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Craniscus
| Description | Craniscus is a genus of small brachiopods (lamp shells). The shell is approximately round to square with one side rounded. The ventral valve is approximately flat and attached to the underground by the entire surface. The outside of the dorsal valve is more or less conical, the inside is divided by three ridges that join in the center. From Wikipedia article at https://en.wikipedia.org/wiki/Craniscus, 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 : Brachiopoda : Craniata : Craniida : Craniidae : Craniscus | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Craniscus Dall, 1871 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Name Published In | Dall, W. H. (1871). Report on the Brachiopoda obtained by the United States Coast Survey Expedition, in charge of L. F. de Pourtales, with a revision of the Craniidae and Discinidae. Harvard University, Museum of Comparative Zoology, Bulletin. 3(1):1– 45, 2 pl. | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 4 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 2 (50%) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 161 - 156 Ma Jurassic | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Craniata) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | stationary (based on Craniida) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Craniata) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Craniida) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite (based on Craniida) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| 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/Craniscus |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Craniscus hesperius ✝ species | accepted (GBIF) listed (PBDB) | 1 | 109 Ma Early/Lower Cretaceous | 109 Ma Early/Lower Cretaceous | |
| Craniscus izyumensis ✝ species | accepted (GBIF) listed (PBDB) | 1 | 161 Ma Jurassic | 161 Ma Jurassic | |
| Craniscus japonicus species | listed (PBDB) | 3 | 0.78 Ma Pleistocene | 0 Ma Extant | |
| Craniscus tripartitus species | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
|---|---|
| 1871 | Craniscus Dall |
| 2000 | Craniscus Williams et al. p. 173 |
| 2002 | Craniscus 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!
