Devonian Fish

[SheLovesFossils]

Head shield, and eyes of cephalaspis, and other dermal bones or plates, spines, of armored Devonian fish. In various stages of development. From the Knoydart Formation, Nova Scotia. This formation is similar to that of the "old red sandstone" of Europe, similar in fossils and mode of preservation. I do not know much yet of Devonian fish fossils, if anyone can comment and let me know more about these that would be great! Thank you. These are my first vertebrate fossils that I have found, last week. I have only ever found invertebrates. 

[izak_]

Sorry, but I'm not convinced that these are fish. The eyes of placoderms can fossilise (the bone inside them), but usually not in this kind of rock(?). Also, the bones of placoderms usually have a ridgy texture or are covered in small bumps, which I'm not seeing here. #6 and #7 could be a worm burrow.

[SheLovesFossils]

37 minutes ago, Foozil said:

Sorry, but I'm not convinced that these are fish. The eyes of placoderms can fossilise (the bone inside them), but usually not in this kind of rock(?). Also, the bones of placoderms usually have a ridgy texture or are covered in small bumps, which I'm not seeing here. #6 and #7 could be a worm burrow.

I have many specimens, will post some more tomorrow of the more bumpy ones for you. They Knoydart Formation is red sandstone, but this can vary in degrees of lightness, or could be more dark. 

[abyssunder]

I suppose you already have these documents, if not, maybe they help a little.

 

doc 1

doc 2

[SheLovesFossils]

8 hours ago, abyssunder said:

I suppose you already have these documents, if not, maybe they help a little.

 

doc 1

doc 2

Thank you! Yes, I have one document but not the booklet one, it is wonderful. Thank you for sharing! I am on a Devonian learning curve, and I am very happy 

[SheLovesFossils]

Adding a few more photos of specimens from the Knoydart Formation, McArras Brook Nova Scotia. Devonian armored fish plates.

[Ludwigia]

On 10.12.2017 at 10:06 PM, Foozil said:

Sorry, but I'm not convinced that these are fish. The eyes of placoderms can fossilise (the bone inside them), but usually not in this kind of rock(?). Also, the bones of placoderms usually have a ridgy texture or are covered in small bumps, which I'm not seeing here. #6 and #7 could be a worm burrow.

Deposition circumstances around the world can vary greatly, hence same fossil in for us unusual matrix.