| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Heptacodon occidentale
Taxonomy
Anthracotherium occidentale was named by Osborn and Wortman (1894).
It was synonymized subjectively with Anthracotherium curtum by Hay (1902); it was recombined as Heptacodon occidentale by Macdonald (1956); it was recombined as Heptacodon occidentalis by Scott (1940), Prothero et al. (2022).
It was synonymized subjectively with Anthracotherium curtum by Hay (1902); it was recombined as Heptacodon occidentale by Macdonald (1956); it was recombined as Heptacodon occidentalis by Scott (1940), Prothero et al. (2022).
Entered
by J. Alroy on 2003-01-23
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Anthracotherium occidentale Osborn and Wortman p. 222 |
| 1940 | Heptacodon occidentalis Scott p. 483 |
| 1940 | Heptacodon quadratus Scott p. 489 figs. Plate LI, Fig. 3 |
| 1956 | Heptacodon occidentale Macdonald p. 632 |
| 2022 | Heptacodon occidentalis Prothero et al. p. 341 |
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.
†Heptacodon occidentale Osborn and Wortman 1894
show all | hide all
Invalid names: Heptacodon quadratus Scott 1940 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. R. Macdonald 1956 | Small. M3 with reduced metastyle. M1-3 with lingual cingulum missing over protocone and hypocone; cusps low. P4 with well developed lingual cingula; compressed anteroposteriorly ; protocone and paracone well separated, acute, protocone nearly as tall as paracone. | |
| D. R. Prothero et al. 2022 | Smaller than H. curtus and H. gibbiceps and all other species of the genus. The M1-3 has a lingual cingulum over the protocone and hypocone; cusps are low-crowned. P4 has a well-developed lingual cingulum, is compressed antero- posteriorly, and its protocone and paracone are well separated, acutely pointed, and the protocone is nearly as tall as the paracone (modified from Macdonald, 1956, p. 632). |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Lillegraven 1979, Kron and Manning 1998, Hendy et al. 2009, Nowak 1999 | |||||