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The microstructure of the rostrum solidum of Jurassic belemnites is compared with that of Sepia cuttlebones, in order to examine possible convergences in their style of growth. For this study, transmitted and polarized light, cathodoluminescence[...]texto impreso
Garcia Joral, Fernando ; Baeza-Carratalá, José Francisco ; Reolid, Matías | Czech Geological Survey | 2017-06-17The Pliensbachian-Toarcian transition was a period of changes in long-term environmental conditions leading up to the Early Toarcian Mass Extinction Event (ETMEE), which resulted in a noticeable extinction and turnover in the marine biota. The w[...]texto impreso
Benito Moreno, Mª Isabel ; Reolid, Matías ; Viedma Molero, Cristóbal | Universidad Complutense de Madrid | 2016-10Calcitic belemnite rostra are usually employed to perform paleoenvironmental studies based on geochemical data. However, several questions, such as their original porosity and microstructure, remain open, despite they are essential to make accur[...]texto impreso
Abundant sulfate mineralizations are recorded in the Upper Pliensbachian-Lower Toarcian marly-limestones and marls of La Cerradura section (Betic Cordillera, South Spain). These mineralizations are celestine concretions (6–41?cm in diameter), su[...]
