Jawless Fish

[Charlotte787]

Hi guys! I found the attached Silurian and Devonian fish online and would appreciate your opinions on the specimens.

 

The first is a Galeaspid, Polybranchiaspis, from Yunnan, China (43mm in size) and the second is an Osteostracan, Tremataspis schmidti, from the Rootsikula Formation, Island of Oesel, Estonia (28mm and 16mm headshields). They are dated to the Upper Silurian and Lower Devonian respectively.

 

From some research it looks like the Tremataspis is genuine, however I’m not 100% on the Polybranchiaspis. Any input in terms of their authenticity would be greatly appreciated!

[Crazyhen]

On 9/18/2021 at 4:27 AM, Charlotte787 said:

This one looks real to me.  The matrix also matches those from Quqing, Yunnan of China.  There are many species of  Galeaspid from Quqing, and I couldn't tell exactly the species, probably Polybranchiaspis liaojiaoshanensis.  I have a bigger specimen that looks similar to this one.  It's attached here for comparison.