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


Ph III, System of measurements

Friday 27 March 2009
TABLES OF MEASUREMENTS A dorsal length (1’) is occasionally added to the anterior length (1) or replaces the plantar length (2).


Ph II, System of measurements

Friday 27 March 2009
TABLES OF MEASUREMENTS Occasional additional measurement "7": distal articular depth.


Differences between anterior and posterior Ph I

Friday 27 March 2009
The differences are particularly clear on the illustrated pair of phalanges (BO 89482, HP 35) and on most first phalanges of E. hemionus. – In the same animal, first anterior phalanges are almost always longer. – On the posterior Ph I, the distal supra-articular tuberosities are closer to (…)


PhI, System of measurements

Friday 27 March 2009
TABLES OF MEASUREMENTS Occasional additional measurement "15": distal articular depth.


Radius, System of measurements

Friday 27 March 2009


Humerus, System of measurements

Friday 27 March 2009


Scapula, System of measurements

Friday 27 March 2009
Pelvis: one single measurement - the antero-posterior diameter of the cotyle - is listed at the end of the Scapula tables of measurements.


Mandibles, System of measurements

Friday 27 March 2009
Mandibule, Système de mesures 1. Greatest length 2. Mandibular angle radius 3. Diastema 4. Length of P2-P4 4 bis. Length of M1-M3 5. Length of P2-M3 6. Symphysis length 7. Breadth at the posterior borders of I3 8. Height of ascending ramus 9. Height in front of P2 10. (…)


Skulls, System of measurements

Friday 27 March 2009
SKULL SYSTEM OF MEASUREMENTS Occlusal, dorsal, and profile views of an Equus skull. Occasional additional measurements: breadth of the post-orbital constriction (RPO, 34) and distance between anterior borders of P2 and orbit (P2-Orbite, 33).


Metapodials, System of measurements

Tuesday 24 March 2009
MC III = Third metacarpal, MT III = Third metatarsal. TABLES OF MEASUREMENTS A medial length 2’ may replace or be added to the lateral length 2. Other measurements may be added for the MT III: proximal articular depth "6 art." et proximal maximal depth "6 max".

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