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Sankofa pyrenaica

Reptilia - Prismatoolithidae

Discussion

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 considered to be a form taxon. Its type specimen is UM1, an egg (thin section of an eggshell fragment), and it is a 3D body fossil. 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
2014Sankofa pyrenaica Sellés et al. p. 46
2016Sankofa pyrenaica Moreno-Azanza et al. p. 311
2016Sankofa pyrenaica Tanaka et al. p. 355

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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
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.

†Sankofa pyrenaica López-Martínez and Vicens 2012
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Diagnosis
ReferenceDiagnosis
N. López-Martínez and E. Vicens 2012Small-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.
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: Carroll 1988, Hendy et al. 2009

Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Spain (Cataluña) Sankofa pyrenaica (type locality: 138571 138572)