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Found 5 results

  1. Are pathological shark teeth random occurrences, genetic mutations, or the result of feeding damage? I understand that pathological extant shark teeth show deformities similar to pathological fossil shark teeth. I presume that most of what we know about the subject is based upon modern observations. Is a pathological tooth replaced by a normal one in the tooth replenishment process or is that file always going to produce a deformed tooth? Thoughts, ideas?
  2. Yesterday I was doing some amphibian research and came across the caecilians (Gymnophiona). How had I not heard of one of the three living orders of amphibians? The others being Caudata (salamanders) and Anura (frogs and toads). I thought it was something worth sharing and then I thought there are a lot of extant species that are really cool so I created this thread so we can all see and share some of our favorite extant species. Starting off with the caecilians, a legless amphibian that lives underground in the tropical regions of the world. they come in many colors and the largest species can grow up to 5 feet (1.5 meters). Unlike worms they have a skeleton with vertebrae and a skull filled with small sharp teeth. Caecilia attenuata Very similar but not closely related to the next animal on this list, the legless lizard (Pygopodidae). They are found all throughout the world. They resemble snakes except for the lizard head. The largest species is the European Glass Lizard (Pseudopus apodus). I have to include this dragon like lizard, the armadillo lizard. (Ouroborus cataphractus) https://en.wikipedia.org/wiki/Armadillo_girdled_lizard. They live in South Africa and curl in a ball when they are threatened. That's all for the reptiles now lets look at the descendants of dinosaurs, my favorite bird, the Cassowary (Casuaurius). It looks prehistoric and being the third largest bird, behind ostrich and emu you cant miss its blue crested head. And their footprints look just like dinosaur footprints. Next has to be the Lyre Bird (Menura novaehollandiae) The superb lyrebird. Not sure if the second video is real since it was not uploaded by BBC but it is really fascinating. Next is a mammal, the Colugo (Cynocephalidae) It is a flying mammal and our not so distant relative seeing as we are both in the mirorder primatomorpha. Moving on to some smaller species. Ill start with the praying mantis. An order of insects that everyone should know seeing as they are found everywhere. (Mantodea) They come in several fascinating colors and patterns, just search some of the exotic species there are so many. Here are a few, Next is the largest centipede Scolopendra_gigantea. They live in south america and can grow up to 30 cm (12 inches) That's all I have for now, took like an hour to write this. Probably could of been quicker but I read some more about these fantastic species. Many of the species on this list may not ever fossilize or leave a very small record and things like what sound they make or what colors will not be preserved. Makes you wonder about what species existed that never fossilized or have not been found yet. Please add more species to this list I know there are others. Enjoy
  3. fossilnut

    Modern skate skeleton

    Not sure where to post this request, so change as appropriate. The Maryland Natural History Society will be holding its annual Shark Fest in August. I volunteer there. As part of our educational displays, a skate skeleton would be useful for folks to see, feel the cartilage and to see the protective dermal denticles. I have looked on the internet but have not come up with with any. I looked on taxidermy sites and online. I wondered if any TFF members may have or can refer me to a person or site where such a skeleton or partial piece like a tail section would be available. Thanks for any help anyone can provide.
  4. I like to have extant teeth in my collection to contrast with fossil teeth of the same or similar species. I bought these teeth at a tourist shop in Las Vegas a few years ago. They had been made into necklaces. I thought they might be H. elongata based on the root shape and would be interesting to display along with my fossil H. serra teeth. I am not convinced my ID is correct, especially considering the serrations go all the way to the tip. Any ideas?
  5. Does anyone keep extant shark teeth in their fossil shark teeth collections for comparison and reference? Is it poor form to ask for an ID on this forum of an extant tooth to see if it is related to a fossil tooth?
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