File:Platysomus gibbosus.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Platysomus_gibbosus.jpg (367 × 250 pixels, file size: 46 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description Fig. 137.—Platysomus gibbosus, a "heterocercal" Ganoid, from the Middle Permian of Russia. Sharks. Not only are the Ganoids still the predominant group of Fishes, but all the known forms possess the unsymmetrical ("heterocercal") tail which is so characteristic of the Palæozoic Ganoids. Most of the remains of the Permian Fishes have been obtained from the "Marl-slate" of Durham and the corresponding "Kupfer-schiefer" of Germany, on the horizon of the Middle Permian; and the principal genera of the Ganoids are Palœoniscus and Platysomus (fig. 137).
Date
Source http://www.gutenberg.org/files/14279/14279-h/14279-h.htm
Author H. ALLEYNE NICHOLSON

Licensing

[edit]
Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current10:05, 2 August 2008Thumbnail for version as of 10:05, 2 August 2008367 × 250 (46 KB)FunkMonk (talk | contribs){{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }}
16:35, 30 July 2008Thumbnail for version as of 16:35, 30 July 2008367 × 250 (23 KB)FunkMonk (talk | contribs)== Summary == {{Information |Description=Fig. 137.—Platysomus gibbosus, a "heterocercal" Ganoid, from the Middle Permian of Russia. Sharks. Not only are the Ganoids still the predominant group of Fishes, but all the known forms possess the unsymmetrical

You cannot overwrite this file.

The following page uses this file:

File usage on other wikis

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Platysomus_gibbosus.jpg&oldid=631214924"