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Marine mammals through time: when less is more in studying palaeodiversity.

ABSTRACT: The validity of biological explanations of patterns of palaeodiversity has been called into question owing to an apparent correlation of diversity with the amount of sedimentary rock preserved. However, this claim has largely been based on comprehensive estimates of global marine Phanerozoic diversity, thus raising the question of whether a similar bias applies to the records of smaller, well-defined taxonomic groups. Here, new data on European Caenozoic marine sedimentary rock outcrop area are presented and compared with European occurrences of three groups of marine mammals (cetaceans, pinnipedimorphs and sirenians). Limited evidence was found for a correlation of outcrop area with marine mammal palaeodiversity. In addition, similar patterns were identified in the cetacean and pinnipedimorph diversity data. This may point to the preservation of a genuine biological signal not overwhelmed by geological biases in the marine mammal diversity data, and opens the door to further analyses of both marine mammal evolution and geological bias in other small and well-defined groups of taxa.

SUBMITTER: Marx FG

PROVIDER: S-EPMC2664371 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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Marine mammals through time: when less is more in studying palaeodiversity.

Marx Felix G FG

Proceedings. Biological sciences 20090301 1658

The validity of biological explanations of patterns of palaeodiversity has been called into question owing to an apparent correlation of diversity with the amount of sedimentary rock preserved. However, this claim has largely been based on comprehensive estimates of global marine Phanerozoic diversity, thus raising the question of whether a similar bias applies to the records of smaller, well-defined taxonomic groups. Here, new data on European Caenozoic marine sedimentary rock outcrop area are ...[more]

PMID: 19019787

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Dataset Information

Marine mammals through time: when less is more in studying palaeodiversity.

Publications

Marine mammals through time: when less is more in studying palaeodiversity.

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