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Showing results for tags 'taxonomy'.
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New paper out today that examines the Spinosauridae family. Unfortunately the paper is mostly in Portuguese. Google translate can be very helpful. Paper: "We conclude that out of these 20 taxa six can be regarded as nomina dubia (Ostafrikasaurus crassiserratus, Suchosaurus girardi, Spinosaurus maroccanus, Siamosaurus suteethorni, Sinopliosaurus fusuiensis, Suchosaurus cultridens)due to the lack of diagnostic material and autapomorphies." https://sbpbrasil.org/publications/index.php/paleodest/article/view/357
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Are Mosasaurs considered lizards?
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A discussion on lycopsid taxonomy - Escaping the voluntary constraints of "tyre-track" taxonomy
Oxytropidoceras posted a topic in Fossil News
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. -
Wilkingia terminale vs Wilkingia terminalis
DPS Ammonite posted a topic in General Fossil Discussion
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 -
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?)
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- morphology
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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) ( a semi-aquatic rodentoid from early Jurassic) Mega(therium) ( a huge land sloth from early Pliocene ) Balochi(therium) ( huge hornless rhino from oligocene) However like the Therium family above, this simply means mammal or marsupial. Sonia contains animals and plants. And unlike Therium I still have no explanation for Sonia. If anyone knows, please let me know.
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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: Scientists have finally discovered what makes celebrity cat Lil Bub so 'magical' It took an international team of geneticists to crack the code of this cat's mystique. by Karin Brulliard, The Washington Post, INFORUM https://www.inforum.com/entertainment/981309-Scientists-have-finally-discovered-what-makes-celebrity-cat-Lil-Bub-so-magical https://www.grandforksherald.com/entertainment/news/4579948-scientists-have-finally-discovered-what-makes-celebrity-cat-lil-bub-so https://phys.org/news/2019-03-reveals-genome-celebrity-cat-lil.html The paper is: Mike Bridavsky et al. Crowdfunded whole-genome sequencing of the celebrity cat Lil BUB identifies causal mutations for her osteopetrosis and polydactyly, (2019). DOI: 10.1101/556761 https://www.biorxiv.org/content/10.1101/556761v1 Yours, Paul
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Fossils key to fulfilling Darwin's 160-year-old prediction
Oxytropidoceras posted a topic in Fossil News
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://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.1632 Yours, Paul H.-
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