Global ETD Search

1	Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus Lee-Thorp, Julia A., De Ruiter, D., Passey, B., Sponheimer, M.B. January 2006 (has links) No / Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysis reveals that the ¿13C values of Paranthropus robustus individuals often changed seasonally and interannually. These data suggest that Paranthropus was not a dietary specialist and that by about 1.8 million years ago, savanna-based foods such as grasses or sedges or animals eating these foods made up an important but highly variable part of its diet. Paranthropus Hominidae Chordata Vertebrata Tetrapoda Mammalia Theria Eutheria Primates Laser Methods Chemical Analysis Methodology Savanna Seasonal Variations C-13/C-12 Stable Isotopes Diet Reconstruction
2	Small Vertebrates of the Bidahochi Formation, White Cone, Northeastern Arizona Baskin, Jon Alan January 1975 (has links) Two taxa of amphibians, five taxa of reptiles, and eighteen taxa of mammals were collected by screen-washing sediments from the upper Bidahochi Formation at White Cone peak, northeastern Arizona. Five new species of mammals were recovered. They include Perognathoides bidahochiensis (Heteromyidae), Bensonomys yazhi (Cricetidae), Bensonomys bradyi (Cricetidae), Paronychomys alticuspis (Cricetidae), and Martes (Plionictis) repenningi (Mustelidae). Bensonomys yazhi and Bensonomys bradyi are close to the stem of Central and South Americal hesperomyine radiation. The radiation began in the southwest United States and Mexico during the Hemphillian. The middle member of the Bidahochi Formation is dated at 6.7 m. y. by a basalt from Roberts Mesa. The paleomagnetic data and the White Cone local fauna support this middle Hemphillian date. Amphibia Arizona Bensonomys Bidahochi Formation Carnivora Cenozoic Chordata Cricetidae Eutheria faunal studies Hemphillian Heteromyidae Mammalia Martes Miocene Mustclidae Myomorpha Neogene new taxa northeast occurrence paleontology Perognathoides Pliocene radiation Reptilia Rodentia Tertiary Tetrapoda Theria United States Vertebrata White Cone Paleontology -- Arizona -- White Cone Vertebrates -- Arizona -- White Cone Vertebrates, Fossil

Search results

Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus

Small Vertebrates of the Bidahochi Formation, White Cone, Northeastern Arizona