Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Arca (Scapharca) mediaimpressa was named by Clark (1918). Its type specimen is UCMP 11174 and is a 3D body fossil. Its type locality is UCMP loc. 1131, Walnut Creek, which is in an Oligocene marine horizon in California.
It was recombined as Anadara (Anadara) mediaimpressa by Reinhart (1943) and Moore (1983).
It was recombined as Anadara (Anadara) mediaimpressa by Reinhart (1943) and Moore (1983).
Sister species lacking formal opinion data
A. burnesi, A. chilensis, A. clathrata, A. dameyi, A. delandensis, A. hypomela, A. improcera, A. larkini, A. natalensis, A. philippiana, A. rectangularis, A. setoensis, A. tarponensis, A. turoniensis, A. watanabei, A. microtera, A. kogachiensis, A. chavezi, A. guajirensis, A. suzukii, A. tectumcolumbae, Arca montensis
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.
†Anadara (Anadara) mediaimpressa Clark 1918
show all | hide all
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
Source: g = genus, f = family | |||||
References: Mikkelsen and Bieler 2008, Sanchez Roig 1926 |
Age range
Maximum range based only on fossils: Chattian or 28.10000 to 23.03000 Ma
Minimum age of oldest fossil (stem group age): 23.03 Ma
Minimum age of oldest fossil (stem group age): 23.03 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Oligocene | USA (California) | Arca mediaimpressa (122273) | |
Chattian | Mexico (Baja California Sur) | Arca mediaimpressa (43805) |