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Arctoptychites
Taxonomy
Arctoptychites was named by Archipov et al. (1974) [Sepkoski's age data: Tr Ladi-l Sepkoski's reference number: 302]. It is not extant.
It was assigned to Ptychitidae by Tozer (1981), Tozer (1994); and to Ceratitida by Sepkoski (2002).
It was assigned to Ptychitidae by Tozer (1981), Tozer (1994); and to Ceratitida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
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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. †Arctoptychites Archipov et al. 1974
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†Arctoptychites euglyphus Mojsisovics 1886
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Invalid names: Ptychites latifrons Mojsisovics 1886 [synonym], Ptychites lundgreni Mojsisovics 1886 [synonym], Ptychites nordenskjoldi Mojsisovics 1886 [synonym]
†Arctoptychites kruzini Bychkov et al. 1976
†Arctoptychites lingulatus Tozer 1994
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 24.7 | 12.5 | 40.0 | 27.5 | 9.90 | |
| shell diameter | 8 | 46.3 | 24.0 | 74.0 | 47.5 | 17.9 | |
| shell inflation | 8 | 9.66 | 6.00 | 14.0 | 9.75 | 2.53 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Anisian to the top of the Longobardian or 246.70000 to 237.00000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | Russian Federation | A. omolojensis (124641 124656) | |
| Anisian | Svalbard and Jan Mayen | Ptychites euglyphus (212544 212548 212562) Ptychites lundgreni (212141 212560) Ptychites nordenskjoldi (212559) | |
| Fassanian | Russian Federation | A. kruzini (214776 214777 214779) | |
| Fassanian | Svalbard and Jan Mayen (Spitsbergen) | Aristoptychites euglyphus (211378) | |
| Fassanian | Svalbard and Jan Mayen | Aristoptychites euglyphus (144475 144476) | |
| Ladinian | Canada (British Columbia) | A. lingulatus (138640 138643) | |
| Longobardian | Russian Federation | A. kruzini (112632) A. kruzini, A. euglyphus (111973) |