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Pseudosaynella
Taxonomy
Pseudosaynella was named by Spath (1923) [Sepkoski's age data: K Apti-l K Albi-l]. It is the type genus of Pseudosaynellinae.
It was assigned to Ammonoidea by Imlay (1945); to Ammonoidea by Sepkoski (2002); and to Pseudosaynellinae by Wright et al. (1996), El Qot (2018).
It was assigned to Ammonoidea by Imlay (1945); to Ammonoidea by Sepkoski (2002); and to Pseudosaynellinae by Wright et al. (1996), El Qot (2018).
Species
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by A. Hendy on 2013-04-30
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Pseudosaynella Spath |
| 1945 | Pseudosaynella Imlay p. 278 |
| 1996 | Pseudosaynella Wright et al. p. 71 |
| 2002 | Pseudosaynella Sepkoski |
| 2018 | Pseudosaynella El Qot p. 152 |
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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. †Pseudosaynella Spath 1923
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†Pseudosaynella bicurvata Michelin 1838
†Pseudosaynella fimbriata Imlay 1945
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 59.0 | 43.0 | 104.0 | 46.0 | 34.4 | |
| shell diameter | 3 | 107.3 | 78.0 | 193.0 | 82.0 | 65.3 | |
| shell inflation | 3 | 14.0 | 9.00 | 28.0 | 11.0 | 10.4 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Early/Lower Aptian to the top of the Late/Upper Aptian or 121.40000 to 113.20000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Aptian | United Kingdom (England) | P. undulata, P. fimbriata (278535) | |
| Early/Lower Aptian | France | P. sp. (228367) | |
| Early/Lower Aptian | Spain | P. bicurvata (154651) P. raresulcata, P. bicurvata (154649) | |
| Early/Lower Aptian | Iran | P. sp. (236102 236154 236190 236191) | |
| Early/Lower Aptian | Egypt | P. sp. (191708) | |
| Aptian | United Kingdom (England) | P. undulata, P. fimbriata (1748) | |
| Late/Upper Aptian | USA (Louisiana) | P. sp. (88598) | |
| Late/Upper Aptian | USA (Arkansas) | P. fimbriata (157775) P. walcotti, P. fimbriata (88604) |