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New aristonectine e...
New aristonectine elasmosaurid plesiosaur specimens from the Early Maastrichtian of Angola and comments on paedomorphism in plesiosaurs
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Araujo, R. (author)
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Polcyn, M. J. (author)
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- Lindgren, Johan (author)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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Jacobs, L. L. (author)
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Schulp, A. S. (author)
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Mateus, O. (author)
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Olimpio Goncalves, A. (author)
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Morais, M-L. (author)
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(creator_code:org_t)
- 2015-02-18
- 2015
- English.
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In: Netherlands Journal of Geosciences-Geologie en Mijnbouw. - : Cambridge University Press (CUP). - 0016-7746 .- 1573-9708. ; 94:1, s. 93-108
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- New elasmosaurid plesiosaur specimens are described from the Early Maastrichtian of Angola. Phylogenetic analyses reconstruct the Angolan taxon as an aristonectine elasmosaurid and the sister taxon of an unnamed form of similar age from New Zealand. Comparisons also indicate a close relationship with an unnamed form previously described from Patagonia. All of these specimens exhibit an ostensibly osteologically immature external morphology, but histological analysis of the Angolan material suggests an adult with paedomorphic traits. By extension, the similarity of the Angolan, New Zealand and Patagonian material indicates that these specimens represent a widespread paedomorphic yet unnamed taxon.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Keyword
- Paedomorphism
- plesiosaurs
- marine reptiles
- Africa
- Cretaceous
- histology
Publication and Content Type
- art (subject category)
- ref (subject category)
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