| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hylaeochampsidae
Taxonomy
Hylaeochampsidae was named by Williston (1925). It was considered monophyletic by Buscalioni et al. (2011).
It was reranked as the subfamily Hylaeochampsinae by Nopcsa (1928); it was reranked as the unranked clade Hylaeochampsidae by Buscalioni et al. (2011), Puértolas-Pascual et al. (2013), Narváez et al. (2015) and Rio and Mannion (2021).
It was assigned to Crocodilidae by Nopcsa (1928); to Eusuchia by Kuhn (1946), Kuhn (1966) and Carroll (1988); and to Eusuchia by Andrade et al. (2011), Buscalioni et al. (2011), Puértolas-Pascual et al. (2013), Narváez et al. (2015) and Rio and Mannion (2021).
It was reranked as the subfamily Hylaeochampsinae by Nopcsa (1928); it was reranked as the unranked clade Hylaeochampsidae by Buscalioni et al. (2011), Puértolas-Pascual et al. (2013), Narváez et al. (2015) and Rio and Mannion (2021).
It was assigned to Crocodilidae by Nopcsa (1928); to Eusuchia by Kuhn (1946), Kuhn (1966) and Carroll (1988); and to Eusuchia by Andrade et al. (2011), Buscalioni et al. (2011), Puértolas-Pascual et al. (2013), Narváez et al. (2015) and Rio and Mannion (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Hylaeochampsidae Williston |
| 1928 | Hylaeochampsinae Nopcsa p. 187 |
| 1946 | Hylaeochampsidae Kuhn p. 64 |
| 1966 | Hylaeochampsidae Kuhn p. 86 |
| 1988 | Hylaeochampsidae Carroll |
| 2011 | Hylaeochampsidae Andrade et al. |
| 2011 | Hylaeochampsidae Buscalioni et al. |
| 2013 | Hylaeochampsidae Puértolas-Pascual et al. |
| 2015 | Hylaeochampsidae Narváez et al. |
| 2021 | Hylaeochampsidae Rio and Mannion |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
Unr. †Hylaeochampsidae Williston 1925
show all | hide all
G. †Acynodon Buscalioni et al. 1997
hide
†Acynodon adriaticus Delfino et al. 2008
†Acynodon iberoccitanus Buscalioni et al. 1997
†Acynodon lopezi Buscalioni et al. 1997
G. †Pietraroiasuchus Buscalioni et al. 2011
hide
†Pietraroiasuchus ormezzanoi Buscalioni et al. 2011
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. D. Buscalioni et al. 2011 | Small eusuchians with brevirostral skull and thickned cranial and postcranial bones. Premaxillary (unknown in Hylaeochampsa and in Pachycheilosuchus) and anterior maxillary alveolar series of subequal size, maxilla posteriorly extends in a process devoid of teeth, minimal sculpturing of maxillary surface, reduced number of maxillary teeth, prefrontal longer than lachrymal (differing in Pietraroiasuchus, whereby the prefrontal and lachrymal are the same size, and unknown in P. trinquei); extremely narrow suborbital fenestra (unambiguous synapomorphy for the clade); choana anteriorly set in pterygoid (unknown in P. trinquei), pterygoid flanges relatively short and not reaching laterally the level of the quadrate medial condyle (unknown in P. trinquei), extremely robust ectopterygoid with expanded jugal and maxilla sutures, protuberance in the ventral surface of the quadrate with prominent muscle scars (unambiguous synapomorphy for the clade); vertical ridge at the occipital surface (unambiguous synapomorphy for the clade, unknown in P. trinquei), reduced anteroposterior extension of the quadrate articular process that does not (but may almost) reach the level of the occipital condyle (unambiguous synapomorphy for the clade, unknown in P. trinquei), anterodorsal margin of surangular elevated and extended (unknown in Hylaeochampsa). |