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Coelophysis rhodesiensis

Reptilia -

Taxonomy
Syntarsus rhodesiensis was named by Raath (1969). Its type specimen is QG/1, a partial skeleton, and it is a 3D body fossil. Its type locality is Kwengula stream, Southcote Farm, which is in a Hettangian/Sinemurian terrestrial sandstone in the Forest Sandstone Formation of Zimbabwe.

It was recombined as Megapnosaurus rhodesiensis by Irmis (2004), Weems (2006), Milner et al. (2006), Lucas et al. (2006), Smith and Merrill (2006), Jasinski (2011) and Petti et al. (2011); it was recombined as Coelophysis rhodesiensis by Paul (1988), Bristowe and Raath (2004), Yates (2005), Gay (2005), Ezcurra (2006), Spielmann et al. (2007), Rinehart et al. (2007), Ezcurra and Novas (2007), Ezcurra (2007), Nesbitt et al. (2007), Ezcurra and Cuny (2007), Langer et al. (2010), Novas et al. (2011), Carrano et al. (2012), Delsate and Ezcurra (2014), Nesbitt and Ezcurra (2015) and Griffin and Nesbitt (2016).

Synonymy list
YearName and author
1969Syntarsus rhodesiensis Raath pp. 1-2 figs. 1-6, Pl. 1-5
1972Syntarsus rhodesiensis Bond p. 152
1977Syntarsus rhodesiensis Raath p. 1
1979Syntarsus rhodesiensis Cruickshank p. 170
1980Syntarsus rhodesiensis Molnar p. 134 fig. 3
1981Syntarsus rhodesiensis Osmolska p. 90
1984Syntarsus rhodesiensis Welles p. 176
1986Syntarsus rhodesiensis Gauthier p. 9
1988Coelophysis rhodesiensis Paul p. 262
1989Syntarsus rhodesiensis Rowe p. 125
1990Syntarsus rhodesiensis Raath pp. 91-92
1990Syntarsus rhodesiensis Rowe and Gauthier p. 152
1993Syntarsus rhodesiensis Paul p. 402
1997Syntarsus rhodesiensis Erickson p. 5
1997Syntarsus rhodesiensis Norell and Makovicky p. 11
1997Syntarsus rhodesiensis Rowe et al. p. 108
1997Syntarsus rhodesiensis Ryan and Vickaryous p. 171
2001Syntarsus rhodesiensis Hurum p. 39
2003Syntarsus rhodesiensis Rauhut p. 19
2004Coelophysis rhodesiensis Bristowe and Raath p. 39
2004Syntarsus rhodesiensis Carrano and Sampson p. 553 fig. 4
2004Megapnosaurus rhodesiensis Irmis p. 13
2004Syntarsus rhodesiensis Tykoski and Rowe p. 48
2005Coelophysis rhodesiensis Gay p. 278
2005Coelophysis rhodesiensis Yates p. 107
2006Coelophysis rhodesiensis Ezcurra p. 651
2006Syntarsus rhodesiensis Langer and Benton p. 318 fig. 4
2006Megapnosaurus rhodesiensis Lucas et al. p. 90
2006Megapnosaurus rhodesiensis Milner et al. p. 326
2006Megapnosaurus rhodesiensis Smith and Merrill pp. 595-597
2006Megapnosaurus rhodesiensis Weems p. 371
2007Coelophysis rhodesiensis Ezcurra p. 186
2007Coelophysis rhodesiensis Ezcurra and Cuny p. 78 fig. 6
2007Coelophysis rhodesiensis Ezcurra and Novas p. 36
2007Coelophysis rhodesiensis Nesbitt et al. p. 216
2007Coelophysis rhodesiensis Rinehart et al. p. 175
2007Syntarsus rhodesiensis Sampson and Witmer p. 38
2007Coelophysis rhodesiensis Spielmann et al. p. 385
2009Coelophysis rodhesiensis Martínez and Alcober p. 5
2010Coelophysis rhodesiensis Langer et al. p. 92
2011Megapnosaurus rhodesiensis Jasinski p. 199
2011Coelophysis rhodesiensis Novas et al. p. 340
2011Megapnosaurus rhodesiensis Petti et al. p. 38
2012Coelophysis rhodesiensis Carrano et al. p. 227
2012Syntarsus rhodesiensis Paulina Carabajal and Currie p. 86
2013Syntarsus rhodensis Ibiricu et al. p. 8
2014Coelophysis rhodesiensis Delsate and Ezcurra p. 175
2015Coelophysis rhodesiensis Nesbitt and Ezcurra p. 516
2016Coelophysis rhodesiensis Griffin and Nesbitt p. 2
2016Syntarsus rhodesiensis Martill et al. p. 21

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
RankNameAuthor
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
superfamilyCoelophysoidea
genusCoelophysis
speciesrhodesiensis()

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.

Diagnosis
ReferenceDiagnosis
G. S. Paul 1993Gracile skull and skeleton. Post temporal fenestra absent, teeth small, row of 19-20 maxillary teeth ends beneath antorbital fenestra, 25 dentary teeth. Neck relatively short. Pubis shorter than femur, no distal pubic expansions, distal ischial expansion relatively small, hindlimbs relatively long.
M. T. Carrano et al. 2012Coelophysoid theropod with: (1) blunt, squared anterior margin of antorbital fossa; (2) base of lacrimal vertical ramus width < 30% its height; and (3) maxillary and dentary tooth rows end posteriorly at anterior rim of lacrimal (all from Bristowe & Raath 2004).