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Psammodus
Taxonomy
Psammodus was named by Agassiz (1834) [Sepkoski's age data: D Fame-u C Vise Sepkoski's reference number: 1066]. It is the type genus of Psammodontidae.
It was assigned to Psammodontiformes by Sepkoski (2002); and to Psammodontidae by Woodward (1889), Hay (1902), Jordan (1963), Ingavat and Janvier (1981), Thurmond and Jones (1981) and Nelson (2006).
It was assigned to Psammodontiformes by Sepkoski (2002); and to Psammodontidae by Woodward (1889), Hay (1902), Jordan (1963), Ingavat and Janvier (1981), Thurmond and Jones (1981) and Nelson (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1834 | Psammodus Agassiz p. 90 |
| 1889 | Psammodus Woodward p. 99 |
| 1902 | Psammodus Hay p. 284 |
| 1963 | Psammodus Jordan p. 593 |
| 1981 | Psammodus Ingavat and Janvier p. 653 figs. 1; B, B2, B3 |
| 1981 | Psammodus Thurmond and Jones p. 79 |
| 2002 | Psammodus Sepkoski |
| 2006 | Psammodus Nelson p. 44 |
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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. †Psammodus Agassiz 1834
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†Psammodus angularis Newberry and Worthen 1866
†Psammodus caelatus Saint John and Worthen 1883
†Psammodus canaliculatus M'Coy 1848
†Psammodus cornutus Agassiz 1843
†Psammodus crassidens Saint John and Worthen 1883
†Psammodus expansus Davis 1884
†Psammodus glyptus Saint John and Worthen 1883
†Psammodus grandis Saint John and Worthen 1883
†Psammodus longidens Agassiz 1837
†Psammodus lovianus Saint John and Worthen 1883
†Psammodus plenus Saint John and Worthen 1883
†Psammodus porosus Agassiz 1837
†Psammodus reticulatus Newberry and Worthen 1866
†Psammodus rugosus Agassiz 1836
†Psammodus salopiensis Woodward 1889
†Psammodus springeri Saint John and Worthen 1883
†Psammodus trapeziformis Davis 1883
†Psammodus tumidus Saint John and Worthen 1883
†Psammodus turgidus Agassiz 1838
†Psammodus turgidus Saint John and Worthen 1883
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Wagner 2023, Carroll 1988 | |||||
Age range: base of the Kinderhookian to the top of the Middle Bathonian or 358.90000 to 164.70000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kinderhookian | USA (Montana) | P. sp. (545) | |
| Mississippian | USA (Alabama) | P. sp. (84103) | |
| Mississippian | United Kingdom | Helodus turgidus, P. rugosus, P. canaliculatus, P. cornutus (132781) P. rugosus (132789) P. trapeziformis (137333) | |
| Visean | Egypt | P. sp. (46983) | |
| Visean | United Kingdom | P. cornutus (132783) | |
| Asbian | United Kingdom (Northern Ireland) | P. sp. (6949) | |
| Late/Upper Mississippian | USA (Alabama) | P. sp. (84104) | |
| Pennsylvanian | United Kingdom | P. expansus (137324) | |
| Moscovian | Russian Federation | P. spicularis (132707) | |
| Wuchiapingian | Pakistan | P. sp. (90255) | |
| Middle Bathonian | United Kingdom (England) | P. rugosus (59357) |