Spea bombifrons and Bufo cognatus have statewide distributions and appear at breeding sites after heavy rains during late spring and early summer.
Species codes are as follows: Hyla chrysoscelis (196), Acris crepitans (191), Pseudacris triseriata (214), Bufo americanus (172), Bufo woodhousii (188), Bufo cognatus (175), Rana blairi 224), Rana catesbeiana (228), Rana pipiens (239), Spea bombifrons (142), Gastrophryne olivacea (218).
To date, only two records of crania of Bootherium bombifrons from Texas have been documented in the literature (Hesse, 1942; McDonald, 1985).
This specimen, TAMC 2553, became the holotype of Bootherium brazosis Hesse, 1942, since referred by Ray (1966) to Bootherium sargenti and McDonald and Ray (1989) to Bootherium bombifrons.
Our comparison of a cast of the Cave Without A Name specimen (which was referred to Symbos by Lundelius--personal communication, 13 April 1989) and the third phalanges of Bootherium bombifrons, Euceratherium collinum, Ovibos moschatus, Bison bison, and Alces alces indicated that UT 40450-1625 most closely conforms to the third phalanges of the pes of Bootherium (=Symbos) bombifrons.
ET 5301 is identified as Bootherium bombifrons on the basis of the placement, shape, and orientation of the horn cores, and the depth of the frontoparietal sinus region.
The pattern of bone loss in ET 5301 is consistent with that seen in skulls of male Bootherium bombifrons that have been found in coarse fluvial sediments.
The pattern of damage to ET 5301--the loss of the face, all or part of both horn cores, and most of the minor prominences on other parts of the cranium, in conjunction with relatively large missing chips of bone--is consistent with patterns of damage seen in male crania of Bootherium bombifrons that have been recovered from coarse fluvial sediments and are presumed to have been damaged by abrasion in high-energy fluvial currents.
Although records of Bootherium bombifrons are uncommon south of about latitude 35[degrees] N, a conspicuous concentration of records of the species in the south-central part of the United States is emerging.
bombifrons and, most importantly, the family Scaphiopodidae for the first time.
bombifrons be conducted, including a larger sample size and and examination of various specimens from other parts of their range.
Endoparasites of Scaphiopus hurterii and Spea bombifrons from Marshall County, Oklahoma.