Zacanthoidesis anextinctCambriangenusofcorynexochidtrilobite.It was a nektobenthicpredatorycarnivore.Its remains have been found in Canada (British Columbia,especially in theBurgess Shale,andNewfoundland),Greenland,Mexico, and the United States (Alaska,Nevada,Utah,Vermont,andIdahofor whichZ. idahoensisis named).[1]Its major characteristics are a slenderexoskeletonwith 9thoracicsegments, pleurae with long spines, additional spines on the axial rings, and apygidiumthat is considerably smaller than itscephalon.[2]
| Zacanthoides | |
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| Genus: | Zacanthoides Walcott, 1888
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Species
edit- Z. idahoensis
- Z. kelsayae
- Z. romingeri(type species)
- Z. holopygus(unrecognized)
- Z. gilberti(unrecognized)
Synonyms
editReferences
edit- ^"Zacanthoides"Paleobiology Database,accessed March 28, 2011
- ^Coppold, Murray and Wayne Powell (2006).A Geoscience Guide to the Burgess Shale,p.58. The Burgess Shale Geoscience Foundation, Field, British Columbia.ISBN0-9780132-0-4.
- ^Jell, P.A. & J.M. Adrain 2003."Available generic names for trilobites"(PDF).(1.52MiB)Memoirs of the Queensland Museum48(2): 331-553. [see alsoAlphabetical Listing of Trilobite Generic Names
- ^Sepkoski, J.J. Jr. 2002. A compendium of fossil marine animal genera. D.J. Jablonski & M.L. Foote (eds.).Bulletins of American Paleontology363:1–560.Sepkoski's Online Genus Database
External links
edit- "Zacanthoides romingeri".Burgess Shale Fossil Gallery.Virtual Museum of Canada. 2011. Archived fromthe originalon 2020-11-12.Retrieved2023-01-21.
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