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Large-body impact and extinction in the Phanerozoic.
Paleobiology. 1992 Winter; 18(1):80-8.P

Abstract

The kill curve for Phanerozoic marine species is used to investigate large-body impact as a cause of species extinction. Current estimates of Phanerozoic impact rates are combined with the kill curve to produce an impact-kill curve, which predicts extinction levels from crater diameter, on the working assumption that impacts are responsible for all "pulsed" extinctions. By definition, pulsed extinction includes the approximately 60% of Phanerozoic extinctions that occurred in short-lived events having extinction rates greater than 5%. The resulting impact-kill curve is credible, thus justifying more thorough testing of the impact-extinction hypothesis. Such testing is possible but requires an exhaustive analysis of radiometric dating of Phanerozoic impact events.

Authors+Show Affiliations

Raup DM
Department of the Geological Sciences, University of Chicago, Illinois 60637.

MeSH

Biological EvolutionFossilsGeological PhenomenaGeologyModels, TheoreticalOceans and SeasPaleontologySolar SystemTime Factors

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

11537745

Citation

Raup, D M.. "Large-body Impact and Extinction in the Phanerozoic." Paleobiology, vol. 18, no. 1, 1992, pp. 80-8.
Raup DM. Large-body impact and extinction in the Phanerozoic. Paleobiology. 1992;18(1):80-8.
Raup, D. M. (1992). Large-body impact and extinction in the Phanerozoic. Paleobiology, 18(1), 80-8.
Raup DM. Large-body Impact and Extinction in the Phanerozoic. Paleobiology. 1992;18(1):80-8. PubMed PMID: 11537745.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Large-body impact and extinction in the Phanerozoic. A1 - Raup,D M, PY - 1992/1/1/pubmed PY - 2001/9/11/medline PY - 1992/1/1/entrez KW - NASA Discipline Exobiology KW - NASA Discipline Number 52-40 KW - NASA Program Exobiology KW - Non-NASA Center SP - 80 EP - 8 JF - Paleobiology JO - Paleobiology VL - 18 IS - 1 N2 - The kill curve for Phanerozoic marine species is used to investigate large-body impact as a cause of species extinction. Current estimates of Phanerozoic impact rates are combined with the kill curve to produce an impact-kill curve, which predicts extinction levels from crater diameter, on the working assumption that impacts are responsible for all "pulsed" extinctions. By definition, pulsed extinction includes the approximately 60% of Phanerozoic extinctions that occurred in short-lived events having extinction rates greater than 5%. The resulting impact-kill curve is credible, thus justifying more thorough testing of the impact-extinction hypothesis. Such testing is possible but requires an exhaustive analysis of radiometric dating of Phanerozoic impact events. SN - 0094-8373 UR - https://www.unboundmedicine.com/medline/citation/11537745/Large_body_impact_and_extinction_in_the_Phanerozoic_ DB - PRIME DP - Unbound Medicine ER -