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  1. Bateman, R.M. and DiMichele, W.A., Escaping the voluntary constraints of “tyre-track” taxonomy. Taxon 00 (00), pp. 1–16 Wiley PDF Yours, Paul H.
  2. Here is Arizona Paleontology Literature by Taxonomy. Main page of Arizona Paleontology Guide link This is a work in progress. I am working on formatting issues. Databases sorted by taxon Wikipedia, based on Paleobiology Database/Fossilworks link Thousands of fossil names ( found in Arizona) sorted by age and alphabetically. Plants Demko, Timothy. 1995. Taphonomy of Fossil Plants in the Upper Triassic Chinle Formation. Ph. D. dissertation, University of Arizona. link Nations, J.D., Swift, R.L., Croxen, F,
  3. doushantuo

    paleozoic malacology

    DBNA Middle and Upper Devonian Cryptodonta (Bivalvia)from the Pelagic Hercynian Facies -Taxonomy, Stratigraphy, and Paleoecology Judith Nagel Inaugural dissertation,2006 ABOUT 5,8 MB the research areas on a Devonian geodynamic reconstruction :
  4. link Reassessment of a juvenile Daspletosaurus from the Late Cretaceous of Alberta, Canada with implications for the identifcation of immature tyrannosaurids Jared T.Voris, Darla K. Zelenitsky, François Therrien & Philip J. Currie NATURE Scientific Reports | (2019) 9:17801 | https://doi.org/10.1038/s41598-019-53591-7
  5. Greyideas

    A case for Troodon

    In 2017 a study came out claiming that Troodon is a dubious genus (not invalid like some people claim!), he goes on to state that any new fossil discoveries assigned to Troodon would need to be from the Judith river formation. He later implys that the only fossil of Judith river formation troodon is the holotype specimen (which is a tooth). The last part is actually false! I want to create a discussion around this as they have been many teeth, eggs and even vertebrae from the Judith river formation that seem to suggest that the 2017 is flawed.
  6. doushantuo

    cretaceous,USA,Pisces

    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
  7. What is the proper ending for the specific name of Wilkingia terminale: terminale or terminalis? Allorisma was renamed Wilkingia in 1959 by Wilson. I suspect since the genus name was changed the ending of the specific name needed to change to match the case, gender and number of the genus name. Anyone fluent in Latin and good at matching their word endings? http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=18845 http://entomology.ifas.ufl.edu/frank/KISS/kiss9.htm
  8. 7 ft tall Three toed tracks Walks flat on its feet, not on the sides of its feet Three fingered claw marks Osteoderms in skin Ancestor of cloepus, not bradypus Found in North America (do any known ground sloths have a smaller tail or even no tail at all?)
  9. Zenmaster6

    Question on Taxonomy

    Hi, I have looked through the internet and couldn't find information on this and thought maybe someone passing through could give me and quick answer. Why things share similar words in latin when sometimes they are not related at all. For example Dickin(Sonia) ( a flat Ediacaran animal ) Dick(Sonia) ( a tree fern ) Cook(Sonia) ( one of the first vascular plants ) These are three different species that share not too much. (aside from everything is connected) Or another example is: Archaeo(therium) ( a boar like predator in the Miocene ) Kayenta(therium) (
  10. Study confirms horseshoe crabs are really relatives of spiders, scorpions March 9, 2019 by Kelly April Tyrrell, University of Wisconsin-Madison https://phys.org/news/2019-03-horseshoe-crabs-relatives-spiders-scorpions.html Ballesteros, J.A. and Sharma, P.P., 2019. A Critical Appraisal of the Placement of Xiphosura (Chelicerata) with Account of Known Sources of Phylogenetic Error. Systematic Biology. https://academic.oup.com/sysbio/advance-article/doi/10.1093/sysbio/syz011/5319972 An unrelated article for cat fans is: S
  11. doushantuo

