Bulletin of the Geological Society of America . Ornitholestesand also of Ornithomimus in some respects. The skull, as in all Coeluro-sauria, is much more primitive than in the Megalosaurid^, as is seenfrom the base of the skull, the palate, the temporal openings, and thelarge orbits. The vertebra from the English Wealden Calamospondylus foxi, byLydekker, is a coelurid, and the sacral remains from the same horizon,which Seeley described as Thecospondylus daviesi, seem to me ratherdifferent from the other species of that (so-called) genus. I thereforepropose the new generic name Tliecoccelurus.
Bulletin of the Geological Society of America . Ornitholestesand also of Ornithomimus in some respects. The skull, as in all Coeluro-sauria, is much more primitive than in the Megalosaurid^, as is seenfrom the base of the skull, the palate, the temporal openings, and thelarge orbits. The vertebra from the English Wealden Calamospondylus foxi, byLydekker, is a coelurid, and the sacral remains from the same horizon,which Seeley described as Thecospondylus daviesi, seem to me ratherdifferent from the other species of that (so-called) genus. I thereforepropose the new generic name Tliecoccelurus. More satisfactory are the remains of Aristosuchus pusillus (Seeley),also from the Wealden of the Isle of Wight. The vertebrae, pubis, andclaw show this specimen to be a true coelurosaurian. The claw described by Dollo as Megalosaurus lonzeensis, from the 456 F. vox HUEXE CARNIYOEOUS SAURISCHIA IX EUROPE Senonian of Namur, and the femur described by Seeley as Megalosaurushredai, from the Maestricht beds, I consider ornithomimids. GENETIC SCHEME. Figure 3.—Genetic Scheme Among the extraeuropean skeletons Janeneschs Elaplirosaurus bam-hevgi, from the Tendaguru Ivimmeridgian, also belongs to the Coeluro-sauria. HABITS OF THE ^lEGALOSAURID^ 457 The American Morrison genus Ceratosaurus lias also been recognized(the evidence is given elsewhere) as a coelnrosaurian, but resembling insome respects the Megalosauridae. Habits of the Megalosaurid^ I have discussed at length the phylogenetic and biological features inthe paper mentioned above. For the former I give only a diagram andfor the latter the following results: The small fore limb of the Megalosauridse, especially of the latestforms, and of the Deinodontidae, with the large manus and enormousclaws, which was no longer able to reach the mouth, could not have func-tioned in holding the prey or in tearing it to pieces. The hind limb,together with the mouth, must have been used for this purpose. Thefore limb was doubtless useful in t
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