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Piatnitzkysauridae
Taxonomy
Piatnitzkysauridae was named by Carrano et al. (2012).
It was assigned to Megalosauroidea by Carrano et al. (2012); and to Megalosauroidea by Hanson and Makovicky (2013), Rauhut et al. (2016).
It was assigned to Megalosauroidea by Carrano et al. (2012); and to Megalosauroidea by Hanson and Makovicky (2013), Rauhut et al. (2016).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Piatnitzkysauridae Carrano et al. p. 251 |
| 2013 | Piatnitzkysauridae Hanson and Makovicky p. 781 |
| 2016 | Piatnitzkysauridae Rauhut et al. p. 38 |
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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.
Fm. †Piatnitzkysauridae Carrano et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. T. Carrano et al. 2012 | Megalosauroids possessing the following synapomor phies: (1) two parallel rows of nutrient foramina on lateral surface of maxilla (21(1)); also in Eocarcharia and Shaochilong); (2) vertically striated or ridged paradental plates (140(1)); also in abelisaurids, Megalosaurus and Proceratosaurus); (3) reduced axial parapophyses (166(1)); also in coelophysoids, Eustreptospondylus and Afrovenator); (4) anteriorly inclined posterior dorsal neural spines (192(1)); in parallel with Allosauroidea); and (5) canted distal humeral condyles (236(1)); also in Poekilopleuron, Allosauridae and Fukuiraptor). In addition, among tetanurans these taxa show reversals to the primitive condition for the following features: (1) a short or absent anterior maxillary ramus (12(0)); (2) moderate development of axial diapophyses (167(0)); and (3) no axial pleurocoels (168(0)).
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