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Steve Koroll posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks ago@charles-du@lynette-luff thank you for the information. I was way off haha. The info is Much appreciated .
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Lourdes Luque posted a new activity comment 4 months, 2 weeks ago
4 months, 2 weeks ago4 months, 2 weeks ago@charles-du this is also a place to connect with people about fossils, too
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Anna Victoria posted a new activity comment 9 months ago
9 months ago9 months ago@charles-du on the beach of Lake Ontario
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Mason Hintermeister posted a new activity comment 1 year, 8 months ago
1 year, 8 months ago1 year, 8 months ago@charles-du None of these teeth are from the cretaceous, they are lamniformes from the miocene!
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Pamela Fabrick posted a new activity comment 1 year, 10 months ago
1 year, 10 months ago1 year, 10 months ago@charles-du Thank you
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Corinne posted a new activity comment 2 years ago
2 years ago2 years agoLepidodendron maybe. @charles-du and @mackenzie-smith I think you are the right people to help here?
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Waylon Sanders posted a new activity comment 2 years ago
2 years ago2 years ago@charles-du you know you can block someone right, so if you are annoyed then block him.
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Pamela Fabrick posted a new activity comment 2 years, 1 month ago
2 years, 1 month ago2 years, 1 month ago@charles-du Nice suggestion. Thank you!!
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du Yes. To my knowledge, both Lepidodendron and Sigillaria have Stigmaria type roots. Both are scale trees and lycopods with Lepidodendron having rhomboid leaf scars and Sigillaria having hexagonal leaf scars.
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du It’s a stem of some sort. Sadly, I can’t tell of what.
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du Yes! Stigmaria. Another one of those morphogenera where each organ gets ots own name. This name applies to the roots of scale trees (Lepidodendron).
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du These are great by the way. Enjoying this!
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du So the name given to this would be Artisia. It is the pith cast (inner part of the stem) of an early (but fully) seed plant called Cordaites. Plant fossil nomenclature is weird because we don’t always know what stem goes with what leaf or reproductive part and so although from the same plant, each organ gets its own genus (generic) name.
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du Ah, sorry just saw the comment. Yes, that is correct!
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du Calamites
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du Yes! 😁
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MacKenzie Smith posted a new activity comment 2 years, 3 months ago
2 years, 3 months ago2 years, 3 months ago@charles-du What are the dimensions? I’m leaning towards some sort of stem but a Cordaites leaf is possible. This is too early for palm (palms evolved during the Cretaceous).
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A Trilobite posted a new activity comment 2 years, 4 months ago
2 years, 4 months ago2 years, 4 months agoI agree with @charles-du. It’s very eroded, but the pattern looks like it could be a cephalopod shell. It could be an ammonite, or maybe an orthacone. Once again, it’s just hard to tell with the erosion.
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MacKenzie Smith posted a new activity comment 2 years, 4 months ago
2 years, 4 months ago2 years, 4 months agoHi @charles-du petrified wood ID requires thin sections or peels that can be placed under the microscope. Wood ID is based on cell types and arrangement of the cells.
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MacKenzie Smith posted a new activity comment 2 years, 5 months ago
2 years, 5 months ago2 years, 5 months ago@charles-du Could those spots be brachiopod valves? The first picture makes the whole thing look like wood but it is way too old for that so that’s either something sedementological or algal/cyanobacteria mat. But those circles do look like valves.
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