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Silesauridae

Reptilia

Taxonomy
Silesauridae was named by Langer et al. (2010) [referred to as a "stem-based clade" instead of a family: "All archosaurs closer to Silesaurus opolensis, than to Heterodontosaurus tucki and Marasuchus lilloensis." Note that Nesbitt et al (2010: reference 32231) also erect Silesauridae as a "new clade" but with a different phylogenetic definition.]. Its type is Silesaurus. It was considered monophyletic by Langer et al. (2010) and Nesbitt (2011).

It was assigned to Dinosauriformes by Nesbitt et al. (2010), Langer et al. (2010), Nesbitt (2011), Bittencourt and Langer (2011), Sarigul et al. (2018) and Martz and Small (2019).

Synonyms
Synonymy list
YearName and author
1988Lewisuchinae Paul p. 242
2010Silesauridae Langer et al.
2010Silesauridae Nesbitt et al. p. 95
2011Silesauridae Bittencourt and Langer p. 35
2011Silesauridae Nesbitt p. 208 fig. 52
2018Silesauridae Sarigul et al.
2019Silesauridae Martz and Small p. 16

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
RankNameAuthor
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Silesauridae
—Silesauridae

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. †Silesauridae Langer et al. 2010
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G. †Amanasaurus Müller and Garcia 2023
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†Amanasaurus nesbitti Müller and Garcia 2023
G. †Asilisaurus Nesbitt et al. 2010
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†Asilisaurus kongwe Nesbitt et al. 2010
G. †Gamatavus Pretto et al. 2022
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†Gamatavus antiquus Pretto et al. 2022
G. †Lewisuchus Romer 1972
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†Lewisuchus admixtus Romer 1972
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Invalid names: Pseudolagosuchus major Arcucci 1987 [synonym]
Invalid names: Pseudolagosuchus Arcucci 1987 [synonym]
G. †Soumyasaurus Sarigul et al. 2018
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†Soumyasaurus aenigmaticus Sarigul et al. 2018
Unr. †Sulcimentisauria Martz and Small 2019
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G. †Diodorus Kammerer et al. 2012
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†Diodorus scytobrachion Kammerer et al. 2012
G. †Eucoelophysis Sullivan and Lucas 1999
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†Eucoelophysis baldwini Sullivan and Lucas 1999
G. †Kwanasaurus Martz and Small 2019
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†Kwanasaurus williamparkeri Martz and Small 2019
G. †Lutungutali Peecook et al. 2013
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†Lutungutali sitwensis Peecook et al. 2013
G. †Sacisaurus Ferigolo and Langer 2007
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†Sacisaurus agudoensis Ferigolo and Langer 2007
G. †Silesaurus Dzik 2003
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†Silesaurus opolensis Dzik 2003
G. †Technosaurus Chatterjee 1984
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†Technosaurus smalli Chatterjee 1984
Invalid names: Lewisuchinae Paul 1988 [invalid subgroup]
Diagnosis
ReferenceDiagnosis
S. J. Nesbitt et al. 2010Silesauridae differs from all other archosaurs in possessing the following unique combination of character states: rugose ridge on the anterolateral edges of the supraoccipital; notch ventral to femoral head; straight transverse groove on the proximal surface of the femur; and ilium has a straight ventral margin of the acetabulum (see Supplementary Information).
S. J. Nesbitt 2011The most inclusive clade containing Silesaurus opolensis Dzik, 2003, but not Passer domesticus Linnaeus, 1758, Triceratops horridus Marsh (1889), and Alligator mississippiensis Daudin, 1801–1803.