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Mataxa arida
Taxonomy
Mataxa arida was named by Squires and Saul (2003). Its type specimen is LACMIP 12978 and is a 3D body fossil. Its type locality is UCR loc. 8388, Pinyon Ridge, which is in a Paleocene marine mudstone in the San Francisquito Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Mataxa arida Squires and Saul pp. 59 - 60 figs. Figure 4.7–4.10 |
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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.
†Mataxa arida Squires and Saul 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Mataxa with body whorl profile moderately globose, anterior body whorl area constricted, sculpture of closely spaced relatively coarse (for genus) spiral cords, with increased spacing on neck, columella with three folds. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Maastrichtian or 72.10000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | USA (California) | Mataxa arida (185191) |