The Pleistocene of North America: and its vertebrated animals from the states east of the Mississippi River and from the Canadian provinces east of longitude 95°Hay, Oliver Perry
Science
The Pleistocene of North America: and its vertebrated animals from the states east of the Mississippi River and from the Canadian provinces east of longitude 95°
Hay, Oliver Perry
Paleontology -- North America; Paleontology -- Pleistocene; Vertebrates, Fossil
3. _Ocala, Marion County._—In 1888, in a fissure in a limestone quarry,
probably Phillip’s quarry, near Ocala, Mr. Joseph Willcox discovered
some vertebrate remains which were later described by Leidy (Trans.
Wagner Free Inst., vol. II, pp. 13–17, plate III, figs. 1, 5, 6 to 9).
The species as determined by Leidy were _Elephas columbi_, _Equus
fraternus_, _Auchenia minima_, and _Machairodus floridanus_. They were
regarded as belonging to the Quaternary, but in Dall’s paper of 1892
(Bull. 84, U. S. Geol. Surv., p. 129) they are referred to the age of
the Alachua clays; that is, to the Pliocene. Sellards, in 1916 (8th Ann.
Rep. Florida Geol. Surv., p. 103), regards the fossils as belonging to
the Pleistocene, and he adds representatives of 4 genera to the list.
These are undetermined species of _Bison_, _Odocoileus_, _Dasypus_, and
_Sylvilagus_. The genus _Dasypus_ is the one to which attention is
especially called at this time. A list of the vertebrate animals found
at this place is presented on page 378.
4. _Dunnellon, Marion County._—In Sellards’s report just referred to, he
prints a list of the Pleistocene vertebrates found in Withlacoochee
River. Among these is the xenarthrid animal _Chlamytherium
septentrionale_. What parts were secured and exactly at what place the
writer does not know.
In the collection of the Florida Geological Survey is a foot-bone, No.
1307, which appears to be the second right metacarpal of _Megalonyx_. It
is smaller than the one figured by Leidy. The extreme length is 60 mm.,
the greatest diameter of the proximal end 27 mm., that of the distal end
36 mm. It was found in the mine of the Dunnellon Phosphate Company. For
a list of the associated species the reader is referred to page 376.
5. _Hillsboro River, Hillsboro County._—In 1915 (Amer. Jour. Sci., vol.
XL, p. 139), Sellards stated that the Jarman collection at Vanderbilt
University, at Nashville, contains several dermal plates of
_Chlamytherium septentrionale_, found in Hillsboro River.
6. _Sarasota Bay, Sarasota County._—In 1915, Sellards (op. cit., p. 143)
reported that the collection of Wagner Free Institute at Philadelphia
contains one dermal plate of _Chlamytherium septentrionale_ found by
Joseph Willcox at White Beach, on Sarasota Bay.
The American Museum of Natural History, New York, possesses a dermal
plate of a xenarthrid, collected by Barnum Brown 8 miles southeast of
Sarasota. This probably belonged to the animal mentioned above.
7. _Zolfo, Hardee County._—Dr. W. D. Matthew has informed the writer
that there are in the American Museum of Natural History some bones of a
very large individual of _Megatherium_, reported as having been found
near Zolfo. An astragalus, the proximal part of a humerus, the distal
part of a radius, and the proximal part of a femur were mentioned. These
bones may be referred provisionally to _Megatherium mirabile_ Leidy.
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