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Pentacystida ✝
| Source Data |
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| Rank | order (PBDB) | ||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Echinodermata : Edrioasteroidea : Pentacystida | ||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 6 | ||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 461 - 450 Ma Ordovician | ||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 450 - 444 Ma Paleozoic | ||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Echinodermata) | ||||||||||||||||||||||||||||||||||||
| Motility | stationary, attached, epibiont (based on Edrioasteroidea) | ||||||||||||||||||||||||||||||||||||
| Vision | limited (based on Edrioasteroidea) | ||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Edrioasteroidea) | ||||||||||||||||||||||||||||||||||||
| 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) | T. E. Guensburg and J. Sprinkle. 2009. Solving the mystery of crinoid ancestry: new fossil evidence of arm origin and development. Journal of Paleontology 83(3):350-364 | ||||||||||||||||||||||||||||||||||||
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Steganoblastidae ✝ family | listed (PBDB) | 12 | 461 Ma Middle Ordovician | 450 Ma Late/Upper Ordovician |
Synonymy List
| Year | Name and Author |
|---|---|
| 1918 | Pentacystida Jaeckel |
| 1982 | Pentacystida Sprinkle p. 307 |
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!
