Accueil > Equidae tridactyles (Hipparions sensu lato) > Northamerican archaic skulls, mandibles, and metapodials
Craniological definitions of Groups A and B, and of Cormohipparions
lundi 31 mai 2010
Craniological definition of Group A versus Group B
The first scatter diagram (SD-1) shows that Group A is characterized by a short naso-incisival notch (NIN=30), Group B – by a long NIN relative to the length of the cheek (31).
Craniological definition of Cormohipparions versus other archaic skulls
Cormohipparions (SD-2) are characterized by a long preorbital bar (32) relative to the NIN (30).
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Scatter diagram 1
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Scatter diagram 2
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