Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Eostega

Reptilia - Suliformes - Sulidae

Taxonomy
Eostega was named by Lambrecht (1929).

It was assigned to Elopterygidae by Lambrecht (1933), Wetmore (1960) and Olson (1985); and to Sulidae by Mlikovsky (2002), Mlikovsky (2007) and Mayr (2009).

Species
E. lebedinskyi

Synonymy list
YearName and author
1929Eostega Lambrecht
1933Eostega Lambrecht p. 289
1960Eostega Wetmore p. 25
1985Eostega Olson p. 192
2002Eostega Mlikovsky p. 66
2007Eostega Mlikovsky p. 20
2009Eostega Mayr p. 64

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
RankNameAuthor
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
subclassNeornithesGadow 1893
—Aequornithes
—Feraequornithes
superorderPelecanimorphaeHuxley 1867
orderSuliformesSharpe 1891
familySulidaeReichenbach 1849
genusEostegaLambrecht 1929

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.

G. †Eostega Lambrecht 1929
show all | hide all
†Eostega lebedinskyi Lambrecht 1929
Diagnosis
ReferenceDiagnosis
J. Mlikovsky 2007Typical sulid with a strong, straight mandible, having a single fenestra, which differs from mandibles of modern sulid genera in having: (1) processus coronoideus located above internal fenestra mandibularis, (2) medial fossa aditus canalis neurovascularis sharply bordered and narrow, (3) cotyla medialis of the fossa articularis quadratica long and slender, (4) cotyla caudalis of the same fossa narrow and clearly bordered posteriorly, and (5) dorsal margin of the intermediate part of ramus mandibulae rather narrow, with medial ridge lower than lateral ridge.