|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Reptilia - Drepanosauridae
It was assigned to Pseudosuchia by Calzavara et al. (1981); to Thecodontia by Carroll (1988); to Megalancosauridae by Renesto (1994); to Drepanosauridae by Renesto (2000), Senter (2004), Renesto and Dalla Vecchia (2005) and Dalla Vecchia (2006); and to Megalancosaurinae by Renesto et al. (2010).
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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.
|M. Calzavara et al. 1981||Reptile of small size, with triangular diapsid skull and a large semielliptical naris; premaxilla with a "beak-like" tip of the snout; trapezoidal preorbital opening; large subcircular orbital; small upper and probably large lower temporal opening; jugal triradiate; about 30 teeth in each part of the upper and 25 teeth in the lower jaw; dentition thecodont or prothecodont; teeth small, sharp pointed and isodont; fore-limbs of remarkable size, lower arm elongated; hand with 3 or ?4 carpalia and 5 digits with the phalanx formula 2-2-3-3-3; claws hooked, large and sharp pointed; first 3 digits probably opponible to the other 2; 6 cervical vertebrae, 4 of them elongated; pubis rod-like, elongated and approached to the ischium.|