Ashley Coates Posted March 12 Share Posted March 12 Hi all Grateful for any ideas on this. Found at Aust cliffs, Westbury Bone Formation. Assumed to be a fish (poss reptile) jaw bone. My working assumption is it is either Gyrolepis albertii or Severnichthys acuminatus or one of the (six?) other bony fish taxa from this part of the world. Have quite a few other bits to ID soon too! I hope the images line up. The teeth get smaller as the rock, and bone, narrows, and line up where the rock has broken [due to falling from the cliff - not me!]. The appear to curve inwards. To me they look more Gyrolepis but I have never handled a jaw bone from the fish here so not too sure. Bone seems quite thick to me. Thank you, Ashley Link to comment Share on other sites More sharing options...
doushantuo Posted March 12 Share Posted March 12 Ashley, Ben here. You might already have considered this yourself, but if all else fails, you could possibly contact Mike Benton at Bristol. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 12 Share Posted March 12 This should definitely be prepare by a professional. Not sure you can say much without it being prepared. Google "Fossil Preparation in the UK". 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...
doushantuo Posted March 14 Share Posted March 14 you're gong with those two taxa on probabilistic grounds ( which is not entirely unreasonable ) ? Link to comment Share on other sites More sharing options...
doushantuo Posted March 14 Share Posted March 14 de Lange B, Chenal E, Diependaal HJ, and Reumer JWF. Fish remains from the Rhaetian (Late Triassic) of Winterswijk, the Netherlands (Pisces: Chondrichthyes and Actinopterygii). Netherlands Journal of Geosciences, Volume 102, e10. https://doi.org/10.1017/njg.2023.10 take a look at fig 6 fish_remains_from_the_rhaetian_late_triassic_of_winterswijk_the_netherlands_pisces_chondrichthyes_and_actinopterygii (1).pdf Link to comment Share on other sites More sharing options...
jpc Posted March 14 Share Posted March 14 whatever it is... there is something cool in there. I agree that it needs professional attention. 1 Link to comment Share on other sites More sharing options...
Ashley Coates Posted March 15 Author Share Posted March 15 Hi all, thank you so much for your input. I am increasingly querying if it is Blue Lias (Early Jurassic) rather than Westbury Formation (Late Triassic) but still largely convinced it is a fish - despite the range of rarer options that are fun to consider! Most of what I have from this site is from the Westbury Formation. Agree it needs preparation by a professional, which I will facilitate and I have sent the images to Mike Benton - who I think gets sent a lot of this stuff. 1 Link to comment Share on other sites More sharing options...
Ashley Coates Posted March 20 Author Share Posted March 20 By way of an update: this is now thought to be an ichthyosaur from the Lower Lias, tbc depending on prep work. 1 1 Link to comment Share on other sites More sharing options...
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