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Showing results for tags 'dentition'.
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A friend found this on a gravel bar in Southern Minnesota. It definitely looks like horse but it is quite large. 4" x 1 5/8". I couldn't find any good size references for horse molars online. If horse are these dimensions outside the normal range?
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Differentiating between Oreodont and camel jaws/teeth
Opabinia Blues posted a topic in General Fossil Discussion
Hello! Does anyone know of any good references for differentiating between Oreodont and camel dentition, particularly in regards to the little jaw sections that are frequently found in White River deposits? I’ve been unable to find any good literature on the topic and am having some difficulty with differentiating between the two. -
What position is this molar from? Am I correct in thinking the m3 molar is the only molar with a third lobe? As shown below. I believe its bison bison m3?
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Associated Cretoxyrhina (vraconensis) dentition
britishcanuk posted a topic in General Fossil Discussion
Hi, Recently, I had the good fortune to acquire this set of Cretoxyrhina (vraconensis) teeth from the Britton Fm., Texas. I have a detailed account of it’s discovery which describes almost all of these teeth being found together in an area about 18” x18”, with a few stragglers found just outside the main pile of teeth. It’s not complete, but It looks like most of the positions are represented. Some of the larger anteriors were not recovered and I suspect at least one or two positions are missing. I have arranged these teeth into positions that look close to me, but ther- 6 replies
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cricetid and arvicolid rodents of the California Wash local fauna,Late Blancan of the San Pedro valley,Arizona Cristiana Mezzabotta 2015_Mezzabotta_224.pdf Palaeovertebrata,Montpellier/v.26,1-4,1997
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JOP New small-bodied ornithopods (Dinosauria, Neornithischia) from the Early Cretaceous Wonthaggi Formation (Strzelecki Group) of the Australian-Antarctic rift system, with revision of Qantassaurus intrepidus Rich and Vickers-Rich, 1999 Matthew C. Herne, Jay P. Nair,Alistair R. Evans ; Alan M. Tait Journal of Paleontology (2019) 93 (3): 543–584. NB:5,7 MB NB extra: this links to the page,but,hey...
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- galleonosaurus dorisae n.g.n.sp
- strict consensus cladogram
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here A new microvertebrate assemblage from the Mussentuchit Member, Cedar Mountain Formation: insights into the paleobiodiversity and paleobiogeography of early Late Cretaceous ecosystems in western North America Haviv M. Avrahami, Terry A. Gates, Andrew B. Heckert, Peter J. Makovicky, Lindsay E. Zanno PeerJ 6:e5883 https://doi.org/10.7717/peerj.5883 about 11 MB
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Tooth wear and microwear of theropods from the Late Maastrichtian Marılia Formation (Bauru Group), Minas Gerais State, Brazil Carlos Roberto A. Candeiro, Philip J. Currie, Caio L. Candeiro and Lılian P. Bergqvist Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 106, 229–233, 2017 candeircurriedinosaattriboldentittooth_wearcretac_theropods_maastrichtianmminasgeraisbrazil.pdf
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- wear surface
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Frenchetal.17-toothontogeneticmorphologyinwhitesharks.pdf Journal of Fish Biology (2017) 91, 1032–1047 The tooth, the whole tooth and nothing but the tooth: tooth shape and ontogenetic shift dynamics in the white shark Carcharodon carcharias G. C. A. French, M. Stürup, S. Rizzuto, J. H. Van Wyk,D. Edwards, R. W. Dolan, S. P. Wintner A. V. Towner and W. O. H. Hughes BTW:that's a horrible pun to inflict on humanity From the text: "One of the major limitations in establishing the ontogenetic relationships between morphology, diet and maturity, especia
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Early Cretoxyrhina (vraconensis) dentition question
britishcanuk posted a topic in General Fossil Discussion
I’m wondering if anyone has put together a dentition of an early Cretoxyrhina with narrow lower teeth and cusped laterals and posteriors. If you have photos of something like this I would very much appreciate seeing what one looks like. Thanks in advance! R~ -
A new large Late Cretaceous lamniform shark from North America, with comments on the taxonomy, paleoecology, and evolution of the genus Cretodus Kenshu Shimada &Michael J. Everhart Article: e1673399 | Received 30 Nov 2018, Accepted 09 Sep 2019, Published online: 18 Nov 2019 LINK (description of Cretodus houghtonorum n.sp) edit:5,30 MB,or thereabouts relevant: Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character Vol. 210 (1921), pp. 311-407 V I I I .— On the Calcificati
