PALAEONTOLOGY. 



57 



PALEONTOLOGY OF THE EOCENE AND 

 OLIGOCENE BEDS OF THE PARIS BASIN. 



{Including a list of the Mollusca.) 



Considered from their palceontological aspect, the Eocene and 

 OHgocene beds of the Paris basin are of the highest possible 

 interest to the student of ahnost every section of organic Hfe, Ver- 

 tebrata, Invertebrata, and Plantse being well represented at different 

 horizons, as we have already seen in dealing with the sub-divisions 

 of the various formations. Within our present limits, it is impos- 

 sible to do more than allude to the salient features of the 

 varied faunas and floras presented to us, and no attempt will be 

 made to deal exhaustively with the subject ; with this exception, 

 that a complete list of the molluscan fauna is appended, to which 

 we shall hereafter more fully refer. 



Taking the fossils in systematic order, we propose to give an 

 outline of the leading features of each class, with references to the 

 principal authorities on the respective subjects. 



Vertebrata. 

 Mammalia. — Mammalian remains are very varied and abun- 

 dant in some of the beds now under consideration, and they have 

 been fully discussed by the following authors : — -Cuvier*, De Blain- 

 villet, P- GervaisJ, Pictet§, Gaudry||. Amongst the characteristic 

 mammalian remains, the following may be cited : — 



Order. 



Lemuroidea. 

 Creodonta. 



Chiroptera. 

 Amblvpoda. 

 Perissodactvla. 



Artiodactvla. 



SiRENIA. 



Carnivora. 



Genus. 



Ad apis 



Pterodon 



Hycpnodon 



A rctoryon 



I 'espertUio 



Corvphodon^ 



Palcvotherium 



Lophiodon 

 Pachynolophus 



Cheer opota m its 



A noplothcrhim 



Xtphodon 



Dkhohirmis 



Halitherium 



Palceonictis 



Species. 

 parisiensis, Cuv. 

 dasyuroides. Gerv. 

 parisiensis, Laur. 

 primcevus, Blain. 

 parisiensis. 

 eoctvnicus, Owen 

 magmim, Cuv. 

 crassum, Cuv. 

 medium, Cuv. 

 minus, Cuv. 

 parisiensis. Gerv. 

 Prevosti, Gerv. 

 Duvali, (Pomel) 

 parisieyisis, Cuv. 

 cotnmiine, Cuv. 

 gracilis, Cuv. 

 leporinus, Cuv. 

 (ribs & teeth). 

 gigantea, Blain. 



Formation. 

 Gypsum. 



Sub. Inf. 

 Gypsum. 

 Plastic Clay. 

 Gypsum. 



Ligfoites, &c. 

 Calc. Gross. 



Gypsur 



Font. Sand. 

 Liofuiles. 



* Cuvier, Reckerck, sur Oss./oss., Paris (1812), and later editions. 



t De Blainville, Ostco. des Matiiiit. rec. etfoss., Paris (1839-1863). 



X Gervais, Zool. et Pai. /ranfaises {i2,ig). 



§ Pictet, T7-aite de Paleont. 



II Gaudry, Enchain, du monde Anim., Paris (1878), &c. 



,, Ancetres de nos Aniiiiaux. 

 ^ For an account of Coryphodon remains, see E. T. Newton, Proc. Geol. .Assoc., vol. 

 viii. (1883), p. 250. 



