000071105 001__ 71105
000071105 005__ 20190709135520.0
000071105 0247_ $$2doi$$a10.1016/j.jafrearsci.2017.07.011
000071105 0248_ $$2sideral$$a100746
000071105 037__ $$aART-2017-100746
000071105 041__ $$aeng
000071105 100__ $$0(orcid)0000-0003-4632-533X$$aArenillas, Ignacio$$uUniversidad de Zaragoza
000071105 245__ $$aRevalidation of the genus Chiloguembelitria Hofker: Implications for the evolution of early Danian planktonic foraminifera
000071105 260__ $$c2017
000071105 5060_ $$aAccess copy available to the general public$$fUnrestricted
000071105 5203_ $$aGuembelitria is the only planktonic foraminiferal genus whose survival from the mass extinction event of the Cretaceous/Paleogene (K/Pg) boundary has been clearly proven. The evolution of Guembelitria after the K/Pg boundary led to the appearance of two guembelitriid lineages in the early Danian: one biserial, represented by Woodringina and culminating in Chiloguembelina, and the other trochospiral, represented by Trochoguembelitria and culminating in Globoconusa. We have re-examined the genus Chiloguembelitria, another guembelitriid descended from Guembelitria and whose taxonomic validity had been questioned, it being considered a junior synonym of the latter. Nevertheless, Chiloguembelitria differs from Guembelitria mainly in the wall texture (pustulate to rugose vs. pore-mounded) and the position of the aperture (umbilical-extraumbilical to extraumbilical vs. umbilical). Chiloguembelitria shares its wall texture with Trochoguembelitria and some of the earliest specimens of Woodringina, suggesting that it played an important role in the evolution of early Danian guembelitriids, as it seems to be the most immediate ancestor of both trochospiral and biserial lineages. Morphological and morphostatistical analyses of Chiloguembelitria discriminate at least five species: Chg. danica, Chg. irregularis, and three new species: Chg. hofkeri, Chg. trilobata and Chg. biseriata.
000071105 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E05$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2015-64422-P$$9info:eu-repo/grantAgreement/ES/UZ/UZ2015-CIE-02
000071105 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000071105 590__ $$a1.532$$b2017
000071105 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b122 / 189 = 0.646$$c2017$$dQ3$$eT2
000071105 592__ $$a0.681$$b2017
000071105 593__ $$aGeology$$c2017$$dQ2
000071105 593__ $$aEarth-Surface Processes$$c2017$$dQ2
000071105 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000071105 700__ $$0(orcid)0000-0003-0063-8752$$aArz, José A.$$uUniversidad de Zaragoza
000071105 700__ $$0(orcid)0000-0001-7302-5901$$aGilabert, Vicente$$uUniversidad de Zaragoza
000071105 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000071105 773__ $$g134 (2017), 435-456 [72 p.]$$pJ. Afr. earth sci.$$tJournal of African Earth Sciences$$x1464-343X
000071105 8564_ $$s12481327$$uhttps://zaguan.unizar.es/record/71105/files/texto_completo.pdf$$yPostprint
000071105 8564_ $$s12060$$uhttps://zaguan.unizar.es/record/71105/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000071105 909CO $$ooai:zaguan.unizar.es:71105$$particulos$$pdriver
000071105 951__ $$a2019-07-09-11:57:06
000071105 980__ $$aARTICLE