Browsing by Author "Hirsch, Francis"
Now showing items 1-6 of 6
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The case of the carnian (triassic) conodont genus metapolygnathus hayashi
Kılıç, Ali Murat; Plasencia, Pablo; Ishida, Keisuke; Hirsch, Francis (China Univ Geosciences, 2015)Successive evolutionary trends control the genera Paragondolella Mosher and Metapolygnathus Hayashi over the about 20 Ma long Aegean-Tuvalian timespan. In consideration of their evolutionary criteria, these genera have ... -
Comments on: a review of the evolution, biostratigraphy, provincialısm and diversity of middle and early late triassic conodonts discussion
Plasencia, Pablo; Marquez-Aliaga, Ana; Perez-Valera, Juan Alberto; Baud, Aymon; Sudar, Milan; Kılıç, Ali Murat; Hirsch, Francis (Wiley, 2016)CHEN et al. (2016) reviewed and re-evaluated the taxonomy, diversity, evolutionary lineages and stratigraphical distributions of Middle and early Late Triassic conodonts. A total of 24 genera were assigned to 2 families and ... -
Conodonts versus triassic climatic and eustatic changes
Kılıç, Ali Murat; Plasencia, Pablo; Ishida, Keisuke; Guex, Jean; Hirsch, Francis (Elsevier Science Bv, 2015)From astronomical, sedimentological, paleo-geographical and geochemical points of view, there is a general agreement that the Triassic period was exceptionally warm. The 51 MA long Triassic period started during the Siberian ... -
The evolutionary trend of platform denticulation in middle triassic acuminate gondolellidae (conodonta)
Plasencia, Pablo; Kılıç, Ali Murat; Baud, Aymon; Sudar, Milan; Hirsch, Francis (Tubitak Scientific & Technical Research Council Turkey, 2018)Acuminate Middle-Late Triassic Gondolellidae are characterized by an ellipsoid platform with a central to posterior amygdaloid basal cavity and an octomembrate apparatus of gondolelloid affinity. Starting with a neospathodiform ... -
Proteromorphosis of Neospathodus (Conodonta) during the Permian-Triassic crisis and recovery
Kiliç, Ali Murat; Plasencia, Pablo; Ishida, Keisuke; Guex, Jean; Hirsch, Francis (Elsevier Masson SAS, 2016)The Permian-Triassic evolution of platform conodonts (Gondolellidae) consists mainly of the development of the carina and the platform. During the sublethal environmental stress conditions subsequent to the Permian-Triassic ... -
Siberigondolella gen. nov., a Boreal early Triassic lanceolate conodont
Kılıç, Ali Murat; Hirsch, Francis (Tubitak Scientific & Technical Research Council Turkey, 2019)In the Lower Triassic, at the time that segminate gondolellid conodonts defined the Tethyan regions, endemic segminiplanate gondolellid conodonts resembling the genus "Neogondolella" dwelled in the northern latitudes. ...
