. A history of British fossil mammals, and birds . Base of skull of thick-toothed Grampus. Fen, Lincohishire, 524 PHYSETERID^. CETACEA. PHYSETERIDJE. Fi,,. Fossil tooth, i nat. size, of Cachalot, newer pliocene, Essex. PHYSETER MACROCEPHALUS. Cachalot, orSperm Whale. Cachalof, OwEN, Report of British Association, 1842, p. 18. The evidence of the existence of the Great SpermWhale, or Cachalot, in European seas at the period whenthe mammoth and other now extinct mammalia trod theadjoining shores, is precisely of the same nature as thatpreviously adduced for the contemporaneous existence of
. A history of British fossil mammals, and birds . Base of skull of thick-toothed Grampus. Fen, Lincohishire, 524 PHYSETERID^. CETACEA. PHYSETERIDJE. Fi,,. Fossil tooth, i nat. size, of Cachalot, newer pliocene, Essex. PHYSETER MACROCEPHALUS. Cachalot, orSperm Whale. Cachalof, OwEN, Report of British Association, 1842, p. 18. The evidence of the existence of the Great SpermWhale, or Cachalot, in European seas at the period whenthe mammoth and other now extinct mammalia trod theadjoining shores, is precisely of the same nature as thatpreviously adduced for the contemporaneous existence ofthe Narwhal, viz., the discovery of a fossil tooth, absorbentfrom the loss of animal matter, and with its substanceseparating into concentric layers, in the superficial depositsnear the coast of Essex. Fig. 217 gives a side-view ofthis tooth, which is now in my possession, and fig. 218is a view of a longitudinal section of a recent Cachalotstooth, to show the characteristic proportions of c, thecement; d, the dentine ; and o, the osteodentine, whichsubstances enter into the composition of the Cachalots PHY,SETER MACROCKPHALUS. 521 tootli. Satisfactory evi
Size: 2613px × 956px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookaut, bookcentury1800, bookdecade1840, booksubjectpaleontology