    Who are you calling dimorphic

    Parent_1997-Geobios.pdf Ontogeny and Sexual dimorphism of Eurycephalites gottschei(Tornquist)(Ammonoidea) of the Andean Lower Callovian(Argentine-Chile) Geobios 30-3,30-6-1997 recommended? You bet!! Avoid if allergic to quantitative analytic data treatment
  12. Fossils key to fulfilling Darwin's 160-year-old prediction December 12, 2018, University of Salford https://phys.org/news/2018-12-fossils-key-fulfilling-darwin-year-old.html The paper is: Beck R.M.D., and Baillie C. 2018. Improvements in the fossil record may largely resolve current conflicts between morphological and molecular estimates of mammal phylogeny. Proc. R. Soc. B. 285: 20181632. https://www.biorxiv.org/content/early/2018/07/20/373191 https://www.biorxiv.org/content/biorxiv/early/2018/07/20/373191.full.pdf https://ro
  13. 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
  14. John S. Peel Department of Earth Sciences (Palaeobiology), Uppsala University, Uppsala, Sweden GFF ,2018, Vol. 140, No. 3, 249–253 A new look at Pleurotomaria perlata Hall, 1852 (Gastropoda) from the Silurian of Laurentia peelgastropmollusilurpaleozoic at Pleurotomaria perlata Hall 1852 Gastropodan of Laurentia.pdf about 1,1 MB HIGHLY RECOMMENDED brief discusions on /comparisons with : Liospira,Pycnotrochus
  15. Everything you always wanted to know about nomenclature and taxonomy. A workshop at the Museum of Natural History Vienna: http://193.170.196.88/workshops/Workshop_Nomenklatur_Vortrag.pdf (roughly 20MB - 142 pages) Have fun Thomas
  16. So I've been reading about paleontology for awhile now, I've read all sorts of books and articles and theses, but the one thing I don't understand is what is the complete list of levels of classification? The average example usually shows eight, in this order: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. But since this is only basic taxonomy there are more than just eight; the ones I know are: Domain, Kingdom, Phylum, Subphylum, Grandclass, Class, Subclass, Infraclass, Legion, Cohort, Grandorder, Order, Suborder, Family, Subfamily, Tribe, Genus, Species, and Subspecies; b
  17. Hi all, How do you all go about pronouncing the scientific names of species that you find? So far, I've just gone with what sounds right and tweaked it based off what I hear others say. Most genus and species names are derived from Greek and Latin I believe, so looking at pronunciations in those languages may help. But is there any outside resource that you all use, or do you just say it how you see it? I'd hate to disrespect a shark by butchering his name!
  18. doushantuo

    Starting from scratch

    dittmars12862-015-0568-x.pdf object of contention(from the GAO article,which is freely accessible online and/or might be in several libraries here on this very forum : Dinosaurs/feathers or hair ,external appearance of extinct vertebrates, possible host-/parasite co-evolution,would the past biogeography of host and parasites coincide,,,,etc
  19. Can a better linguist than I (not hard!) help out here? The belemnite species suffix for Lagonibelus beaumontiana (d'Orbigny) would presumably be based on "belus" being feminine. However, original Russian sources give it as "L. beaumontianus" and other belemnite genera with the same element (Pleurobelus, Gastrobelus etc.) all have masculine species endings. I know gender endings can be tricky and -us isn't always masculine but there seems to be widespread discrepancy here. (The London NHM and Martill & Hudson's Fossils of the Oxford Clay both go wit
  20. doushantuo

    Upper Paleozoic of Texas

    "Permocarboniferous" caveats given its age(1952): outdated taxonomy for some taxa,possibly The photographs are poorly scanned and leave something to be desired* Archer,Baylor,Wichita,Throckmorton,Young and Clay counties About 5,3 Mb edit:make that "practically useless",morphological details not visible Some good line drawings,though apologies if repost
  21. What does it take for a species to officially be “described”? I know there must be more than just having a paper written about it, there must be some minimum requirements for the contents of the paper. And am I correct that you can’t establish a full species name unless it has been “described”?
  22. doushantuo

    merycoidont lectotype

    madermerycod21257-12488-1-PB.pdf Horrible mistake:of course it's merycoidont The "click and hold option to edit title "doesn't seem to work? EDIT As somone famous once said : "I stand by the mistakes I've made"
  23. doushantuo

    Old news

    As far As I could ascertain, not posted yet edit: Amazing Czech Open-Access Pdf Library on this very forum Posted by Piranha in 2013 you live & learn Šnajdr M. (1983): Revision of the trilobite type material of I.Hawle and A. J. C. Corda, 1847 Sborník Národního muzea v Praze, řada B - Přírodní vědy 39 (3): 129. [PDF fulltext] NB 35, Mb or thereabouts TAXONOMY warning:This is from 1983,remember!!
  24. Are Mosasaurs considered lizards?
  25. squali

    Taxonomic Vandals

    A Few Bad Scientists Are Threatening to Topple Taxonomy - Smithsonian https://apple.news/AQu_Npdw-SUyRMHleDgGc8gSmithsonian article thought this was interesting and outrageous
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