| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eoursivivas
Taxonomy
Eoursivivas was named by Ota (1964) [Sepkoski's age data: K Nc]. It is not extant.
It was assigned to Corbulidae by Hayami (1975); to Myoida by Sepkoski (2002); and to Corbulinae by Squires and Saul (2004).
It was assigned to Corbulidae by Hayami (1975); to Myoida by Sepkoski (2002); and to Corbulinae by Squires and Saul (2004).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Eoursivivas Ota |
| 1975 | Eoursivivas Hayami |
| 2002 | Eoursiviva Sepkoski |
| 2004 | Eoursivivas Squires and Saul p. 119 |
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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2004 | Shell medium, very elongate to subpyriform. Sculpture consisting of subdued, irregular bands. Keel weak to moderately well developed, with groove between it and posterior dorsal margin. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range: base of the Neocomian to the top of the Early/Lower Maastrichtian or 145.00000 to 66.00000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Neocomian | Japan | E. matsumotoi (67158 67160) | |
| Neocomian | Japan (Yamaguchi) | E. matsumotoi (40510) | |
| Neocomian | Japan (Niigata) | E. matsumotoi (40608) | |
| Neocomian | Japan (Kumamoto) | E. matsumotoi (40559) | |
| Early/Lower Albian | USA (Texas) | E. harveyi (84743) | |
| Early/Lower Maastrichtian | USA (California) | E. cultriformis (219070) |