Véra Eisenmann

Skull-Metapodials Correlations

samedi 31 décembre 2016

Basilar Length (BL) and Metapodial articular and supra-articular breadths (MC10, MC11, MT10, MT11)


It may be useful to know what metapodials are likely to belong with a given size of skull. Figure 1 shows how distal breadths of MC and MT are related to cranial basilar lengths on extant Equus. In most Asinines, Hemionines, Mountain Zebras, and Grevy’s Zebras the proportions are roughly similar. Most Przewalski horses and Plain Zebras have relatively wider metapodials. All data for each group may be found in corresponding sheets of Table 1.

The sheets of Table 2 show separatedly the proportions for basilar lengths and MC 10, MT 10 (distal supra-articular breadths), MC 11 and MT 11 (distal articular breadths).

Differences between Plain zebras and Przewalski horses on one side and the rest of extant forms are particularly clear for MT 11. It is not the first time that a general resemblance is found between Caballines and Plain zebras (Eisenmann V. 2006. Pliocene and Pleistocene Equids : Paleontology versus Molecular Biology. In : Kahlke, R.-D., Maul, L. C. & Mazza, P. (Eds.) : Late Neogene and Quaternary biodiversity and evolution : Regional developments and interregional correlations. Proceedings volume of the 18th International Senckenberg Conference (VI International Palaeontological Colloquium in Weimar), 25th-20th April 2004. Courier Forschungsinstitut Senckenberg (CFS), 256:71-89, 21 figs, 2pls.).

Documents joints

Table 3 Supra-articular breadths versus Basilar lengths in extant Equus and some Allohippus

8 mars 2021
info document : Excel
28.6 kio

Table 2 Cranial-Metapodials corelations

31 décembre 2016
info document : Excel
76.7 kio

Table 1. MC and MT distal breadths and Basilar lengths

31 décembre 2016
info document : Excel
154.7 kio

Accueil | Contact | Plan du site | | Statistiques du site | Visiteurs : 4571 / 10462127

Suivre la vie du site fr  Suivre la vie du site Tools (English)  Suivre la vie du site Various Tools and Notes (English)   ?

Site réalisé avec SPIP 4.2.11 + AHUNTSIC

CC BY-SA 4.0