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Prionochelys nauta

Reptilia - Testudines

Taxonomy
Prionochelys nauta was named by Zangerl (1953). Its type specimen is CNHM P26237, a partial skeleton, and it is not a trace fossil. Its type locality is Devil's Backbone, which is in a Campanian marine marl in the Marlbrook Marl Formation of Arkansas.

Synonymy list
YearName and author
1953Prionochelys nauta Zangerl p. 249 figs. Fig. 116-117
2018Prionochelys nauta Gentry

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
—PanchelonioideaJoyce et al. 2004
—PancheloniidaeJoyce et al. 2004
genusPrionochelys
speciesnauta

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.

†Prionochelys nauta Zangerl 1953
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Diagnosis
ReferenceDiagnosis
A. D. Gentry 2018Can be distinguished from P. matutina by the presence of a nearly triangular first peripheral in dorsal or ventral view, a pronounced cervical keel elevation on the
dorsal facet of the preneural, a preneural that is wider than long with distinct anterolateral
`wings', the lack of a second epineural integrated into to the pectoral elevation of the neural
series, peripherals with a deeply notched marginal edge such that the depth of the notch in peripherals 610 is equal to or greater than the width of the peripheral at the level of the scute sulcus, and costal plates wider than the adjacent fontanelles.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: freshwatersubo
Locomotion: actively mobilec
Life habit: aquaticsubo
Diet: omnivoresubo
Reproduction: oviparoussubo
Created: 2005-08-26 14:49:00
Modified: 2005-08-26 16:49:00
Source: subo = suborder, c = class, subp = subphylum
References: Carroll 1988, Uetz 2005, Hendy et al. 2009

Age range: base of the Maastrichtian to the top of the Late/Upper Campanian or 72.10000 to 70.60000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (Arkansas) Prionochelys nauta (81996 type locality: 82004)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (New Jersey) Prionochelys nauta (14504)
Maastrichtian72.1 - 66.0USA (New Jersey) Prionochelys nauta (99138)