Our planet, its past and future; or, Lectures on geology . Turrilite costatus. Bcaplutcs Ivonii. the Lit in tarris, a tower, may be described as anammonite twisted in a towerdike form. The scaphiie(Fig. 37), from the Latin scnphn, a skift, t^nfl t^anc/hcercis, curve horn (Fig. 38), are ammonites Aviththe shell partly uncoiled. The crioceras, rams horn LKCTURKS ON (:i:OL()(;v. •JM (Fig. 39), js all ainmoiiito, with a space betwoun (liowhorls. 1 have seen tiie children in Texas phiying with Fi-. large ammonites, whicli they tniiidled to seecould make them go farthest, just as hoys do withThe hac


Our planet, its past and future; or, Lectures on geology . Turrilite costatus. Bcaplutcs Ivonii. the Lit in tarris, a tower, may be described as anammonite twisted in a towerdike form. The scaphiie(Fig. 37), from the Latin scnphn, a skift, t^nfl t^anc/hcercis, curve horn (Fig. 38), are ammonites Aviththe shell partly uncoiled. The crioceras, rams horn LKCTURKS ON (:i:OL()(;v. •JM (Fig. 39), js all ainmoiiito, with a space betwoun (liowhorls. 1 have seen tiie children in Texas phiying with Fi-. large ammonites, whicli they tniiidled to seecould make them go farthest, just as hoys do withThe haculite is very abundmt in fi--m the cretaceous beds of Colorado,where it is styled a fossil-fish. Itis sometimes found several feet inlength. The cretaceous beachesmust have presented a handsomeappearance strewed with theseenormous and beautiful shells. rill • w II 11! Criociras. J he ocean itsclr could not prol)al)ly be better described than in the worths of Percival whichhoops.


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Keywords: ., bookcentury1800, bookdecade1880, bookidourplanetits, bookyear1881