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 àdes 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 « Diffusion des Connaissances ») 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 « Tools » concerning methods of measurements).

Instructions for use.

Numbers (1, 2, 3, etc.) inside the tables refer to measurements described in « Tools - System of measurements for Equus (or Hipparion) bones and teeth » 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 « Tools » contains also practical explanations of techniques such as Simpson’s ratio diagrams, or « recipes » for calculating the withers height or for differenciating anterior and posterior phalanges.


Most recent articles


Most recent articles


Correlations between skull and mandible dimensions

Thursday 16 April 2009
BASILAR LENGTH AND MAXIMAL MANDIBULAR LENGTH IN ALLOHIPPUS AND EXTANT EQUUS: SKULL-MANDIBLE CORRELATIONS 1. Skull and Mandible lengths For a sample of 375 various extant Equus skulls and mandibles, the correlation is good: R2=0.97. Regressions are: – Basilar length of the skull (1) = (…)


Weight Estimations

Wednesday 15 April 2009
WEIGHT ESTIMATIONS Various attempts are possible, in particular those based on the surface of the upper M1, and on some distal metapodial dimensions. No kind of estimation is really good because species do differ by the relations between their anatomical parts and their weight. This is (…)


Variability Size Index (VSI)

Friday 3 April 2009
VARIABILITY SIZE INDEX (VSI) The Variability Size Index (VSI) is one of the size index scaling techniques used by archeozoologists (Uerpmann 1982, 1986; Meadow 1986, 1999). Using this technique, global size comparisons are possible even of samples of various but fragmentary and not numerous (…)


Tools Introduction

Thursday 2 April 2009

This chapter contains the description of useful "tools" such as Simpson’s ratio diagrams, ways of estimating the height at the withers, etc.



Withers height estimations

Wednesday 1 April 2009
WITHERS HEIGHT The height at the withers of a horse used to be expressed in "hands" (one hand = 4 inches) or in “feet†(one foot = 12 inches), and in "inches". Since one inch = 25,4 millimeters, a horse "21 hands high" or “7 feet high†stands 213, 4 cm at the withers. According to (…)


Simpson’ ratio diagrams

Monday 30 March 2009
INTRODUCTION Simpson’s ratio diagrams (Simpson 1941, Large pleistocene felines of North America. American Museum Novitates, 1136, p.1-27, 11 fig., New York) provide rapid and easy comparaisons, both of size and shape, for a single bone or a group of bones. – The reference is provided by a (…)


Calcaneum, System of measurements

Friday 27 March 2009


Talus, System of measurements

Friday 27 March 2009
TABLES OF MEASUREMENTS An "oblique" length (1’) is occasionally added to, or replaces the greatest length (1).


Tibia, System of measurements

Friday 27 March 2009


Femur, System of measurements

Friday 27 March 2009

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