jeffln Posted May 13, 2022 Share Posted May 13, 2022 I found this clam buried in mud along Joshua’s Creek in Oakville, near Lake Ontario, the hotspot of Ordovician fossils. Measurements are 7cm by 6cm. I’m particularly intrigued by the growth rings, since they protrude out rather visibly and considering I’ve never seen this in any other kind of fossil or living clam species. Can anyone help with identifying what species of fossil clam this is? Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 13, 2022 Share Posted May 13, 2022 Maybe something like Modiolopsis sp? Review of Ordovician Pelecypods LINK 1 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...
jeffln Posted May 13, 2022 Author Share Posted May 13, 2022 Are you sure? I searched up "Modiolopsis sp" and the images don't really resemble the fossil I have. Link to comment Share on other sites More sharing options...
Kane Posted May 13, 2022 Share Posted May 13, 2022 Possibly a broken Archinacella patelliformis with some epibionts. Source image for comparison from Hessin. W. A. (2009) South Central Ontario Fossils 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Northern Sharks Posted May 13, 2022 Share Posted May 13, 2022 Seems to be huge if Kane is correct based on the size of the nickel. I was inclined to think cephalopod fragment or possibly even Isotelus chunk. 1 There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
Kane Posted May 13, 2022 Share Posted May 13, 2022 Just now, Northern Sharks said: Seems to be huge if Kane is correct based on the size of the nickel. I was inclined to think cephalopod fragment or possibly even Isotelus chunk. True (I hadn't factored on the scale). That said, the lack of regularity of the "growth rings" is making me uncertain about granting this bivalve status. I initially was thinking a geologic artifact as opposed to a fossil (and I will have to disagree with Isotelus ) 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 13, 2022 Share Posted May 13, 2022 1 hour ago, jeffln said: Are you sure? I searched up "Modiolopsis sp" and the images don't really resemble the fossil I have. Not at all, that is why I said "Maybe" . 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...
jeffln Posted May 13, 2022 Author Share Posted May 13, 2022 (edited) I'm 100% certain this is a clam. The umbo (tip of the clam) is distinctly visible in the pictures and it appears to be well-fossilized. Plus, it's too shaped like a clam to be anything else in my opinion. Edited May 13, 2022 by jeffln Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 13, 2022 Share Posted May 13, 2022 I'd like to see an image (head on) from along the "hinge line" of the item. 1 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...
jeffln Posted May 13, 2022 Author Share Posted May 13, 2022 Here are some pictures from the side. Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 13, 2022 Share Posted May 13, 2022 There does appear to be a hinge line of sorts. 1 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...
jeffln Posted May 13, 2022 Author Share Posted May 13, 2022 That's great to hear! Are there any more predictions that can be made of my fossil based on the hinge line? Link to comment Share on other sites More sharing options...
markjw Posted August 28, 2022 Share Posted August 28, 2022 (edited) That's an interesting piece. I occasionally get fossils in the eastern part of Oakville. Where on Joshua Creek do you look for fossils? What types are you looking for? Edited August 28, 2022 by markjw (mixed up directions!) Link to comment Share on other sites More sharing options...
jeffln Posted January 12, 2023 Author Share Posted January 12, 2023 Hey Mark, sorry for the extremely late response. I live in the part of Oakville known as Eastlake. There's a Local park called Deer Run park just a short walk from my house, and it's right near the part of Joshua's Creek that is super close to Lake Ontario and flows into it. When I'm looking for fossils, I'm not usually looking for anything specific, I just tend to look for whatever catches my eye and that I find interesting, whether it be nautiloids, bivalves, bryozoans, etc. Link to comment Share on other sites More sharing options...
Lousde Posted January 12, 2023 Share Posted January 12, 2023 It could be a stromatolite. Link to comment Share on other sites More sharing options...
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