A New Late Miocene Herpetofauna from Franklin County, Nebraska

Rodents from the Late Hemphillian (Latest Miocene), Sioux County, Nebraska

Only one rodent specimen has been previously described from the late Hemphillian ZX Bar local fauna from Sioux County, Nebraska-the holotype of the heteromyid Perognathus coquorum Wood. A re-examination ofthis specimen has led to its allocation to the dipodomyine heteromyid genus Prodipodomys Hibbard. An additional specimen of a fossil rodent has been recognized from the ZX Bar fauna that is re...

Herpetofauna of Mormon Island Preserve Hall County, Nebraska

Airesites: a New Class of Late Miocene Tektites from Argentina

Introduction: We report the discovery of two tektites (Fig. 1A) collected in the vicinity of Bahía Blanca, Buenos Aires Province (BPA), Argentina. The smaller tektite (T2) has an elongate, teardrop form ~2 mm long. The larger one (T1) appears to be a classic disc-shaped tektite ~2 mm in diameter. Both are black in reflected light and exhibit the grooved and pitted surface sculpting common to te...

Reexamination of Herpetofauna on Mormon Island, Hall County, Nebraska, with Notes on Natural History

7 Introduction Many grasslands along rivers in the Great Plains have been converted to agricultural lands during the last century (Sidle et al., 1989) or lost to woody encroachment due to suppression of wildfires and alterations to hy-The Platte River valley in central Nebraska is an important migratory stopover site for waterfowl (Sharpe et al. portions of the river designated as critical habi...

Insectivora (Mammilia) from the Miocene (Hemingfordian) of Western Nebraska