Results 1 to 10 of about 31,099 (302)

Measurement theory and paleobiology

Trends in Ecology & Evolution, 2023
Measurement theory, a branch of applied mathematics, offers guiding principles for extracting meaning from empirical observations and is applicable to any science involving measurements. Measurement theory is highly relevant in paleobiology because statistical approaches assuming ratio-scaled variables are commonly used on data belonging to nominal and
Kjetil Lysne Voje, James G. Saulsbury, Jostein Starrfelt, Daniel Varajão Latorre, Alexis Rojas, Vilde Bruhn Kinneberg, Lee Hsiang Liow, Connor J. Wilson, Erin E. Saupe, Mark Grabowski   +9 more
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Progress in echinoderm paleobiology [PDF]

Journal of Paleontology, 2017
Echinoderms are a diverse and successful phylum of exclusively marine invertebrates that have an extensive fossil record dating back to Cambrian Stage 3 (Zamora and Rahman, 2014). There are five extant classes of echinoderms (asteroids, crinoids, echinoids, holothurians, and ophiuroids), but more than 20 extinct groups, all of which are restricted to ...
Zamora Iranzo, Samuel Andrés, Rahman, Imran A.   +1 more
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The paleobiological record of photosynthesis [PDF]

Photosynthesis Research, 2010
Fossil evidence of photosynthesis, documented in Precambrian sediments by microbially laminated stromatolites, cyanobacterial microscopic fossils, and carbon isotopic data consistent with the presence of Rubisco-mediated CO2-fixation, extends from the present to ~3,500 million years ago. Such data, however, do not resolve time of origin of O2-producing
J. William Schopf, J. William Schopf
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Discrete and continuous character-based disparity analyses converge to the same macroevolutionary signa. A case study from captorhinids [PDF]

, 2017
The relationship between diversity and disparity during the evolutionary history of a clade provides unique insights into evolutionary radiations and the biological response to bottlenecks and to extinctions.
Brocklehurst, Neil, Fröbisch, Jörg, Romano, Marco   +2 more
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Functional diversity of marine ecosystems after the Late Permian mass extinction event [PDF]

, 2014
Article can be accessed from http://www.nature.com/ngeo/journal/v7/n3/full/ngeo2079.htmlThe Late Permian mass extinction event was the most severe such crisis of the past 500 million years and occurred during an episode of global warming.
A Baud, A Brayard, AE Webb, AH Knoll, AI Miller, AI Miller, AJ McGowan, AM Bush, AM Bush, AM Bush, DH Erwin, DM Raup, E Flügel, GJ Vermeij, GR McGhee, GT Lloyd, J-P Zonneveld, JJ Sepkoski, JL Payne, JL Payne, JW Valentine, M Hautmann, ME Clapham, ME Clapham, MJ Benton, MK Reichow, ML Fraiser, ND Jacobsen, PA Allison, PB Wignall, PB Wignall, PM Novack-Gottshall, PW Signor, RH Green, Richard J. Twitchett, RJ Twitchett, RJ Twitchett, RJ Twitchett, RK Bambach, S Villéger, S-Z Shen, SB Pruss, SM Stanley, T Kearsey, TK Baumiller, TW Beatty, WI Ausich, William J. Foster, Y Sun, Z-Q Chen   +49 more
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Paleobiology and philosophy [PDF]

Biology & Philosophy, 2019
I offer four ways of distinguishing paleobiology from neontology, and from this develop a sketch of the philosophy of paleobiology. I then situate and describe the papers in the special issue Paleobiology and Philosophy, and reflect on the value and prospects of paleontology-focused philosophy.
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Considering the Case for Biodiversity Cycles: Reexamining the Evidence for Periodicity in the Fossil Record [PDF]

, 2007
Medvedev and Melott (2007) have suggested that periodicity in fossil biodiversity may be induced by cosmic rays which vary as the Solar System oscillates normal to the galactic disk.
AB Smith, Adrian L. Melott, AG Fischer, AG Fischer, AI Miller, AW Grabau, Bruce S. Lieberman, CL Camp, DM Raup, DM Raup, ES Vrba, FO Brigham, G Ding, GG Simpson, J Alroy, JA Van Dam, JD Scargle, JJ Sepkoski Jr, JJ Sepkoski Jr, JL Cornette, JL Cornette, JM Adrain, John Hawks, JW Kirchner, JW Kirchner, JW Kirchner, LG Henbest, M Foote, M Foote, M Omerbashich, MJ Benton, ML Droser, MV Medvedev, N Eldredge, ND Newell, ND Newell, NL Gilinsky, P Laguna, PJ Lu, RA Muller, RA Rohde, RA Rohde, RE Plotnick, RK Bambach, S Peters   +44 more
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Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés, Bargo, María Susana, Cuitiño, José Ignacio, Vizcaíno, Sergio Fabián   +3 more
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Climate Change and invasibility of the Antarctic benthos [PDF]

, 2007
Benthic communities living in shallow-shelf habitats in Antarctica (<100-m depth) are archaic in their structure and function. Modern predators, including fast-moving, durophagous (skeleton-crushing) bony fish, sharks, and crabs, are rare or absent ...
A Brandt, A Brandt, A Brandt, A Brandt, A Clarke, A Clarke, A Clarke, A Clarke, A Clarke, AL Allcock, Andrew Clarke, BA Seibel, Brad A. Seibel, Cheryl D. Wilga, D Thies, DA Hodgson, Daniel B. Blake, DS Coombs, EW Dawson, G Chapelle, GA Knox, GA Lovrich, GE Hofmann, GJ Vermeij, JC Carrier, JE Werner, JH Lipps, JM Raguá-Gil, JP Kennett, JS Pearse, JT Eastman, JT Eastman, JW Wakeling, L Watling, LC Ivany, LI Comoglio, Lloyd S. Peck, LS Peck, M Klages, MA Bitner, P Huybrechts, PA Fields, PD Glorioso, PM Arnaud, Pörtner H-O, R Revelle, RB Aronson, Richard B. Aronson, RJ Menzies, RM Feldmann, S Thatje, S Thatje, SM Stanley, Snelgrove PVR, ST Ahyong, Sven Thatje, T Antezana, T Brey, TJ Page, U Piatkowski, WE Arntz, WE Arntz, WE Arntz   +62 more
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Scale and structure of time-averaging (age mixing) in terrestrial gastropod assemblages from Quaternary eolian deposits of the eastern Canary Islands [PDF]

, 2007
Quantitative estimates of time-averaging (age mixing) in gastropod shell accumulations from Quaternary (the late Pleistocene and Holocene) eolian deposits of Canary Islands were obtained by direct dating of individual gastropods obtained from ...
Torres Pérez-Hidalgo, Trinidad José
core   +2 more sources