Gema Alcalde

Gema Alcalde
The National Museum of Natural Sciences · Paleontology

PhD

About

14
Publications
3,543
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107
Citations
Introduction
My Ph.D. was focused on extant and extinct ruminant ecology and ecomorphology. I developed several climatic methods to infer, from local to regional scale, the paleoenvironment present in some Villafranchian fossil sites from Spain and France. Nowadays I am focused on extending these methods to other sites from Western Europe, in order to draw a bioclimatic spatio-temporal frame during that time.
Additional affiliations
January 2013 - July 2015
The National Museum of Natural Sciences
Position
  • Collaborator
October 2005 - November 2005
Complutense University of Madrid
Position
  • Guest researcher
September 2005 - December 2012
The National Museum of Natural Sciences
Position
  • PhD Student

Publications

Publications (14)
Article
Corral de Lobato, a karstic site in the area of Molina de Aragón has been studied in a preliminary way. Even though there are not many Neogene karstic sites in the Iberian Chain, they occur in four clusters, with ages ranging from latest middle Miocene (MN7/8) to early Pleistocene (MN17). Correlations between these clusters and the reference strati...
Article
Debris-flow hosted assemblages dominated by mammalian remains are very scarce in the fossil record and few examples are reported. Herein we present a detailed taphonomic study of Somosaguas-North (Madrid Basin, Spain), a Middle Miocene mammalian-dominated site embedded in debris-flow deposits, in order to increase our knowledge of themode of format...
Article
Full-text available
The increasing availability of published evolutionary trees and phylogenetic methods has changed the way we tackle the study of evolution. In this sense, ruminants have become one paradigmatic object of study due to their ecological variety and well-known evolutionary history. The last decades of ruminant research have benefited from diverse phylog...
Article
Villafranchian faunas were widely spread throughout the European continent during the Plio-Pleistocene. Ungulates, and particularly ruminants, are very well represented in most of the localities of this period. The fossil site of Tegelen (Province of Limburg, the Netherlands) is a classical Villafranchian locality where cervids are especially abund...
Article
Full-text available
In the present study we analyze the microwear of the species included in the lineage Armantomys aragonensis-A. tricristatus of two samples from two middle Miocene localities from the Madrid Basin (El Cañaveral and Casa Montero). The methodological part of the study compares light stereomicroscope photographs from resin casts and Environmental Scann...
Article
Full-text available
As a consequence of the growth of the Antarctic ice-sheet during the middle Miocene, a global decrease of temperatures and an associated increase in aridity provoked several environmental changes all around the world. Such environmental variations can be detected in the continental record of the mammalian prey community structure using a synecologi...
Article
Integration between phylogenetic systematics and paleontological data has proved to be an effective method for identifying periods that lack fossil evidence in the evolutionary history of clades. In this study we aim to analyze whether there is any correlation between various ecomorphological variables and the duration of these underrepresented por...
Article
Full-text available
Integration between phylogenetic systematics and paleontological data has proved to be an effective method for identifying periods that lack fossil evidence in the evolutionary history of clades. In this study we aim to analyze whether there is any correlation between various ecomorphological variables and the duration of these underrepresented por...
Article
Full-text available
This work offers a tentative interpretation of the possible coat colour pattern of the Miocene bovid genus Tethytragus. The method used includes a maximum likelihood reconstruction analysis of data collected from all the 55 species of extant ruminants pertaining to the monophyletic group including the subfamilies Aepycerotinae, Alcelaphinae, Hippot...
Article
Full-text available
The Cerro de los Batallones (Los Batallones Butte) is located in the central-northern area of the Madrid Basin, central Spain. Nine vertebrates localities containing a large variety of mammals of Upper Vallesian Age (Late Miocene) have been found associated with the sediments forming the butte. From bottom to top, these sediments consist of magnesi...

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