PTERODACTYLES, OR FLYING REPTILES. 



577 



found in all the deposits, from the Lias to the Chalk in- 

 clusive ; with the exception of the "Wealden, in which no 

 traces of Ichthyosauri have been discovered. 



28. Pterodactyles, or Flying Keptiles.* — In this 

 rapid sketch, it will not be necessary to dwell on the first 

 appearance, and subsequent great development of the Lacer- 



Lign. 130. — Skeleton of a Flying Reptile; from Solexhofen. 

 (Pterodactylus crassirostris, Goldfuss. One-third the natural size.) 



tian tribes, through the periods embraced in this retrospective 

 view, as we have already noticed at considerable length the 

 principal extinct saurians whose remains have been dis- 

 interred from the secondary rocks. I pass, therefore, to the 



* Pterodactyles,?. 6. Wing-fingered. — See "Medals of Creation," p. 762. 



