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Eotrinucleus
Taxonomy
Eotrinucleus was named by Zhou and Zhang (1978) [Sepkoski's age data: O Trem-l]. It is not extant.
It was assigned to Trinucleidae by Peng (1992); to Harpetidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
It was assigned to Trinucleidae by Peng (1992); to Harpetidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Eotrinucleus Zhou and Zhang |
| 1992 | Eotrinucleus Peng |
| 2002 | Eotrinucleus Jell and Adrain p. 471 |
| 2002 | Eotrinucleus Sepkoski |
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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
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: Niuchehean or 491.00000 to 486.85000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Niuchehean | China (Hunan) | E. antiquus (107329) |