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Atrypa
Taxonomy
Atrypa was named by Dalman (1828). Its type is Anomia reticularis.
It was assigned to Spiriferacea by Kirk and Amsden (1952); to Atrypidae by Jin and Chatterton (1997); to Atrypinae by Bassett and Cocks (1974), Jones (1982) and Williams et al. (2002); and to Atrypida by Sepkoski (2002).
It was assigned to Spiriferacea by Kirk and Amsden (1952); to Atrypidae by Jin and Chatterton (1997); to Atrypinae by Bassett and Cocks (1974), Jones (1982) and Williams et al. (2002); and to Atrypida by Sepkoski (2002).
Species
Species lacking formal opinion data
A. aspiformis, A. audax, A. auriculata, A. bachatica, A. bolastensis, A. bremerensis, A. desquamata, A. dzwinogrodensis, A. elegans, A. exquisita, A. gabrielsi, A. granulifera, A. grossheimi, A. harrisi, A. incrustata, A. lazutkini, A. manitobensis, A. nieczlawiensis, A. orbicularis, A. ordinaria, A. parva, A. penelopeae, A. perfimbriata, A. perflabellata, A. planosulcata, A. reticularus, A. snakensis, A. squamifera, A. tajnensis, A. tirocinia, A. turensis, A. velikaya, A. verneuiliana, A. vijaica, A. virilicosta
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 |
| 2002 | Atrypa Williams et al. p. 1389 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Atrypa Dalman 1828
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Subg. †Atrypa (Gotatrypa) Struve 1966
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†Atrypa (Gotatrypa) blodgetti Zhang 1989
†Atrypa (Gotatrypa) variabilis Johnson et al. 1976
Subg. †Atrypa (Planatrypa)
†Atrypa boloniensis d'Orbigny 1850
†Atrypa concinna Hall 1843
†Atrypa dormitzeri Barrande 1879
†Atrypa hedei Struve 1966
†Atrypa hedei americensis Sheehan 1982
†Atrypa jukesii M'Coy 1847
†Atrypa missouriensis Miller 1892
†Atrypa nevadana Merriam 1940
†Atrypa oklahomensis Girty 1899
†Atrypa oneidensis Beus 1965
†Atrypa putilla Hall and Clarke 1894
†Atrypa reticularis Linnaeus 1758
†Atrypa reticularis alata Hisinger 1831
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 3 | 5.92 | 4.59 | 7.41 | 6.09 | 1.41 |
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Collections (1253 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician - Late/Upper Ordovician | Canada (Nunavut) | A. sp. (24229) | |
| Caradoc | China (XinJiang) | A. sp. (20789) | |
| Zahorany - Late/Upper Ordovician | Czech Republic | A. sp. (3865) | |
| Edenian | Canada (Nunavut) | A. sp. (24225) | |
| Kralodvorian - Rawtheyan | Czech Republic | A. sp. (3878) | |
| Richmondian | Canada (Nunavut) | A. phoca (24187) | |
| Richmondian | USA (Idaho) | Zygospira putilla (183358) | |
| Gamachian | USA (Illinois) | A. putilla (173287 173289) | |
| Porkuni | Sweden (Östergötland) | A. canaliculata (186269) | |
| Hirnantian - Rhuddanian | Russian Federation (Siberia) | A. lindstromi (205661) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Middle Frasnian | France (Alsace) | A. squamifera (65764 65766) | |
| Middle Frasnian | China (Guangxi) | A. sp. (13006) | |
| Late/Upper Givetian | Tajikistan | A. sp. (184356) | |
| Late/Upper Givetian | Germany (Nordrhein-Westfalen) | A. reticularis (75584) | |
| Late/Upper Frasnian | Russian Federation (Novosibirskaya Oblast) | A. posturalica (84381) | |
| Late/Upper Frasnian | Russian Federation (Kemerovskaya Oblast) | A. posturalica, A. planosulcata (84380) | |
| Late/Upper Frasnian | USA (Maryland, West Virginia, Virginia) | A. sp. (5927) | |
| Early/Lower Mississippian | USA (California) | A. sp. (226746) | |
| Carboniferous | USA (Montana) | A. sp. (12771) | |
| Asbian | Australia (New South Wales) | A. jukesii (133349) | |