. Bulletin of the British Museum (Natural History), Geology. Uppers. Text-figure 63 Scatter diagrams of length (1) against width (w) in upper and lower cheek teeth of species of Haplobunodon. Measurements in millimetres. Width of lower molariform teeth is talonid width. O = H. venatorum sp. nov. from Creechbarrow; ? = H. aff. venatorum from Mormont; O = H. lydekkeri Stehlin from Hordle Cliff. Symbols solid above = P4; solid on left = Ml; solid on right = M2; completely solid = M3; outline = Ml/2. Lines join teeth of one individual. M37528 has all the distal half and the lingual edge broken awa
. Bulletin of the British Museum (Natural History), Geology. Uppers. Text-figure 63 Scatter diagrams of length (1) against width (w) in upper and lower cheek teeth of species of Haplobunodon. Measurements in millimetres. Width of lower molariform teeth is talonid width. O = H. venatorum sp. nov. from Creechbarrow; ? = H. aff. venatorum from Mormont; O = H. lydekkeri Stehlin from Hordle Cliff. Symbols solid above = P4; solid on left = Ml; solid on right = M2; completely solid = M3; outline = Ml/2. Lines join teeth of one individual. M37528 has all the distal half and the lingual edge broken away. It resembles M37712 in what remains of the cingula, although the parastyle appears more weakly crested and it is less worn. A very worn right P4 of Haplobunodon from Mormont (LGM 9157: LM 797, figured Stehlin, 1908: pi. 13, fig. 36) resembles M37712 except in that it is slightly larger, has more papillate cingula and the ectocingulum is more continuous. M'~2: Two preultimate molars which were found in the same bag of matrix, and whose interstitial facets match (M37529) are the only ones identified with certainty as being either tooth. M2 is larger than M1 and less worn. The ectocingulum is so weak on M2 that it is nearly missing (M1 is abraded in this area). The lingual cingulum in both is restricted to a short stretch between the protocone and metaconule. M37713 is broken but almost unworn, has a small ?hypostyle at the distal end of the postmetaconule crista, an almost complete cingulum round the metaconule and a low ridge in the valley, between the protocone and metaconule, which may represent a prehypocrista. Of three M1/2s of Haplobunodon from Mormont (figured Stehlin, 1908: pi. 13, figs 16, 36 and 41) the last has thin enamel and is low-crowned, and is thus here reidentified as a DP4. Of the remaining two, LGM 9166: LM 852 is the same length but slightly broader than the M37529 M1 and has an almost complete ectocingulum; and LGM 9146: LM 854 is larger in both dimension
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