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Riddleria atecensis
Taxonomy
Riddleria atecensis was named by van den Hoek Ostende (2003). It is not extant. Its type specimen is IVAU 51.82 M1 sup. sin., a tooth. Its type locality is Ateca 3, which is in a MN 3 terrestrial horizon in Spain.
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Riddleria atecensis van den Hoek Ostende p. 2 figs. Pl. 1 fig 2 |
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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.
†Riddleria atecensis van den Hoek Ostende 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. W. van den Hoek Ostende 2003 | Middle-sized erinaceids with high cusps connected by sharp ridges. The posterior cingulum of the m1 and m2 is thick and is connected to the posterior arm of the entoconid. The P3 has a lingual flange bearing a well-developed protocone. In occlusal view the outline of the M1 is irregular with clear concave indentations on all sides. The protoconule of the M1 and M2 is well developed. The metaconule is positioned closely to the metacone and possesses a posterior arm. The anterior and posterior cingulums of the M1 and M2 are wide. The M1 and M2 are only slightly wider than they are long. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Nowak 1991, Ji et al. 2002, Carroll 1988, Lillegraven 1979 | |||||