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Showing content with the highest reputation on 06/20/2012 in all areas

  1. In Dr Meldrum's defense, I have to say the man is very intelligent. My official academic credentials include degrees in psychology and while that doesn't incline or license me to bully my opinions on the science of primates, anthropology, or BF; it does afford me some introspection of the individual I'm conversing with. I can say, having had a 20 minute conversation with Jeff at the East coast convention last fall, the man is looking to gain nothing--except more knowledge. Like everyone, he has his own opinions but he has no problem changing them when/if evidence warrants it. I kinda wish everyone was a bit more like Dr Meldrum.
    1 point
  2. Mike G, When I was a kid I'd visit my grandparents (just a few miles from Bigtex's area)...and we'd go see the Dino tracks in the South San Gabriel about a mile from their house. According to this article...most Texas Dino tracks are in Limestone, so I don't know.... Rock Sediments and Soil Facts Rocks that contain tracks Most Texas dinosaur tracks are in limestone that formed in shallow water at the edges of an ocean. Limestone is a type of rock created mostly by living things, such as calcareous algae, corals, oysters, and clams. Shells and hard limey stems and fronds were broken into sand-sized grains and even mud-sized particles. The sediment was deposited in the dry or shallow-water coastal environments where dinosaurs roamed. Storms would blow in and deposit new layers of sediment on top of the dinosaurs' footprints, burying the prints and preserving them. Erosion and deposition of gravel, sand, silt, and clay Dinosaur tracks are covered and uncovered by erosion and deposition of gravel, sand, silt, and clay. Fossil hunters love rivers because they cut down through rock layers and expose rock surfaces that have been buried for millions of years-although once they have exposed the fossils, rivers will continue to erode, destroying what they have exposed, eventually revealing the layer beneath. The gravel, sand, silt, or clay that is deposited by rivers is called alluvium. Alluvium is classified first by grain size and second by what the grains are made of. Gravels have the largest grain size and in Texas are most commonly made of quartz, chert, and limestone pebbles. Sand and silt are composed mostly of quartz, and clay is composed mostly of clay minerals. Â Limestone and mudstone. One key to good exposure of trackways is layers of soft mudstone on top of relatively hard limestone. Photo courtesy of Texas Parks and Wildlife Dept. Â
    1 point
  3. Tex.....it's easy! Look at the deer in the front and the bright eyeshine....it reflects back into the camera and appears like some Sasquatch is watching from the distance! Ive literally seen it a hundred times, and that's all there is to it. Sometimes we want to see things that aren't really there.........Don't feel bad, your not alone...check out this link ( when you look at the deer check out the same two eyes looking at him from behind)....I'll see if I saved any of my pics that I can post!http://www.google.com/url?sa=t&source=web&cd=6&ved=0CFQQFjAF&url=http%3A%2F%2Fs2.excoboard.com%2Fexco%2Farchive.php%3Fac%3Dt%26forumid%3D124725%26date%3D08-17-2009%26t%3D2053059-1&ei=fznQT9LfL6Ka2gXxrJ22DA&usg=AFQjCNE6ukC1uBYgcx35YE87y0qUMNoe4g
    1 point
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