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Pliosaurus almanzaensis

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Journal Article

A new Pliosaurus species (Sauropterygia, Plesiosauria) from the Upper Jurassic of Patagonia: new insights on the Tithonian morphological disparity of mandibular symphyseal morphology Available to Purchase

José P. O’Gorman, Zulma Gasparini, Luis A. Spalletti
Published: 01 February 2018
Journal of Paleontology (2018) 92 (2): 240–253.
DOI: https://doi.org/10.1017/jpa.2017.82
... for the genus from the Southern Hemisphere, collected from the upper Tithonian (Jurassic) levels of the Vaca Muerta Formation, Neuquén Province, Patagonia. Pliosaurus almanzaensis new species is characterized by two autapomophies: the angular participating in the mandibular symphysis and the occipital condyle...
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View PDF for article title, A new <span class="search-highlight">Pliosaurus</span> species (Sauropterygia, Plesiosauria) from the Upper Jurassic of Patagonia: new insights on the Tithonian morphological disparity of mandibular symphyseal morphology
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Add to Citation Manager for A new <span class="search-highlight">Pliosaurus</span> species (Sauropterygia, Plesiosauria) from the Upper Jurassic of Patagonia: new insights on the Tithonian morphological disparity of mandibular symphyseal morphology
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Cladogram showing the relationships of Pliosaurus almanzaensis n. sp., Vaca Muerta Formation, Cajón de Almanza, Neuquén Province: (1) strict consensus; (2) reduced consensus (excluding P. rossicus, P. patagonicus, DOKDM G/1–2, QM_F51291, Pliosaurus sp. (CAMSM J.35991), and ‘P. irgisensis’). Bremmer support indicated below selected nodes.

Cladogram showing the relationships of Pliosaurus almanzaensis n. sp., Va... Available to Purchase

Published: 01 February 2018
Figure 6 Cladogram showing the relationships of Pliosaurus almanzaensis n. sp., Vaca Muerta Formation, Cajón de Almanza, Neuquén Province: ( 1 ) strict consensus; ( 2 ) reduced consensus (excluding P. rossicus , P. patagonicus , DOKDM G/1–2, QM_F51291, Pliosaurus sp. (CAMSM J.35991
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Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in dorsal view: (1) photograph; (2) interpretive drawing. bo=basioccipital; bs=basisphenoid; d=dentary; ec=ectopterygoid; ep=epipterygoid; hy=hyoid element; inb=indeterminate bone; lpt=lateral ramus of pterygoid; pl=palatine; ps=parasphenoid; qrp=quadrate ramus of pterygoid; rap=retroarticular process; st=sella turcica (pituitary fossa); v=vomer.

Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón d... Available to Purchase

Published: 01 February 2018
Figure 2 Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in dorsal view: ( 1 ) photograph; ( 2 ) interpretive drawing. bo=basioccipital; bs=basisphenoid; d=dentary; ec=ectopterygoid; ep=epipterygoid; hy=hyoid element; inb
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Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in ventral view: (1) photograph; (2) interpretive drawing. an=angular; ar=articular; bo=basioccipital; c=coronoid; d=dentary; ec=ectopterygoid; hy=hyoid element; in=internal naris; inb=indeterminate bone; mx=maxilla; pl=palatine; ps=parasphenoid; pt=pterygoid; sp=splenial; v=vomer.

Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón d... Available to Purchase

Published: 01 February 2018
Figure 3 Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in ventral view: ( 1 ) photograph; ( 2 ) interpretive drawing. an=angular; ar=articular; bo=basioccipital; c=coronoid; d=dentary; ec=ectopterygoid; hy=hyoid element
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Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in occipital view: (1) photograph, (2) interpretive drawing; (3–5) anterior part of the mandibular symphysis, in anterior (3), right lateral (4), and dorsal (5) view; (6) detail of mandibular symphysis showing the paradental plate; (7) detail of trihedral teeth of the right mandibular ramus. btu=basioccipital tuber; ft=functional tooth; oc=occipital condyle; ppl=paradental plate; pt=pterygoid.

Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón d... Available to Purchase

Published: 01 February 2018
Figure 4 Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province, skull and mandible in occipital view: ( 1 ) photograph, ( 2 ) interpretive drawing; ( 3–5 ) anterior part of the mandibular symphysis, in anterior ( 3 ), right lateral ( 4
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Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province: (1, 2) detail of the opening of the Meckelian canal, in anterior (1) and posterior (2) view; (3) detail of braincase in dorsal view; (4) right femur; (5, 6) right forelimb in dorsal view, as photograph (5) and interpretive drawing (6). Afo=adductor fossa; bo=basioccipital; bpp=basipterygoid process; dc=distal carpal; eof=exoccipital-opisthotic facet; int=intermedium; Maop=Meckelian anterior opening; mf=middle furrow; mt=metatarsal; pre=prearticular; prg=prootic groove of basisphenoid; qrp=quadrate ramus of pterygoid; ra=radius; rad=radial; st=sella turcica (pituitary fossa); ul=ulna. Roman numerals indicate carpal numbers.

Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón d... Available to Purchase

Published: 01 February 2018
Figure 5 Pliosaurus almanzaensis n. sp. (MOZ 3728P), Vaca Muerta Formation, Cajón de Almanza, Neuquén Province: ( 1, 2 ) detail of the opening of the Meckelian canal, in anterior ( 1 ) and posterior ( 2 ) view; ( 3 ) detail of braincase in dorsal view; ( 4 ) right femur; ( 5, 6 ) right forelimb
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Valid species of Pliosaurus (following Knutsen et al., 2012 , Benson et ... Available to Purchase

Published: 01 February 2018
Table 1 Valid species of Pliosaurus (following Knutsen et al., 2012 , Benson et al., 2013 , and Gasparini and O’Gorman, 2014 ). Species Stratigraphic provenance Pliosaurus almanzaensis n. sp. Pliosaurus brachydeirus Owen, 1841 upper Tithonian, Patagonia lower
Journal Article

Morphological and phylogenetic aspects of the dentition of Megacephalosaurus eulerti , a pliosaurid from the Turonian of Kansas, USA, with remarks on the cranial anatomy of the taxon Available to Purchase

DANIEL MADZIA, SVEN SACHS, JOHAN LINDGREN
Published: 24 July 2018
Geological Magazine (2019) 156 (7): 1201–1216.
DOI: https://doi.org/10.1017/S0016756818000523
... ( 2014 ). Except for the modifications applied based on the present study (commented on below), the dataset was supplemented by the addition of three taxa: Pliosaurus almanzaensis (O’Gorman, Gasparini & Spalletti, 2018 ), Pliosaurus patagonicus (Gasparini & O’Gorman, 2014 ; O’Gorman...
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View PDF for article title, Morphological and phylogenetic aspects of the dentition of Megacephalosaurus eulerti , a pliosaurid from the Turonian of Kansas, USA, with remarks on the cranial anatomy of the taxon
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