1880. ] Geology and Paleontology. 303 
teryx, which was described by Owen, and a restoration of it is to 
be found in several of the recent manuals of Geology. ore re- 
cently, M. Haberlein, Jr., has found in the same place another 
slab containing a complete and most perfect specimen of Archzop- 
teryx. The examination of that specimen modified some pre- 
fingers are long, slender and provided with sharp claws. The wing- 
feathers (remiges) are attached ali along the outer side of the arm 
and hand; had ‘they not been preserved, no one would have sus- 
pected, from the examination of the skeleton alone, that the ani- 
mal was winged. The remiges do not overlap each other; the 
proximal end of the shaft is covered with down; the outline of 
the wings is rounded like that of the hen. The head, neck, chest, 
ribs, tail, thoracic girdle, and front limbs of that fossil are charac- 
teristically reptilian; the pelvis was also probably more reptilian 
than avian. On the contrary, the legs are bird-like; they re- 
semble most those of the falcon, inasmuch as they are covered 
with feathers. To every caudal vertebra was attached a pair of © 
lateral quills. The remainder of the body was evidently naked 
and featherless, with perhaps the exception of the base of the 
neck, where there are indications of a collar of feathers like that 
of the condor. 
Karl Vogt, to whom science is indebted for several of the fore- 
going facts, says that it is superfluous to discuss the question as 
to whether the Archzopteryx is a bird or a reptile. It is neither; 
it is an intermediate type by itself, and confirms the views of 
uxley, who classes together the birds and reptiles, under the 
name of Sauropsida, as one of the great divisions of vertebrates. 
_ Tue Manti Bens or Urau.—lIna previous number (May, 1879) 
of this journal I showed that the palzontological evidence is op- 
posed to the identification of the “ Amyzon” beds of Nevada and 
Colorado with the Green River formation, and that the former are 
probably of later origin. There is, however,a series of calcareous 
and silico-caleareous beds in Central Utah, in Sevier and San 
Pete counties, which contain the remains of different species of 
vertebrates from those which have been derived from either the — 
Green River or Amyzon beds. These are Crocodilus, sp., Clastes 
cuneatus Cope, and a fish provisionally referred to Priscacara 
under the name of P. testudinaria Cope. There is nothing to de- 
termine to which of the Eocenes this formation should be referred, 
but it is tolerably certain that it is to be distinguished from the 
Amyzon beds. In its petrographic characters it is most like the 
Green River, as it consists in large part of shales. The lamine_ 
are generally thicker than those of Green and Bear River. The 
genera Crocodilus and Clastes have not been found heretofore in 
