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The salt gland is an organ for excreting excess salts. It is found in the cartilaginous fishes subclass elasmobranchii (sharks, rays, and skates), seabirds, and some reptiles. Salt glands can be found in the rectum of sharks. Birds and reptiles have salt glands located in or on the skull, usually in the eyes, nose, or mouth.
The northwest quadrant of the I-20 and 408 loop is abundant in shark teeth. Directly east of 408 on Kiest Blvd is a large section of the Eagle Ford Shale outcropping beneath the Austin Chalk, where fossilized shark teeth are often found. Directly beneath Dallas, ammonites are sometimes found, though these are rare. Shark teeth are present and ...
Acrocanthosaurus.. Archaeologist Jack. T. Hughes has found evidence that the paleo-Indians of Texas collected fossils. [20] After the establishment of paleontology as a formal science, in 1878, professor Jacob Boll made the first scientifically documented Texan fossil finds in Archer and Wichita counties while collecting fossils on behalf of Edward Drinker Cope.
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Most of the teeth found here range from 3 to 10 million years old. [13] Near New Caledonia, up until the practice was banned, fishermen and commercial vessels used to dredge the sea floor for megalodon teeth. In the state of Georgia, shark teeth are found so often that they decided to make shark teeth the official state fossil in 1976. [18]
The really dark shark teeth, Dunn said, are millions of years old and more commonly found. The lighter teeth, beige or pearly in color, fell out more recently.
The Woodbine Group was first mapped and named by Robert T. Hill, known as the "Father of Texas Geology", for outcrops near the small town of Woodbine, Texas in 1901. [2] The Woodbine represents ancient river and delta systems that originated from erosion of the Ouachita Uplift in modern-day Oklahoma and Arkansas and the Sabine Uplift in modern ...
The teeth of Strigilodus tollesonae were “spoon-like,” which is considered ideal for crushing, McClatchy News reported. Teeth embedded in cave walls reveal new species of ancient sea creature ...