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Historical Biology 23(1): 27-40.ABSTRACTS Journal of Archaeological Science: Reports (10): 147-154.įowler, D., and Hall, L. The Wauseon Clovis fluted point preform, Northwest Ohio, U.S.A.: observations, geometric morphometrics, microwear, and toolstone procurement distance. Indiana University Press.Įren, M., Redmond, B., Miller, G., Buchanan, B., Boulanger, M., Hall, A., and Hall, L.
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In Falkingham, Marty, and Richter (eds), Dinosaur Tracks: The Next Steps. The flexion of sauropod pedal unguals and testing the substrate grip hypothesis using the trackway fossil record. Underfoot Ancient Giants: Tracking Sauropod Dinosaurs.Sauropod Dinosaurs: Long Necks and Peculiar Claws (on this page).ORIGINS SCIENCE SCHOLARS PROGRAM LECTURE SERIESĬase Western Reserve University’s Institute for the Science of Origins Videos His research background includes Late Jurassic dinosaurs of Ethiopia, bite marks and intraspecific aggression in the Late Devonian giant arthrodire Dunkleosteus, and the function and evolution of sauropod claws.
Svp abstracts professional#
His professional interests include taphonomy and stratigraphy, and improving the standards and practices of paleontology lab and field methods. He is a member of the Society of Vertebrate Paleontology’s Hix Preparators’ Grant Panel, and the Ask a Paleontologist list. Lee is currently president of the Association for Materials and Methods in Paleontology. In 2020, he returned to Museum of the Rockies where he now serves as the paleontology field professional. While with the CMNH, Lee managed the fossil preparation lab, initiated a major lab renovation project, and participated in local and international fieldwork in Canada and Mongolia. After four years crisscrossing the southwestern US rescuing fossils from bulldozers and running a small fossil lab, he was hired by the Cleveland Museum of Natural History as their preparator. Lee earned a Bachelor of Science in earth science from MSU in 2011 and began a career in mitigation paleontology with SWCA, Inc. He subsequently attended Montana State University and during the summers worked as a crew chief running digs for the MOR. At the age of 16, he was invited by former Curator of Paleontology Jack Horner to volunteer with MOR field crews.
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Moving to South Dakota and trips to Badlands National Park cemented his love of exploration, the outdoors, and natural history. It may be possible to differentiate normal from increased ICP by the MR signal intensity of the CSF in the ventricular system.Lee caught the dinosaur bug from childhood visits to the Smithsonian’s National Museum of Natural History, and a copy of the Little Golden Book of Dinosaurs. The SVP reflects the capacity of the craniospinal cavity to buffer pressure changes within it. It is known that CSF in the cranial cavity flows toward the spinal space in a to-and-fro manner in response to the pulsations of the brain. These graphs showed six distinct patterns which changed after the ICP was lowered by the withdrawal of CSF via a lumbar puncture. Based on MR images triggered by electrocardiography (EKG) waves, graphs were plotted to show the signal intensity of ventricular CSF versus time after the EKG R-wave. The difference in the incidence of SVP between these two disease groups was statistically significant by Fisher's direct probability test. This SVP was noted in the MR studies of 12 of 14 patients with communicating hydrocephalus who showed a normal mean intracranial pressure (ICP) and normal pulse pressure, but in only seven of 50 patients with high mean ICP and high pulse pressure (such as those with a supratentorial tumor). ✓ In a retrospective study of magnetic resonance (MR) images obtained in 289 neurosurgical patients, loss of signal intensity (signal-void phenomenon, SVP) of the cerebrospinal fluid (CSF) in the mesencephalic aqueduct was observed in 77 patients.