Zacanthoides
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| Zacanthoides | |
|---|---|
| Pencil and paper sketch of Zacanthoides typicalis. The animal has a rounded exoskeleton head and a long torso from which spines are protruding. | |
| Zacanthoides typicalis by C.D Walcott (1886) | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Corynexochida |
| Family: | †Zacanthoididae |
| Genus: | †Zacanthoides Walcott, 1888 |
Zacanthoides is an extinct Cambrian genus of corynexochid trilobite. It was a nektobenthic predatory carnivore. Its remains have been found in Canada (British Columbia, especially in the Burgess Shale, and Newfoundland), Greenland, Mexico, and the United States (Alaska, Nevada, Utah, Vermont, and Idaho for which Z. idahoensis is named).[1] Its major characteristics are a slender exoskeleton with 9 thoracic segments, pleurae with long spines, additional spines on the axial rings, and a pygidium that is considerably smaller than its cephalon.[2]
Species
[edit | edit source]- Zacanthoides idahoensis
- Zacanthoides kelsayae
- Zacanthoides romingeri (type species)
- Zacanthoides holopygus (unrecognized)
- Zacanthoides gilberti (unrecognized)
Synonyms
[edit | edit source]References
[edit | edit source]- ^ "Zacanthoides" Archived 2007-10-01 at the Wayback Machine 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. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
- ^ Jell, P.A. & J.M. Adrain 2003. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). (1.52 MiB) Memoirs of the Queensland Museum 48(2): 331-553. [see also Alphabetical 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 Paleontology 363: 1–560. Sepkoski's Online Genus Database
External links
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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