| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eoprotrachyceras americanum
Taxonomy
Trachyceras americanum was named by Mojsisovics (1882).
It was recombined as Trachyceras (Protrachyceras) americanum by Smith (1914); it was recombined as Eoprotrachyceras americanum by Tozer (1980).
It was recombined as Trachyceras (Protrachyceras) americanum by Smith (1914); it was recombined as Eoprotrachyceras americanum by Tozer (1980).
Sister species lacking formal opinion data
Synonymy list
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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.
†Eoprotrachyceras americanum Mojsisovics 1882
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| 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 whitneyi (142621) | |
| Fassanian | USA (Nevada) | Protrachyceras americanum (143042) Trachyceras americanum (142672) |