Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Oyvind Hammer"'
Autor:
Øyvind Hammer, David A. T. Harper
PALEONTOLOGICAL DATA ANALYSIS An up-to-date edition of the indispensable guide to analysing paleontological data Paleontology has developed in recent decades into an increasingly data-driven discipline, which brings to bear a huge variety of statisti
Autor:
Øyvind Hammer
This book uses the spiral shape as a key to a multitude of strange and seemingly disparate stories about art, nature, science, mathematics, and the human endeavour. In a way, the book is itself organized as a spiral, with almost disconnected chapters
The object of this book is to explain how to create a synthesis of complex biostratigraphic data, and how to extract from such a synthesis a relative time scale based exclusively on the fossil content of sedimentary rocks. Such a time scale can be us
Publikováno v:
Micropaleontology. 57:483-489
Analyses based on complete faunas are more reliable than those based on a few species. To minimize errors in identification due to geographical and ecological variations in skeletal morphology, as well as taxonomic "noise" caused by ontogenetic stage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::762b8303107c89bbf6e409a808900615
https://doi.org/10.47894/mpal.57.6.01
https://doi.org/10.47894/mpal.57.6.01
Publikováno v:
PLoS ONE, Vol 18, Iss 5, p e0285939 (2023)
The black shales of the Middle Triassic Botneheia Formation in Svalbard are known for their fossil richness with abundant ichthyosaur remains and beds of the bivalve Daonella. Vertebrate remains from the Muen Mountain on Edgeøya are shown to have ex
Externí odkaz:
https://doaj.org/article/9c75414ad5594366a5ab2eb43a401650
Autor:
Vincent Dupret, Hannah M Byrne, Nélia Castro, Øyvind Hammer, Kenneth T Higgs, Johan A Long, Grzegorz Niedźwiedzki, Martin Qvarnström, Iwan Stössel, Per E Ahlberg
Publikováno v:
PLoS ONE, Vol 18, Iss 2, p e0280208 (2023)
Material of the antiarch placoderm Bothriolepis from the middle Givetian of the Valentia Slate Formation in Iveragh Peninsula, Ireland, is described and attributed to a new species, B. dairbhrensis sp. nov. A revision of the genus Bothriolepis is pro
Externí odkaz:
https://doaj.org/article/a56c283a583f4b7e9fde452e0b86dc63
Publikováno v:
Polar Research, Vol 38, Iss 0, Pp 1-16 (2019)
We report on the changing radiolarian faunas from the Younger Dryas (ca.12.9 calibrated thousands of years BP [cal. Ky BP]) and into the Holocene (ca. 10.3 cal. Ky BP) in the core JM99-1200 from Andfjorden, northern Norway. Temperature reconstruction
Externí odkaz:
https://doaj.org/article/d1dae13a4c4a46bd8fce2e9f8544e43f
Autor:
Øyvind Hammer, David A. T. Harper
During the last 10 years numerical methods have begun to dominate paleontology. These methods now reach far beyond the fields of morphological and phylogenetic analyses to embrace biostratigraphy, paleobiogeography, and paleoecology. Paleontological
Akademický článek
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Publikováno v:
Computer Music Journal. 17:59
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2b2b8b08e1a6c3f7502e84e95d8c52d
https://doi.org/10.2307/3680943
https://doi.org/10.2307/3680943