214 te:^ yeaes' progress in vertebrate paleontology 



posed a classification of the marine turtles. Williston (10) figured and 

 described the hinder limb of Protostega. 



1903 



Andrews and Beadnell (11) described the large Testudo ammon from 

 the Upper Eocene of Egypt. Andrews (12) reported four other fossil 

 turtles from the Fa}iim of EgA^t. Dollo (13) described from the Mid- 

 dle Eocene of Belgium Eochelone brabanfica and discussed the relation- 

 ships and the ph3dogenY of the marine turtles. Eraas (14) described 

 and figured Thalassemys marina from the Upper Jurassic of Wiirttem- 

 berg and expressed his views as to the origin of the turtles. This he 

 found among the Anomodontia. Hay (15) described Prohaeim sciilpta 

 from the Jurassic of Colorado: also (16) two new species of Clemmys 

 from the Tertiary of Oregon. Lorenthey (17) announced as new Tn- 

 onyx cJavatomarginaius and EucJasfes? Voclii, from Hungary. A list of 

 seven Hungarian fossil turtles was presented. 



Osborn (24, 43) placed the Testudinata in his subclass S}mapsida 

 with the Cotylosauria, Anomodontia, and Sauropten^gia. Eabl (18) 

 published observations on the osteology of the turtles and discussed the 

 phylogeny of the group. Von Eeinach (19) presented preliminary de- 

 scriptions of six new species from the Tertiary of Eg}^t. Later (20) 

 complete descriptions and excellent figures of these were furnished, to- 

 gether with a list of known Egyptian extinct turtles. 



Sinclair (16) described SfyJemys caJavei-ensis from the Quaternary 

 of California. De Stefano continued his researches, describing (5) 

 Thalassochelys phosphatica and Gafsachelys pliosphatica from Tunis, 

 probably of the Eocene; also (5) he defended his views regarding the 

 meaning of the alveoles in the supposed dentated trionvchid; also (21) 

 he described the species of Ptychogaster found in the Lower Miocene of 

 France, and discussed the position of the genus in the system. He 

 formed for them the family Ptychogasteridse. Wieland (10) published 

 a note in which he presented a figure of the carapace of Arclielon. 



1904 



Andrews (22) published additional descriptions and illustrations of 

 Testudo ammon, from the Upper Eocene of Eg}qpt. Boulenger (23), 

 in a classification of the reptiles, derived the turtles from the Plesio- 

 saurian stem. Hay (10) described and figured seven species of fossil 

 turtles belonging to the collection at Yale University. Of these four 

 were new; also (24) announced the discovery of skulls of Trionycliidae 



