Miocaperea
From Infogalactic: the planetary knowledge core
| Miocaperea Temporal range: late Miocene
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Miocaperea
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†M. pulchra Bisconti, 2012 (type) |
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Miocaperea is an extinct genus of pygmy right whale from the late Miocene Pisco Formation of Peru. Its type species is Miocaperea pulchra.[1]
Evolution and significance
The discovery of Miocaperea is significant because neobalaenines were previously unknown in the fossil record, except for an isolated petrosal (ear bone) from late Miocene-aged deposits in Australia.[2] A previous study placed the divergence date of Neobalaeninae from other mysticetes at about 23 million years,[3] and the age of Miocaperea lends credence to the notion of an origin for Neobalaeninae deep in the early Miocene.
References
- ↑ Bisconti, M. 2012. Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae). Zoological Journal of the Linnean Society 166: 876-911.
- ↑ Fitzgerald, E.M.G. 2012. Possible neobalaenid from the Miocene of Australia implies a long evolutionary history for the pygmy right whale Caperea marginata (Cetacea, Mysticeti). Journal of Vertebrate Paleontology 32:976-980.
- ↑ Sasaki T, Nikaido M, Hamilton H et al. (2005) Mitochondrial phylogenetics and evolution of mysticete whales. Systematic Biology 54(1): 77–90.
