Search the Community
Showing results for tags 'calcaneum'.
-
I was asked if I would create a post to detail how I arrived at an ID for the Calcaneum I recently posted for consideration as fossil of the month (Feb, 2023). To start, immediately below are some photos of the Calcaneum in question. It's from the Beaumont Formation of Fort Bend County, TX, so it's likely Pleistocene in age. To start with I initially compared this Calcaneum to another in my collection from the same formation I'd previously identified as Cervid (likely Odocoileus) that seemed to be a similar size, but I was immediately struck by how different they looked excluding size. That inevitably lead to searching the wonderful comparative photos of the venerable Harry Pristis on this forum which in turn eventually lead me to this thread; The image Harry Pristis posted with his first response had a calcaneum labeled simply "cat" and the similarity with my specimen had me looking for comparisons of various Felid calcaneum. Comparisons with the photo below (again by Harry Prisitis) initially had me ruling out Puma concolor as a likely candidate. But at that point I started searching for any 3d models of calcaneum to use for comparison and the two that looked closest were these; https://sketchfab.com/3d-models/mountain-lion-calcaneus-2de1fc24f1d445f3bc6701b40e22d606 https://sketchfab.com/3d-models/mscc098-puma-concolor-juvenile-left-calcanium-feb2092d9fc04ba98fa4ed1cbc22a877 However those models don't give dimensions so I jogged on over to; http://www.boneid.net/product/florida-panther-puma-concolor-left-calcaneus-superior-view/ which places that specimen ID'd as Puma concolor at just over 7cm in total length. Mine is just under 7cm and compares favorably to those photos as well. Finally a further search lead me to these two figures from different academic papers; https://www.researchgate.net/figure/3D-landmarks-shown-on-the-calcaneum-of-a-mountain-lion-Puma-concolor-in-laterodistal_fig2_313698350 https://www.researchgate.net/figure/1-7-anterior-view-8-14-medial-view-of-calcaneal-elements-of-extant-carnivorans-1-8_fig3_332234760 At which point I was confident enough in my ID to send photos along to Dr. Bakker and David Temple of the Houston Museum of Natural Science for their consideration. While Dr. B was initially unsure thinking the specimen was too straight in overall profile, David Temple was eventually convinced when provided with the above sources used for identification. I'm still not certain whether Dr. B has been convinced or whether he might prefer Felid Indet. for the time being, but with the fossil in hand I've thrown all caution to the wind and stuck with Puma concolor for now, but I consider any identification subject to revision when presented with additional data. Thanks! -CDiggs
-
Hello all. First of many IDs I will be requesting of the fossils I have found in the Verdigris Creek of Northeastern Nebraska. This creek runs through the Valentine Formation which is roughly dated to 15 million years old, but is also known to cut through Pleistocene exposures. This bone I found has almost certainly been gnawed on- it matched up to the size of one of the larger stem hipparions found around here, but I am still unsure whether it could possibly be camelid or anything else. Let me know your thoughts!! Thank you.
-
@Harry Pristis Harry, I need your help on an ID and discussion of Florida Calcanea. These are great photos Harry, but I have found one that does not quite fit. It is shorter and wider than the examples. I think that the one I have found here may be Palaeolama mirifica and the camel calcaneum in your photos may be Hemiauchenia macrocephala. What do you think? As always, thanks for your expertise. Jack
-
Found on the Brazos River just southwest of Houston. I know this is the distal end of a calcaneum, but I can't figure out whether it's horse, bison, or even bear - it seems to both match and not match pictures I'm finding online. Any help is appreciated.
- 10 replies
-
- brazos river
- calcaneum
-
(and 2 more)
Tagged with:
-
I found this bone while walking a beach in northern Spain back in January. It is about 5" (12.5 CM) long. The smaller end is somewhat rounded off but it doesn't look broken. In other words, I don't think the bone was much longer than it is now. Does anyone have any idea what it is? I have been told it might be a calcaneum from an ice age artiodactyl? Agree? Thank you in advance for your help. Rich
-
Hello! I was wondering if anyone might recognize this calcaneum from the White River Group of Nebraska. It is much larger than an oreodont. I have placed it next to oreodont calcanea for comparison. an articulated portion of the left foot of an oreodont is on top, middle is a single oreodont calcaneum, bottom is the unidentified calcaneum. (more pics to follow) An articulated portion of the left foot of an oreodont is on top, middle is a single oreodont calcaneum (right foot), bottom is the unidentified calcaneum (right foot). (more pics to follow)
-
Hey mammal experts! I found this calcaneum today on the Brazos River, pleistocene gravel. I'm leaning toward carnivore on this one, possibly big cat or dog? Thanks!
- 6 replies
-
- brazos river
- calcaneum
-
(and 1 more)
Tagged with:
-
From the album: Mammal Fossils
Bison priscus Bojanus, 1827 Right side Calcaenum or heel bone of a Steppe Bison. Location: North Sea, Netherlands Not to be mistaken for the heel bone of a giant deer, which is quite similar. megaloceros giganteus heel bone© © Olof Moleman
-
Antelope metapodial and calcaneum from Late Pleistocene
D.N.FossilmanLithuania posted a topic in Fossil ID
Dear Guys, I have two possible bones of antelopes, they are very small to ungulates. I found these two bones in the Late Pleistocene sand layers of Varena town, South Lithuania. The calcaneum is only 4 cm length, metapodial- 10,5 cm length. The confirmation of these fossils would be very helpful to my further articles. Any idea what is this? Best Regards Domas -
Found on Peace River in Hardee County. Shorter than examples I found on this form and elsewhere. 2" long.