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Palmulasaurus quadratus

Reptilia - Plesiosauria - Polycotylidae

Taxonomy
Palmula quadratus was named by Albright et al. (2007). Its type specimen is MNA V9442, a partial skeleton (anterior part of rostrum, anterior part of mandible, fragment of articular, fragment of occipital condyle, partial right coracoid, partial right scapula, comple), and it is a 3D body fossil. Its type locality is Near Big Water, Tropic Shale (MNA loc. 1494), which is in a Turonian marine shale in the Tropic Shale Formation of Utah. It is the type species of Palmula, Palmulasaurus, Palmula.

It was recombined as Palmulasaurus quadratus by Albright et al. (2007).

Synonymy list
YearName and author
2007Palmula quadratus Albright et al. pp. 42-47 figs. 3-6
2007Palmulasaurus quadratus Albright et al. p. 1051

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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
RankNameAuthor
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
suborderSauropterygia
orderPlesiosauriade Blainville 1835
superfamilyPlesiosauroideaWelles 1943
familyPolycotylidaeWilliston 1908
subfamilyPalmulainae
genusPalmulasaurus
speciesquadratus()

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.

†Palmulasaurus quadratus Albright et al. 2007
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Diagnosis
ReferenceDiagnosis
L. B. Albright et al. 2007Small as an adult; smaller than AMM 98.1.1 from South Dakota and UMUT MV 19965 from Japan; distinctly polygonal (i.e., nearly equi-dimensional) radius, ulna, tibia, and fibula, unlike short and broad epipodials of all other polycotylids exclusive of Palmulainae, subfam. nov.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Environment: marineo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoreo
Reproduction: viviparouso
Created: 2009-07-20 06:05:48
Modified: 2011-08-12 01:58:15
Source: o = order
Reference: Kiessling 2004

Age range: Early/Lower Turonian or 93.50000 to 89.30000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Turonian93.5 - 89.3USA (Utah) Palmula quadratus (type locality: 150870)