| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Jiangsudon
Taxonomy
Jiangsudon was named by Metais et al. (2008). Its type is Jiangsudon shanghuangensis.
It was assigned to Diacodexeidae by Metais et al. (2008).
It was assigned to Diacodexeidae by Metais et al. (2008).
Species
J. shanghuangensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Jiangsudon Metais et al. p. 1123 |
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.
G. †Jiangsudon Metais et al. 2008
show all | hide all
†Jiangsudon shanghuangensis Metais et al. 2008
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. Metais et al. 2008 | Upper molars shows a basic tribosphenic pattern and subtriangular outline with central protocone, lacking distinct hypocone and mesostyle; paraconule is higher on the tooth crown and more expanded than the metaconule; protocone is prominent with a narrow labial rib; paracone and metacone are acute and show a distinct rib (more accentuated on the paracone) on their labial face; metacone is more lingual than the paracone; labial cingular shelf is particularly well developed in the parastylar area; there are incipient accessory cusps and spurs on the cingular shelves that are well developed mesiolingually and distolingually; the lingual cingulum is thinner. It differs from other diacodexeids in its large size and in a distinct parastyle on upper molars. It differs from North American antiacodon- tines in the lesser development of conules and the transverse elongation of upper molars. It further differs from Wasatch- ian Hexacodus, Bridgerian Homacodon and Microsus, and Uinta “homacodonts” in the lack of hypocone and the equal development of conules on upper molars. J. shanghuan- gensis differs from European eurodexine dichobunoids in lacking true hypocone, the lesser development of conules, and the presence of a strong parastylar shelf labially. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Nowak 1999, Lillegraven 1979, Carroll 1988 | |||||
Age range: Middle Eocene or 47.80000 to 37.71000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene | China (Jiangsu) | J. shanghuangensis (37493 175842) |