| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pipestoneia douglassi
Taxonomy
Pipestoneia douglassi was named by Tabrum and Métais (2007). Its type specimen is CM 72589, a maxilla (partial right maxilla with P2–M3.), and it is a 3D body fossil. Its type locality is Pipestone Springs, which is in a Chadronian terrestrial claystone in the Renova Formation of Montana. It is the type species of Pipestoneia.
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Pipestoneia douglassi Tabrum and Métais p. 86 figs. 3, 4 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Pipestoneia douglassi Tabrum and Métais 2007
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Tabrum and G. Métais 2007 | 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. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Webb 1998, Hendy et al. 2009, Lillegraven 1979, Nowak 1999 | |||||
Age range: Chadronian or 37.20000 to 33.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadronian | USA (Montana) | Hendryomeryx sp. (16959 16988 type locality: 17010) |