. A history of British fossil mammals, and birds . 3r(l lower molar, recent horse,Nat. size. 3rd lower molar, Equusfossilis, Oreston,Nat. size. the lower molar teeth of the fossil Equus present thesame difference in their narrower transverse diameter:this character is shown in the cut of the grinding surface 888 SOLIPEDIA. Fici. 146. of one of these teeth (fig. 145) from the eavevnoiis fissure,A, at Oreston (fig. 50, p. 132) ; and it is iUustrated bycontrast with the same view of the corresponding lowermolar of a common Horse of about fourteen hands high(fig. 144). Some of the numerous fossil
. A history of British fossil mammals, and birds . 3r(l lower molar, recent horse,Nat. size. 3rd lower molar, Equusfossilis, Oreston,Nat. size. the lower molar teeth of the fossil Equus present thesame difference in their narrower transverse diameter:this character is shown in the cut of the grinding surface 888 SOLIPEDIA. Fici. 146. of one of these teeth (fig. 145) from the eavevnoiis fissure,A, at Oreston (fig. 50, p. 132) ; and it is iUustrated bycontrast with the same view of the corresponding lowermolar of a common Horse of about fourteen hands high(fig. 144). Some of the numerous fossil equine teeth oflarge size, from the cave at Kents Hole, do not manifestthis character ; but the large-sized molar teeth of theHorse, from the newer pliocene blue-clay at Cromer,* areas much narrower transversely, compared with the teeth of the large varieties of theexisting Horse, as are thesomewhat smaller molarsfrom Kents Hole, Kirk-dale, and Oreston. One ofthe Cromer fossil teeth, fromthe lower jaAv, with agrinding surface measuring-one inch f
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Keywords: ., bookaut, bookcentury1800, bookdecade1840, booksubjectpaleontology
