CHELONIA 



21' 



in the Bridger of Wyoming; and (45) presented a description of 

 Testudo osborniana from the Miocene of Colorado; also (15) he de- 

 scribed Baena callosa from the Judith River beds of Montana. Koch 

 (25) made known Testudo syrmiensis from the Pliocene of Hungary. 

 Loomis (10) published the new species Chrysemys inornata from the 

 Oligocene of South Dakota. Eoger (49, XXXVI) added a lew :\liocene 

 species to his list of 1902. Wieland (10) discussed the Upper Cre- 

 taceous turtles of New Jersey belonging to the genera Adocus, Osteo- 

 pygis, and Propleura. Two new species were described and the family 

 Propleuridae was upheld; later (10) he wrote of the genus Lytoloma, 

 and referred Propleura to the Propleurinse, a subfamily of the Che- 

 loniidae. Williston (26) presented his views regarding the temporal 

 arches of the reptiles. 



1905 



Case (42) gave an extended account of the osteology of the Diadec- 

 tidse, removing the family from the Cotylosauria to the Chelydosauria. 

 He found testudinate characters indicated in the number 18 of pre- 

 sacral vertebrae, in the beginning of a carapace and in the various feat- 

 ures of the skull. Hay (27) discussed the structure and relationships 

 of the Amphichelydia, presenting a plwlogenetic chart and proposing 

 the new name Anaphotidemis for Chelonides of Portis; later (27) he 

 revised the species of Toxoclielys and Porthochelys; also (27) described 

 a new trion3^chid ConchocheJys admirabilis from the Puerco beds of 

 New Mexico. He (24) expressed the view that the turtles had been 

 derived from the Cotylosauria, probably through the Chelydosauria, 

 and not from the Plesiosauria. He (28) dealt in a general- way with 

 the turtles of the Bridger Eocene and their environment. Fritsch and 

 Bayer (29) described, with other reptiles and some fishes, three species 

 of turtles from the Cretaceous of Bohemia, among which was the new 

 species Chelone? regulqris. Hooley (22) announced as new Xiroria 

 headonensis from the Headon beds of Hampsliire, England. Osl)orn 

 (24) retained the Testudinata in his subclass Synapsida in close asso- 

 ciation with the Plesiosauria. Stache (30) described the new Pleu- 

 rodiran Sontiochelys cretacea, from the chalk near Gorz. Wieland pur- 

 sued his studies on the Cretaceous turtles, describing (10) two new 

 species of Agomplius from ISTew Jersey and (10) Toxochelys hanri from 

 Kansas. He placed Toxochelys in the Cheloniidse. Williston (24) ex- 

 pressed his opinion that the turtles and the plesiosaurs are fundamentally 

 separate groups; also that they are widely removed from the Placo- 

 dontia, and probably of cotylosaurian origin. 



