BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems
Cheirocrinidae ✝
| Source Data |
| |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rank | family (PBDB) | |||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Echinodermata : Rhombifera : Cheirocrinidae | |||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
| |||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
| |||||||||||||||||||||||||||||||||||||||
| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 26 | |||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 485 - 479 Ma Paleozoic | |||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 433 - 427 Ma Silurian | |||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Echinodermata) | |||||||||||||||||||||||||||||||||||||||
| Motility | stationary, attached (based on Rhombifera) | |||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Rhombifera) | |||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Rhombifera) | |||||||||||||||||||||||||||||||||||||||
| Reproduction | dispersal=water,planktonic (based on Echinodermata) | |||||||||||||||||||||||||||||||||||||||
| Ontogeny | accretion,addition of parts (based on Echinodermata) | |||||||||||||||||||||||||||||||||||||||
| Taphonomy | high Mg calcite (based on Echinodermata) | |||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | C. D. Sumrall and G. A. Schumacher. 2002. Cheirocystis fultonensis, a new glyptocystitoid rhombiferan from the Upper Ordovician of the Cincinnati Arch - comments on cheirorinid ontogeny. Journal of Paleontology 76(5):843-851 | |||||||||||||||||||||||||||||||||||||||
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Acanthalepis ✝ genus | listed (PBDB) | ||||
| Cheirocrinus ✝ genus | listed (PBDB) | 70 | 485 Ma Cambrian | 433 Ma Silurian | |
| Cheirocystella ✝ genus | listed (PBDB) | 4 | 485 Ma Cambrian | 450 Ma Late/Upper Ordovician | |
| Cheirocystis ✝ genus | listed (PBDB) | 8 | 468 Ma Middle Ordovician | 458 Ma Late/Upper Ordovician | |
| Coronocystis ✝ genus | listed (PBDB) | 13 | 470 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
| Hadrocystis ✝ genus | listed (PBDB) | 1 | 472 Ma Early/Lower Ordovician | 472 Ma Early/Lower Ordovician | |
| Homocystites ✝ genus | listed (PBDB) | 26 | 461 Ma Middle Ordovician | 443 Ma Silurian | |
| Sprinkleocystis ✝ genus | listed (PBDB) | 1 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician |
Synonymy List
| Year | Name and Author |
|---|---|
| 1899 | Cheirocrinidae Jaekel |
| 1945 | Cheirocrinidae Regnéll |
| 2002 | Cheirocrinidae Sumrall and Schumacher p. 848 |
| 2003 | Cheirocrinidae Broadhead and Sumrall p. 119 |
| 2016 | Cheirocrinidae Paul and Rozhnov p. 266 |
| 2019 | Cheirocrinidae Paul et al. |
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!
