File:The Quarterly journal of the Geological Society of London (13204955875).jpg

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ANNIVERSARY ADDRESS OF THE PRESIDENT. 55
the last touch of the femur or propodial element of the limb, and,
thrust out of the epipodium, it appears henceforth to belong to the
Fig. 9. — Hind limb of Sauranodon, Marsh.
T, the tibia ; i, the intermedium ; F, the fibula ; t, os tibiale ; ./, fibulare
c, c, ossa centralia.
mesopodium, as 0. C. Marsh has remarked in Sauranodon. From
this arrangement to such a mesopodium (carpus, tarsus) as that of
the living Cryptobranchus japonicus (fig. 13), or of the common land-
Salamander (figs. 11, 12), is but a small step.
Another morphological question upon which the Enaliosaurian
paddles throw light is the primitive duality or singleness of the os
centrale of the carpus or tarsus (mesopodium), about which opinions
differ; for in some extant Amphibia the carpus (tarsus) contains one
os centrale, while in others two ossa centralia are present ; and this
difference has been occasionally observed in the right and left carpus
of the same individual. Now in Sauranodon (fig. 9), Ichthyosaurus
(fig. 10), Pliosaurus portlandicus, Owen (fig. 8), and, I believe, also
in Plesiosaurus Manseli, the proximal row in the mesopodium (carpus
or tarsus) comprises four ossicles, of which, since the two lateral
ossicles must by their relations be the os tibiale, os fibulare (os

radiale, os ulnare), the two middle cannot be other than two ossa
Date
Source https://www.flickr.com/photos/biodivlibrary/13204955875
Author Geological Society of London
Full title
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The Quarterly journal of the Geological Society of London.
Page ID
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36929360
Item ID
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113681 (Find related Wikimedia Commons images)
Title ID
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51125
Page numbers
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Page 55
Names
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NameFound:Amphibia NameConfirmed:Amphibia EOLID:1552 NameBankID:2476588 NameFound:Cryptobranchus japonicus NameConfirmed:Cryptobranchus japonicus NameFound:Ichthyosaurus NameConfirmed:Ichthyosaurus EOLID:13226022 NameBankID:4204055 NameFound:Plesiosaurus NameConfirmed:Plesiosaurus EOLID:4532515 NameBankID:4302234 NameFound:Pliosaurus portlandicus NameConfirmed:Pliosaurus portlandicus NameFound:Sauranodon NameConfirmed:Sauranodon NameBankID:4336326
BHL Page URL
InfoField
https://www.biodiversitylibrary.org/page/36929360
Page type
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Text
Flickr sets
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  • The Quarterly journal of the Geological Society of London. v. 39 (1883).
Flickr tags
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Flickr posted date
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16 March 2014
Credit
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This file comes from the Biodiversity Heritage Library.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.


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26 August 2015

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current12:41, 26 August 2015Thumbnail for version as of 12:41, 26 August 20151,196 × 2,076 (329 KB) (talk | contribs)== {{int:filedesc}} == {{BHL | title = The Quarterly journal of the Geological Society of London. | source = http://www.flickr.com/photos/biodivlibrary/13204955875 | description = ANNIVERSARY ADDRESS OF THE PRESIDENT. 55 <br> the last touch of the femu...

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