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Ptyctodontiformes
Taxonomy
Ptyctodontiformes is an order.
It was synonymized subjectively with Ptyctodontida by Grande and Eastman (1986).
It was assigned to Placodermi by Long (2011), Nelson et al. (2016); and to Antiarchi by van der Laan (2019).
It was synonymized subjectively with Ptyctodontida by Grande and Eastman (1986).
It was assigned to Placodermi by Long (2011), Nelson et al. (2016); and to Antiarchi by van der Laan (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Ptyctodontiformes Long p. 242 |
| 2016 | Ptyctodontiformes Nelson et al. p. 39 |
| 2019 | Ptyctodontiformes van der Laan p. 29 |
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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.
Or. †Ptyctodontiformes
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Fm. †Ptyctodontidae Woodward 1891
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G. †Acmoniodus Hussakof and Bryant 1920
G. †Aulacosteus Eichwald 1846
G. †Chelyophorus Agassiz 1845
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†Chelyophorus griffithii M'Coy 1848
†Chelyophorus pskovensis Obruchev 1947
†Chelyophorus verneuili Agassiz 1844
G. †Eczematolepis Miller 1892
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†Eczematolepis fragilis Newberry 1857
†Eczematolepis pustulosus Newberry 1875
†Eczematolepis telleri Eastman 1898
Invalid names: Acantholepis Newberry 1875 [replaced]
G. †Palaeomylus Woodward 1891
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†Palaeomylus crassus Newberry 1873
†Palaeomylus frangens Newberry 1878
†Palaeomylus greenei Newberry 1889
†Palaeomylus hussakofi Bryant 1935
†Palaeomylus lunaeformis Hussakof and Bryant 1919
†Palaeomylus minor Bryant 1935
†Palaeomylus predator Eastman 1898
G. †Ptyctodus Pander 1858
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†Ptyctodus bradyi Hussakof 1942
†Ptyctodus calceolus Newberry and Worthen 1866
†Ptyctodus compressus Eastman 1898
†Ptyctodus czarnockii Gorizdro-Kulczykka 1934
†Ptyctodus eastmani Weller 1906
†Ptyctodus ferox Eastman 1898
†Ptyctodus howlandi Hussakof and Bryant 1919
†Ptyctodus kielcensis Gorizdro-Kulczykka 1934
†Ptyctodus major Rohon 1895
†Ptyctodus molaris Eastman 1898
†Ptyctodus obliquus Pander 1858
†Ptyctodus panderi Eastman 1898
†Ptyctodus punctatus Eastman 1898
†Ptyctodus reimanni Carter 1942
†Ptyctodus sibericus Tolmachoff 1915
G. †Ramphodus Jaekel 1903
G. †Rhynchodus Newberry 1873
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†Rhynchodus excavatus Newberry 1877
†Rhynchodus eximius Jaekel 1919
†Rhynchodus major Eastman 1898
†Rhynchodus marginalis Gorizdro-Kulczykka 1934
†Rhynchodus occidentalis Newberry 1878
†Rhynchodus ornatus Hussakof and Bryant 1919
†Rhynchodus pertenuis Eastman 1904
†Rhynchodus rostratus Eastman 1898
†Rhynchodus secans Newberry 1873
†Rhynchodus telleri Hussakof and Bryant 1919
†Rhynchodus tetrodon Jaekel 1903
†Rhynchodus wildungensis Jaekel 1929
G. Rinodus Newberry and Worthen 1866
Invalid names: Aulacosteidae Fowler 1947 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Kiessling 2004, Carroll 1988 | |||||
Age range
Maximum range based only on fossils: base of the Eifelian to the top of the Pennsylvanian or 393.47000 to 298.90000 Ma
Minimum age of oldest fossil (stem group age): 387.95 Ma
Minimum age of oldest fossil (stem group age): 387.95 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Eifelian | USA (Michigan) | Ptyctodus sp. (207839 238768) | |
| Early/Lower Givetian | Belarus | Rhynchodus sp. (225886) | |
| Givetian | USA (Michigan) | Eczematolepis sp. (238764) Ptyctodus sp. (111894 238762) | |
| Givetian | USA (Iowa) | Ptyctodus sp., Rhynchodus sp., Ptyctodopsis menzeli (163063) | |
| Late/Upper Givetian | Belarus | Ctenurella sp. (225888) | |
| Late/Upper Givetian - Early/Lower Frasnian | Germany (North Rhine-Westphalia) | Ctenurella gladbachensis (226078) Ptyctodus sp., Ctenurella gladbachensis (197071) | |
| Early/Lower Frasnian | Australia (Western Australia) | Materpiscis attenboroughi (225575) | |
| Early/Lower Frasnian | Iran | Ptyctodontidae indet. (226048) | |
| Early/Lower Frasnian | Russian Federation | Ptyctodus sp. (90343) | |
| Frasnian | Russian Federation | Rhynchodus sp. (239134) | |
| Middle Frasnian | Poland (Swietokrzyskie Voivodship) | Rhynchodus sp. 1, Rhynchodus sp. 2 (226394) | |
| Famennian | Latvia | Chelyophorus sp. (176220 238744) | |
| Middle Famennian | Russian Federation (Oryol Oblast) | Ptyctodus major (226045) | |
| Late/Upper Famennian | USA (Missouri) | Ptyctodus calceolus (6027 6041 6051) | |
| Pennsylvanian | United Kingdom | Chelyophorus griffithii (132779) |