}}</ref> | |||
| == References == | == References == | ||
Revision as of 15:11, 3 January 2024
Extinct genus of crustaceansThis unusual arthropod is known as Urokodia aequalis. The species was described from only a few (~15) examples. With the discovery of the Chengjiang Biota in 1984 a window on the Cambrian Explosion in China was opened. The diversity of soft-tissue fossils is astonishing: algae, medusiforms, sponges, priapulids, annelid like worms, echinoderms, arthropods (including trilobites), hemichordates, chordates, and the first agnathan fish make up just a small fraction of the total.
| Urokodia Temporal range: Cambrian Stage 3–Mid Cambrian PreꞒ Ꞓ O S D C P T J K Pg N | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Order: | †Mollisoniida |
| Genus: | †Urokodia |
| Species: | †U. aequalis |
Urokodia aequalis is an extinct genus of arthropod from the early Cambrian. The taxon is only known from the Maotianshan Shales of China based on some 15 specimens. Its segmentation resembles that of a millipede and it possessed head and tail shields with thorny spikes. It has some similarities to the arthropod Mollisonia that is known from both the Burgess Shale of Canada and the Kaili biota of China. Recently, the taxon has been considered a member of the order Mollisoniida, alongside Mollisonia, Thelxiope, and Corcorania, the group are suggested to be stem-chelicerates.
References
- Hou, Xian-Guang; Aldridge, Richard J; Bergstrom, Jan; Siveter, David J. (1989). "The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life".
{{cite journal}}: Cite journal requires|journal=(help) - Lerosey-Aubril, Rudy; Skabelund, Jacob; Ortega-Hernández, Javier (2020-04-09). "Revision of the mollisoniid chelicerate(?) Thelxiope, with a new species from the middle Cambrian Wheeler Formation of Utah". PeerJ. 8: e8879. doi:10.7717/peerj.8879. ISSN 2167-8359. PMC 7151752. PMID 32296605.
- Urokodia aequalis Arthropod from Maotianshan Shales - URL retrieved September 11, 2010
| Taxon identifiers | |
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| Urokodia aequalis | |
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