Rogue Embryo Posted June 18, 2018 Share Posted June 18, 2018 Hello. 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 Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 18, 2018 Share Posted June 18, 2018 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. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
piranha Posted June 18, 2018 Share Posted June 18, 2018 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 1 Link to comment Share on other sites More sharing options...
Rogue Embryo Posted June 18, 2018 Author Share Posted June 18, 2018 Thanks, this is very helpful, if also somewhat mysterious, these burrows ... Camille Link to comment Share on other sites More sharing options...
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