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Sankofa pyrenaica

Reptilia - Prismatoolithidae

Discussion

Diagnosis. Small-sized, asymmetric ovoid eggs measuring about 7 4 cm, with a smooth eggshell averaging 0.27 mm in thickness, a prismatic eggshell structure with no marked distinction between the mammillary and pali- sade layers, a peculiar prism pattern with a jagged central zone, an incipient squamatic structure and a rather low number of pore openings of variable diameters averaging 15 lm. Eggs sub-vertically oriented in probably two or more layered clutches.

Remarks. Sankofa pyrenaica oogen. nov. oosp. nov. differs from Troodon (Prismatoolithus levis Zelenitsky and Hills 1996) eggs and eggshells by having a less elongated, more asymmetric egg shape, thinner eggshells and a different ultrastructural pattern.

Taxonomy
Sankofa pyrenaica was named by López-Martínez and Vicens (2012). It is not extant. It is considered to be a form taxon. Its type specimen is UM1, an egg (thin section of an eggshell fragment). Its type locality is The Urbanizacion Montsec site, which is in a Campanian/Maastrichtian lagoonal sandstone/limestone in the Arén Formation of Spain.

Synonymy list
YearName and author
2012Sankofa pyrenaica López-Martínez and Vicens p. 329 figs. 3-5
2014Sankofa pirenaica Moreno-Azanza et al. p. 847
2016Sankofa pyrenaica Tanaka et al. p. 355

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
familyPrismatoolithidae
genusSankofa
speciespyrenaica

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.

Diagnosis
No diagnoses are available