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Polycopidae
| Description | Polycopidae is a family of marine ostracods. Its members are related to animals in the suborder Halocypridina, but are sufficiently distinct to be placed in their own sub-order, Cladocopina. There is speculation that a separate order may be warranted. The genera in the family differ from the other suborder, Halocypridina, in several features: the central adductor muscle scars are in a triangular (3 scars) or half-rosette (15 scars) pattern, they lack sixth and seventh limbs, and the maxilla (=fourth limb) has both an exopod and endopod (the maxilla in the Halocypridina lacks an exopod). From Wikipedia article at https://en.wikipedia.org/wiki/Polycopidae, 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 : Arthropoda : Ostracoda : Halocyprida : Polycopidae | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Arthropoda : Ostracoda : Myodocopida : Polycopidae | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Polycopidae | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 21 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 4 (19%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 318 - 307 Ma Carboniferous | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | hypersaline,marine,brackish,freshwater (based on Ostracoda) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Ostracoda) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | limited (based on Myodocopida) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder, detritivore (based on Myodocopida) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite (based on Ostracoda) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | A. H. Yuan and S. Crasquin-Soleau. 2007. Systematic Descriptions, in Latest Permian deep-water ostracods from southwestern Guangxi, south China. Journal of Micropalaeontology 26:169-191 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Polycopidae |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Polycopinae subfamily | listed (PBDB) | 0 Ma Extant | |||
| Archypolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Axelheibergella genus | accepted (GBIF) | No associated record in PBDB | |||
| Discoidella ✝ genus | accepted (GBIF) listed (PBDB) | 29 | 318 Ma Carboniferous | 113 Ma Early/Lower Cretaceous | |
| Eupolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Hyphalocope genus | accepted (GBIF) | No associated record in PBDB | |||
| Metapolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Micropolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Nodopolycope ✝ genus | accepted (GBIF) listed (PBDB) | 2 | 260 Ma Permian | 260 Ma Permian | |
| Orthopolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Parapolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Parapolycopissa genus | accepted (GBIF) | No associated record in PBDB | |||
| Permopolycope ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 260 Ma Permian | 260 Ma Permian | |
| Polycope genus | accepted (GBIF) listed (PBDB) | 286 | 279 Ma Permian | 0 Ma Extant | |
| Polycopetta genus | accepted (GBIF) | No associated record in PBDB | |||
| Polycopiella genus | accepted (GBIF) | No associated record in PBDB | |||
| Polycopinoidea genus | accepted (GBIF) | No associated record in PBDB | |||
| Polycopissa genus | accepted (GBIF) | No associated record in PBDB | |||
| Polycopsis genus | accepted (GBIF) listed (PBDB) | 2 | 247 Ma Early/Lower Triassic | 0 Ma Extant | |
| Pontopolycope genus | accepted (GBIF) | No associated record in PBDB | |||
| Pseudopolycope genus | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
|---|---|
| 1866 | Polycopidae Sars |
| 1971 | Polycopidae Hazel and Holden p. 9 |
| 2007 | Polycopidae Yuan and Crasquin-Soleau p. 185 |
| 2013 | Polycopidae Sebe et al. p. 513 |
| 2017 | Polycopidae Forel |
| 2018 | Polycopidae Tanaka p. 26 |
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!
