BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems
Atrypa β
| Description | Atrypa is a genus of brachiopod with shells round to short egg-shaped, covered with many fine radial ridges (or costae), that split further out and growthlines perpendicular to the costae and 2-3 times wider spaced. The pedunculate valve is a little convex, but tends to level out or even become slightly concave toward the anterior margin (that is: opposite hinge and pedicle). The brachial valve is highly convex. There is no interarea (that is a flat area bordering the hinge line approximately perpendicular with the rest of the valve) in either valve. Atrypa was a cosmopolitan and occurred from the late Lower Silurian (Telychian) to the early Upper Devonian (Frasnian). Other sources expand the range from the Late Ordovician to Carboniferous, approximately from 449 to 336 Ma. A proposed new species, A. harrisi, was found in the trilobite-rich Floresta Formation in BoyacΓ‘, Colombia. From Wikipedia article at https://en.wikipedia.org/wiki/Atrypa, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Source Data |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rank | genus | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Atrypa | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Scientific Name | Atrypa Dalman, 1828 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name Published In | Dalman, Johan W. 1828. Uppstallingen och Beskrifning af de i Sverige funne Terebratulider. Kungliga Svenska Vetenskapsakademiens Handlingar, Series 3 15: 85β155. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 15 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 470 - 456 Ma Ordovician | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 339 - 336 Ma Carboniferous | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | stationary (based on Atrypida) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Rhynchonellata) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Atrypida) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecospace Comments | BODY SIZE: Data from Williams et al (2002). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite (based on Brachiopoda) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Atrypa |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Atrypa (Gotatrypa) β subgenus | listed (PBDB) | 56 | 443 Ma Silurian | 409 Ma Early/Lower Devonian | |
| Atrypa (Planatrypa) β subgenus | listed (PBDB) | 9 | 393 Ma Early/Lower Devonian | 388 Ma Middle Devonian | |
| Atrypa altilis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa arctostriata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa biconvexa species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa blodgetti species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa boloniensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa callawayensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa calvini species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa comis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa coralifera species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa crassicostis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa dormitzeri β species | accepted (GBIF) listed (PBDB) | 1 | 431 Ma Silurian | 431 Ma Silurian | |
| Atrypa dorsata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa dubia species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa ellipsoidea species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa expansa species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa filosa species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa gigantea species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa hedei β species | accepted (GBIF) listed (PBDB) | 13 | 443 Ma Silurian | 433 Ma Silurian | |
| Atrypa hystrix species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa independensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa inornata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa iowensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa jukesii β species | accepted (GBIF) listed (PBDB) | 1 | 339 Ma Carboniferous | 339 Ma Carboniferous | |
| Atrypa kobar species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa laevis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa laticorrugata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa lineata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa linguifera species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa mesacostale species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa missouriensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa nevadana β species | accepted (GBIF) listed (PBDB) | 12 | 411 Ma Early/Lower Devonian | 408 Ma Early/Lower Devonian | |
| Atrypa oblonga species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa oklahomensis β species | accepted (GBIF) listed (PBDB) | 7 | 423 Ma Silurian | 419 Ma Early/Lower Devonian | |
| Atrypa oneidensis β species | accepted (GBIF) listed (PBDB) | 1 | 383 Ma Late/Upper Devonian | 383 Ma Late/Upper Devonian | |
| Atrypa owenensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa palmata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa petasa species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa plicifera species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa pronis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa putilla β species | listed (PBDB) | 3 | 450 Ma Late/Upper Ordovician | 450 Ma Late/Upper Ordovician | |
| Atrypa reticularis β species | accepted (GBIF) listed (PBDB) | 443 | 443 Ma Silurian | 383 Ma Late/Upper Devonian | |
| Atrypa sinuata species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa snyderensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa tennesseensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa thola species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa tirocinia species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa traversensis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa tumida species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa variabilis species | accepted (GBIF) | No associated record in PBDB | |||
| Atrypa waterlooensis species | accepted (GBIF) | No associated record in PBDB | |||
Obsolete Names
| Name | Source | Taxon Rank | Taxonomy |
|---|---|---|---|
| Cleiothyris Phillips, 1841 | GBIF | genus | Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Cleiothyris |
| Mikrothyris Quenstedt, 1868 | GBIF | genus | Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Mikrothyris |
Synonymy List
| Year | Name and Author |
|---|---|
| 1828 | Atrypa Dalman |
| 1952 | Atrypa Kirk and Amsden |
| 1974 | Atrypa Bassett and Cocks |
| 1982 | Atrypa Jones p. 1393 |
| 1997 | Atrypa Jin and Chatterton |
| 2002 | Atrypa Sepkoski, Jr. |
| 2002 | Atrypa Williams et al. p. 1389 |
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!
