Jump to content
Sign in to follow this  
facehugger

West Texas Trip

Recommended Posts

facehugger

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. 

 

20190217_173745.thumb.jpg.3bda6e1ff6ba8f3f082be6f2f10c1034.jpg

 

20190217_173659.thumb.jpg.e38d113a1647b847e3f2b00165b73f0e.jpg

 

20190217_173843.thumb.jpg.162832538adcfcf6d0a95205cc8dfb8d.jpg

 

20190217_173912.thumb.jpg.e77b690a99656ed23897411867f7459a.jpg

 

20190217_173951.thumb.jpg.8210cf1bc22fa0045c4ac6a5bbcf3793.jpg

 

 

 

 

 

Share this post


Link to post
Share on other sites
facehugger

20190217_174021.thumb.jpg.f5a6b353735f3179acefa64dc6dde043.jpg

 

20190217_174109.thumb.jpg.28a7b61804cd4f12f8db564339d3d523.jpg

Share this post


Link to post
Share on other sites
Tidgy's Dad

Very interesting finds!:)

The heteromorphs in particular.

Share this post


Link to post
Share on other sites
facehugger
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...

Share this post


Link to post
Share on other sites
Tidgy's Dad

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.

image.jpeg.3f62ee180ce6d92c6b4a33418598b249.jpeg

Share this post


Link to post
Share on other sites
Uncle Siphuncle

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.

Share this post


Link to post
Share on other sites
facehugger
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?

 

Share this post


Link to post
Share on other sites
facehugger
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...

Share this post


Link to post
Share on other sites
Darktooth

Great finds! Do you know what the mineral replacement is? Looks like calcite or quartz?

Share this post


Link to post
Share on other sites
facehugger
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?

Share this post


Link to post
Share on other sites
Monica

What interesting preservation on those ammonites and belemnites!  Awesome finds!!! 

Share this post


Link to post
Share on other sites
Uncle Siphuncle

Guessing calcite, but never tested.

Share this post


Link to post
Share on other sites
facehugger
11 hours ago, Monica said:

What interesting preservation on those ammonites and belemnites!  Awesome finds!!! 

Thank you!

Share this post


Link to post
Share on other sites
facehugger
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...

Share this post


Link to post
Share on other sites
Carl

Gorgeous stuff there! Wow... Thinking that last one might be a turtle.

Share this post


Link to post
Share on other sites
Uncle Siphuncle
1 hour ago, Carl said:

Gorgeous stuff there! Wow... Thinking that last one might be a turtle.

My thought at the time as well.

Share this post


Link to post
Share on other sites
Wanderer

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.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×