Flamingo-like footprints and the problem of addressing biological diversity in the past
| Autor: | Lucas Raul Fernandez Piana, Verónica Krapovickas, Rocío Belén Vera, Maria de Los Angeles Ordoñez, Martin Ezequiel Farina |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
010506 paleontology STATISTICAL APPROACHES Ecology ICHNOLOGY Biodiversity Morphological variation ANATID Trace fossil 010603 evolutionary biology 01 natural sciences Paleontología Ciencias de la Tierra y relacionadas con el Medio Ambiente Geography Ichnology BIOLOGICAL DIVERSITY PHOENOPTERID General Agricultural and Biological Sciences CIENCIAS NATURALES Y EXACTAS 0105 earth and related environmental sciences |
| Zdroj: | Historical Biology. 33:912-926 |
| ISSN: | 1029-2381 0891-2963 |
| DOI: | 10.1080/08912963.2019.1669024 |
| Popis: | In this work we present new avian fossil footprints preserved in the Vinchina Formation at del Yeso Creek, La Rioja, Argentina. To understand the morphological variation of very similar footprints not organizaed in trackways, we use statistical analyses combined with taphonomic analyses, resulting in a more refined classification of the ichnotaxa. Accordingly, the monospecific ichnogenus Phoenicopterichnum rector Aramayo and Manera de Blanco 1987 assigned to flamingoes, has two new ichnospecies, P. lucioi isp. nov. and P. vinchinaensis isp. nov. In addition, footprints produced by anatids, Anatipeda ips, are also reported. The predictive clustering analysis allow us to propose new ichnospecies by identifying which variables are of statistical significance to differentiate morphotypes. We defined two taphonomic groups and plotted it on the cluster analysis, inferring that the taphonomic input do not influence the morphologic analysis. Finally, we recommend testing statistically which variables are in fact of more influence in distinguishing morphotypes and/or ichnotaxa. That increase the value of paleobiological and/or ichnotaxonomical interpretations. By using these tools, we can achieve a better identification of footprint morphologies and consequently their trackmakers and the assignation of ichnotaxa to help address biological diversity in the past. Fil: Farina, Martin Ezequiel. Universidad de Buenos Aires; Argentina Fil: Krapovickas, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Fernandez Piana, Lucas Raul. Universidad de San Andrés; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vera, Rocío Belén. Universidad de Buenos Aires; Argentina Fil: Ordoñez, Maria de Los Angeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina |
| Databáze: | OpenAIRE |
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