(Map [20].)
1. Rockcastle County.—In 1853, Dr. Leidy (Trans. Amer. Philos. Soc., vol. X, p. 331, plates XXXV, XXXVI, XXXVII, figs. 5–8, 17, 19) described under the name Euchœrus macrops, a fine skull of a peccary which had been lying for 47 years in the collection of the society. It had been sent there by Dr. Samuel Brown, of Lexington, Kentucky, and was said to have been found in one of the nitrous caves of that State. The writer is informed by Dr. Arthur M. Miller, Professor of Geology in the University of Kentucky, that it is unlikely that the skull came from any of the caves in the region about Lexington, as he had never heard any of them had been worked for saltpeter. In the Transactions of the American Philosophical Society for 1804 (vol. VI, pp. 235–247) is a paper by Samuel Brown, in which he describes a cave in what is now Rockcastle County. In this and some other neighboring caves were found immense quantities of saltpeter. Probably the skull which Leidy afterward described from this region was brought to light. It appears to have been mentioned by Dr. B. S. Barton as early as 1806 (Phila. Med. and Phys. Jour., vol. II, plate I, p. 158). It is now in the collection of the Academy of Natural Sciences at Philadelphia. It was recognized by Leidy as belonging to Platygonus compressus.
FINDS OF PLEISTOCENE CAMELIDÆ IN EASTERN NORTH AMERICA.
PENNSYLVANIA.
(Map [21].)
1. It is not certain that any fossil camel remains have ever been found in Pennsylvania. In 1899 (Jour. Acad. Nat. Sci. Phila., ser. 2, vol. XI, p. 264, plate XXI, figs. 4, 4a) Cope described Teleopternus orientalis and referred it to the Camelidæ. This was found in the Port Kennedy cave, and whatever its relationships it belongs to the early Pleistocene. Matthew (Osborn, Age of Mamm., p. 469) suggested that its affinities might be with the musk-oxen.
FLORIDA.
(Map [21].)
1. Archer, Alachua County.—In 1886 (Proc. Acad. Nat. Sci. Phila., 1886, p. 12), Dr. Joseph Leidy briefly described three species of the genus Procamelus from materials collected near Archer by Dr. W. H. Dall. The teeth and bones had been found in what has been called the Alachua clays, and were associated with a considerable number of species of vertebrates. The list will be found on page [375], where the Pleistocene geology is considered. The three species of camels were called Auchenia major, A. minor, and A. minimus. They are now referred to the genus Procamelus. In 1896 they were (Trans. Wagner Free Inst. Sci., vol. IV, pp. VII-XIV, 15–61, with plates) described in more detail and illustrated by Leidy and Lucas. The error of calling P. minor by the name P. medius, first introduced by Cope, was followed in the paper just mentioned; and some authors have continued this practice. Dr. W. H. Dall included these camels in his list (Bull. U. S. Geol. Surv. No. 84, p. 129). Authors have in general referred to the Tertiary the deposit which furnished these camels; the present writer believes that the Alachua beds belong to the first glacial stage. The matter is further discussed on pages [376] to [378].
2. Williston, Levy County.—In 1892 (Bull. U. S. Geol. Surv., No. 84, p. 129), Dr. W. H. Dall published a list, furnished by Joseph Leidy, of the vertebrate fossils found at what was then known as Mixon’s bone-bed. The species, with some additions, are listed on page [375]. Among others is Procamelus major. The species were found in the Alachua clays, and these clays are referred by Sellards to the Upper Miocene or Lower Pliocene.