cngodles Posted January 26, 2020 Share Posted January 26, 2020 I think this is the genus Antiquatonia, but I’m looking for some confirmation. I found this back in April, going through my finds and trying to ID. Found in Limestone. Glenshaw Formation (Conemaugh Group) Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
cngodles Posted January 26, 2020 Author Share Posted January 26, 2020 Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
KingSepron Posted January 26, 2020 Share Posted January 26, 2020 @Max-fossils i think is something he’d know Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 26, 2020 Share Posted January 26, 2020 Have you compared to Juresania, Linoproductus, or Cancrinella ? LINK page 10 4 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...
cngodles Posted January 26, 2020 Author Share Posted January 26, 2020 Nice, a local research paper I don’t think I’ve seen yet. They even included specimens from my county. Can’t wait to read it. If I go by the fossil plate, Lino appears to be a longer shell. I have found representative examples of that genus in the past. The dip in the median plane and the ribs being prominent along it rather than growth lines has me thinking more Antiquatonia. I’ll look up Cancrinella However, I’m open to opinions. 2 Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 26, 2020 Share Posted January 26, 2020 These genera are defined largely based on the location of spines on the shell. It's hard to determine that from your photos as it seems the exterior surface is missing. The general aspect seems more like Juresania than Antiquatonia to me, based on my collection from New Mexico, but without specimens showing where spines were attached I can't be confident or any ID. Productids are one of the harder groups of brachiopods to identify. Why do you think they are Antiquatonia? Don 3 Link to comment Share on other sites More sharing options...
cngodles Posted January 26, 2020 Author Share Posted January 26, 2020 Yeah, I did notice that. The productida ones have them. I have this photo of one I took (Not this specimen). I’ll never see one pulling it from limestone I imagine. The negative part has a lot of preserved aragonite, however I’m not sure I still have it. Even so, I probably wouldn’t see the spines if they were there. Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
Max-fossils Posted January 29, 2020 Share Posted January 29, 2020 On 1/26/2020 at 1:22 PM, KingSepron said: @Max-fossils i think is something he’d know Heh, I may be decent with bivalves, but brachiopods are waaaay out of my league. Maybe @Tidgy's Dad can help too? 2 Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted January 29, 2020 Share Posted January 29, 2020 I would agree there isn't enough detail to be able to give a certain id, but I would also lean towards Juresania based on shape, size and ribbing. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
cngodles Posted May 16, 2022 Author Share Posted May 16, 2022 (edited) One last look at this one. I have settled on Antiquatonia portlockiana. Scale bar = 1 cm. Edited May 16, 2022 by cngodles Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
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