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Rajidae
| Description | Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. More than 150 species have been described, in 17 genera. Softnose skates and pygmy skates were previously treated as subfamilies of Rajidae (Arhynchobatinae and Gurgesiellinae), but are now considered as distinct families. Alternatively, the name "skate" is used to refer to the entire order of Rajiformes (families Anacanthobatidae, Arhynchobatidae, Gurgesiellidae and Rajidae). From Wikipedia article at https://en.wikipedia.org/wiki/Rajidae, 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 : Chordata : Elasmobranchii : Rajiformes : Rajidae | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Chordata : Chondrichthyes : Rajiformes : Rajidae | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Common Name | skate | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Scientific Name | Rajidae | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 41 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 4 (9.8%) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 209 - 201 Ma Mesozoic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Vertebrata) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Rajiformes) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Rajiformes) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | phosphatic (based on Vertebrata) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | C. R. Eastman. 1904. Systematic Paleontology: Pisces. Maryland Geological Survey Miocene, Text | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Name(s) | Rays, Skates, Raies, Rayas, Roggen, Egentliga Rockor, Skatefamilien, ガンギエイ, Hardnose Skates, Skate, äggrockor | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Rajidae |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Actinobatis ✝ genus | listed (PBDB) | ||||
| Amblyraja ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Batis ✝ genus | listed (PBDB) | ||||
| Beringraja genus | accepted (GBIF) listed (PBDB) | 9 | 7.25 Ma Miocene | 0 Ma Extant | |
| Breviraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Cephaleutherus ✝ genus | listed (PBDB) | ||||
| Cruriraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Cyclobatis genus | accepted (GBIF) | No associated record in PBDB | |||
| Dactylobatus ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Dasybatus ✝ genus | listed (PBDB) | ||||
| Dentiraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Dipturus ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 13.7 Ma Miocene | 13.7 Ma Miocene | |
| Fenestraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Gurgesiella genus | accepted (GBIF) | No associated record in PBDB | |||
| Hieroptera ✝ genus | listed (PBDB) | ||||
| Hongeo genus | accepted (GBIF) | No associated record in PBDB | |||
| Laeviraja ✝ genus | listed (PBDB) | ||||
| Leucoraja ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Malacoraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Malacorhina ✝ genus | listed (PBDB) | ||||
| Neoraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Okamejei genus | accepted (GBIF) | No associated record in PBDB | |||
| Orbiraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Pararaja ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Platopterus ✝ genus | listed (PBDB) | ||||
| Propterygia ✝ genus | listed (PBDB) | ||||
| Psammobatis genus | listed (PBDB) | ||||
| Raja genus | accepted (GBIF) listed (PBDB) | 57 | 209 Ma Late/Upper Triassic | 0 Ma Extant | |
| Rajella genus | accepted (GBIF) | No associated record in PBDB | |||
| Rostroraja genus | accepted (GBIF) | No associated record in PBDB | |||
| Sympterygia genus | listed (PBDB) | ||||
| Uraptera ✝ genus | listed (PBDB) | ||||
| Zearaja genus | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
|---|---|
| 1816 | Rajidae Blainville |
| 1889 | Rajidae Woodward p. 84 |
| 1902 | Rajidae Hay p. 315 |
| 1904 | Rajidae Eastman p. 71 |
| 1942 | Rajidae Leriche p. 12 |
| 1963 | Rajidae Jordan p. 603 |
| 1966 | Rajidae Cassier p. 90 |
| 1968 | Rajidae Jonet p. 247 |
| Year | Name and Author |
|---|---|
| 1980 | Rajidae Capetta p. 202 |
| 1981 | Rajidae Thurmond and Jones p. 72 |
| 1983 | Rajidae Bendix-Almgreen p. 2 |
| 1987 | Rajidae Cappetta p. 143 |
| 2001 | Rajidae Purdy et al. p. 89 |
| 2006 | Rajidae Underwood p. 234 |
| 2009 | Rajidae Cicimurri and Knight p. 635 |
| 2018 | Rajidae Kent p. 124 |
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!
