File:Ichthyosaurus communis juvenile Skeletal Reconstruction.png

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Original file (4,328 × 1,277 pixels, file size: 947 KB, MIME type: image/png)

Captions

Captions

Skeletal of the tiny juvenile of Ichthyosaurus communis (This image has some speculation
This paleontological restoration is inaccurate, or its accuracy is disputed.

Reason: There is no differentiation between the premaxilla and maxilla, the nasals apparently diverge from each other at their front ends, there's no differentiation between the nasals and lacrimals, the lacrimals form part of the jaw line, there seems to be a maxillary ascending process, the lacrimal appears boomerang-shaped rather than triradiate, the maxilla is involved in the external narial border, there appears to be no quadrate and therefore no jaw joint, there's no differentiation between the dentary and surangular, the angular/splenial extends to the front of the mandible and forms the tip of the jaw while being exposed laterally throughout the entire length, the upper end of the humerus is significantly wider than the lower, there is an anterior accessory epipodial which contacts the humerus with a well-developed preaxial accessory digit distal to it, the posterior margin of the ulna is notched, digit II is not bifurcated, the phalanges do not interlock, and the ischium does not contact the ilium. Compare with: [1], [2]

You may ask further questions about the accuracy of this image at the image review page of Wikiproject Palaeontology on the English Wikipedia. Note that this image may be appropriate to illustrate obsolete paleontological views.

Summary

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Description
English: Skeletal of an Immature Ichthyosaurus communis.
Date
Source Own work
Author Red Natters

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Date/TimeThumbnailDimensionsUserComment
current03:30, 13 July 2022Thumbnail for version as of 03:30, 13 July 20224,328 × 1,277 (947 KB)Red Natters (talk | contribs)Uploaded own work with UploadWizard

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