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Prismatoolithus levis

Osteichthyes - Prismatoolithidae

Taxonomy
Prismatoolithus levis was named by Zelenitsky and Hills (1996). It is considered to be a form taxon. Its type specimen is RTMP 94.179.1, an egg, and it is a 3D body fossil. Its type locality is New Egg Site, Devil's Coulee, which is in a Campanian terrestrial mudstone in the Oldman Formation of Canada.

Entered
by M. Carrano on 2005-08-29; modified by M. Carrano on 2022-06-24

Synonymy list
YearName and author
1996Prismatoolithus levis Zelenitsky and Hills
1997Prismatoolithus levis Mikhailov p. 79
2000Prismatoolithus levis Zelenitsky p. 24
2000Prismatoolithus levis Zelenitsky et al. p. 130
2001Prismatoolithus levis Hirsch p. 389
2002Prismatoolithus levis Cousin p. 40
2002Prismatoolithus levis Varricchio et al. p. 570
2003Prismatoolithus levis Zhao p. 161
2010Prismatoolithus levis Jackson et al. p. 255
2011Prismatoolithus levis Tanaka et al. p. 46
2012Prismatoolithus levis Agnolin et al. p. 53
2014Prismatoolithus levis Moreno-Azanza et al. p. 852
2014Prismatoolithus levis Sellés et al. p. 48
2015Prismatoolithus levis Currie and Koppelhus p. 626
2015Prismatoolithus levis Varricchio et al. p. 5
2016Prismatoolithus levis Moreno-Azanza et al. p. 311
2017Prismatoolithus levis Skutschas et al.
2018Prismatoolithus levis Funston and Currie p. 439
2018Prismatoolithus levis Wang et al. p. 267

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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()
—Ornithischia()
familyPrismatoolithidae
genusPrismatoolithus
specieslevis

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 levis Zelenitsky and Hills 1996
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Diagnosis
ReferenceDiagnosis
D. J. Varricchio et al. 2002Outer surface smooth or with faint longitudinal striations; isolated or double pore openings; prismatic layer to mammillary layer thickness ratio range from 6:1 to 8: 1; eggshell thickness 0.70–1.0 mm (main range); eggs elongate and asymmetric; egg size approximately 100–160 3 50–70 mm; Elongation Index 5 2 (Note: the elongation index is the ratio of egg’s long diameter to the short diameter.)