The scatter diagram SD-6 shows that (as far as I know) all Old World Hipparion skulls belong to Group B except H. prostylum (Lubéron LY 592) which has the same proportions as Group A-8 ( Ratio diagram A-8 and H. prostylum). – H. hendeyi (Langebaanweg E 22187), although larger, resembles (…)

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Chronology (Remarks)

Thursday 3 June 2010

From the chronology of the sites (probably outdated table), it appears that the Group A is very old: Thomson, Echo Quarry, Trinity River. Even the brachyodont Mesohippus, Miohippus (Meso-Mio), Hypohippus, Megahippus and Parahippus (Hypo-Mega-Para) have the same shortness of the naso-incisival (…)

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Correlation between length of upper P2-M3 and size of the bar (32) (Remarks)

Wednesday 2 June 2010

The correlation between length of the cheek teeth P2-M3 and preorbital bar length (Scatter diagram 5) does not follow the same regression line for Cormohipparion (all morphs) and other archaic Northamerican equids.

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Lack of relation between the main axial skull proportions and the pre-orbital bar (Remarks)

Wednesday 2 June 2010

It seems that the main axial proportions of the skull are independent from the existence and/or type of POF. – For instance, on the ratio diagram of Cormohipparion A (A-1), the skull 42449 from Kepler looks like a typical Cormohipparion A although it has no POF. – The ratio diagram A-2 shows (…)

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