16. Archer, Alachua County.—Dr. Joseph Leidy (Proc. Acad. Nat. Sci. Phila., 1886, p. 11) reported that Dr. W. H. Dall had discovered at Archer remains of a mastodon to which Leidy gave the name Mastodon floridanus. It is here referred to the genus Gomphotherium. It was associated in the Alachua clays with a species of Hipparion, three species of Procamelus, and a rhinoceros; also an astragalus of Megatherium. All of these, except the last, are usually referred to the Lower Pliocene or the Upper Miocene. The writer believes that they belong to the lowest Pleistocene, the Nebraskan.
17. Williston, Levy County.—Leidy (Proc. Acad. Nat. Sci. Phila., 1887, p. 309) reported the finding of several species of fossil vertebrates in the Mixon bone-bed, at or near Williston. The species were Gomphotherium floridanum, Hipparion plicatile, Procamelus major, and Teleoceras proterus. These were found in the Alachua clays at depths from 2.5 to 6 feet. In Dall’s list of 1892 (Bull. U. S. Geol. Surv. No. 84, p. 129) Hipparion ingenuum is included.
18. Juliette, Marion County.—Sellards, in 1913 (5th Ann. Rep. Florida Geol. Surv., p. 58), stated that Gomphotherium floridanum had been found in hard phosphate in a mine at this place. As in other such cases, he referred the species to the Upper Miocene or the Lower Pliocene.
5. Dunnellon, Marion County.—In the collection of the Florida Geological Survey is a fragment of a molar of Mammut americanum which was dredged up from Withlacoochee River during operations by the Schilman and Bene Phosphate Company. It was presented by John D. Robertson.
In the possession of Mr. J. D. Robertson of Ocala, Florida, is a part of a skull of Mammut americanum, reported by him to have been found in the northeast quarter of the southeast quarter of section 1, township 17 south, range 19 east. This would be about 6 miles east of Dunnellon and not far from Withlacoochee River.
In the region about Dunnellon the mastodon Gomphotherium floridanum has been collected. For the list of species found at Dunnellon and in Withlacoochee River the reader may consult page 376.
19. Near San Pablo Beach, Duval County.—From station 120, on the Inland Waterway, near San Pablo Beach, Sellards (8th Ann. Rep. Florida Geol. Surv., p. 106) reported the discovery of a tooth of Mammut americanum in place in the bank of the canal. Remains of Elephas columbi and undetermined species of Bison and Odocoileus had been thrown out by the dredge.
4. Almero Farm, St. John County.—At the residence of Mr. Fred R. Allen, 113 King street, St. Augustine, Florida, the writer had the privilege of examining seven teeth of Mammut americanum which had been found near Mr. Allen’s farm, 28 miles south of St. Augustine, in the Inland Waterway Canal. At the same place Mr. Allen had found remains of a fossil horse, a mylodon, alligator, and a part of the plastron of Terrapene antipex. The deposits are to be regarded as belonging to some part of the first half of the Pleistocene, probably the first interglacial.
6. Daytona, Volusia County.—In the U. S. National Museum (No. 2150) is an upper left last molar of Mammut americanum, sent in August 1901 from Daytona by E. T. Conrad & Company. It had been found at a depth of 5 feet in an old oyster-bed which was being dug up for surfacing the streets. The locality is within the limits of the town and about 2 miles from the Atlantic coast. The senders reported a little later that they had found four other teeth, a piece of tusk 40 inches long and 7 inches in diameter, and about a bushel of bones and fragments. There appeared to be other bones in the pit, but nothing more is on record. Since that mastodon died there, the land appears to have been depressed beneath the sea, permitting the growth of the oyster-bed, after which there was again an elevation.
13. Fellsmere, St. Lucie County.—Dr. E. H. Sellards (8th Ann. Rep. Florida Geol. Surv., p. 105) stated that Mammut americanum, represented by a tooth or teeth, had been found at Fellsmere in connection with the construction of drainage canals.