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Rogue Embryo

ID please? Ordovician (possibly), Southern Ontario, Canada

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Rogue Embryo

5.thumb.JPG.fcc2ac9f196a7c474c8740a38075f2d6.JPGHello. The attached photo shows two rocks found in Toronto, Southern Ontario, Canada, at Mimico Creek. I juxtaposed the two because it seemed to my amateur eyes that the one on the left might have some similarity in structure to the two "mallet-shaped" structures in the rock to the right.

 

Any help in ID'ing these would be greatly appreciated.

 

Camille

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Fossildude19

Welcome to the Forum. :)

 

These appear to be trace fossils of some type. 

I found this picture of an Ordovician aged specimen online, with similar structures.  :) 

 

 

IMG_7982.jpg

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piranha

Dumbbell-shaped burrows are referred to the ichnogenus: Bifungites 

 

Here is an excellent paper:

 

Pickerill, R. K., & Forbes, W. B. (1977)
Bifungites cf. halli from the Ordovician (Caradocian) Trenton Limestone of the Quebec City Area.
Atlantic Geology, 13(3):87-92  PDF LINK

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Rogue Embryo

Thanks, this is very helpful, if also somewhat mysterious, these burrows ...

 

Camille

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