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Psephoderma alpinum

Reptilia - Sauropterygia

Taxonomy
Psephoderma alpinum was named by Meyer (1858). It is a 3D body fossil. It is the type species of Psephoderma.

Synonyms
Synonymy list
YearName and author
1858Psephoderma alpinum Meyer
1878Placodus zitteli Amman
1948Placochelys malanchinii Boni
1980Placochelys stoppanii Pinna
1989Psephoderma alpinum Pinna and Nosotti
2001Psephoderma alpinum Rieppel pp. 59-62, 87 figs. 28-29

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
RankNameAuthor
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
orderSauropterygia
Placodontiformes
orderPlacodontiaCope 1871
suborderCyamodontoideaNopcsa 1923
PlacochelyidaRomer 1956
genusPsephodermavon Meyer 1858
speciesalpinumMeyer 1858

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
ReferenceDiagnosis
O. Rieppel 2001Same as for genus [Psephoderma], of which this is the only known species