| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eoprotrachyceras subasperum
Taxonomy
Trachyceras subasperum was named by Meek (1877) [Trachyceras judicarium var. subasperum]. It is a 3D body fossil. Its type locality is Cottonwood Canon, West Humboldt Range, which is in an Illyrian/Fassanian carbonate limestone in Nevada.
It was recombined as Trachyceras (Protrachyceras) subasperum by Smith (1914); it was recombined as Eoprotrachyceras subasperum by Tozer (1980).
It was recombined as Trachyceras (Protrachyceras) subasperum by Smith (1914); it was recombined as Eoprotrachyceras subasperum by Tozer (1980).
Sister species lacking formal opinion data
Synonymy list
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.
†Eoprotrachyceras subasperum Meek 1877
show all | hide all
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 32.0 | |||||
| shell diameter | 1 | 70.0 | |||||
| shell inflation | 1 | 12.5 |
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Fassanian or 241.46400 to 239.48000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Illyrian - Fassanian | USA (Nevada) | Trachyceras subasperum (142621) | |
| Fassanian | USA (Nevada) | Protrachyceras subasperum (143279) Trachyceras subasperum (142672) |