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Heterastridiidae
Description | Heterastridium is an extinct genus of marine hydrozoan. It is the only accepted genus in the monotypic family Heterastridiidae. The fossils date from the Upper Triassic. They are mostly discoid or spherical and some forms found in the Karakorum mountains are called Karakorum stones. They vary in diameter from 1 to 35 cm and appear to follow Cope's rule for the prehistoric climate. From Wikipedia article at https://en.wikipedia.org/wiki/Heterastridiidae, 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 : Cnidaria : Hydrozoa : Anthoathecata : Heterastridiidae | |||||||||||||||||||||||||||
Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||
Classification (GBIF) |
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Scientific Name | Heterastridiidae | |||||||||||||||||||||||||||
Wikipedia | https://en.wikipedia.org/wiki/Heterastridiidae |
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Heterastridium ✝ genus | accepted (GBIF) listed (PBDB) | 57 | 269 Ma Permian | 209 Ma Late/Upper Triassic |
Obsolete Names
Name | Source | Taxon Rank | Taxonomy |
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Heterastrididae | GBIF | family | Animalia : Cnidaria : Hydrozoa : Anthoathecata : Heterastrididae |
References
Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - via The Interim Register of Marine and Nonmarine Genera |
refer synonym source - via The Interim Register of Marine and Nonmarine Genera |
Manual inspection (AJR) - via The Interim Register of Marine and Nonmarine Genera |
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!