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Glyptops ornatus

Reptilia - Pleurosternidae

Taxonomy
Glyptops ornatus was named by Marsh (1890). Its type specimen is YPM 1784, a skull (a laterally compressed skull without lower jaws), and it is a 3D body fossil. Its type locality is Quarry 9, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian fluvial-lacustrine mudstone/sandstone in the Morrison Formation of Wyoming.

It was synonymized subjectively with Compsemys plicatulus by Hay (1902); it was synonymized subjectively with Glyptops plicatulus by Hay (1908), Hay (1930) and Gaffney (1979).

Synonyms
Synonymy list
YearName and author
1890Glyptops ornatus Marsh p. 177 figs. Pl. 7:1
1897Glyptops ornatus Marsh p. 507
1916Glyptops utahensis Gilmore pp. 7-8 figs. 1-2, Pl. 1-2
1930Glyptops utahensis Hay p. 70
1949Glyptops utahensis Stokes p. 9
2019Glyptops ornatus Joyce and Anquetin

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Testudinata(Oppel 1811)
—Paracryptodira
familyPleurosternidae
genusGlyptops
speciesornatus

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.

†Glyptops ornatus Marsh 1890
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Invalid names: Glyptops utahensis Gilmore 1916 [synonym]
Diagnosis
ReferenceDiagnosis
W. G. Joyce and J. Anquetin 2019Glyptops ornatus can be diagnosed as a paracryptodire by the full list of characters listed for that clade above. Glyptops ornatus can be differentiated from all other paracryptodires by symplesiomorphically lacking a midline contact of peripherals I (in contrast to Selenemys lusitanica and Compsemys spp.), by possessing a cervical (in contrast to Pleurosternon bullockii, Selenemys lusitanica, and Toremys cassiopeia), paired gulars (in contrast to Pleurosternon bullockii), and a midline contact of the mesoplastra (in contrast to Riodevemys inumbragigas and most baenids), and by apomorphically possessing an elongate skull with low labial ridges and narrow triturating surfaces.
Measurements
No measurements are available
Composition: aragoniteg
Environment: freshwaterg
Locomotion: facultatively mobileg
Life habit: amphibiousg
Reproduction: oviparousg
Dispersal: direct/internalg
Dispersal 2: mobileg
Created: 2007-07-30 13:12:34
Modified: 2007-07-30 15:12:34
Source: g = genus
Reference: Lucas et al. 2006

Age range: Early/Lower Tithonian or 150.80000 to 145.00000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Kimmeridgian - Tithonian157.3 - 145.0USA (Wyoming) Glyptops ornatus, Glyptops plicatulus (type locality: 12816) Glyptops plicatulus (49636)
Early/Lower Tithonian150.8 - 145.0USA (Utah) Glyptops utahensis, Glyptops plicatulus (21852)