FOSSIL FARMER Posted May 15 Share Posted May 15 Calling all lobster aficionados! I collected these lobsters from what I believe to be the baculites compressus zone/upper campanian Pierre shale in western South Dakota. I'm trying to get a specific ID for these fellas. I've read about Paleonephrops Browni and Linuparus Canadensis being found in my area, but neither really seems to fit with these. Please excuse my unfinished prep work on the double, it's still in progress. 9 Link to comment Share on other sites More sharing options...
ynot Posted May 15 Share Posted May 15 WOW, those are very nice finds. Sorry can not help with ID. 1 Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 15 Author Share Posted May 15 Thanks, I couldn't believe it when I pulled that double out of the hill. I looked hard for that missing tail with no luck though. Link to comment Share on other sites More sharing options...
Ivaldir Posted May 15 Share Posted May 15 Can't help with ID, but these are already nice looking not fully prepped. They'll look amazing and be an eye-catcher I'm sure Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 15 Share Posted May 15 Wow! These are beautiful! Thank for showing us! And Welcome to the Forum! Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
FOSSIL FARMER Posted May 15 Author Share Posted May 15 6 hours ago, Ivaldir said: Can't help with ID, but these are already nice looking not fully prepped. They'll look amazing and be an eye-catcher I'm sure Thanks, I think I'm done working on the single for fear of damaging it if I try to push further. Those tiny legs are ultra fragile and that particular concretion is extra hard. Prepping these has certainly been quite the learning experience compared to the ammonites that I usually find. Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 15 Author Share Posted May 15 2 hours ago, Fossildude19 said: Wow! These are beautiful! Thank for showing us! And Welcome to the Forum! Thank you! Glad to be here with some real fossil enthusiasts. Link to comment Share on other sites More sharing options...
jpc Posted May 15 Share Posted May 15 Wow, indeed. What great fossils. Esp that double. Nice prep work, but you are wise to not go any further. I can't help on the ID, but , just Wow! Link to comment Share on other sites More sharing options...
hadrosauridae Posted May 16 Share Posted May 16 Fabulous find, I hope you find are able to get a positive ID for it. Can you share what county this is from? Professional fossil preparation services at Red Dirt Fossils, LLC. https://reddirtfossils.com/ Link to comment Share on other sites More sharing options...
Jared C Posted May 16 Share Posted May 16 Maybe @PFOOLEY has some ideas on these. 1 “Not only is the universe stranger than we think, it is stranger than we can think” -Werner Heisenberg Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 16 Author Share Posted May 16 2 hours ago, hadrosauridae said: Fabulous find, I hope you find are able to get a positive ID for it. Can you share what county this is from? Thanks, I collected these in Pennington county. Link to comment Share on other sites More sharing options...
MrR Posted May 16 Share Posted May 16 FOTM material? I haven't been spending a lot of time here of late, but what I have seen, as impressive as finds can be, these fossils are standouts. IIRC, it a fossil must be found during the present month for it to qualify. Regardless, those bugs...wait, trilobites are bugs in the world of fossils, are amazing! I hope you show them here when you get the prep finished. So cool...Congratulations on the find. 1 Link to comment Share on other sites More sharing options...
rocket Posted May 16 Share Posted May 16 reminds me to Paraclytia Link to comment Share on other sites More sharing options...
JohnJ Posted May 16 Share Posted May 16 @MB The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
PFOOLEY Posted May 29 Share Posted May 29 On 5/15/2024 at 7:24 PM, Jared C said: Maybe @PFOOLEY has some ideas on these. I do. First of all, excellent crop of lobsters @FOSSIL FARMER. Feldmann, Bishop and Kammer (1977) described and illustrated Hoploparia bearpawensis from the Campanian of Montana...not the Pierre, but an equivalent and a good starting point for comparison. This species is from the Baculites eliasi zone, which makes it a bit younger than your specimens. Fatherree et al. (1988) mentions Hoploparia mickelsoni in the paper: Oxygen and carbon isotopic "dissection" of Baculites compressus (Mollusca: Cephalopoda) from the Pierre Shale (upper Campanian) of South Dakota; implications for paleoenvironmental reconstructions. I could not locate that paper but will continue to make the attempt to do so. I am very curious to see if that species is illustrated and how well it compares with your gems. Feldmann, Bishop and Kammer (1977): Macrurous_Decapods_from_the_Bearpaw_Shale_Cretaceous.pdf EDIT: I found Gale Bishop's 1985 description of Hoploparia mickelsoni... Fossil_decapod_crustaceans_from_the_Gamm.pdf ...might give you enough information to make a comparison with your specimens. 1 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 29 Author Share Posted May 29 Thanks for the great info. I was leaning towards some type of hoploparia but as of yet I haven't found any that match up. It's been tough to dig up good info on these. I've got a couple more I'm still prepping that have more complete chelipeds, I'll get you a photo for reference when I get home. Link to comment Share on other sites More sharing options...
PFOOLEY Posted May 29 Share Posted May 29 2 hours ago, FOSSIL FARMER said: Thanks for the great info. I was leaning towards some type of hoploparia but as of yet I haven't found any that match up. It's been tough to dig up good info on these... You are welcome. If you click on the book icon in my signature, I've stashed a bunch of literature regarding Hoploparia in the last post of that thread. 2 hours ago, FOSSIL FARMER said: ... I'll get you a photo for reference when I get home. I look forward to seeing it. "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 30 Author Share Posted May 30 5 hours ago, PFOOLEY said: You are welcome. If you click on the book icon in my signature, I've stashed a bunch of literature regarding Hoploparia in the last post of that thread. I look forward to seeing it. Here are those photos for you. This one has been on the back burner for a bit and is far from finished, so please excuse the rough appearance. 2 Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 30 Author Share Posted May 30 Very informative read there. What I'm finding interesting is that unless I've misidentified the crabs I've collected, I'm in the dakoticancer assemblage with baculites compressus, and I also find didymoceras cheyennense in the same layer which should date it fairly accurately to 73-74 myo. These are the crabs, with just the one outlier that resembles the necrocarcinus from the paper. 1 Link to comment Share on other sites More sharing options...
PFOOLEY Posted May 30 Share Posted May 30 Occurrence and Fossilization of the Dakoticancer Assemblage, Upper Cretaceous Pierre Shale, South Dakota Occurrence and fossilization of the Dakoticancer assemblage.pdf @MB 1 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
FOSSIL FARMER Posted May 30 Author Share Posted May 30 Really phenomenal info again, and I'm absolutely amazed that you're so familiar with these relevant research papers. Link to comment Share on other sites More sharing options...
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