Silesauridae Nesbitt et al., 2010
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publication ID |
https://doi.org/ 10.1206/352.1 |
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persistent identifier |
https://treatment.plazi.org/id/357D771B-FF7B-FF70-EC1D-FF2DFB3EFB9C |
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treatment provided by |
Tatiana |
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scientific name |
Silesauridae Nesbitt et al., 2010 |
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Silesauridae Nesbitt et al., 2010
DEFINITION: Stem: The most inclusive clade containing Silesaurus opolensis Dzik, 2003 , but not Passer domesticus Linnaeus, 1758 , Triceratops horridus Marsh (1889) , and Alligator mississippiensis Daudin, 1801 –1803.
TEMPORAL RANGE: Middle Triassic (Anisian, Asilisaurus kongwe ) to Late Triassic (Norian, Eucoelophysis baldwini Sullivan and Lucas, 1999 ).
SUPPORT: (1) Exits of the hypoglossal nerve (XII) nearly aligned in a near anteroposteriorly plane (113-1)*. (2) Rugose ridge on the anterolateral edges of the supraoccipital (127-1)*. (3) Cervical centra 3–5 longer than middorsal (181-1)*. (4) Notch ventral to the proximal head of the femur (304-1)*.
Other possible synapomorphies: AC- CTRAN: Ventral process of the squamosal narrower than one quarter of its length (56- 1); teeth fused to the bone of attachment at the base (174-0), unknown in Lewisuchus ; proximal articular surface of the humerus continuous with the deltopectoral crest (233- 0); pedal unguals dorsolaterally compressed (400-1), unknown in Lewisuchus . DEL- TRAN: Straight transverse groove on the proximal surface of the femur (314-1).
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