16 SCIENCE PROGRESS 



Finally, a general review of the distribution of Cretaceous 

 dinosaurs by Dr. Lull in the Bull. Geol. Soc. America, vol. xxiii. 

 pp. 208-12, contains a considerable amount of new and interesting 

 information on this subject. 



Two new South African genera and species referred to the 

 Parasuchia (or Thecodontia), as typified by the European 

 Phytosaurus (Belodon), are described by Mr. D. M. S. Watson 

 in the second volume of the Records of the Albany Museum, 

 under the names of Mesosuchus browni and Eosuchus colletti. 

 They appear to be more or less nearly related to the gigantic 

 Erythrosuchus, which, like the two new forms, occurs in the 

 South African Karu formation. 



In an article on the remains of crocodilians from the Upper 

 Tertiaries of Parana, published in vol. xxi. of Anales del Museo 

 National de Buenos Aires, Mr. C. Rovereto refers two out of 

 three species to Alligator, with the proviso that they may 

 belong, as they almost certainly do, to the South American 

 genus Caiman. The third species, which was described by 

 Burmeister as Rhamphostoma neogceum, is referred to the 

 existing Indian genus Garialis, a reference which is less re- 

 markable than it might appear, seeing that crocodilians of 

 the same generic type occur in the Cretaceous and Eocene of 

 Europe. 



From a distributional point of view considerable interest 

 attaches to the description by Prof. L. Dollo, in the science 

 section of the Bull. R. Ac. Set. Beige, 1912, No. 1, pp. 8-9, of a 

 freshwater tortoise of the genus Podocnemis, from the Lower 

 Eocene of the Enclave de Cabinda, Congo State. Although 

 now restricted to tropical South America and Madagascar, the 

 genus is represented in the Eocene of England, India, the 

 Fayum, and the Congo. 



The paddles and other remains of certain North American 

 Jurassic plesiosaurs form the subject of an article by Mr. M. 

 G. Mehl in the Journal of Geology, vol. xx. pp. 344-52. One 

 remarkably fine limb is tentatively assigned to the European 

 genus Murcenosaurus, under the name M. reedii. Possibly the 

 imperfect specimen described by another writer as Plesiosaurus 

 shirleyensis, which certainly does not belong to the genus to 

 which it is referred, may represent an allied type. Finally, 

 the so-called Cimoliosaurus laramiensis is considered to be not 

 improbably referable to Tricleidus, a genus established by 



