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Showing results for tags 'incisors'.
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Found what looks to be a partial jaw with root fragments in Southeast Texas the other day. Looks like it would have had two smaller incisors in front with two much bigger teeth to the sides. Then a smaller peg tooth on each side. Boxes on the green mat are square inches. I've looked through all my books and at some different jaws online, but I can't find anything that seems to match the number of incisors and and size difference. Any ideas would be great.
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Any ideas on the id of these Indonesian Teeth ? Mammal incisors? Wolf? Bear?
Adie_uk posted a topic in Fossil ID
Hi I got these teeth with some other fossil and i just dont know what they are from. They are Pleistocene I believe going of the other fossils from this area. (Indonesia, Java) Teeth numbered 1 and 2 are crocodilian, i know that much, they are clear to see and still have the serrations down either side... I am not sure if tooth 3 is also crocodilian? but maybe the surface/ details of the tooth has been polished (a real bad habbit they have over there) but teeth 4,5 & 6 are different. Their colours are very different, but again, I'm not sure. I think they have been polished also. I did have a tooth a while back that was ID'd as bear (species unverified) not sure if these are bear, wolf, or something else? It's quite hard researching fossils from there, so would be great to hear your views., Many thanks in advance. sorry took these without scale, they measure largest 130mm and the smallest 70mm -
From the album: Brazos River Finds--August 2021
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- brazos river
- cheek teeth
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White River Formation small incisors - Rodent? Lagomorph?
Opabinia Blues posted a topic in Fossil ID
Hello! This is a small fossil from the White River Formation of Weld County, Colorado. To me it appears to be a set of front incisors rooted to a small piece of the maxilla or mandible. There are no teeth or tooth sockets next to the two that are there, and so this makes them look like the two incisors characteristic of rodents and lagomorphs. Interested if anyone can tell me anything else about them. Two photos are through a stereo dissecting microscope at 20X magnification, the other two, though blurry, should give a sense of scale. The entire fossil is about 9 mm tall, with the tooth crowns themselves being about 4 mm tall. Thanks!- 15 replies
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- brule formation
- colorado
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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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- astragalus
- equus
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