TY - JOUR
T1 - Mesozoic echinoid diversity in Portugal
T2 - Investigating fossil record quality and environmental constraints on a regional scale
AU - Pereira, Bruno Claro
AU - Benton, Michael J
AU - Ruta, Marcello
AU - Mateus, Octávio
N1 - Sem PDF conforme Despacho.
We thank G. Price for providing some of the isotopic data used in this study, Graeme Lloyd for providing some of the R scripts, and Andrew Smith, for his comments on this manuscript. BCP thanks Pablo Palacios, for his many discussions regarding many of the setbacks experienced with the R script, and all people's comments on this work provided during the last EEC meeting. This work was funded by the FCT doctoral training grant SFRH/BD/68891/2010 to BCP. We also thank our Editor, Professor Finn Surlyk, and two referees (Dr manabu Sakamoto and an anonymous reviewer) for their helpful comments. We also thank our Editor, Professor Finn Surlyk, and two referees (Dr Manabu Sakamoto and an anonymous reviewer) for their helpful comments.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - Several analyses of diversity through geological time use global, synoptic databases, and this practice often makes it difficult to distinguish true signals in changing diversity from regional-scale sampling and/or geological artefacts. Here we investigate how echinoid diversity changed through the Mesozoic of the Lusitanian basin in Portugal based on a comprehensive, revised database, and seek to distinguish biological signal from geological or environmental constraints. The observed diversity pattern is far from having a defined trend, showing many fluctuations that appear to be linked with gaps in the geological record. This study revealed that, independently of the method used, whether correlation tests or model fitting, the diversity signal is not completely explained by the studied sampling proxies. Among the different proxies, marine facies variation in combination with outcrop area best explains the palaeodiversity curve.
AB - Several analyses of diversity through geological time use global, synoptic databases, and this practice often makes it difficult to distinguish true signals in changing diversity from regional-scale sampling and/or geological artefacts. Here we investigate how echinoid diversity changed through the Mesozoic of the Lusitanian basin in Portugal based on a comprehensive, revised database, and seek to distinguish biological signal from geological or environmental constraints. The observed diversity pattern is far from having a defined trend, showing many fluctuations that appear to be linked with gaps in the geological record. This study revealed that, independently of the method used, whether correlation tests or model fitting, the diversity signal is not completely explained by the studied sampling proxies. Among the different proxies, marine facies variation in combination with outcrop area best explains the palaeodiversity curve.
KW - Portugal
KW - PHANEROZOIC MARINE DIVERSITY
KW - PERMIAN-TRIASSIC BOUNDARY
KW - ROCK OUTCROP AREA
KW - SAMPLING BIASES
KW - TAXONOMIC DIVERSITY
KW - EXPOSURE AREA
KW - WESTERN INDIA
KW - LAZARUS TAXA
KW - OXYGEN
KW - BIODIVERSITY
U2 - 10.1016/j.palaeo.2015.02.014
DO - 10.1016/j.palaeo.2015.02.014
M3 - Article
SN - 0031-0182
VL - 424
SP - 132
EP - 146
JO - Palaeogeography, Palaeoclimatology, Palaeoecology
JF - Palaeogeography, Palaeoclimatology, Palaeoecology
ER -
