Eastman: Jurassic Saurian Remains Within Fish. 183 



articles published jointly with I >r. F. P. Moreno. 2 The idea thai 

 some of these creatures found in caverns of Patagonia were stall-fed, 

 being kepi in captivity 1>\ aboriginal inhabitants, received credence 

 through the finding of vegetable fibers resembling chopped ha} in 

 association with their mummified remains. 



Writing in 1900, Nordenskjold, 8 alter an examination of the dung 

 of one of these sloths, announced the following conclusion: "Le 

 contenu des excrements montre que cet animal se nourissail d'herbes 

 el pas de feuilles et qu'il ma\chail el digeraitmal sa nourriture." 

 That tlu- author just quoted does not err on the side of rashness may 

 be judged from the following non-committal remark: "Quant a la 

 quesl ion de >a\ oir si le Glossotherium a ete contemporain de l'homme, 

 je n'ose pas encore repondre d6finitivement." 



Among reptile.-, the most numerous and best authenticated cases 

 where the nature of the food-supply is determinable, either from in- 

 gested prey, or from hard parts, such as scales, teeth, etc., preserved 

 within coprolites, 4 occur within the order Ichthyosauria. The ques- 

 tion as to whether all so-called "embryoes" included within the ab- 

 dominal cavity of Ichthyosaurus are really foetal, or are not in part at 

 least young reptiles that have been swallowed, has been recently 

 discussed by Branca. 5 A similar question in regard to the supposed 

 embryo contained within the body of the type specimen of Compsogna- 

 tlius was raised not long since by Dr. Franz Nopsca. 6 If Marsh's 

 original interpretation of this interesting specimen be set aside, no 

 positive evidence remains that Dinosaurs were viviparous. 



Turning our attention to the class of fishes, instances are known 

 where distinctly recognizable skeletons of bony fishes are preserved 

 within the intestinal tract of fossil sharks. A striking example is 

 that of Carcharias (Scoliodon) in the Bologna Museum. The wonder- 



3 Nordenskjdld, E., La Grotte du Glossotherium (Neomylodon) en Patagonie. 

 Bull. Soc. Geol. France, 1900 [3], vol. 28, pp. 29-32. See also Hatcher, J. B., 

 The Mysterious Mammal of Patagonia. Science, N. S., 1899, vol. 10, pp. 814-815. 



4 For an exhaustive investigation of reptilian coprolitic matter from the Wealden 

 of Belgium one may refer to a contribution l>y M. Bertrand, entitled " Los coprolithcs 

 de Bernissart." M<'m. Musee Roy. Belg. d'Hist. Nat., Vol. I, 1903. 



6 Branca, \V. Two papers published 1907-8 in Abh. Akad. Wiss. Berlin, Phys. 

 Alih. No. 3, and Sitzber. Akad. Wiss. Berlin, pp. 392-6. The latter is entitled 

 " Xachtrag zur I'.mbryonenfrage bei Ichthyosaurus." 



6 Xeues Jahrb. f. Min., 1903, Supplement, vol. 16, pp. 476-494. See also the 

 following: F. v. Huene, " Der vermuthliche Ilaulpanzer des Compsognalhus longipes 

 Wagn." Ibid., 1901, vol. i, pp. 157-160. 



