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Prismatoolithus hirschi

Reptilia - Prismatoolithidae

Taxonomy
Prismatoolithus hirschi was named by Jackson and Varricchio (2010). It is considered to be a form taxon. Its type specimen is ES 152, an egg, and it is a 3D body fossil. Its type locality is First Find Microsite (OTM 99-19), which is in a Campanian terrestrial horizon in the Two Medicine Formation of Montana.

Synonymy list
YearName and author
2010Prismatoolithus hirschi Jackson and Varricchio p. 1148 fig. 7
2014Prismatoolithus hirschi Moreno-Azanza et al. p. 847
2014Prismatoolithus hirschi Sellés et al. p. 48
2017Prismatoolithus hirschi Skutschas et al.

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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
—Cotylosauria()
—Amniota
—Sauropsida
RankNameAuthor
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
familyPrismatoolithidae
genusPrismatoolithus
specieshirschi

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.

†Prismatoolithus hirschi Jackson and Varricchio 2010
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Diagnosis
ReferenceDiagnosis
F. D. Jackson and D. J. Varricchio 2010(as Combined Characters)—Eggshell consisting of two structural layers of calcite, with distinct transition from mammillary to prismatic layer; uniformly distributed squamatic texture within discernable prisms; shell thickness 500–561 μm; mammillary/prismatic layer thickness ratio 1:2–1:2.5.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988

Age range: Early/Lower Campanian or 83.50000 to 70.60000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Campanian83.5 - 70.6USA (Montana) Prismatoolithus hirschi (102180) Theropoda indet. (type locality: 94368)