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Susisuchus anatoceps
Taxonomy
Susisuchus anatoceps was named by Salisbury et al. (2003). Its type specimen is SMNK 3804 PAL, a partial skeleton (Incomplete partially articulated skeleton), and it is a 3D body fossil. Its type locality is Between Nova Olinda and Santana do Cariri, which is in an Aptian terrestrial horizon in the Crato Formation of Brazil.
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Susisuchus anatoceps Salisbury et al. |
| 2009 | Susisuchus anatoceps Fortier and Schultz |
| 2011 | Susisuchus anatoceps Figueiredo et al. |
| 2011 | Susisuchus anatoceps Puértolas et al. |
| 2012 | Susisuchus anatoceps Bronzati et al. |
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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.
†Susisuchus anatoceps Salisbury et al. 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. C. Fortier and C. L. Schultz 2009 | Susisuchus anatoceps is distinguished from the new species [Susisuchus jaguaribensis] by the following combination of features: quadratojugal spine greatly reduced or absent at maturity (character 69-1); postorbital contacting quadratojugal, but not quadrate, medially (character 76-1); frontoparietal suture deeply within supratemporal fenestra; the frontal prevents broad contact between the postorbital and the parietal (character 81-0); large supraoccipital exposure on dorsal skull table (character 82-2); skull table with broad lateral curvature; and short caudolateral process of the squamosal (character 140-0). | |
| R. G. Figueiredo et al. 2011 | Susisuchus anatoceps differs from other crocodylomorph taxa based on the following combination of osteological features (autapomorphic characters marked with an asterisk): posterior process of the maxillary bone separating the lacrimal from nasal; lacrimal extends anteriorly beyond the anterior limit of the prefrontal; teeth needle-like and homodont; 11 thoracic vertebrae; four lumbar vertebrae; minimum width of the sacral ribs in an anteroposterior direction exceeds the maximum width of any of the diapophyses; postzygapophyses of caudal vertebrae 6–11 (the vertebrae terminal to caudal 11 are not preserved) unite medially to form a flat, horizontally aligned shelf, which extends terminally over the vertebral foramen; *maximum width of the proximal extremity of the ulna equivalent to that of the distal extremity, and about twice the minimum thickness of the ulnar shaft; absence of an anterior tubercle on the proximal extremity of the ulna; *unguals present only in hand digits 1 and 2; *scapular blade has straight anterior margins and concave posterior margins; dorsal shield comprising two rows of paravertebral osteoderms and two left and two right rows of accessory scutes; procoelous cervical vertebrae and platycoelous last cervical vertebra; amphicoelous thoracic, lumbar, and caudal vertebrae. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Bush and Bambach 2015, Benton 1983 | |||||
Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aptian | Brazil (Ceara) | Susisuchus anatoceps (77891) | |
| Late/Upper Aptian | Brazil (Ceará) | Susisuchus anatoceps (type locality: 114920) Susisuchus sp. (116148) |