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Angelosaurus romeri

Caseidae

Taxonomy
Angelosaurus romeri was named by Olson and Barghusen (1962). Its type specimen is FMNH (CNHM) UR 827, a set of postcrania (pelvis, right femur, vertebrae, some with associated ribs and/or chevrons), and it is a 3D body fossil. Its type locality is KF-1, Omega Quarry (Chickasha Formation), which is in a Roadian/Wordian channel sandstone/conglomerate in the Chickasha Formation of Oklahoma.

Synonymy list
YearName and author
1962Angelosaurus romeri Olson and Barghusen p. 33 figs. 4C, 7A-D, 8A, 9B; Pls. IC, F, H-I, IIF-I, IIIA-F
1986Angelosaurus romeri Reisz

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Caseasauria()
familyCaseidae
genusAngelosaurus
speciesromeri

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.

†Angelosaurus romeri Olson and Barghusen 1962
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Diagnosis
ReferenceDiagnosis
E. C. Olson and H. Barghusen 1962Pubis and ischium forming a broad, somewhat saddle-shaped plate with strong median symphysis. Sacral ribs bladelike and almost completely separated from each other at articulation with ilium. All three sacral vertebrae ankylosed. Femur with internal trochanter developed approximately halfway between proximal and distal limits of the intertrochanteric fossa. Fourth trochanter prominent, with marked drop-off to slightly developed adductor ridge.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Hendy et al. 2009

Age range: base of the Roadian to the top of the Wordian or 272.30000 to 264.28000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Roadian - Wordian272.3 - 264.28USA (Oklahoma) Angelosaurus romeri (27414 type locality: 27573)