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Gymnitidae ✝
| Description | Gymnitidae is a family of Lower to Middle Triassic ammonite cephalopods with evolute, discoidal shells. From Wikipedia article at https://en.wikipedia.org/wiki/Gymnitidae, 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 : Mollusca : Cephalopoda : Ammonoidea : Gymnitidae | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Ceratitida : Gymnitidae | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Gymnitidae | |||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 89 | |||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 247 - 242 Ma Triassic | |||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 209 - 201 Ma Mesozoic | |||||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Ceratitida) | |||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Cephalopoda) | |||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Ceratitida) | |||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite (based on Ceratitida) | |||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | E. T. Tozer. 1981. Triassic Ammonoidea: Classification, evolution and relationship with Permian and Jurassic Forms. The Ammonoidea: The evolution classification, mode of life and geological usefulness of a major fossil group | |||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Gymnitidae |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Gymnitinae ✝ subfamily | listed (PBDB) | 33 | 247 Ma Early/Lower Triassic | 242 Ma Middle Triassic | |
| Japonitinae ✝ subfamily | listed (PBDB) | 10 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Placitinae ✝ subfamily | listed (PBDB) | 64 | 237 Ma Middle Triassic | 209 Ma Late/Upper Triassic | |
| Anagymnites ✝ genus | accepted (GBIF) listed (PBDB) | 15 | 247 Ma Early/Lower Triassic | 242 Ma Middle Triassic | |
| Buddhaites ✝ genus | accepted (GBIF) listed (PBDB) | 13 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Bukowskiites ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Caucasites ✝ genus | accepted (GBIF) listed (PBDB) | 10 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Constrigymnites ✝ genus | accepted (GBIF) listed (PBDB) | 7 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Costigymnites ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Discogymnites ✝ genus | accepted (GBIF) listed (PBDB) | 5 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Epigymnites ✝ genus | accepted (GBIF) listed (PBDB) | 17 | 247 Ma Early/Lower Triassic | 242 Ma Middle Triassic | |
| Gymnites ✝ genus | accepted (GBIF) listed (PBDB) | 123 | 247 Ma Early/Lower Triassic | 235 Ma Late/Upper Triassic | |
| Japonites ✝ genus | accepted (GBIF) listed (PBDB) | 29 | 247 Ma Early/Lower Triassic | 242 Ma Middle Triassic | |
| Kiparisovia ✝ genus | doubtful (GBIF) listed (PBDB) | 1 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Paragymnites ✝ genus | accepted (GBIF) listed (PBDB) | 8 | 228 Ma Late/Upper Triassic | 212 Ma Late/Upper Triassic | |
| Parapinacoceras ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Paraplacites ✝ genus | doubtful (GBIF) listed (PBDB) | ||||
| Phyllytoceras ✝ genus | accepted (GBIF) listed (PBDB) | 2 | 232 Ma Late/Upper Triassic | 209 Ma Late/Upper Triassic | |
| Placites ✝ genus | accepted (GBIF) listed (PBDB) | 56 | 237 Ma Middle Triassic | 209 Ma Late/Upper Triassic | |
| Protoplatytes ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 209 Ma Late/Upper Triassic | 209 Ma Late/Upper Triassic | |
| Tropigymnites ✝ genus | accepted (GBIF) listed (PBDB) | 9 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Xiphogymnites ✝ genus | accepted (GBIF) listed (PBDB) |
Synonymy List
| Year | Name and Author |
|---|---|
| 1895 | Gymnitidae Waagen |
| 1971 | Gymnitidae Astakhova p. 82 |
| 1981 | Gymnitidae Tozer |
| 1994 | Gymnitidae Tozer p. 125 |
| 2018 | Gymnitidae Vörös p. 135 |
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!
