July 16, 2018

Global mid-Cretaceous biogeography: A network-based approach

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Investigating the spatial structure of the marine biodiversity has long been an important area of biological and palaeontological research.  Biogeographic studies on fossil organisms have contributed to our current understanding of the relationship between plate tectonics, Earth’s climate and the evolution of life. However, the impact of those studies extends beyond basic biogeographic questions to include, for example, conservation biology, regional geology, and stratigraphy. In this study we tested the traditional biogeographic scenario of the Albian Ammonoids using a network-based approach. The results represent the first data–driven delimitation of bioprovinces for the

December 26, 2017

Southern Caribbean Brachiopods off Colombia

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Modern ad fossil brachiopod faunas from Colombia have not been studied extensively. This paper examines recent material collected from deep-water coral environments (90–250 m) located off the San Bernardo Archipelago. The studied material comprises four species, two of which are new records for Colombia: Terebratulina cailleti Crosse, 1865 and Tichosina plicata Cooper, 1977. The genus Tichosina comprises twenty extant species occurring across the Caribbean.  The species Tichosina bullisi Cooper, 1977 and Tichosina dubia Cooper, 1977 were synonymized with Tichosina plicata Cooper, 1977.

October 1, 2017

Fossil Brachiopods from Colombia

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During the last few years a series of studies on the modern and fossil brachiopods from Colombia have been carried out. The new data will help to elucidate the biogeographic history of the Andean region, the structure and palaeoecology of its marine communities. Currently, I am working on Lower Cretaceous, Carboniferous  (with Luis Obregon, UNAL) and Devonian faunas (with Yerly Garcia, UPN).

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