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Amérique du Nord, Amerhippus
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Amerhippus leoni and "Equus conversidens" (Amérique du Nord, Amerhippus)
Tuesday 1 October 2013
"Equus conversidens" group
The type upper cheek teeth of E. conversidens Owen 1869 figured correctly by Hibbard (1955) are so close in morphology to those usually referred to E. semiplicatus (Fig.1) that one may wonder if they do not belong to the same species. Since there are no associated (…)
A. fraternus et al., Appendix (Amerhippus fraternus and related species)
Tuesday 7 May 2013
1. Correlation between cranial diastema (6) and cranial muzzle length (5).
From the diastema lengths given by Hulbert it is possible to estimate the muzzle lengths using a regression calculated on extant E. caballus (Fig.A).
2. Correlation between mandibular diastema (3) and mandibular muzzle (…)
A. fraternus et al., tables (Amerhippus fraternus and related species)
Tuesday 7 May 2013
A. fraternus et al., diagrams (Amerhippus fraternus and related species)
Tuesday 7 May 2013
A. fraternus et al., photographs (Amerhippus fraternus and related species)
Tuesday 7 May 2013
Amerhippus fraternus et al. (Amerhippus fraternus and related species)
Tuesday 7 May 2013
Cedar Meadow Spring (Itchetucknee), Rancholabrean
1. Accepting the Rancholabrean cranium from Cedar Meadow FAM 116143 (Fig.1) as the lectotype of E. fraternus, the following observations can be made.
– The specimen lacking part of the occiput, there is no saying if the vertex length was, as (…)
Amerhippus fraternus and related species, Introduction (Amerhippus fraternus and related species)
Tuesday 7 May 2013
This article is not intended to make clear the extremely confused and confusing taxonomy of "Equus fraternus" and of actually or allegedly related equids. It intends only to bring together data and photographs collected in the bibliography or by myself as well as tentative reconstructions of fossils and biometrical and morphological comparisons. Although resemblances do not guarantee conspecificity, I believe they must be pointed.
Amerhippus occidentalis (Amérique du Nord, Amerhippus)
Monday 11 March 2013
Rancho La Brea et MacKittrick, Californie : E. occidentalis
E. occidentalis, Leidy, 1865, Proc. Acad. Nat. Sci., 94. California. “Types†are from Tuolumne Co. (aurifere deposits) and tars of Buena Vista Lake.
SKULL
Fig.1 - Cranium of A. occidentalis, AMNH 14396, Rancho La Brea.
The (…)
Amerhippus and Caballines: Cranial differences (Amérique du Nord, Amerhippus)
Monday 11 February 2013
