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Showing results for tags 'phalanges'.
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Good evening fossil folks, I found a small bone on a Tampa Bay beach on the west coast of Florida. After doing some research I saw similarities to a cave bear toe bone and/or bison. It's approximately 1" x 3/4" and very worn with a baseline crack. I have 7 photos of different angles. Can you ID? Thanks all!
Greetings, Would appreciate a little input on what these might be. Unfortunately I have NO information on where they were found and in which formation. I only know that they came out of an old collection of a fossil guy in California. They were given over to a secondhand shop as part of a huge assemblage of specimens, many of which weren't labeled, but they were told they were from a dinosaur. I realize that narrowing things down too far will be impossible due to provenance, but if I could confirm whether a.) these came from a dinosaur, and b.) Which general type (small sauropod? Theropod? etc.). If they turn out not to be dinosaur material, that's fine. I paid very little for them and kind of jumped on them on a whim, on the off-chance that they turn out to be something dinosaur that I could use in my upcoming 'Dinosaur Discovery' lesson plans for work. Here are attached photos below. I tried to snap shots from all angles. Pardon the crappy quality of my phone camera. And thank you in advance for your time and expertise.
Horse Teeth 'Modern' horse teeth are very hypsodont (high-crowned) to deal with wear caused by eating gritty and/or fibrous foods like grasses. A mature horse may have as many as 44 teeth, which include: 12 incisors (6 upper and 6 lower) Canine teeth are usually absent in female horses but may be present in males. Cheek teeth (4 premolars and 3 molars per side) have very complex enamel patterns. The first premolars (upper and lower) in horses (sometimes called the 'wolf teeth') are vestigial and often absent. Upper cheek teeth (premolars and molars) can be recognized by the relatively square shape (except for the second premolar and third molar) when viewing the occlusal (chewing) surface. Lower cheek teeth (premolars and molars) can be recognized by the relatively rectangular shape when viewing the occlusal (chewing) surface (except for the second premolar and third molar). Horse 'foot' bones 'Modern' horses are monodactyl (one-toed). The metapodials (hand and foot bones) are reduced to a single unit on each leg. There are three 'toe bones' - phalanges (singular is phalanx) on each foot...phalanx I, phalanx II and phalanx III. The third phalanx is the 'hoof core' Unfortunately, I have never collected an intact phalanx III so I have not pictured one here. The astragalus (ankle bone) is only present on the hind legs.