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Biseridens
Taxonomy
Biseridens was named by Li and Cheng (1997). It is not extant.
It was assigned to Biseridensidae by Li and Cheng (1997), Li (2001) and Li and Sun (2008); and to Anomodontia by Cisneros et al. (2011).
It was assigned to Biseridensidae by Li and Cheng (1997), Li (2001) and Li and Sun (2008); and to Anomodontia by Cisneros et al. (2011).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Biseridens Li and Cheng pp. 269, 277 |
| 2001 | Biseridens Li p. 47 |
| 2008 | Biseridens Li and Sun p. 380 |
| 2011 | Biseridens Cisneros et al. p. 1605 |
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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
| Reference | Diagnosis | |
|---|---|---|
| J. Li and Z. Cheng 1997 | Primitive herbivorous or omnivorous therapsids with medium sized skull, narrow and short preorbital region, interorbital area depressed with a ridge along mid-line suture of frontals; intertemporal region wider than interorbital one, temporal fenestra larger than orbit; oval pineal foramen especially large, situated on high parietal boss; lateral process of postorbital does not reach to zygomatic arch; a depression indicating origin area of muscle adductor mandibulae externus, present on the posterior portion of postorbital inside the temporal fossa; interparietal narrow and high; opisthotic contacts quadrate;•palatal and pterygoid tuberosities bearing cluster of teeth, but transverse flange of pterygoid lacking teeth; lower jaw articulation posteriorly located and lower than dentition; cheek teeth unique shaped and double rowed on upper and lower jaw; lower formula I3 C1 PC15. |
Measurements
No measurements are available
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| Source: o = order, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988, Benton 1983 | |||||