Piedras_de_Tejas Posted June 2, 2014 Share Posted June 2, 2014 (edited) Here are all my unknowns from the past few months of collecting and snapping pics before joining the forum. Some are weathered, but any help identifying is greatly appreciated The first two are glen rose formation dino prints about 16 inches from heel to to toe. The third is a nautilus (eutrepoceras?) from central san antonio i extracted from a soft limestone boulder. Its about 9 inches across and the lower of the three well-defined sutures i think is eroded into a deeper curve than it would have originally had. Edited June 2, 2014 by Piedras_de_Tejas Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
Piedras_de_Tejas Posted June 2, 2014 Author Share Posted June 2, 2014 Here is the first ammonite i ever saw, approximately 17 inches across found near the previous nautilus alongside the next ammonite fragment Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
Piedras_de_Tejas Posted June 2, 2014 Author Share Posted June 2, 2014 The following three pictures occur in the same layer of limestone in west san antonio. Embedded Nautilus. Partial, weathered ammonite i started extracting. Apparently im not the only person digging around here Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
Piedras_de_Tejas Posted June 2, 2014 Author Share Posted June 2, 2014 (edited) I have heard these are del rio formation, all from the same site near san antonio. The first i think is a large plate of ilymatogyra arietina oysters. Not sure if anyone else has encountered this, but many of the oysters are hollow and lined with what appear to be calcite crystals. I am not sure at all what this is part of. Edited September 27, 2014 by Piedras_de_Tejas Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
RyanNREMTP Posted June 2, 2014 Share Posted June 2, 2014 The last picture is part of the oyster shell. Those are pretty common in the part of the del rio I collect from. I still pick some of them up every now and then. The ones with crystals in them are interesting. The only one that I have found like that have been rudists. Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted June 2, 2014 Share Posted June 2, 2014 looks like you spent some time in the austin chalk based on the ammos and nautiloids. the big glob in situ is another nautiloid with aperture facing down. the last pic is an oyster xenomorph that used to be on a mariella ammonite, now eroded away. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 2, 2014 Share Posted June 2, 2014 I believe the large dino tracks in the Glen Rose are generally attributed to Acrocanthosaurus. Regards, 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...
MarcoSr Posted June 3, 2014 Share Posted June 3, 2014 Here are all my unknowns from the past few months of collecting and snapping pics before joining the forum. Some are weathered, but any help identifying is greatly appreciated The first two are glen rose formation dino prints about 16 inches from heel to to toe. The third is a nautilus (eutrepoceras?) from central san antonio i extracted from a soft limestone boulder. Its about 9 inches across and the lower of the three well-defined sutures i think is eroded into a deeper curve than it would have originally had. Screenshot_2014-06-02-01-04-27.png Screenshot_2014-06-02-01-04-53.png Screenshot_2014-06-02-01-05-48.png What eventually happens to dino tracks like this one? Do collectors try to remove them or do they just eventually weather into oblivion? Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Auspex Posted June 3, 2014 Share Posted June 3, 2014 What eventually happens to dino tracks like this one? Do collectors try to remove them or do they just eventually weather into oblivion? Marco Sr. From a scientific standpoint, cutting them out and removing them from context is the same as letting them weather away. Far better to take a cast. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Piedras_de_Tejas Posted June 4, 2014 Author Share Posted June 4, 2014 Ryan: Thanks, i actually rarely find those. My site is literally more ilymatogyra (millions) than "rocks" and specimens of anything else are uncommon, but my profile pic contains some of my del rio formation finds, excluding the carbonized wood piece i found in the creek with them. Also, I have some rudists and corals replaced by quartz and chalcedony, but i thought it was neat that the ilymatogyra are often lined with calcite. Dan: Thanks, that's what i hoped for. Pics 6-8 are from the area behind my neighborhood and i'm hoping to extract 6 and 7 sometime this week if i can find the time. Any chance you can identify the nautiloid in my third pic of the first post? If not i'm trying to find a way to clean it up since its my first nautiloid and i'd like to make it presentable. Hard to tell the difference between the matrix and the fossil though since the shell is mostly crushed or missing. Tim: Thank you. - Cameron Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted June 4, 2014 Share Posted June 4, 2014 if the nautiloid is from the austin, and fat in cross section, eutrephoceras campbelli is a contender. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Piedras_de_Tejas Posted June 4, 2014 Author Share Posted June 4, 2014 Thanks Dan. I'm guessing it is austin chalk, but i will check. Cameron C. "The important thing is to not stop questioning. Curiosity has its own reason for existing" - Albert Einstein Link to comment Share on other sites More sharing options...
AeroMike Posted June 5, 2014 Share Posted June 5, 2014 Thanks to Herr Woehr, I have a couple of nice "Texas" sized Ammonites from Texas~!!!! " This comment brought to you by the semi-famous AeroMike" Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted June 6, 2014 Share Posted June 6, 2014 Bitte sehr! Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
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