Ophthalmosaurinae





































Ophthalmosaurinae
Temporal range: Middle Jurassic-Early Cretaceous, 171.6–99.6 Ma

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N










OphthalmosaurusIcenius-NaturalHistoryMuseum-August23-08.jpg

Ophthalmosaurus icenicus skeleton

Scientific classification edit
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Order:
†Ichthyosauria
Family:
†Ophthalmosauridae
Subfamily:
†Ophthalmosaurinae
Baur, 1887
Genera

†Acamptonectes

†Cryopterygius

†Gengasaurus

†Janusaurus

†Leninia

†Mollesaurus

†Ophthalmosaurus

†Palvennia

†Undorosaurus



Ophthalmosaurinae is an extinct subfamily of ophthalmosaurid thunnosaur ichthyosaurs from the Middle Jurassic to the late Early Cretaceous (Bajocian - Albian) of Europe, North America and South America. Currently, the oldest and the basalmost known ophthalmosaurine is Mollesaurus from the early Bajocian of Argentina. Ophthalmosaurines were characterized by a large extracondylar area of the basioccipital in form of a thick and concave peripheral band, posterodistally deflected ulnar facet of the humerus, large ulna with concave and edgy posterior surface and ischiopubis with obturator foramen.[1]



Phylogeny





Ophthalmosaurus


Ophthalmosaurinae was named in 1887 by George H. Baur. It is a stem-based taxon defined phylogenetically for the first time by Fischer et al. (2012) as "all taxa closer to Ophthalmosaurus icenicus than to Platypterygius hercynicus". The cladogram below follows Fischer et al. 2012.[1]


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Ophthalmosauridae 












 

Arthropterygius chrisorum
 
 












 

Platypterygiinae
 
 Ophthalmosaurinae 












 

Mollesaurus periallus
 
 












 

Ophthalmosaurus icenicus
 
 












 

Baptanodon natans
 
 

Acamptonectes densus
 
 
 
 
 
 


References





  1. ^ ab Valentin Fischer; Michael W. Maisch; Darren Naish; Ralf Kosma; Jeff Liston; Ulrich Joger; Fritz J. Krüger; Judith Pardo Pérez; Jessica Tainsh; Robert M. Appleby (2012). "New Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic–Cretaceous Boundary". PLoS ONE. 7 (1): e29234. doi:10.1371/journal.pone.0029234. PMC 3250416. PMID 22235274..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}














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