Skip to main content
×
Home
    • Aa
    • Aa

A new elasmosaurid from the early Maastrichtian of Angola and the implications of girdle morphology on swimming style in plesiosaurs

  • R. Araújo (a1) (a2), M.J. Polcyn (a1), A.S. Schulp (a3), O. Mateus (a2) (a4), L.L. Jacobs (a1), A. Olímpio Gonçalves (a5) and M.-L. Morais (a5)...
Abstract
Abstract

We report here a new elasmosaurid from the early Maastrichtian at Bentiaba, southern Angola. Phylogenetic analysis places the new taxon as the sister taxon to Styxosaurus snowii, and that clade as the sister of a clade composed of (Hydrotherosaurus alexandrae (Libonectes morgani + Elasmosaurus platyurus)). The new taxon has a reduced dorsal blade of the scapula, a feature unique amongst elasmosaurids, but convergent with cryptoclidid plesiosaurs, and indicates a longitudinal protraction-retraction limb cycle rowing style with simple pitch rotation at the glenohumeral articulation. Morphometric phylogenetic analysis of the coracoids of 40 eosauropterygian taxa suggests that there was a broad range of swimming styles within the clade.

Copyright
Corresponding author
*Corresponding author. Email: rmaraujo@smu.edu
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

G.W Storrs ., 1997. Morphological and taxonomic clarification of the genus Plesiosaurus . In: J.M. Callaway , E Nicholls . (eds): Ancient Marine Reptiles. Academic Press(San Diego): 145190.

C. Strganac , L.L. Jacobs , M.J. Polcyn , O. Mateus , T.S. Myers , J. Salminen , S.R. May , R. Araújo , K.M. Ferguson , A.O. Gonçalves , M.-L. Morais , A.S. Schulp & T da Silva Tavares ., in press.Geological Setting and Paleoecology of the Upper Cretaceous Bench 19 Marine Vertebrate Bonebed at Bentiaba, Angola. Netherlands Journal of Geosciences.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Netherlands Journal of Geosciences
  • ISSN: 0016-7746
  • EISSN: 1573-9708
  • URL: /core/journals/netherlands-journal-of-geosciences
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Type Description Title
WORD
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 Word (67 KB)
67 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (403 KB)
403 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (394 KB)
394 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (384 KB)
384 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (272 KB)
272 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (356 KB)
356 KB
WORD
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 Word (59 KB)
59 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (348 KB)
348 KB
WORD
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 Word (59 KB)
59 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (399 KB)
399 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (1.2 MB)
1.2 MB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (376 KB)
376 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (170 KB)
170 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (392 KB)
392 KB
UNKNOWN
Supplementary Materials

Avaujo supplementary material
Supplementary figures

 Unknown (4.9 MB)
4.9 MB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (388 KB)
388 KB
WORD
Supplementary Materials

Araújo supplementary material
Table S1

 Word (131 KB)
131 KB
PDF
Supplementary Materials

Supplementary Material
Supplementary information supplied by authors.

 PDF (392 KB)
392 KB

Metrics

Full text views

Total number of HTML views: 1
Total number of PDF views: 13 *
Loading metrics...

Abstract views

Total abstract views: 146 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 23rd August 2017. This data will be updated every 24 hours.