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Actinodiscus ✝
Source Data |
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Rank | genus (PBDB) | ||||||||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Echinodermata : Cyclocystoidea : Cyclocystoididae : Actinodiscus | ||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Opinions (PBDB) |
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Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 2 | ||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 461 - 450 Ma Ordovician | ||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 456 - 446 Ma Late/Upper Ordovician | ||||||||||||||||||||||||||||||||||||
Environment | marine (based on Cyclocystoidea) | ||||||||||||||||||||||||||||||||||||
Motility | stationary (based on Cyclocystoidea) | ||||||||||||||||||||||||||||||||||||
Reproduction | dispersal=water,planktonic (based on Echinodermata) | ||||||||||||||||||||||||||||||||||||
Ontogeny | accretion,addition of parts (based on Echinodermata) | ||||||||||||||||||||||||||||||||||||
Taphonomy | high Mg calcite (based on Cyclocystoidea) | ||||||||||||||||||||||||||||||||||||
Primary Reference (PBDB) | A. B. Smith and C.R.C. Paul. 1982. Revision of the Class Cyclocystoidea (Echinodermata). Philosophical Transactions of the Royal Society of London, Series B 296:577-679 |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Actinodiscus wrighti ✝ species | listed (PBDB) | 1 | 456 Ma Late/Upper Ordovician | 456 Ma Late/Upper Ordovician |
Synonymy List
Year | Name and Author |
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1982 | Actinodiscus Smith and Paul |
References
Smith A. B., Paul C.R.C. (1982) Revision of the Class Cyclocystoidea (Echinodermata), Philosophical Transactions of the Royal Society of London, Series B 296, 577-679 |
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!