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Eucoelophysis baldwini

Osteichthyes

Taxonomy
Eucoelophysis baldwini was named by Sullivan and Lucas (1999). Its type specimen is NMMNH P-22298, a set of postcrania, and it is a 3D body fossil. Its type locality is Orphan Mesa Loc. 3, which is in a Norian terrestrial sandstone in the Chinle Formation of New Mexico.

It was considered a nomen dubium by Tykoski and Rowe (2004).

Entered
by M. Carrano on 2005-10-05; modified by M. Carrano on 2013-10-27

Synonymy list
YearName and author
1999Eucoelophysis baldwini Sullivan and Lucas
2005Eucoelophysis baldwini Heckert et al. p. 35
2006Eucoelophysis baldwini Ezcurra p. 651
2007Eucoelophysis baldwini Irmis et al. p. 361
2007Eucoelophysis baldwini Nesbitt et al. p. 211
2007Eucoelophysis baldwini Spielmann et al. p. 385
2010Eucoelophysis baldwini Langer et al. p. 58
2011Eucoelophysis baldwini Nesbitt p. 47
2012Eucoelophysis baldwini Kammerer et al. p. 277
2014Eucoelophysis baldwini Marzola and Dalla Vecchia p. 13
2016Eucoelophysis baldwini Griffin and Nesbitt p. 8
2019Eucoelophysis baldwini Martz and Small p. 2
2024Eucoelophysis baldwini Fonseca et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—ParapredentataNorman 2022
—Silesauridae
—Sulcimentisauria
genusEucoelophysis
speciesbaldwini

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.

†Eucoelophysis baldwini Sullivan and Lucas 1999
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Diagnosis
ReferenceDiagnosis
M. D. Ezcurra 2006Dinosauriform diagnosable by the following autapomorphies (see Discussion): non-inva-
sive pleurocoels in the dorsal vertebrae; strongly marked U-shaped ischio-acetabular groove (Sullivan & Lucas 1999); absence of femoral trochanteric shelf; cnemial crest distinctively offset from the tibial shaft, cranially straight, and without lateral notch; and probably femoral fourth trochanter reduced (see below).
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:52
Modified: 2004-12-14 14:50:52
Source: o = order
References: Kiessling 2004, Marsh 1875

Age range: Norian or 227.30000 to 205.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Norian227.3 - 205.7USA (New Mexico) Coelophysis sp. (type locality: 54007)