Vera Eisenmann

Skull proportions and size of the pre-orbital bar

lundi 31 mai 2010

Skull proportions and size of the preorbital bar (32)

1. Compared to many other ancient Northamerican equids (SD-2) Scatter diagram 2, all ‘typical’ Cormohipparion A and B (morphs 1) have a longer bar (32) relative to the length of the NIN (30).

2. The separations is, however, not so sharp (SD-3) when other morphs A and B are plotted :

- the skull from June Q. 613-150 (A-7) occupies an intermediate position between Cormohipparion A and B ;

- the skull 107764 from Trail Side Kat (B-2) plots close to Leptarchus 108644 (A-7) ;

- Cormohipparion goorisi 69600 is not very far from the ‘small 32’ group.

3. The next scatter diagram (SD-4) shows the overlap between Cormohipparion A and all other Group A skulls, including those without POF.

titre documents joints

Scatter diagram 4

31 mai 2010
info document : Excel
75.5 ko

Scatter diagram 3

31 mai 2010
info document : Excel
81 ko

Accueil | Contact | Plan du site | | Statistiques du site | Visiteurs : 530 / 15627

Suivre la vie du site fr  Follow site activity Equidae tridactyles (Hipparions sensu lato)  Follow site activity Northamerican archaic skulls, mandibles, and (...)  Follow site activity Size of Pre-orbital bar (32)   ?

Site réalisé avec SPIP 3.0.21 + AHUNTSIC

Creative Commons License