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Taxonomy
Palaeolama guanajuatensis was named by Dalquest and Mooser (1980). Its type specimen is TMM 41685-11, a tooth (upper third premolar, well preserved except that the roots are broken away), and it is a 3D body fossil. Its type locality is Rancho El Ocote (Basal), which is in a Hemphillian fluvial claystone/sandstone in the Rancho Viejo Beds Formation of Mexico.
It was synonymized subjectively with Hemiauchenia vera by Montellano (1989); it was recombined as Hemiauchenia guanajuatensis by Ruez (2005).
It was synonymized subjectively with Hemiauchenia vera by Montellano (1989); it was recombined as Hemiauchenia guanajuatensis by Ruez (2005).
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Palaeolama guanajuatensis Dalquest and Mooser pp. 18-20 fig. 5 |
| 1998 | Palaeolama guanajuatensis Honey et al. |
| 2005 | Hemiauchenia guanajuatensis Ruez, Jr. p. 742 |
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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.
†Hemiauchenia guanajuatensis Dalquest and Mooser 1980
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. W. Dalquest and O. Mooser 1980 | A tiny camel, approximate!y the size of the modern domestic llama. Differing from Hemphillian and Pleistocene species of Hemiauchenia in smaller size, shorter-crowned teeth, upper P3 with three rather than two roots, and styles of lower molars better developed. Similar to Pleistocene species of Palaeolama in size and basic tooth pattern but styles not as well developed and ectoloph between styles gently convex rather than drawn out into ribs. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: MacFadden and Cerling 1996, Carroll 1988, Nowak 1991, Hendy et al. 2009, Lillegraven 1979, Nowak 1999 | |||||
Age range: Late/Upper Hemphillian or 10.30000 to 4.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Hemphillian | Mexico (Guanajuato) | Palaeolama guanajuatensis (type locality: 18737) |