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Prepidolopidae
Taxonomy
Prepidolopidae was named by Pascual (1980).
It was assigned to Polydolopimorphia by Goin et al. (1999), Goin and Candela (2004) and Chornogubsky et al. (2019).
It was assigned to Polydolopimorphia by Goin et al. (1999), Goin and Candela (2004) and Chornogubsky et al. (2019).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Prepidolopidae Pascual |
| 1999 | Prepidolopidae Goin et al. |
| 2004 | Prepidolopidae Goin and Candela |
| 2019 | Prepidolopidae Chornogubsky et al. |
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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.
Fm. †Prepidolopidae Pascual 1980
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. J. Goin et al. 1999 | The upper molars have stylar cusps B and D only slightly twinned with the paracone and metacone, respectively. The paraconule is vestigial or absent; the metaconule is present but small to moderately developed, without forming a "hypocone." The postparacrista and premetacrista are unconnected but well developed. The lower molars are laterally compressed, especially the anterior ones, with the para- conid very reduced and posteriorly placed; the entoconid is large and anteriorly placed. Some additional features distinguish the more generalized prepidolopids from all other polydolopimorphians: the mandibular ramus is more elongate and does not show hyper- trophied and horizontally implanted incisors; and the upper and lower third premolars are, although large, not as hypertrophied and laterally compressed. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Hopson 1973, Hendy et al. 2009, Clemens 1979, Carroll 1988 | |||||
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | Antarctica | Perrodelphys coquinense (100414) | |
| Eocene | Antarctica | Perrodelphys coquinense (153447) | |
| Lutetian | Argentina (Salta) | Punadolops alonsoi, Coloradolops cardonensis (211419) | |
| Bartonian - Priabonian | Antarctica | Perrodelphys coquinense (173115) | |
| Priabonian | Argentina (Salta) | Prepidolops alonsoi (175809) | |
| Priabonian | Argentina (Catamarca) | Prepidolops alonsoi (41608) | |
| Late/Upper Eocene | Peru (San Martin) | Prepidolopidae indet. (225588) | |
| Rupelian | Peru (Departamento de Ucayali) | Incadolops ucayali (149523) | |
| Rupelian - Chattian | Peru | Prepidolopidae indet. (199562) |