Assistant Professor of Geology
Juniata College
1700 Moore St.
Huntingdon, Pennsylvania 16652
USA
Ph: 814-641-3602
Email: powell@juniata.edu
matthew powell
|
Assistant Professor of Geology Juniata College 1700 Moore St. Huntingdon, Pennsylvania 16652 USA
Ph: 814-641-3602 Email: powell@juniata.edu |
teaching
Current
Invertebrate Paleobiology and Paleoecology (GL 3xx): slides, labs, etc. are available on the P drive.
Historical Geology (GL 201 & 202): slides, labs, etc. are available on the P drive.
Past
Principles of Stratigraphy (GL 405): Syllabus | Lectures | Tea
Geology Junior Seminar
Environmental Science Senior Capstone
Sedimentology (GL 401)
Death & Destruction by Nature (GL xxx)
Oceanography (GL xxx)
Paleontology (GL xxx)
research
Projects
I'm a paleontologist.
In a broad sense, I'm interested in how things that matter to individual organisms scale up to produce the patterns we see in the fossil record. Because I think the things that limit species in time are the same as the things that limit species in space, I've concentrated on geographic patterns of macroevolution, especially their relationship to climate. I've worked on within-community diversity through time, geographic patterns of brachiopod origination and extinction rates, why widespread taxa are geologically longer-lived than endemics, selective extinction during the Late Mississippian Period, et cetera. All invertebrates, so far.
Publications & Abstracts
2009 Powell, M.G., The latitudinal diversity gradient of brachiopods over the past 530 million years. Journal of Geology, in press.
2009 Powell, M.G., Schöne, B.R., Jacob, D., Tropical marine seasonality during the late Paleozoic ice age using trace element analyses of brachiopods. Palaeogeography, Palaeoclimatology, Palaeoecology, in press.
2008 Powell, M.G., Timing and selectivity of the late Mississippian mass extinction for brachiopod genera from the Central Appalachian basin. Palaios 23, 525-534.
2007 Powell, M.G., Geographic range and genus longevity of late Paleozoic brachiopods. Paleobiology 33: 530-546.
2007 Powell, M.G., Latitudinal diversity gradients for brachiopod genera during late Paleozoic time: Links between climate, biogeography, and evolutionary rates. Global Ecology & Biogeography 16: 519-528.
2005 Powell, M.G., Climatic basis for sluggish macroevolution during the late Paleozoic ice age. Geology 33: 381-384.
2003 Stanley, S.M., Powell, M.G. Depressed rates of origination and extinction during the late Paleozoic ice age: A new state for the global marine ecosystem. Geology 31: 877-880.
2002 Powell, M.G., and Kowalewski, M. Increase in evenness and sampled alpha diversity through the Phanerozoic: Comparison of early Paleozoic and Cenozoic marine fossil assemblages. Geology 30: 331-334.
2002 Bush, A.M., Powell, M.G., Bert, T.M., Arnold, W.S., and Daley, G.M.
2002. Time-averaging, evolution, and morphologic variation. Paleobiology 28: 9-25.
Abstracts
2009 Deptola, T.J., Powell, M.G., and Glazier, D.S., Metabolic scaling of the trilobite Eldredgeops rana. Geological Society of America, Abstracts with Programs.
2008 Powell, M.G., Pyrrhic extinction of planktonic foraminifera during the K/T event. Geological Society of America, Abstracts with Programs.
2008 O’Brien, J.J.*, Powell, M.G., Geographic distribution of Appalachian boulder fields and their relation to climate. Geological Society of America, Northeastern Section.
2007 Powell, M.G., Geographic range and genus longevity of late Paleozoic brachiopods. Geological Society of America, Abstracts with Programs.
2005 Powell, M.G., Selectivity of the Late Mississippian mass extinction for brachiopod genera from the Central Appalachian basin: Resolving an apparent paradox. Geological Society of America, Abstracts with Programs 37:384.
2004 Powell, M.G., Global macroevolutionary rates for brachiopods driven by fate of stenotopic genera during the late Paleozoic ice age. Geological Society of America, Abstracts with Programs 36:457.
2003 Powell, M.G., Global biogeographic patterns of brachiopod genera during the late Paleozoic ice age. Geological Society of America, Abstracts with Programs 35:503.
2002 Stanley, S.M., and Powell, M.G., A new state of the marine ecosystem during the late Paleozoic glacial interval. Geological Society of America, Abstracts with Programs 34.
2000 Powell, M.G., and Kowalewski, M., Differences in Paleozoic and Cenozoic diversity-abundance structure. Geological Society of America, Abstracts with Programs 32:131-132.
1999 Powell, M.G., Bush, A.M., Arnold, W.S., and Bert, T.M., Morphometric discrimination of hybrid Mercenaria spp. (Bivalvia) from the Indian River lagoon, Florida. Geological Society of America, Abstracts with Programs 31:173.
1999 Bush, A.M., Powell, M.G., Arnold, W.S., and Bert, T.M., Time-averaging and morphology: A comparison of variability in living populations and fossil assemblages of Mercenaria (Bivalvia) using landmark data. Geological Society of America, Abstracts with Programs 31:419.
et cetera
first, a proposal for a Student Research Journal that no one cares about, and
a mock-up of the aforementioned Student Research Journal:B&W
but I will keep hammering away because it's a good idea.
second, a ranking of Juniata College science faculty by H-index.
last updated 12 Oct 2009