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Westlothiana
Taxonomy
Westlothiana was named by Smithson and Rolfe (1990). Its type is Westlothiana lizziae.
It was assigned to Reptilia by Smithson and Rolfe (1990); to Tetrapoda by Vallin and Laurin (2004); and to Tetrapoda by Clack and Milner (2015).
It was assigned to Reptilia by Smithson and Rolfe (1990); to Tetrapoda by Vallin and Laurin (2004); and to Tetrapoda by Clack and Milner (2015).
Species
W. lizziae (type species)
Synonymy list
Year | Name and author |
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1990 | Westlothiana Smithson and Rolfe pp. 137-138 fig. 1 |
2004 | Westlothiana Vallin and Laurin p. 65 fig. 6 |
2015 | Westlothiana Clack and Milner p. 63 |
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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. †Westlothiana Smithson and Rolfe 1990
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†Westlothiana lizziae Smithson and Rolfe 1990
Diagnosis
Reference | Diagnosis | |
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T. R. Smithson and W. D. I. Rolfe 1990 | Moderate sized reptile (overall length 200 mm); pattern of skull bones plesi- omorphic, prefrontal—postfrontal suture precludes frontal from orbit margin. Temporal openings absent, orbits large enclosing sclerotic plates. Approximately 48 simple conical teeth in each jaw, caniniform tusks absent. Approximately 32 gastrocentrous presacral vertebrae. Similar number of vertebrae in the tail. Neural arch fused to the centrum, large wedge-shaped intercentra, ribs extend the length of the presacral column. Large pelvis, extensive puboischiadic plate but ilium relatively small with narrow iliac blade. Long narrow femur, little expan- ded at proximal or distal ends. Tibia and fibula relatively short, measuring half the length of the femur. Tarsus well ossified, large astragalus and calcaneum, two centralia, and five tarsals. Pes phalangeal formula: 23454. |
Measurements
No measurements are available
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Source: c = class, subp = subphylum, uc = unranked clade | |||||
References: Carroll 1988, Hendy et al. 2009 |
Age range: Brigantian or 336.00000 to 330.90000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Brigantian | United Kingdom (Scotland) | Reptilia indet. (22725) |