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Cyclostomiceratidae ✝
Description | Cylostomiceratidae is a family of Early Ordovician, (Cassinian), ellesmerocerid cephalopods characterized by short, essentially straight shells, a fairly rapidly expanding phragmocone and a ventral siphuncle in which septal necks are almost non-existent and connecting rings are thick and layered. As typical of the Ellesmerocerida, chambers are short, septa close spaced. From Wikipedia article at https://en.wikipedia.org/wiki/Cyclostomiceratidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||||||||
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Source Data |
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Rank | family | |||||||||||||||||||||||||||||||||||||||
Taxonomy (GBIF) | Life : Animalia : Mollusca : Cephalopoda : Cyclostomiceratidae | |||||||||||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Ellesmerocerida : Cyclostomiceratidae | |||||||||||||||||||||||||||||||||||||||
Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Scientific Name | Cyclostomiceratidae | |||||||||||||||||||||||||||||||||||||||
Opinions (PBDB) |
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Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 19 | |||||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 485 - 478 Ma Paleozoic | |||||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 461 - 450 Ma Ordovician | |||||||||||||||||||||||||||||||||||||||
Environment | marine (based on Ellesmerocerida) | |||||||||||||||||||||||||||||||||||||||
Motility | actively mobile (based on Ellesmerocerida) | |||||||||||||||||||||||||||||||||||||||
Vision | well-developed (based on Cephalopoda) | |||||||||||||||||||||||||||||||||||||||
Diet | carnivore (based on Cephalopoda) | |||||||||||||||||||||||||||||||||||||||
Taphonomy | aragonite (based on Ellesmerocerida) | |||||||||||||||||||||||||||||||||||||||
Primary Reference (PBDB) | A. G. Unklesbay and R. S. Young. 1956. Early Ordovician nautiloids from Virginia. Journal of Paleontology 30(3):481-491 | |||||||||||||||||||||||||||||||||||||||
Wikipedia | https://en.wikipedia.org/wiki/Cyclostomiceratidae |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Cyclostomiceras ✝ genus | accepted (GBIF) listed (PBDB) | 15 | 485 Ma Cambrian | 461 Ma Middle Ordovician | |
Eocyclostomiceras ✝ genus | accepted (GBIF) listed (PBDB) | ||||
Microstomiceras ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 472 Ma Early/Lower Ordovician | 472 Ma Early/Lower Ordovician | |
Paracyclostomiceras ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 472 Ma Early/Lower Ordovician | 466 Ma Middle Ordovician | |
Pictetoceras ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 472 Ma Early/Lower Ordovician | 472 Ma Early/Lower Ordovician |
Synonymy List
Year | Name and Author |
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1925 | Cyclostomiceratidae Foerste |
1998 | Cyclostomiceratidae King |
2005 | Cyclostomiceratidae Kröger and Mutvei |
2009 | Cyclostomiceratidae Kröger and Landing |
2011 | Cyclostomiceratidae Kröger and Evans |
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!