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Arctitreta
Taxonomy
Arctitreta was named by Whitfield (1908). Its type is Arctitreta pearyi.
It was assigned to Streptorhynchinae by Williams et al. (2000); and to Thecideida by Sepkoski (2002).
It was assigned to Streptorhynchinae by Williams et al. (2000); and to Thecideida by Sepkoski (2002).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1908 | Arctitreta Whitfield p. 57 |
| 1963 | Grumantia Ustritsky |
| 2000 | Arctitreta Williams et al. p. 667 |
| 2002 | Arctireta Sepkoski |
| 2002 | Grumantia Sepkoski |
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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. †Arctitreta Whitfield 1908
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†Arctitreta bapensis Waterhouse and Ranga Rao 1989
†Arctitreta bioni Reed 1932
†Arctitreta costellata Clarke 1990
†Arctitreta crassimurus Thomas 1958
†Arctitreta intercalata Waterhouse and Chen 2007
†Arctitreta kempei Andersson 1914
†Arctitreta macrocardinalis Toula 1875
†Arctitreta pearyi Whitfield 1908
†Arctitreta peelensis Shi and Waterhouse 1996
†Arctitreta pelicanensis Fletcher et al. 1952
†Arctitreta percostata Waterhouse 1982
†Arctitreta plicatilis Hosking 1932
†Arctitreta triangularis Wiman 1914
Invalid names: Grumantia Ustritsky 1963 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 21.8 | 15.0 | 38.1 | 20.0 | 8.14 | |
| valve height | 2 | 9.63 | 7.80 | 11.9 | 9.85 | 2.90 |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Visean to the top of the Changhsingian or 346.70000 to 252.17000 Ma
Collections (123 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Visean | Iran | Streptorhynchus bioni (90015) | |
| Late/Upper Pennsylvanian | Svalbard and Jan Mayen | Streptorhynchus kempei (211887) | |
| Asselian | Afghanistan | Streptorhynchus bioni (88265) | |
| Asselian | Thailand | A. percostata (40150) | |
| Asselian | Australia (Tasmania) | Grumantia costellata (105477) | |
| Permian | Canada (Nunavut) | A. pearyi (95252) | |
| Sakmarian | India | A. bapensis (39932) | |
| Sakmarian | India (Kashmir) | Streptorhynchus bioni (86545) | |
| Sakmarian | Malaysia | A. percostata (221708) A. sp. (221709) | |
| Sakmarian | Indonesia | A. sp. (83152) | |
| Sakmarian | Australia (Western Australia) | A. crassimurus (95199 95208) A. sp. (88214) Streptorhynchus plicatilis (84508 84566 85221 119111 119112 119113 119114 119115 119116 119117) | |
| Sakmarian | Australia (Tasmania) | Grumantia costellata (105479 105481 105482 105483 105485 105486 105487 105490 105494) | |
| Sakmarian | Canada (Yukon) | A. peelensis (117677 117683 117718) | |
| Sakmarian | Australia (New South Wales) | A. sp. (95714) | |
| Sakmarian | Oman | A. bioni (101079 101080 101084 101085 111043 111044 111046 121843 121847 121851) | |
| Artinskian | China (Yunnan) | A. sp. (117762) | |
| Artinskian | Australia (Queensland) | A. sp. (66237 66243 66245 66246 66247) A. sp. A (66210 120345) | |
| Artinskian | Australia (Western Australia) | Streptorhynchus crassimurus (84851) | |
| Artinskian | Mongolia | A. kempei (116263 116276) | |
| Artinskian | Svalbard and Jan Mayen | Streptorhynchus macrocardinalis, Streptorhynchus kempei, Streptorhynchus triangularis (212503) | |
| Kungurian | Russian Federation | A. kempei (110027) A. macrocardinalis (81152 109987) A. macrocardinalis, A. kempei, A. triangularis (110007) A. macrocardinalis, A. triangularis (110111) | |
| Kungurian | Mongolia | A. kempei (116249 116265 116267 116270 116271 116274) | |
| Kungurian | Russian Federation (Nenets Autonomous Okrug) | Streptorhynchus kempei (126201 126202) Streptorhynchus macrocardinalis (126191) | |
| Kungurian | Svalbard and Jan Mayen | A. kempei (120921) | |
| Kungurian | Canada (Nunavut) | A. kempei (118084) | |
| Roadian | Canada (Nunavut) | A. sp. (120889) Streptorhynchus kempei, Streptorhynchus triangularis (11089) | |
| Wordian | Svalbard and Jan Mayen (Barentsøya) | Grumantia kempei (212888) | |
| Wordian | USA (Alaska) | A. kempei (102526 102597 102598) | |
| Wordian | Canada (Northwest Territories) | A. sp. (121744) | |
| Wordian | Russian Federation | Grumantia kempei (119359 119361) | |
| Wordian | New Zealand (Southland) | Grumantia sp., Streptorhynchus pelicanensis (41767) | |
| Wordian | Canada (Yukon) | A. sp. (120484) | |
| Capitanian | New Zealand (Southland) | Grumantia sp. (41778) | |
| Wuchiapingian | Nepal | A. sp. (43128) | |
| Wuchiapingian | Greenland | Streptorhynchus kempei (86159 86163 86532 88448 88497 96809 96810 97014 107367 107385 107386 107439 107448 107465 107470 107526 107530 107551) | |
| Wuchiapingian | Australia (Queensland) | A. pelicanensis (120346) A. sp. (103021) A. sp. B (98100 101570 120350 120536) Orthotetes crenistria (123231 123232) Streptorhynchus pelicanensis (103028 123229 123230) | |
| Wuchiapingian | Svalbard and Jan Mayen | Streptorhynchus kempei (117553) | |
| Changhsingian | Nepal | A. intercalata (62443 62444 62445 62447 120387) |