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Showing results for tags 'phalanges'.
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Hello I am new here and looking for some help identifying some pieces. :)
Mike2 posted a topic in Fossil ID
Hello, can someone help me identify these? They are from Holmdel, NJ. Sorry I don not understand the format of this text box. Forces me to type this way.They look like phalanges maybe?Thank you so much for the help! - Mike -
Every year at the Denver fossil show it seems like I pick up some unidentified Kem Kem material. This is because for one it’s cheap, but also because it’s kinda fun to investigate this material. Here are eight pieces I picked up as a bulk set. I have some idea about identification on each of these but would love to hear other’s input. In the following pictures I have the top row being archosaur fossils and the bottom row being fish fossils. My guesses: 1. Caudal(?) vertebra centrum. Croc or theropod, but probably croc. 2. Croc dorsal vertebra 3. Croc centrum 4. Theropod pedal phalanx. Specifically, the distal-most phalanx of toe 1 (the “dew claw”). Narrowest ID I think I could guess we would be Ceratosauria indet., should probably be labeled as Theropoda indet. 5. Two fused fish vertebrae. Are these identifiable any more than this? 6. Gar or gar-like vertebra 7. Chondrichthyan fish vertebra. Maybe Onchoptistis numida? Can that determination even be made? 8. A gigantic ganoid scale. Any guesses just based on size? I’m unfamiliar with all the monster fish in this rock unit. Thanks :)
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- abelisaur
- abelisaurid
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Here's a (hopefully) interesting question on a topic well outside my wheelhouse. In the break room at the Florida Museum of Natural History sitting on top of the double refrigerators is a cast of a coelacanth, a painted resin cast of a Tyrannosaurus rex foot (the left one), and inexplicably a cleaning sponge that one of the artists at the museum has modeled into a cartoon character named Robert with quadrilateral trousers. I've been looking at these objects while nuking my lunch in the microwave oven next to the refrigerators for several months now. Just yesterday I finally noticed that there was something odd (to me) about the T-rex toes. Leading up to the ultimate distal/ungual on each of the three toes (disregarding the hallux "dew claw") are a varying number of phalanges. Somehow I had naively assumed that the number of phalanges in each toe would for some reason be consistent. For reference, each of the digits in our human hands have two phalanges (proximal and intermediate) leading up to the distal phalanx (ungual) on all but our highly useful opposable thumbs. Our thumb (pollux in medical speak) makes up for the missing intermediate phalanx by having a metacarpal that has more mobility than the metacarpals of our other digits. I found it fascinating to learn that the 3 primary toes of a theropod dinosaur, labeled II, III, & IV, have (very conveniently) 2, 3 & 4 phalanges leading up to the distal phalanx. I came across this excellent artwork from a paleoartist online: https://emilywilloughby.com/art/gallery/diagrams/theropod-foot-comparison It seems that our modern day dinosaurs (birds) share this same asymmetry in toe bones as the T-rex that started this little investigation. I'm guessing that to those who have taken anatomy or physiology classes or have a deeper understanding of birds or dinosaurs this would be common knowledge but somehow I've never paid enough attention to theropod feet till now. I do so enjoy learning new tidbits of information (quite regularly from this forum). In the off chance that this might be enlightening to other members I thought I'd share my micro-epiphany instigated by some T-rex toes on top of a fridge. Cheers. -Ken
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North Carolina Dinosaur or Mosasaur Vertebra or phalanges?
fossil_lover_2277 posted a topic in Fossil ID
Hi, I recently found a bone that looks like either a vertebra or a phalanges. The bone is from eastern North Carolina, legally collected from public land, and comes out of either the Cretaceous Tar Heel or Bladen formations. Both marine and freshwater organisms as well as dinosaurs are known to be found from the general area. The bone does not look like it comes from a turtle or crocodile, but I could be wrong. Is it a dinosaur or mosasaur bone, or something else? And no, there is no way this bone is Cenozoic. Thanks!- 8 replies
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- black creek group
- bladen formation
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Just bought these little beauties. Were sold as 'dromaeosauridae sp.' finger bones. Ad also named them deltadromeus. Now, I'm aware of the difficulties with ID'ing Kem Kem theropod but I like buying cheap-ish fossils and then trying to figure out what they really are. Part of the fun I guess. Total length of both bones is ~63mm. Not sure if the arrangement is correct, bones seem to fit well. They're small, which makes me wonder if they're theropod at all. Did look into deltadromeus, found the gualicho shinyae which might be the best reference point it seems. Bones do look like some of the gualicho material, but more like the feet and not hands. Then again: you'd expect bigger bones for dinosaur, unless these are juvenile I guess. There are some minor repairs on the smaller bone. Nothing too crazy. So I'm hoping you guys can help out, as always! Am I looking at (juvenile?) theropod bones with a likeliness of being deltadromeus (as advertised) or at something completely else?
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Hello, a set of Thescelosaur bones --radius and phalanges and ungual that I am interested in. From Montana USA. Not all from same specimen (except the phalanges). Anyone think it all looks ok, or see any red flags?
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From the album: Marine reptiles and mammals
A cool Moroccan mosasaur bone pile I acquired, sadly the matrix is so soft the piece broke in transit, but thankfully the splits missed all but 1 smaller bone. I'm considering just removing them from the matrix, and maybe mounting them in the same positions again, but I haven't decided yet. *more info to follow -
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!
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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.
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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.
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- 3
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- astragalus
- equus
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Hello All, Very nice to join the community. I found this bone last week near Peterborough on a soon to be building site...not certain of the rock/clay but it looks like Cambridge green sand where Bellamites abound. I think it's a metatarsal or upper phalanges of a Pliosaur. I've seen similar in the Sedgwick Museum here in Cambridge. Hope you like it.
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- Cambridge Green Sand
- Metatarsal
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