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Pipestoneia

Mammalia - Leptomerycidae

Taxonomy

Species
P. douglassi (type species)

Synonymy list
YearName and author
2007Pipestoneia Tabrum and Métais

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Ruminantiamorpha
Ruminantia(Scopoli 1777)
Pecora()
familyLeptomerycidae
genusPipestoneia

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. †Pipestoneia Tabrum and Métais 2007
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Pipestoneia douglassi Tabrum and Métais 2007
Diagnosis
ReferenceDiagnosis
A. R. Tabrum and G. Métais 2007[as for type species] Bunoselenodont artiodactyl similar in size to “Leptotragulus” profectus and “Leptomeryx” mammifer; upper and lower molars with rugose enamel; P2 double-rooted and lacking protocone; upper molars with prominent ribs on paracone and metacone, well-developed parastyle and mesostyle, strongly developed cingular entostyle; metastyle prominent and recurved on M3, may extend anteriorly as discontinuous cingulum to base of mesostyle; entostyle of M3 extending nearly continuously around base of protocone to unite with anterior cingulum; double-rooted P1 separated from C1 and P2 by diastemata; P4 with low, inflated, strongly inflected paraconid, moderately developed metaconid, postmetacristid abutting entoconid, hypoconid only weakly differentiated from postproto- cristid, elongate talonid basin open posteriorly; lower molars with arcuate connection between postprotocristid and postmetacristid abutted by preen- tocristid, strong ectostylids, moderately prominent anterior cingulum ex- tending far onto anterlabial face of protoconid; “Dorcatherium fold” extending posteriorly from metaconid of some M2 and most M3; hypoconulid of M3 U- or hook-shaped; M3 entoconulid low, straight to moderately sinuous crest that may consist of several discrete cuspules.