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Here is my collection of small/micro fossils from the Arkona formation in Southern Ontario. Everything here was collected by soaking clay from the Arkona fm and sifting out the solid matrix. I'm sure many of my IDs are way off so please correct me and fill in the unknowns if you recognize anything! Tentaculites Bactrites sp. Left: Tornoceras sp. Right: Maclurites? sp. Left: Holopea? sp. Right: Nanticonema lineata Left: Hormotoma? sp. Right: Platyceras sp. Left: Scaphopods Right: Hyoliths Left: Paracyclas lirata Right: Prothyris? sp. Left: Nuculana rostellata Right: unknown Left: Nuculites triqueter Right: Nuculites pacatus Left: unknown Right: unknown Left: Spirifer sp. and Delthyris sp. Right: Chonetes sp. Left: Cyrtina sp. Right: Cyrtina sp. Left: Camarotoechia sp. Right: Camarotoechia sp. Left: Onniella trigona Right: unknown Left: Terebratula sp. Right: Productella spinulicosta Ostracods Left: Eldredgeops sp. Right: Eldredgeops sp. unknown blastoid Devonaster? sp. arm fragment crinoid fragments
Here are a couple more I picked out of the Arkona mud. I put my guesses at the bottom but would like to see what you guys think. #1 These range from 5-10 mm The shape is roughly a 3 sided pyramid with 120/30/30 degree angles Some are pyritized but the others have a very faint lateral ridge pattern #2 My guess: #1 - Conulariid #2 - Fragment of a Devonaster arm Edit: adding one I forgot #3