| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Yokoyamaina was named by Hayami (1958) [Sepkoski's age data: J Hett]. It is not extant. Its type is Cyrena elliptica.
It was reranked as Integricardium (Yokoyamaina) by Hayami (1972).
It was assigned to Integricardium by Hayami (1972); to Lahilliinae by Schneider (1995); and to Veneroida by Sepkoski (2002).
It was reranked as Integricardium (Yokoyamaina) by Hayami (1972).
It was assigned to Integricardium by Hayami (1972); to Lahilliinae by Schneider (1995); and to Veneroida by Sepkoski (2002).
Species
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.
G. †Yokoyamaina Hayami 1958
show all | hide all
†Yokoyamaina elliptica Yokoyama 1904
†Yokoyamaina globosa Hayami 1972
†Yokoyamaina hayamii Keen 1969
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: f = family, c = class | |||||
| References: Todd 2001, Aberhan et al. 2004 | |||||
Age range: base of the Hettangian to the top of the Obtusum or 201.30000 to 189.60000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Jurassic | Vietnam (South Viet-Nam) | Integricardium globosum (37217) | |
| Hettangian | Japan (Miyagi) | Integricardium hayamii (39646 40219 40541) | |
| Obtusum | China (Guangdong) | Y. globosa (7785) |