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Toragnostus ✝
Description | Toragnostus is a genus of trilobites restricted to the late Middle Cambrian. Its remains have been found in the United States, Greenland, Denmark, China, Sweden, the Russian Federation, and Kazakhstan. Its headshield and tailshield are almost completely effaced and it has two thorax segments. From Wikipedia article at https://en.wikipedia.org/wiki/Toragnostus, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||||||||||||||
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Source Data |
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Rank | genus | |||||||||||||||||||||||||||||||||||||||||||||
Taxonomy (GBIF,PBDB) | Life : Animalia : Arthropoda : Trilobita : Agnostida : Phalacromidae : Toragnostus | |||||||||||||||||||||||||||||||||||||||||||||
Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Scientific Name | Toragnostus Robison, 1988 | |||||||||||||||||||||||||||||||||||||||||||||
Name Published In | Medd Gronl Geosci 20 | |||||||||||||||||||||||||||||||||||||||||||||
Opinions (PBDB) |
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Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 2 | |||||||||||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 505 - 501 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 505 - 501 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Motility | slow-moving (based on Agnostida) | |||||||||||||||||||||||||||||||||||||||||||||
Vision | blind | |||||||||||||||||||||||||||||||||||||||||||||
Diet | detritivore (based on Agnostida) | |||||||||||||||||||||||||||||||||||||||||||||
Ontogeny | molting,addition of parts (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Taphonomy | low Mg calcite, chitin (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Primary Reference (PBDB) | J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560 | |||||||||||||||||||||||||||||||||||||||||||||
Wikipedia | https://en.wikipedia.org/wiki/Toragnostus |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Toragnostus orbiculatus ✝ species | accepted (GBIF) listed (PBDB) | 1 | 505 Ma Cambrian | 505 Ma Cambrian |
Synonymy List
Year | Name and Author |
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1988 | Toragnostus Robison |
2002 | Toragnostus Sepkoski, Jr. |
2008 | Toragnostus Ergaliev and Ergaliev |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!