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The Rudist Rock of Texas


JamieLynn

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Couldn't resist the pun..sorry y'all!! So went out to a friends ranch to do some fossil hunting. Wasn't expecting much because it said the area was Segovia and Edwards Limestone, which is not very fossilierous. You will find the occasional thing, but not very often. My friend showed me a few things she found and I was ASTOUNDED. A GORGEOUS Neithia bivalve completely encrusted in crystals in a chert/flint matrix. Very unusual. So that got me to really hunting. I never found a nice shell like hers but I did stumble upon a Rudist Reef! Also covered in crystals! All I had to do was look for the sparkles and there was another rudist!  I love rudists (crazy looking Cretaceous bivalves, for those who are not familiar - the joke is if you find something you can't identify, it's probably a rudist), so this rock just has me over the moon. It's big, about 16 iches by 12 inches (you'll see my foot for scale...women's size 9 hahhahah)

 

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Some detail shots of the various Rudists: 

 

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Plus a couple of other nce examples: 

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Oh yeah...Foot for Size: 

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The Lovely Bivalve Which I DIdn't Get To Bring Home:

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Also got to take some photos of the "local" fauna and flora - Axis deer is not really local, they are imported. but very pretty:

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A bit blurry picture of a Tanenger

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Purple Lantana:

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Bloooming Prickly Pear Cactus::

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Great find Jamie Lynn! Rudist are so strange, which is part of their charm I think. 
 

Love the nature photos as well. Although, I have to say I’m not found of the prickly pear. They are beautiful to look at, but I fell (well jumped...) into a patch of them as a kid. One of my earliest memories. Was not pleasant... :shakehead:

The good thing about science is that it's true whether or not you believe in it.  -Neil deGrasse Tyson

 

Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy)

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43 minutes ago, FossilNerd said:

Great find Jamie Lynn! Rudist are so strange, which is part of their charm I think. 
 

Love the nature photos as well. Although, I have to say I’m not found of the prickly pear. They are beautiful to look at, but I fell (well jumped...) into a patch of them as a kid. One of my earliest memories. Was not pleasant... :shakehead:

 

Oh, yes, that would definitely put you off prickly pears! Yikes!! 

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37 minutes ago, jpc said:

nice stuff.  Fossils AND nature.  Your Tanager is a Vermillion Flycatcher.  

So it is!!  Thank you! Not much of a birder.....my mom is, so i pick up a "general idea" and that was the only red bird I knew of besides the cardinal! 

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Nice stuff. My late father in law had a deer lease between Fredericksburg and Mason. It was all Segovia Formation. Rudists and lots of other weird negative spaces... Not collectible and I now really wish I had taken photos.  The minerals are very interesting.

 

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Rudist reefs are so cool. I have one chunk that is four feet long, with tons of shells in it--and one beautiful goniopygus

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That's a really cool! I've seen similar chunks of crystalline rudist limestone around here, but never so big or so colorful. I love all those crystalline fossils -- they're super fun! This specimen looks really cool and seems to have an endless amount of little details to explore.

Nice plants, too. I love all our local stuff. That "purple lantana" is really prairie verbena -- Glandularia bipinnatifida. It's a lovely little native wildflower.

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3 hours ago, sarracenia said:

That's a really cool! I've seen similar chunks of crystalline rudist limestone around here, but never so big or so colorful. I love all those crystalline fossils -- they're super fun! This specimen looks really cool and seems to have an endless amount of little details to explore.

Nice plants, too. I love all our local stuff. That "purple lantana" is really prairie verbena -- Glandularia bipinnatifida. It's a lovely little native wildflower.

 

Oh duh...yes, Verbena! Thanks! 

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