000117647 001__ 117647
000117647 005__ 20240319081015.0
000117647 0247_ $$2doi$$a10.3897/fr.25.79958
000117647 0248_ $$2sideral$$a128970
000117647 037__ $$aART-2022-128970
000117647 041__ $$aeng
000117647 100__ $$0(orcid)0000-0003-4632-533X$$aArenillas, Ignacio$$uUniversidad de Zaragoza
000117647 245__ $$aHypothesis testing on the planktic foraminiferal survival model after the KPB mass extinction: evidence from Tunisia and Algeria
000117647 260__ $$c2022
000117647 5060_ $$aAccess copy available to the general public$$fUnrestricted
000117647 5203_ $$aA historical review of the extinction, survival, and evolutionary models of planktic foraminifera proposed for the Cretaceous/Paleogene boundary (KPB) mass extinction event sometimes leaves the impression that there is still no conclusive evidence to support any single one of them. Two main models have been put forward: i) catastrophic mass extinction, almost total for some authors, compatible with the geologically instantaneous paleoenvironmental effects of a large meteorite impact (Chicxulub impact, Mexico); and ii) gradual mass extinction, compatible with the paleoenvironmental effects of massive, long-lasting volcanism (Deccan Traps, India). Over the years, a lot of evidence has been proposed supporting one hypothesis or the other, highlighting isotopic (delta O-18, delta C-13, Sr-87/Sr-86) as well as taphonomic, biostratigraphic, quantitative (relative and/or absolute abundance), phylogenetic, and even teratological. We review previous planktic foraminiferal and stable isotope studies, and provide new quantitative and statistical tests from two pelagic sections: the El Kef section (Tunisia), recognized as the most continuous and expanded lowermost Danian section worldwide, and the Sidi Ziane section (Algeria), affected by relevant hiatus in the lower Danian. The results indicate that all the latest Maastrichtian planktic foraminiferal species except those of Guembelitria went extinct exactly at the KPB, supporting the hypothesis of an almost total extinction. In the light of this new evidence, we maintain that the Maastrichtian planktic foraminiferal specimens found worldwide in lower Danian samples could be the result of similar reworking and vertical mixing processes to those at El Kef and Sidi Ziane.
000117647 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E33-20R$$9info:eu-repo/grantAgreement/ES/MINECO/BES-2016-077800$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-093890-B-I00
000117647 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000117647 590__ $$a1.4$$b2022
000117647 592__ $$a0.36$$b2022
000117647 591__ $$aPALEONTOLOGY$$b30 / 54 = 0.556$$c2022$$dQ3$$eT2
000117647 593__ $$aPaleontology$$c2022$$dQ3
000117647 594__ $$a2.5$$b2022
000117647 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000117647 700__ $$0(orcid)0000-0003-0063-8752$$aArz, Jose A.$$uUniversidad de Zaragoza
000117647 700__ $$aMetsana-Oussaid, Fariza
000117647 700__ $$0(orcid)0000-0001-7302-5901$$aGilabert, Vicente$$uUniversidad de Zaragoza
000117647 700__ $$aBelhai, Djelloul
000117647 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000117647 773__ $$g25, 1 (2022), 43-63$$pFoss. rec.$$tFossil record.$$x2193-0066
000117647 8564_ $$s4005933$$uhttps://zaguan.unizar.es/record/117647/files/texto_completo.pdf$$yVersión publicada
000117647 8564_ $$s2486713$$uhttps://zaguan.unizar.es/record/117647/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000117647 909CO $$ooai:zaguan.unizar.es:117647$$particulos$$pdriver
000117647 951__ $$a2024-03-18-15:33:08
000117647 980__ $$aARTICLE