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ray Dental sexual dimorphism and morphology of Urotrygon microphthalmum Bianca de Sousa Rangel Zoomorphology,april 2016 RECOMMENDED
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Development and Evolution of Dentition Pattern and Tooth Order in the Skates And Rays (Batoidea; Chondrichthyes) Charlie J. Underwood,*, Zerina Johanson,, Monique Welten,, Brian Metscher,Liam J. Rasch,, Gareth J. Fraser,, Moya Meredith Smith Citation: Underwood CJ, Johanson Z, Welten M, Metscher B, Rasch LJ, Fraser GJ, et al. (2015) Development and Evolution of Dentition Pattern and Tooth Order in the Skates And Rays (Batoidea; Chondrichthyes). PLoS ONE 10(4): e0122553. https://doi.org/10.1371/journal.pone.0122553 given the collective NOUS and expertise of the authors:DO NOT
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Quite some years back my late uncle purchased the attached fossil at a gem show here locally. Too be completely honest it looks kind of fake to me... but im might just have a untrained eye. My Aunt has taken the picture. I Couldn't possibly imagine it being from around here so I'm really not sure what age it could be or what location it is from. I'll try to acquire some more photos with a scale shortly. I know its a shot in the dark but any feedback would be greatly appreciated. -Nick
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Hi guys! I just uploaded a gallery of modern Carcharhinus upper dentitions: . The images are from my master's thesis (Smith 2015), the full text is available at (https://www.researchgate.net/publication/316735477_Species_discrimination_in_Carcharhinus_shark_teeth_using_elliptic_Fourier_analysis). Unfortunately, due to file size limitations, the images in the paper are not really good enough for detailed analysis of the morphology. So I have uploaded them individually here. I personally extracted the teeth from almost all of these jaws...If I remember correctly, they were soaked in isopro
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- carcharhinus
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Found at Myrtle Beach South Carolina, thought it might be some kind of ray tooth plating but it doesn't match any of the ray stuff I have, any ideas? One picture has the ray teeth I'm familiar with to the left of unknown piece.
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Recommended!
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- keratinous tissue
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Intermediate and Symphyseal/Parasymphyseal teeth in sharks
The Jersey Devil posted a topic in General Fossil Discussion
Hey everyone, I was just wondering what exactly intermediate teeth were and also what the difference between symphyseal and parasymphyseal teeth is. The small fourth tooth in the upper jaw of Carcharias taurus is marked as an intermediate. Thanks for any help!- 3 replies
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- intermediate teeth
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xinxuxiaolsmallestdinosazhaoianusmicrorapnaturezhonghetopost200010b4c14c3.pdf the other paper on this species(Hwang/Norell) is ,naturally,in Fruitbat's Library,possibly in some others as well salient points(or:"things you might want to remember about this article")(apart from osteological details): edit,hours later:possible repost,because I just noticed this one in Fruitbat's Library. Joe,i feel i owe you an apology. note Maniraptora (GAUTHIER): I posted the Gauthier,a very influential cladistic paper,a while back Note 2: "Archaeor
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- archaeoraptor
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sizetheropusapalaiosOntootroodontologgigant_the_Occurrence_of_Exceptionally_Large.pdf
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deklnqwebl_2012.pdf Outtake:
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euheloptitanosaudentittheFULLTEXT01_(1).pdf outtake:
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EHRET_al-2012-Palaeontology.pdf
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- elasmobranch
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My attempt at a one row megalodon and great white jaw
mattbsharks posted a topic in General Fossil Discussion
This is my attempt at arranging the teeth. I thought it would be fun to try. I have no idea how to construct the actual jaw or how to do proper dentition. Dog provided for reference. The photos were too large to post so here are the links: https://drive.google.com/file/d/0B7QcbeYzTMs6MnBNbnlfcTJPcFk/view?usp=sharing https://drive.google.com/file/d/0B7QcbeYzTMs6cFVDbVBaclBaanM/view?usp=sharing https://drive.google.com/file/d/0B7QcbeYzTMs6VVNWdkVBNGVpMzQ/view?usp=sharing https://drive.google.com/file/d/0B7QcbeYzTMs6NnJTMldiT08wbEk/view?usp=sharing -
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