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Cyclostomiceratidae âśť
| 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 âśť genus | accepted (GBIF) listed (PBDB) | 15 | 485 Ma Cambrian | 461 Ma Middle Ordovician | |
| Eocyclostomiceras âśť genus | accepted (GBIF) listed (PBDB) | ||||
| Microstomiceras âśť genus | accepted (GBIF) listed (PBDB) | 1 | 472 Ma Early/Lower Ordovician | 472 Ma Early/Lower Ordovician | |
| Paracyclostomiceras âśť genus | accepted (GBIF) listed (PBDB) | 3 | 472 Ma Early/Lower Ordovician | 466 Ma Middle Ordovician | |
| Pictetoceras âśť 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!
