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

Sigmala sigmala

Reptilia - Rhynchocephalia - Sphenodontidae

Taxonomy
Sigmala sigmala was named by Fraser (1986). Its type specimen is AUP 11083, a maxilla, and it is a 3D body fossil. Its type locality is Cromhall Quarry general, which is in a Rhaetian fissure fill limestone/mudstone in the United Kingdom. It is the type species of Sigmala.

Synonymy list
YearName and author
1986Sigmala sigmala Fraser p. 166

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

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderRhynchocephalia
suborderSphenodontia()
infraorderEusphenodontia
Neosphenodontia
familySphenodontidaeCope 1869
genusSigmala
speciessigmala

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