id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
26542	Wortman, Jacob Lawson	On The Affinities of Leptarctus primus of Leidy American Museum of Natural History, Vol. VI, Article VIII, pp. 229-331.			.txt	text/plain	923	63	72	_On the Affinities of Leptarctus primus of Leidy._ Article VIII.--ON THE AFFINITIES OF LEPTARCTUS PRIMUS OF LEIDY. =Leptarctus primus= _Leidy_. The first premolar is not preserved, but its alveolus indicates that it was a single-rooted tooth, placed behind the canine after the to these cusps a distinct basal cingulum, most prominent in the region the third premolar the posterior cusp is much better developed, and deep and prominent, and the coronoid is high and broad. The jaw of _Leptarctus_ differs from that of _Cercoleptes_ in the extent; the condyle is not placed so high; the angle is elevated above but differs from that of _Leptarctus_ in having an external groove as premolars in the lower jaw; the middle one, however, has only a single cusp upon the crown, whereas _Leptarctus_ has two. jaw, the reduction of the number of premolars, the reduction in size	./cache/26542.txt	./txt/26542.txt