a E a ee UE S 
ONT A Cae AEA 
1894.] Geology and Paleontology. 797 
genus Sclerocephalus. By removal of the osseous structure, Credner 
obtains beautiful casts of the vascular structures of the teeth. From this 
study Dr. Credner concludes that the large teeth of the Stegocephali 
are formed by the fusion of small teeth, such as are frequently present 
on the palatine and splenial bones of these animals. 
Mesozoic.—The eastern boundary of the Connecticut Triassic is 
defined, according to Messrs. Davis and Griswold, by fault-lines—a 
combination of several intersecting faults, rather than asingle irregular 
fault. The inferred faults may be divided into two sets, those of one 
set trending about north and south, and represented by three members; 
those of the other set trending northeast and northwest, and including 
two members. All five faults are believed to extend beyond the parts 
of the border line that they determine into the area of the crystalline 
or Triassic rocks. (Bull. Geol. Soc. Ann., Vol. V, 1894.) 
In a paper in the Journal of the Philadelphia Academy, Prof. Cope 
describes several Pycnodont fishes from the Wichita Cretaceous bed of 
western Oklahoma, and a Lepidotid from the Trinity formation of 
Texas. He also describes part of a tarsometatarse of a bird from a 
probable neocene bed of Vancouver Island, under the name of Cyphor- 
nis magnus. He thinks it is allied to the Pelicans, but the bone is as 
large as the corresponding part of the American Ostrich. 
A collection of Neocomian invertebrates from Kansas yields upon 
examination 17 new and 4rare species. Among them is a large, appar- 
ently nereid, worm, and a well-preserved specimen of Trochus texanus 
Roem. The fossils are described and figured by Prof. F. W. Cragin 
in the Am. Geol., Vol. XIV, 1894. Prof. Cragin also reports from the 
same formation two new reptiles, Pleisiosaurus mudgei and Plesiochelys 
belviderensis ; and three fishes hitherto undescribed, Mesodon abrasus, 
(? Lamna) quinquilateralis and Hybodus clarkensis. "am Ann. Pub. 
Col. Sci. Soc., 1894.) 
Cenozoic.—In the fourth part of the * Materiaux pour l'Histoire 
des Temps Quaternaires,’ MM. Gaudry and Boule describe bones of 
Mammalia from the caves of Gorgas in the Hautes Pyrenées. They 
found there Ursus spelaeus, Crocuta maculata spelaea, and Canis lupus. 
They embrace the opportunity of showing the graduated dentition of 
the Canidae from Canis through Hemicyon and Hyaenarctus, of which 
they give instructive figures. 
