| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Mononusphaericorhynchus
Taxonomy
Mononusphaericorhynchus was named by Sartenaer (1994). Its type is Leiorhynchus (Leiorhynchus) sartenaeri.
It was assigned to Leiorhynchinae by Sartenaer (1994).
It was assigned to Leiorhynchinae by Sartenaer (1994).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Mononusphaericorhynchus Sartenaer pp. 247 - 249 |
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. †Mononusphaericorhynchus Sartenaer 1994
show all | hide all
†Mononusphaericorhynchus sartenaeri Johnson 1974
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Sartenaer 1994 | Small sized. Subcircular (generally). Strongly
inequivalve (deeply dorsi-biconvex). Subsphaerical, because length, width, and thickness have similar values. Dorsal umbonal region not or slightly projected posteriorly beyond the pedicle valve. Frontal commissure slightly crenulated by the low costae. Sulcus weakly developed and wide, starting at a relatively great distance from the beak. Tongue subrectangular and strongly deflected. Curve of brachial valve, in longitudinal median sections, is one quarter of a circumference. Greatest thickness of brachial valve never at front, but posterior (sometimes very posterior) to it. Width is generally the largest dimension. Low well marked median costae begin near to the beaks. Lateral costae commonly present. Dental plates converging strongly and meeting on the floor of the pedicle valve. Septum blade- to lens(thin)-shaped. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Eifelian - Givetian | USA (Nevada) | Leiorhynchus sartenaeri (94249) |