Pleistocene Bats of Tennessee

Corgan, James X.

doi:10.2307/2424190

Cited by 3 publications

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“…For example, a depression measuring 110 m by 75 m in residuum, loess, and silty colluvial settings on the Western Highland Rim, would have an estimated apparent age of 37,600; 64,800; and 24,900 years, respectively. The co-occurrence of mastodon (Mammut americanum) and ground sloth (Megalonyx jeflersoni) from a depression at Darks Mill in the Central Basin (Corgan (1975)) yielded a radiocarbon …”

Section: Resultsmentioning

confidence: 99%

Karst depressions in a time context

Kemmerly

Towe

1978

Earth Surf. Process.

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SUMMARYA study of karst depression enlargement through time on the Western Highland Rim (physiographic province), based on two sets of aerial photography (1937, 1972) and field work, indicates that areal growth rates (dA/dt, mz/a) depend upon the surficial geologic setting. Areal growth rates were calculated from rates of long axis (dL/dt) and mean width (d W/df) enlargement assuming an elliptical plan shape. Areal growth rates averaged 40,70, and 100 m2/century for loessial, clayey residual, and silty colluvial surficial material, respectively.Estimates of average apparent age of karst depressions in each of the three surficial materials, based on linear growth rates, varied from 25,000 to 65,000 years B.P. An occurrence of mastodon (Mummut americanum) and ground sloth (Me&lonyx jeffersoni) from the Darks Mill depression as well as a pollen record from another depression dating from the Late Wisconsin glacial maximum in the same geomorphic setting yielded dates compatible with estimates of depression age.

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Section: Resultsmentioning

confidence: 99%

Karst depressions in a time context

Kemmerly

Towe

1978

Earth Surf. Process.

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“…Late Pleistocene Status.-In the East, reported from three sites in Tennessee (Corgan 1974;Parmalee 1982;Parmalee & Klippel 1982) and Bell Cave, Alabama (Parmalee 1992).…”

Section: Tympanuchus Cupido (Linnaeus) -Greatermentioning

confidence: 99%

Late Pleistocene Birds from Kingston Saltpeter Cave, Southern Appalachian Mountains, Georgia

Steadman

2005

FLMNH

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Kingston Saltpeter Cave, Bartow County, Georgia, has produced late Quaternary fossils of 38 taxa of birds. The presence of extinct species of mammals, and three radiocarbon dates on mammalian bone collagen ranging from approximately 15,000 to 12,000 Cal B.P., indicate a late Pleistocene age for this fauna, although a small portion of the fossils may be Holocene in age. The birds are dominated by forest or woodland species, especially the Ruffed Grouse (Bonasa umbellus) and Passenger Pigeon (Ectopistes migratorius). Species indicative of brushy or edge habitats, wetlands, and grasslands also are present. They include the Greater Prairie Chicken (Tympanuchus cupido, a grassland indicator) and Black-billed Magpie (Pica pica, characteristic of woody edges bordering grasslands). Both of these species reside today no closer than 1000+ km to the west (mainly northwest) of Georgia. An enigmatic owl, perhaps extinct and undescribed, is represented by two juvenile tarsometatarsi. The avifauna of Kingston Saltpeter Cave suggests that deciduous or mixed deciduous/coniferous forests and woodlands were the dominant habitats in the late Pleistocene of southernmost Appalachia, with wetlands and grasslands present as well.

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“…Manimut americanum & Saunders 1984 ). Descriptions of skeletons ( Warren (Kerr 1792) has traditionally been considered to be static 1852;Osborn 1936;Corgan 1976;Fisher 1990; Harington in its morphologic evolution (e.g., Kurten & Anderson et al 1993. Daeschler 1996.…”

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confidence: 99%

Chronoclinal variation and sexual dimorphism in Mammut americanum (American mastodon) from the Pleistocene of Florida

Green

2006

FLMNH

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This study quantitatively and statistically analyzes chronoclinal variation in Mammut americanum fossils over a broad temporal range (~1. 5 Ma to 10,000 year BP). A large sample of elements (third molars, mandibles, limb bones) from the Irvingtonian and Rancholabrean of Florida were measured and statistically compared for significant differences. Rancholabrean elements are generally found to be significantly larger than Irvingtonian elements. Florida M. americanum shows directional selection for increased body mass from the Irvingtonian to the Rancholabrean. Anterior mandibular height is the only measurement that demonstrates significant sexual dimorphism in Rancholabrean individuals, with males having a larger anterior mandibular height than females. Mandibular tusk presence/absence ratios. in Florida M. americanum show directional selection against these small tusks from the Irvingtonian to the Rancholabrean. M. americanum demonstrates a heterochronic increase in growth rate at the onset of puberty from the Irvingtonian to the Rancholabrean. In addition, Rancholabrean M. americanum populations also exhibit holobiotic heteromorphism, with males growing at a faster rate than females. The results of this study demonstrate that throughout its ~1.5 Ma range in Florida, M. americanum was not static in its evolution.

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Pleistocene Bats of Tennessee

Cited by 3 publications

References 0 publications

Karst depressions in a time context

Karst depressions in a time context

Late Pleistocene Birds from Kingston Saltpeter Cave, Southern Appalachian Mountains, Georgia

Chronoclinal variation and sexual dimorphism in Mammut americanum (American mastodon) from the Pleistocene of Florida

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