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Gyrodus
Taxonomy
Gyrodus was named by Agassiz (1833) [Sepkoski's age data: J Bajo K u Sepkoski's reference number: 452].
It was assigned to Pycnodontidae by Cope (1878) and Woodward (1895); to Pycnodontes by Arambourg and Joleaud (1943) and Gardiner (1960); to Pycnodontiformes by Sepkoski (2002) and Arratia (2015); and to Gyrodontidae by Cantalice et al. (2019).
It was assigned to Pycnodontidae by Cope (1878) and Woodward (1895); to Pycnodontes by Arambourg and Joleaud (1943) and Gardiner (1960); to Pycnodontiformes by Sepkoski (2002) and Arratia (2015); and to Gyrodontidae by Cantalice et al. (2019).
Species
G. analis, G. angustus, G. circularis, G. conicus, G. cordillera, G. cretaceus, G. cuvieri, G. frontatus, G. jurassicus, G. laevior, G. macropterus, G. macropththalmus, G. mammillaris, G. mantellii, G. milium, G. minor, G. muensteri, G. perlatus, G. platurus, G. punctatissimus, G. punctatus, G. radiatus, G. rhomboidalis, G. rugosus, G. rugulosus, G. runcinatus, G. trigonus, G. umbilicus
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1833 | Gyrodus Agassiz p. 16 |
| 1878 | Gyrodus Cope p. 298 |
| 1895 | Gyrodus Woodward p. 233 |
| 1943 | Gyrodus Arambourg and Joleaud p. 38 |
| 1960 | Gyrodus Gardiner p. 367 |
| 2002 | Gyrodus Sepkoski |
| 2015 | Gyrodus Arratia p. 44 |
| 2019 | Gyrodus Cantalice et al. p. 432 |
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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. †Gyrodus Agassiz 1833
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†Gyrodus analis Agassiz 1834
†Gyrodus angustus Agassiz 1837
†Gyrodus circularis Agassiz 1834
†Gyrodus conicus Dixon 1850
†Gyrodus cordillera Martill et al. 1998
†Gyrodus cretaceus Agassiz 1839
†Gyrodus cuvieri Agassiz 1833
†Gyrodus frontatus Agassiz 1834
†Gyrodus jurassicus Agassiz 1833
†Gyrodus laevior Agassiz 1839
†Gyrodus macropterus Agassiz 1834
†Gyrodus macropththalmus Agassiz 1834
†Gyrodus mammillaris Agassiz 1833
†Gyrodus mantellii Agassiz 1839
†Gyrodus milium Henry 1876
†Gyrodus minor Agassiz 1833
†Gyrodus muensteri Agassiz 1839
†Gyrodus perlatus Agassiz 1843
†Gyrodus platurus Agassiz 1833
†Gyrodus punctatissimus Agassiz 1834
†Gyrodus punctatus Agassiz 1839
†Gyrodus radiatus Agassiz 1839
†Gyrodus rhomboidalis Agassiz 1833
†Gyrodus rugosus Agassiz 1839
†Gyrodus rugulosus Agassiz 1834
†Gyrodus runcinatus Agassiz 1833
†Gyrodus trigonus Agassiz 1839
†Gyrodus umbilicus Agassiz 1833
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Rhaetian to the top of the Middle Cenomanian or 208.50000 to 93.50000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian | France (Franche-Comté) | G. milium (149410) | |
| Callovian - Oxfordian | Chile (Antofagasta) | Mesturus cordillera (55686) | |
| Oxfordian | Chile (Antofagasta) | Mesturus cordillera (134865) | |
| Oxfordian | Chile | G. sp. (215835) | |
| Oxfordian | United Kingdom (England) | G. sp. (100669) | |
| Late/Upper Oxfordian | Spain | G. hexagonus (151899) | |
| Late/Upper Kimmeridgian | Germany (Eastern Barvaria) | G. hexagonus (187436) | |
| Late/Upper Kimmeridgian | Germany (Baden-Württemberg) | G. circularis (154138) | |
| Late/Upper Kimmeridgian | France (Aquitaine) | G. sp., G. cuvieri, G. n. sp. (94532) | |
| Late/Upper Kimmeridgian | Germany (Bayern) | G. sp. (59175) | |
| Early/Lower Tithonian | France (Provence-Alpes-Côte d'Azur) | G. sp. (35262) | |
| Early/Lower Berriasian - Middle Berriasian | France (Poitou-Charentes) | G. sp. (61930) | |
| Valanginian - Hauterivian | Chile (Ultima Esperanza) | G. sp. (164882) | |
| Hauterivian - Aptian | Tunisia (Tataouine) | Pycnodontiformes indet. (116296) | |
| Early/Lower Aptian | United Kingdom (England) | G. atherfieldensis (235313) | |
| Late/Upper Albian | United Kingdom (England) | G. sp. (94253) | |
| Early/Lower Cenomanian | Egypt (Matruh) | G. sp. (84550) | |
| Middle Cenomanian | Canada (Saskatchewan) | G. cretaceus (22731) |