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Taxonomy
Acila (Truncacila) princeps was named by Schenck (1943) [TYPE LOCALITY: CAS 69075, west side San Joaquin Valley, northern California (Late Campanian-Early Maastrichtian). TYPE REPOSITORY: CAS, California.]. Its type specimen is CAS 69075 and is a 3D body fossil. Its type locality is LSJU 2372, which is in a Campanian/Maastrichtian marine sandstone in the Moreno Formation of California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Acila (Truncacila) princeps Schenck pp. 63-66 figs. pl. 8, figs. 1-4 |
| 2006 | Acila (Truncacila) princeps Squires and Saul p. 98 |
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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.
†Acila (Truncacila) princeps Schenck 1943
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Mikkelsen and Bieler 2008 | |||||
Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Campanian - Maastrichtian | USA (California) | Acila princeps (type locality: 206374) | |
| Maastrichtian | Mexico | Truncacila princeps (1372) | |
| Maastrichtian | USA (California) | Acila princeps (185632) | |
| Early/Lower Maastrichtian | USA (California) | Acila princeps (66683) |