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Brassicicephalus ✝
Description | Exigua (synonym: Brassicicephalus) is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from 501 to 497 million years ago during the Dresbachian faunal stage of the late Cambrian Period. Exigua is only known from the central part of the headshield or cranidium, so free cheeks (or librigenae), thorax and pygidium are unknown. From Wikipedia article at https://en.wikipedia.org/wiki/Brassicicephalus, 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) | Life : Animalia : Arthropoda : Trilobita : Ptychopariida : Raymondinidae : Brassicicephalus | |||||||||||||||||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Arthropoda : Trilobita : Ptychopariida : Brassicicephalus | |||||||||||||||||||||||||||||||||||||||||||||
Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Scientific Name | Brassicicephalus Lochman, 1940 | |||||||||||||||||||||||||||||||||||||||||||||
Name Published In | J. Paleont., 14 | |||||||||||||||||||||||||||||||||||||||||||||
Opinions (PBDB) |
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Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 1 | |||||||||||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 497 - 485 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 497 - 485 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Motility | fast-moving (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Diet | carnivore (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
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/Brassicicephalus |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Brassicicephalus snowyensis species | accepted (GBIF) | No associated record in PBDB | |||
Brassicicephalus wolfensis species | accepted (GBIF) | No associated record in PBDB |
Synonymy List
Year | Name and Author |
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1940 | Brassicicephalus Lochmann |
2002 | Brassicicephalus Sepkoski, Jr. |
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!