Life on the earth its origin and succession / by John Phillips.

Phillips, John

doi:10.5962/bhl.title.22153

Cited by 58 publications

(31 citation statements)

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“…This biotic transition has been known for more than a century (e.g. Phillips, 1860;Hancock, 1967) but the causes for the extinctions have been debated over for a long time. The discovery of anomalously high concentrations of iridium (Ir) and other platinum group elements (PGE) at the K-Pg boundary transition provided the first evidence for an extraterrestrial cause (Alvarez et al, 1980;Smit and Hertogen, 1980).…”

Section: Introductionmentioning

confidence: 99%

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Açıkalın¹,

Vellekoop

Ocakoğlu

et al. 2015

Cretaceous Research

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A Cretaceous-Paleogene (K-Pg) succession is studied in detail in the Mudurnu-Göynük basin in northwestern Turkey. To characterize the K-Pg transition in this basin, two stratigraphic sections were measured and sampled at high resolution: the Okçular and the Göynük North sections. These sections were analysed for siderophile trace elements, including Ir and other platinum group elements (PGE: Ru, Rh, Pd, Ir, Pt), bulk stable carbon isotopes, calcareous nannofossils, planktic foraminifera and organic-walled dinoflagellate cysts (dinocysts). In this basin, the upper Maastrichtian consists of monotonous grey mudstones, mostly intercalated with turbidites and the basal Danian is characterised by grey mudstones, that are overlain by a rhythmic alternation of limetones and mudstones. The K-Pg boundary is marked by a thin, reddish ejecta layer, characterized by an enrichment of PGE and an abrupt negative shift in bulk δ13C. This ejecta layer is followed by 15-17cm of thick darker, clayey mudstone, the so-called boundary clay. The upper Maastrichtian to lower Danian interval displays a succession of biostratigraphic events, such as the globally recognized spike of the dinocyst taxon Manumiella druggii in the Maastrichtian, followed by the extinction of Cretaceous planktic foraminifera at the K-Pg boundary, and a subsequent rapid succession of First Occurrences (FOs) of dinocysts, such as Senoniasphaera inornata, Membranilarnacia? tenella and Damassadinium californicum and planktic foraminifera, including Parvularugoglobigerina eugubina and Subbotina triloculinoides in the lower Danian. Overall the sedimentological and palaeontological data suggest that the studied sites in the Mudurnu-Göynük basin were deposited under normal marine conditions, likely in an outer neritic to upper bathyal environment. Our geochemical and biostratigraphic characterization of the K-Pg boundary transition in the Mudurnu-Göynük basin provides a new K-Pg boundary record in the Northern branch of the Neo-Tethys and allows a detailed comparison with K-Pg boundary sections worldwide

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Section: Introductionmentioning

confidence: 99%

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Açıkalın¹,

Vellekoop

Ocakoğlu

et al. 2015

Cretaceous Research

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“…The fossil record is the primary archive for paleobiodiversity data but is now being subjected to intense and rigorous numerical scrutiny, revealing the clear impact of the GOBE. One of the first attempts to quantify the history of life was that of Phillips (1860) who published, within a year of Darwin's publication of 'On the Origin of Species,' a semi-quantitative analysis of the biodiversity of Phanerozoic life. Phillip's curve defined three stratigraphically-based marine faunas, the first corresponding to 'Palaeozoic life'.…”

Section: Introductionmentioning

confidence: 99%

The Great Ordovician Biodiversification Event: Reviewing two decades of research on diversity's big bang illustrated by mainly brachiopod data

2015

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“…The term "Dinosaur" was invented by Richard Owen in 1841 with the recognition of nine genera at that time. Phillips (1841Phillips ( , 1860 recognized major and significant divisions of stratigraphy, labeling them as Paleozoic, Mesozoic, and Cenozoic. He adopted the name Paleozoic from Adam Sedgwick, who had coined it to combine his Cambrian with Roderick Murchison's Silurian.…”

Section: The Importance Of the Boundary And The Faunal Changementioning

confidence: 99%

The unique significance and origin of the Cretaceous-Tertiary boundary:Historical context and burdens of proof

Ryder

1996

The Cretaceous-Tertiary Event and Other Catastrophes in Earth History

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Life on the earth its origin and succession / by John Phillips.

Abstract: ai

Cited by 58 publications

References 0 publications

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

The Great Ordovician Biodiversification Event: Reviewing two decades of research on diversity's big bang illustrated by mainly brachiopod data

The unique significance and origin of the Cretaceous-Tertiary boundary:Historical context and burdens of proof

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