Is this a fossil??

[GoExplore]

Is this a fossil? Found it along side a river in Southern Utah.

 

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[Perico]

Yes! What is the white stuff?

 

[old digger]

Not a fossil. Pseudofossils are rock patterns or shapes that look like fossils but are produced by chemical or geological processes and do not represent organisms, These are called dendrites and are caused by the mineral manganese oxide by seeping into the host rock like limestone.

 

[Perico]

Thank you old digger. Sorry I spoke too soon. Had never seen or heard of these.

 

[IAMZIM]

Not a fossil. Pseudofossils are rock patterns or shapes that look like fossils but are produced by chemical or geological processes and do not represent organisms, These are called dendrites and are caused by the mineral manganese oxide by seeping into the host rock like limestone.

Exactly what old digger said. I have some myself, if I get a chance later, I'll post a pic of an awesome one I found that looks like a picture.

 

[IAMZIM]

NikFinally got around to getting a pic for you. Dendritic inclusions, probably iron. They look like little bushes or trees, quite common.

 

[old digger]

View attachment 1736227NikView attachment 1736228Finally got around to getting a pic for you. Dendritic inclusions, probably iron. They look like little bushes or trees, quite common.

Those are awesome examples.

 

[A2coins]

Wow looks like it was drawn on there really cool fossil

 

[IAMZIM]

Wow looks like it was drawn on there really cool fossil

Not a fossil though, they are iron dendrite inclusions, where iron leached into the stone.