Zobrazeno 1 - 10
of 57
pro vyhledávání: '"John A. Calder"'
Autor:
Lorenzo Marchetti, Sebastian Voigt, Michael Buchwitz, Mark J. MacDougall, Spencer G. Lucas, David L. Fillmore, Matthew R. Stimson, Olivia A. King, John H. Calder, Jörg Fröbisch
Publikováno v:
Frontiers in Ecology and Evolution, Vol 9 (2021)
The origin of Reptilia and the biostratigraphic and palaeobiogeographic distribution of its early representatives are still poorly understood. An independent source of information may come from the extensive Carboniferous footprint record of reptiles
Externí odkaz:
https://doaj.org/article/7aefdabdb13b4fdc846457b38510a591
Autor:
Brian L. Hebert, Adrian P. Hunt, Matthew R. Stimson, Olivia A. King, John H. Calder, Spencer G. Lucas, Chris F. Mansky
Publikováno v:
Geological Society, London, Special Publications. 512:933-963
The Carboniferous record of tetrapod footprints is mostly of Euramerican origin and provides the basis for a footprint biostratigraphy and biochronology of Carboniferous time that identifies four tetrapod footprint biochrons: (1) stem-tetrapod biochr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f2e1f893b7f9d65eb6541eb996449a2
https://doi.org/10.1144/sp512-2020-235
https://doi.org/10.1144/sp512-2020-235
Publikováno v:
Geoscience Canada. 48
The Canadian Federation of Earth Sciences (CFES) has issued this statement to summarize the science, effects, and implications of climate change. We highlight the role of Earth scientists in documenting and mitigating climate change, and in managing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a6a939e604eff942c379e5b0aacc45c
https://doi.org/10.12789/geocanj.2021.48.173
https://doi.org/10.12789/geocanj.2021.48.173
Autor:
John H. Calder, André Jasper, Jun Wang, William A. DiMichele, Stanislav Opluštil, Marion K. Bamford, Stephen McLoughlin, Robert A. Gastaldo, Ronny Rößler, Hermann W. Pfefferkorn, Hans Kerp, Roberto Iannuzzi
Publikováno v:
Springer Textbooks in Earth Sciences, Geography and Environment ISBN: 9783030350574
The assembly of the supercontinent Pangea resulted in a paleoequatorial region known as Euramerica, a northern mid-to-high latitude region called Angara, and a southern high paleolatitudinal region named Gondwana. Forested peat swamps, extending over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3981a0a628ecd9744ba434fd208f31ec
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-3839
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-3839
Autor:
John H. Calder
Publikováno v:
Geological Society of America Abstracts with Programs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::765e48f4e21df9570915a5ff5c9be5a9
https://doi.org/10.1130/abs/2020am-359561
https://doi.org/10.1130/abs/2020am-359561
Autor:
Stanislav Opluštil, John H. Calder, Ronny Rößler, Hermann W. Pfefferkorn, Stephen McLoughlin, André Jasper, Jun Wang, William A. DiMichele, Roberto Iannuzzi, Hans Kerp, Marion K. Bamford, Robert A. Gastaldo
Publikováno v:
Springer Textbooks in Earth Sciences, Geography and Environment ISBN: 9783030350574
A walk in the Carboniferous-and-Permian woods of the Late Paleozoic, a time known as the Late Paleozoic Ice Age (LPIA), would not be a walk in the woods comparable to today’s Holocene forests. The vegetation that colonized and inhabited the landsca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c653f9abb9ea371ff4ccbb78d5876d8
https://doi.org/10.1007/978-3-030-35058-1_12
https://doi.org/10.1007/978-3-030-35058-1_12
Publikováno v:
Sedimentary Geology. 329:1-11
Markov Chain analysis was applied to the description of the megascopic lithologic transitions in Pennsylvanian-age eastern Kentucky coals. Coal lithology modeling can be problematic as individual lithotypes can represent near-instantaneous events (vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeab3387f955646ea74f01bb5315ca31
https://doi.org/10.1016/j.sedgeo.2015.08.005
https://doi.org/10.1016/j.sedgeo.2015.08.005
Autor:
Matthew R. Stimson, Martin R. Gibling, Zabrina M. Prescott, Lynn T. Dafoe, John H. Calder, R. Andrew MacRae, Brian L. Hebert
Publikováno v:
PALAIOS. 29:624-645
A meandering fluvial channel body at Coal Mine Point in the Joggins Fossil Cliffs, Nova Scotia contains an unusual fossil assemblage. During an early stage of channel abandonment, a wrinkled surface attributed to microbial mats was traversed by large
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c22990f5b096ea986f4d5745a93f3ca7
https://doi.org/10.2110/palo.2013.073
https://doi.org/10.2110/palo.2013.073
Publikováno v:
ANZ Journal of Surgery. 82:461-465
Background: Symptomatic rotator cuff tear is a commonly diagnosed problem in patients over the age of 70; however, there is controversy regarding the management of this condition. We set out to investigate whether this group has satisfactory results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a07ef38d6897813df65e4c5f43beaf
https://doi.org/10.1111/j.1445-2197.2012.06034.x
https://doi.org/10.1111/j.1445-2197.2012.06034.x
Autor:
Adrian F. Park, David G. Keighley, John H. Calder, Ron K. Pickerill, Michael J. Benton, John W.F. Waldron, Howard J. Falcon-Lang
Publikováno v:
University of Bristol-PURE
David Keighley, John Calder, Adrian Park, Ronald Pickerill & John Waldron write: In a recent article, Falcon-Lang et al . (2007, p. 1113) claim ‘trackways representing the earliest evidence for the origin of reptiles (amniotes) are reported from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::495d0f4092cca9de2dbcd76f7cb62546
https://doi.org/10.1144/0016-76492008-045
https://doi.org/10.1144/0016-76492008-045