[Véra Eisenmann]

Véra Eisenmann

Les amateurs de Chevaux, curieux de leur évolution, trouveront ici quelques articles publiés à leur intention dans la rubrique « Diffusion des connaissances ».

Toutefois la majeure partie du site, toujours en construction, est destinée Ã des spécialistes et fournit des informations (sytème de mesures, mesures, illustrations, photographies, commentaires, bibliographie) concernant l’ostéologie des Equidés. Pour le moment, c’est surtout les Equidés actuels et quelques Equus fossiles (Equus, Allohippus, Plesippus) qui sont documentés.
En ce qui concerne les Hipparions au sens large, mes données sur les formes d’Amérique du Nord (Merychippus, Cormohipparion, etc.) sont disponibles (en anglais) ainsi que celles sur certains Hipparions de l’ex-Union Soviétique, de France et de Grèce.

Mode d’emploi.

Les numéros (1, 2, 3, etc.) dans les tableaux font référence à des mesures décrites dans les rubriques « Outils Système de mesures pour les os et les dents d’Equus (et d’Hipparions) ». Chaque os est figuré avec les légendes correspondantes, mais il faut cliquer sur les vignettes pour que le dessin apparaisse en taille normale.
La rubrique « Outils » contient aussi des explications pratiques concernant des méthodes d’étude (diagrammes de Simpson, estimations de hauteurs au garrot, différenciation des premières phalanges antérieures et postérieures, etc.).

WELCOME.

Most of this site is, and will be, devoted to equids from Merychippus to extant Equus. The information (metric data, photographs, bibliographic references) is given in order to help research specialists or students with their work. Some publications (in Â« Diffusion des Connaissances Â ») are intended for a broader public.
The main linguage of this site is French but many articles were translated in English (in particular those in Â« Tools Â » concerning methods of measurements).

Instructions for use.

Numbers (1, 2, 3, etc.) inside the tables refer to measurements described in Â« Tools - System of measurements for Equus (or Hipparion) bones and teeth Â » where corresponding illustrations and captions may be found for each bone (you have to click on the reductions to make them appear full-size).

The rubric Â« Tools Â » contains also practical explanations of techniques such as Simpson’s ratio diagrams, or Â« recipes Â » for calculating the withers height or for differenciating anterior and posterior phalanges.

Articles les plus récents

Monodactyl Equids from Konso, Interval 5

mardi 3 octobre 2017

Interval 5, KGA 12, around 1.3 My old Metacarpals Three specimens (Fig. 12) have relatively flat and wide diaphyses, wide suptra-articular breadths and deep keels.. Metatarsals They are robust, with wide suptra-articular breadths, and deeper diaphyses than most of Konso metapodials. (…)

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Monodactyl Equids from Konso, Interval 4 or 5

mardi 3 octobre 2017

Interval 4 or 5, KGA 7/8 localities Cranium The data (Table A) and photographs of the cranium KGA 8-374 were kindly communicated by Dr Hideo Nakaya (Fig. 17). The cranium (Basilar Length : 529mm) is about the size of E. grevyi, complete, and belonged to an adult male. The cheek (measure (…)

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Monodactyl Equids from Konso, Interval 6

mardi 3 octobre 2017

Interval 6, KGA 20, around 1 My old There is just one Talus resembling a large, fragmentary specimen from Olduvai Bed III-IV (Fig. 25).

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Monodactyl Equids from Konso, Discussion

mardi 3 octobre 2017

Discussion Gen Suwa et al., 2003 distinguish an earlier fauna, with endemic bovids, prior to 1.7 Ma, followed by â€œan influx of external elementsâ€¦most likely related to a general East African trend of climatic dryingâ€ , resulting in â€œthe post-1.5 Ma characterized by newly occurring taxa (…)

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Monodactyl Equids from Konso, Conclusions

mardi 3 octobre 2017

Conclusions The material from Konso comprises one beautiful cranium and many limb bones most of which are unfortunately fragmentary. The whole is not homogeneous. Most limb bones suggest the existence all through the sequence of a robust Equus. Only those from Interval 5, KGA 12 have (…)

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Ternifine PH II

mardi 25 juillet 2017

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Monodactyl Equids of East Turkana : Tables

mercredi 19 juillet 2017

Methods of measurements may be found at this web side inside the chapter "Tools".

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Summary

mercredi 19 juillet 2017

1. In East Turkana, at Koobi Fora, inside levels about 1.9 My old, were found remains of a very large Allohippus : A. koobiforensis. The patterns of its upper and lower cheek teeth were different from usual Allohippine patterns. At the same time there lived at Koobi Fora a smaller monodactyl (…)

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Equus cf. burchelli from MA and MC zones

mercredi 19 juillet 2017

Tibia KNM ER 1277 is a perfectly preserved Tibia (Fig. 59, 60) resembling a large E. burchelli. Fig. 59 Fig. 60 â€œAssociatedâ€ First Phalanges The association of KNM ER 2678 Ph1 (MC zone, Sub Chari, Area 6 A) is certainly wrong (Fig. 61). In an Equus individual, Anterior Ph1 are never (…)

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Equus from Galana Boi

mercredi 19 juillet 2017

Associated Upper and Lower Cheek teeth KNM ER 4055, Galana Boi, (Fig. 58). The pattern of the upper cheek teeth is compatible with extant Equus burchelli and Equus grevyi. The size is intermediate. The lower premolar has a very high stem and reminds of Asses and some teeth from Garba IV at (…)

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