facehugger Posted February 18, 2019 Share Posted February 18, 2019 Well, I returned from my West Texas hiatus a few days ago, and have had time to process some of my finds. These were primarily found in the Terlingua area. Some ammonites - not sure if any prep work can expose more on these. Also some belemnitella, I think, and possibly a crab? Please let me know your thoughts. I believe these came from the Boquillas formation, but I am not entirely certain. There is a LOT of rock in West Texas. 3 Link to comment Share on other sites More sharing options...
facehugger Posted February 18, 2019 Author Share Posted February 18, 2019 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted February 18, 2019 Share Posted February 18, 2019 Very interesting finds! The heteromorphs in particular. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
facehugger Posted February 18, 2019 Author Share Posted February 18, 2019 9 minutes ago, Tidgy's Dad said: Very interesting finds! The heteromorphs in particular. Hmmm so you are leaning to heteromorph ammonite rather than belemnitella? I considered both, but wasn't really sure... Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted February 18, 2019 Share Posted February 18, 2019 The one in the top right of the first photo seems to be a belemnite. The one in the second picture, for example, is an heteromorph ammonite similar in design to this one from the web. 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted February 18, 2019 Share Posted February 18, 2019 Well done. Allocrioceras hazzardi. I found some in the Boquillas Flags years ago near Study Butte, prob same zone. Same horizon as Worthoceras and Metoicoceras, so I’m assuming equivalent to the Upper Britton of DFW. I also got what I think were a few Belemnites. The rest of the club stayed in a valley while I billy goated some mountainsides solo...found so much I had to high grade just to fit it all in my pack. Twas a slow and top heavy descent. Nothing was found in the valley. 4 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
facehugger Posted February 18, 2019 Author Share Posted February 18, 2019 23 minutes ago, Uncle Siphuncle said: Well done. Allocrioceras hazzardi. I found some in the Boquillas Flags years ago near Study Butte, prob same zone. Same horizon as Worthoceras and Metoicoceras, so I’m assuming equivalent to the Upper Britton of DFW. I also got what I think were a few Belemnites. The rest of the club stayed in a valley while I billy goated some mountainsides solo...found so much I had to high grade just to fit it all in my pack. Twas a slow and top heavy descent. Nothing was found in the valley. Cool! Thanks. That was my experience also. The sides and tops of the hills were plentiful, but the valleys and gorges were sparse. Any thoughts on the last piece? Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted February 18, 2019 Share Posted February 18, 2019 19 minutes ago, facehugger said: Cool! Thanks. That was my experience also. The sides and tops of the hills were plentiful, but the valleys and gorges were sparse. Any thoughts on the last piece? Not sure what to make of that last piece. Here are some I found in the capstone. The last thing I found down in the valley. Not sure of fm, but it was the only thing I found down low. 5 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
facehugger Posted February 18, 2019 Author Share Posted February 18, 2019 57 minutes ago, Uncle Siphuncle said: Not sure what to make of that last piece. Here are some I found in the capstone. The last thing I found down in the valley. Not sure of fm, but it was the only thing I found down low. Wow, those are definitely from the same location. You have some pretty good ones. I tried to look for other organisms, but the ammonites seemed by far the most abundant fossils... Link to comment Share on other sites More sharing options...
Darktooth Posted February 18, 2019 Share Posted February 18, 2019 Great finds! Do you know what the mineral replacement is? Looks like calcite or quartz? I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
facehugger Posted February 18, 2019 Author Share Posted February 18, 2019 2 minutes ago, Darktooth said: Great finds! Do you know what the mineral replacement is? Looks like calcite or quartz? Thank you! I haven't tested to see if calcite, but seems likely. What do you think, @Uncle Siphuncle? Link to comment Share on other sites More sharing options...
Monica Posted February 18, 2019 Share Posted February 18, 2019 What interesting preservation on those ammonites and belemnites! Awesome finds!!! Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted February 18, 2019 Share Posted February 18, 2019 Guessing calcite, but never tested. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
facehugger Posted February 19, 2019 Author Share Posted February 19, 2019 11 hours ago, Monica said: What interesting preservation on those ammonites and belemnites! Awesome finds!!! Thank you! Link to comment Share on other sites More sharing options...
facehugger Posted February 19, 2019 Author Share Posted February 19, 2019 21 hours ago, Darktooth said: Great finds! Do you know what the mineral replacement is? Looks like calcite or quartz? 11 hours ago, Uncle Siphuncle said: Guessing calcite, but never tested. Didn't have any cleaning vinegar around, but did note that I could scratch the mineral with fingernail... Link to comment Share on other sites More sharing options...
Carl Posted February 19, 2019 Share Posted February 19, 2019 Gorgeous stuff there! Wow... Thinking that last one might be a turtle. Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted February 19, 2019 Share Posted February 19, 2019 1 hour ago, Carl said: Gorgeous stuff there! Wow... Thinking that last one might be a turtle. My thought at the time as well. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Wanderer Posted February 22, 2019 Share Posted February 22, 2019 The replacement mineral is most likely calcite. Beautiful finds! If you get a chance, East Needle Peak near Terlingua produces some very interesting specimens, too. It's also unique in that it contains seven (if memory serves) geologic eras because of the way the crust has moved at that location. There's a rockhound who regularly hosts guided trips onto private property out there. 2 Link to comment Share on other sites More sharing options...
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