danielp Posted January 16, 2019 Share Posted January 16, 2019 Here is an echinoid I collected several years ago while sifting in Post Oak Creek in Sherman Texas. I haven't ever seen another one come from there. Anyone have an idea on the identity of it. The grid paper is in mm so this echinoid is approximately 10x10 millimeters in size. 4 Link to comment Share on other sites More sharing options...
Darktooth Posted January 16, 2019 Share Posted January 16, 2019 Nice little find. Sorry I can't help with ID. I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
caterpillar Posted January 16, 2019 Share Posted January 16, 2019 A Salenidae for sure 5 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 16, 2019 Share Posted January 16, 2019 @Uncle Siphuncle 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...
Tidgy's Dad Posted January 16, 2019 Share Posted January 16, 2019 Salenia mexicana? Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted January 16, 2019 Share Posted January 16, 2019 54 minutes ago, Tidgy's Dad said: Salenia mexicana? Younger than that. Caught flat footed at the moment, but I’d suggest looking at the documented saleniids of the Austin Group. Not aware of any from the Eagle Ford. 3 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
PFOOLEY Posted January 16, 2019 Share Posted January 16, 2019 @erose "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...
erose Posted January 16, 2019 Share Posted January 16, 2019 44 minutes ago, PFOOLEY said: @erose What? who? me...? Possibly an eroded Bathysalenia....kicking this to @JohnJ. 2 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted January 16, 2019 Share Posted January 16, 2019 Another possibility: an old post by @Uncle Siphuncle mentions S. hondoensis from the Upper Cretaceous Anacacho Fm. The photo from Dan is no longer visible. Maybe Dan can repost it. http://www.thefossilforum.com/index.php?/topic/4838-texas-salenia-project/ Do not forget the possibility that it was from a different area and was lost by a collector. I have seen foreign fossils next to parking areas at POC and nearby Sand Creek. 1 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Heteromorph Posted January 16, 2019 Share Posted January 16, 2019 To my untrained eye this doesn't look like Bathysalenia skylari, but that is the only documented saleniid that I can find from the Austin Group. I know there are multiple saleniids from the overlying Taylor group like, as DPS Ammonite said, Salenia hondoensis, and Salenia whitneyi, Salenia pseuodowhitneyi, and Dan's Salenia sp., so there were probably multiple saleniids about in era of the Austin. Maybe it is B. skylarki and the erosion is throwing me off. Here are Salenia pseudowhitneyi specimens and a Salenia sp. specimen from one of Dan's trip reports in figures 88-94. March 15, 2009: Echinoid Odyssey, Day Two 1 Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted January 16, 2019 Share Posted January 16, 2019 2 hours ago, Heteromorph said: To my untrained eye this doesn't look like Bathysalenia skylari, but that is the only documented saleniid that I can find from the Austin Group. I know there are multiple saleniids from the overlying Taylor group like, as DPS Ammonite said, Salenia hondoensis, and Salenia whitneyi, Salenia pseuodowhitneyi, and Dan's Salenia sp., so there were probably multiple saleniids about in era of the Austin. Maybe it is B. skylarki and the erosion is throwing me off. Here are Salenia pseudowhitneyi specimens and a Salenia sp. specimen from one of Dan's trip reports in figures 88-94. March 15, 2009: Echinoid Odyssey, Day Two Pics not with me on my phone, but I doubt anything Campanian would make its way into POC by natural transport process. If this one was dropped in the creek by an itinerant Lower K collector with a hole in his pocket, he picked it up already worn, as this one rolled around quite a bit at some point. 2 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Heteromorph Posted January 16, 2019 Share Posted January 16, 2019 12 minutes ago, Uncle Siphuncle said: Pics not with me on my phone, but I doubt anything Campanian would make its way into POC by natural transport process. If this one was dropped in the creek by an itinerant Lower K collector with a hole in his pocket, he picked it up already worn, as this one rolled around quite a bit at some point. I was just saying that since there were still so many species of saleniids in the Campanian that there probably were multiple species in the Turonian/Coniacian and that maybe a few of the Campanian species ranged down into the lower Austin. Link to comment Share on other sites More sharing options...
JohnJ Posted January 17, 2019 Share Posted January 17, 2019 Definitely not a Bathysalenia species. Based on the ambulacral orientation to the apical plates, this is a Leptosalenia species. I am also inclined to think this echinoid was found elsewhere and transported there by one of the hundreds of fossil collectors that frequent that creek. 4 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
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