Search Results - "Hagadorn, J W"

Exceptional continental record of biotic recovery after the Cretaceous-Paleogene mass extinction by Lyson, T R, Miller, I M, Bercovici, A D, Weissenburger, K, Fuentes, A J, Clyde, W C, Hagadorn, J W, Butrim, M J, Johnson, K R, Fleming, R F, Barclay, R S, Maccracken, S A, Lloyd, B, Wilson, G P, Krause, D W, Chester, S G B

“…We report a time-calibrated stratigraphic section in Colorado that contains unusually complete fossils of mammals, reptiles, and plants and elucidates the…”
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Precambrian Animal Diversity: Putative Phosphatized Embryos from the Doushantuo Formation of China by Chen, Jun-Yuan, Oliveri, Paola, Li, Chia-Wei, Zhou, Gui-Qing, Gao, Feng, Hagadorn, James W., Peterson, Kevin J., Davidson, Eric H.

“…Putative fossil embryos and larvae from the Precambrian phosphorite rocks of the Doushantuo Formation in Southwest China have been examined in thin section by…”
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Evolution of Neoproterozoic Wonoka–Shuram Anomaly-aged carbonates: Evidence from clumped isotope paleothermometry by Loyd, S.J., Corsetti, F.A., Eagle, R.A., Hagadorn, J.W., Shen, Y., Zhang, X., Bonifacie, M., Tripati, A.K.

“…•Clumped isotope data reported from three Neoproterozoic sections.•Temperatures covary with fluid and mineral δ18O values.•Data suggest recrystallization in…”
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A simple method to obtain high-resolution (millimeter-thick) samples from laminated sediments by Hagadorn, J. W., Flocks, J. G., Stott, L. D., Gorsline, D. S.

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EARLY MOLLUSCAN EVOLUTION: EVIDENCE FROM THE TRACE FOSSIL RECORD by SEILACHER, ADOLF, HAGADORN, JAMES W

“…Trace fossils extend the history of early molluscan evolution because they have a higher preservation potential in siliciclastic strata, where body fossils are…”
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EOLIAN-AQUATIC DEPOSITS AND FAUNAS OF THE MIDDLE CAMBRIAN POTSDAM GROUP by HAGADORN, JAMES W, COLLETTE, JOSEPH H, BELT, EDWARD S

“…Exposures of the middle Cambrian Potsdam Group of northern New York, including the type section, represent a suite of interfingering eolian dune and aquatic…”
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The occipital region in the basal bony fish Erpetoichthys calabaricus (Actinopterygii: Cladistia) by Claeson, K. M., Hagadorn, J. W.

“…Erpetoichthys calabaricus has unusual cranio‐vertebral anatomy, with an occipital centrum forming a component part of the compound basiexoccipital bone, and a…”
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Geochemical and sedimentologic variations in inter-annually laminated sediments from Santa Monica Basin by Hagadorn, James W., Stott, Lowell D., Sinha, Ashish, Rincon, Miguel

“…Laminated sediments were recently discovered in the center of Santa Monica Basin, California Continental Borderland and extend from the present day to at least…”
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DEAD IN THEIR TRACKS—CAMBRIAN ARTHROPODS AND THEIR TRACES FROM INTERTIDAL SANDSTONES OF QUEBEC AND WISCONSIN by COLLETTE, JOSEPH H, HAGADORN, JAMES W, LACELLE, MARIO A

“…The large euthycarcinoid arthropod Mictomerus melochevillensis from the middle Cambrian-Furongian Potsdam Group of Quebec occurs as three-dimensional casts at…”
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STRANDED IN UPSTATE NEW YORK: CAMBRIAN SCYPHOMEDUSAE FROM THE POTSDAM SANDSTONE by HAGADORN, JAMES W, BELT, EDWARD S

“…The Cambrian portion of the Potsdam Sandstone contains a suite of scyphomedusae impressions in fine-grained to medium-grained quartz arenites that outcrop on…”
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Neoproterozoic diamictite-cap carbonate succession and delta super(1) super(3)C chemostratigraphy from eastern Sonora, Mexico by Corsetti, F A, Stewart, J H, Hagadorn, J W

“…Despite the occurrence of Neoproterozoic strata throughout the southwestern U.S. and Sonora, Mexico, glacial units overlain by enigmatic cap carbonates have…”
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Hypothesized Cambrian medusae from Saint John, New Brunswick, reinterpreted as sedimentary structures by Hagadorn, James W, Miller, Randall F

“…More than a hundred radial and discoidal structures occur on bed tops of shales and very fine sandstones of the Cambrian (Series 3) King Square Formation in…”
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Insights into an Early Jurassic dinosaur habitat: ichnofacies and enigmatic structures from the Portland Formation, Hoover Quarry, Massachusetts, U.S.A by Collette, Joseph H, Getty, Patrick R, Hagadorn, James W

“…Jurassic sandstones of the Hartford Basin are well known for their dinosaur trackways, but few studies have characterized their invertebrate ichnofaunas. A…”
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A Fungal Analog for Newfoundland Ediacaran Fossils? by Peterson, K J, Waggoner, B, Hagadorn, J W

“…We propose that some of the more conspicuous Ediacaran fossils from the Avalon Peninsula of Newfoundland, including Aspidella, Charnia, and Charniodiscus, were…”
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A Fungal Analog for Newfoundland Ediacaran Fossils? by Peterson, Kevin J., Waggoner, Ben, Hagadorn, James W.

“…We propose that some of the more conspicuous Ediacaran fossils from the Avalon Peninsula of Newfoundland, including Aspidella, Charnia, and Charniodiscus, were…”
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Ediacaran fossils from the southwestern Great Basin, United States by Hagadorn, J W, Waggoner, B

“…Ediacaran fossils from the southwestern Great Basin may help constrain regional Vendian-Cambrian biostratigraphy and provide biogeographic links between facies…”
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Twenty Years Online! A brief history of Palaeontologia Electronica by Louys, J, Bush, A, Hagadorn, JW, MacLeod, N, Patterson, T, Polly, PD, Rumford, JP

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Restriction of a late Neoproterozoic biotope; suspect-microbial structures and trace fossils at the Vendian-Cambrian transition by Hagadorn, James W, Bottjer, David J

“…Wrinkle structures are a class of oddly textured sedimentary structures that are common in Proterozoic-Cambrian marine siliciclastic strata, but uncommon in…”
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Early Cambrian ediacaran-type fossils from California by Hagadorn, J W, Fedo, C M, Waggoner, B M

“…Ediacara-type fossils are rare in the southwestern United States, and Cambrian occurrences of soft-bodied Ediacaran-type fossils are extremely rare. We report…”
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EDIACARAN FOSSILS FROM THE SOUTHWESTERN GREAT BASIN, UNITED STATES by HAGADORN, JAMES W, WAGGONER, BEN

“…Ediacaran fossils from the southwestern Great Basin may help constrain regional Vendian-Cambrian biostratigraphy and provide biogeographic links between facies…”
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