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Varunidae
| Description | The Varunidae are a family of thoracotrematan crabs. The delimitation of this family, part of the taxonomically confusing Grapsoidea, is undergoing revision. For a long time, they were placed at the rank of subfamily in the Grapsidae, but they appear to be closest to Macropthalmus and the Mictyridae, which are usually placed in the Ocypodoidea. It may thus be better to merge the latter superfamily with the Grapsoidea, retaining the latter name as it is older. From Wikipedia article at https://en.wikipedia.org/wiki/Varunidae, 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,PBDB) | Life : Animalia : Arthropoda : Malacostraca : Decapoda : Varunidae | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Varunidae | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 38 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 23 (61%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 56.0 - 47.8 Ma Eocene | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Malacostraca) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Malacostraca) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Decapoda) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | chitin (based on Malacostraca) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | C. E. Schweitzer, R. M. Feldmann, and A. Garassino, H. Karasawa, and G. Schweigert. 2010. Systematic list of fossil decapod crustacean species. Crustaceana Monographs 10:1-222 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Name(s) | Brackvattenskrabbor, モクズガニ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Varunidae |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Asthenognathinae subfamily | listed (PBDB) | 2 | 20.4 Ma Miocene | 0 Ma Extant | |
| Cyclograpsinae subfamily | listed (PBDB) | 10 | 16.0 Ma Miocene | 0 Ma Extant | |
| Gaeticinae subfamily | listed (PBDB) | 0 Ma Extant | |||
| Thalassograpsinae subfamily | listed (PBDB) | 0 Ma Extant | |||
| Varuninae subfamily | listed (PBDB) | 12 | 56.0 Ma Paleocene | 0 Ma Extant | |
| Acmaeopleura genus | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
| Asthenognathus genus | accepted (GBIF) listed (PBDB) | 8 | 48.6 Ma Eocene | 5.33 Ma Miocene | |
| Austrohelice genus | accepted (GBIF) listed (PBDB) | 1 | 3.60 Ma Pliocene | 0 Ma Extant | |
| Brachynotus genus | accepted (GBIF) listed (PBDB) | 2 | 56.0 Ma Paleocene | 0 Ma Extant | |
| Brankocleistostoma genus | accepted (GBIF) | No associated record in PBDB | |||
| Chasmagnathus genus | accepted (GBIF) | No associated record in PBDB | |||
| Cyclograpsus genus | accepted (GBIF) listed (PBDB) | 3 | 0.01 Ma Pleistocene | 0 Ma Extant | |
| Cyrtograpsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Eriocheir genus | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
| Gaetice genus | accepted (GBIF) | No associated record in PBDB | |||
| Gopkittisak genus | accepted (GBIF) | No associated record in PBDB | |||
| Grapsodius genus | accepted (GBIF) | No associated record in PBDB | |||
| Helicana genus | accepted (GBIF) | No associated record in PBDB | |||
| Helice genus | accepted (GBIF) | No associated record in PBDB | |||
| Helograpsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Hemigrapsus genus | accepted (GBIF) listed (PBDB) | 8 | 5.33 Ma Miocene | 0 Ma Extant | |
| Metaplax genus | accepted (GBIF) | No associated record in PBDB | |||
| Neoeriocheir genus | accepted (GBIF) | No associated record in PBDB | |||
| Neohelice genus | accepted (GBIF) | No associated record in PBDB | |||
| Noarograpsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Orcovita genus | accepted (GBIF) | No associated record in PBDB | |||
| Otognathon genus | accepted (GBIF) | No associated record in PBDB | |||
| Paragrapsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Parahelice genus | accepted (GBIF) | No associated record in PBDB | |||
| Parapyxidognathus genus | accepted (GBIF) | No associated record in PBDB | |||
| Platyeriocheir genus | accepted (GBIF) | No associated record in PBDB | |||
| Proexotelson genus | accepted (GBIF) | No associated record in PBDB | |||
| Pseudogaetice genus | accepted (GBIF) | No associated record in PBDB | |||
| Pseudograpsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Pseudohelice genus | accepted (GBIF) | No associated record in PBDB | |||
| Pseudopinnixa genus | accepted (GBIF) | No associated record in PBDB | |||
| Ptychognathus genus | accepted (GBIF) | No associated record in PBDB | |||
| Pyxidognathus genus | accepted (GBIF) | No associated record in PBDB | |||
| Scutumara genus | accepted (GBIF) | No associated record in PBDB | |||
| Sestrostoma genus | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
| Tetragrapsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Thalassograpsus genus | accepted (GBIF) | No associated record in PBDB | |||
| Utica genus | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
| Varuna genus | accepted (GBIF) listed (PBDB) | 2 | 33.9 Ma Oligocene | 0 Ma Extant | |
Synonymy List
| Year | Name and Author |
|---|---|
| 1853 | Varunidae Milne-Edwards |
| 2010 | Varunidae Schweitzer 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!
