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Found 196 results

  1. Fossil ID Requested, paleozoic reef

    Here is a limestone reef rock from Tucki Mountain in Death Valley. The strata is vertical. There was a band of reef rock several hundred feet across. Lots of crinoids but it's the sponge / archaeocyathan fossils that I'd like to know about. This is the first time I've done this, so I'm not sure how the answers arrive... Thanks very much! Dick
  2. Here are some color pencil sketches of some Paleozoic agnathans I drew many years ago (maybe 6 or 7 years ago). Time is scarce, but seeing these again I somehow feel inclined to start sketching some new concepts again Polybranchiaspis yunannensis (Galeaspida) Early Devonian Qujing, Yunnan, China Haikouella lanceolata (Agnatha, Haikouellidae) Early Cambrian Chengjiang, Yunnan, China Stensiopelta pustulosa (Cephalaspida) Early Devonian Ternopil, Ukraine Pteraspis (Pteraspiformes) Early Devonian Ternopil, Ukraine
  3. Brantford, Ontario Geology??

    Hey guys, So I discovered there is actually GO transit service from Hamilton, Ontario to Brantford, Ontario and Im actually excited to discover this (HOORAY!!). Does anyone know the geology of the city? Im also looking for papers/files that can help me know what to find there. Thanks for any help!
  4. miscellaneous Moroccan mollusca

    2018_KlugPohle_Amessoui_ISCPP_fieldGuide.pdf The eastern Amessoui Syncline – a hotspot for Silurian to Carboniferous cephalopod research CHRISTIAN KLUG & ALEXANDER POHLE Münster. Forsch.Geol. Paläont. 110 244-260 17 Figs. Münster,March 2018 an excursion guide(More or less),and a nicely illustrated one recommended! (Some ichnites figured as well,amongst which a probable non-trilobitogenic Rusophycus)
  5. ID 3 species in a Permian themed exhibit

    I just went to this traveling exhibit in a museum in a city where my brother lives that it is about the animals and life in the Permian period and I got pictures of 3 fossils, an ammonite, a trilobite and a crinoid but I don’t know what species and genus they are?
  6. chelicerata rossica

    Marshall_et_al-2014-Palaeontology.pdf A DIVERSE CHASMATASPIDID (ARTHROPODA:CHELICERATA) FAUNA FROM THE EARLY DEVONIAN (LOCHKOVIAN) OF SIBERIA by DAVID J. MARSHALL, JAMES C. LAMSDELL, EVGENIY SHPINEV and SIMON J. BRADDY Palaeontology, Vol. 57, Part 3, 2014, pp. 631–655 Key words: Palaeozoic, Chasmataspidida, Heteroaspis, Dvulikiaspis, Nahlyostaspis, Skrytyaspis, convergence. "two novel chasmataspidid species: Nahlyostaspis bergstroemi gen. et sp. nov. and Skrytyaspis andersoni gen. et sp. nov. ‘Eurypterus’ stoermeri and ‘Tylopterella’ menneri are both redescribed as chasmataspidids, having previously been assigned to Eurypterida."
  7. stratigraphic framework of the Glenshaw

    link Martino, R. L., 2004, Sequence stratigraphy of the Glenshaw Formation(middle– late Pennsylvanian) in the central Appalachian basin, in :J. C. Pashin and R. A. Gastaldo, eds., Sequence stratigraphy,paleoclimate, and tectonics of coal-bearing strata: AAPG Studies in Geology 51, p. 1–28. size: about 6 Mb the emphasis is on sequence stratigraphy and (correlation of)paleosols: the need for a background of knowledge of these subjects lies in the gray area between "absolutely necessary" and "comes in handy"
  8. the Serpukhovian unconformity

    Campionserpukmaloofochemistry-_Geophysics-_Geosystems.pdf Constraining the Timing and Amplitude of Early Serpukhovian Glacioeustasy With a Continuous Carbonate Record in Northern Spain Alison Campion , Adam Maloof, Blair Schoene , Sergey Oleynik, Javier Sanz-Lopez , Silvia Blanco-Ferrera , Oscar Merino-Tome , Juan Ramon Bahamonde, and Luis Pedro Fernandez Geochemistry,Geophysics, Geosystems, 19. https://doi. org/10.1029/2017GC007369
  9. Any idea what this is?

    I assume this is a sea lily, but I may be wrong.
  10. I visited a small Paleozoic (Silurian) coral reef in Indiana the other day. No earth-shattering, jaw-dropping discoveries, but it's an interesting spot with dolomitized fossils. Here's a google earth view of the center of the reef. A nice mollusk, if anyone knows what species, let me know. It shattered when I tried to extract it, but I was able to glue it back together as you can see here. Sphaerexochus romingeri cephalon After extraction.. I believe this is a Platyceras: To be continued..
  11. Hey guys do any of you know where I can find Some placoderms here in Black Hawk County Iowa? I have only found a plate piece here and some of my friends found some WHOLE PLACODERMS. while I only have one tiny plate. If you can help me please and thank you!
  12. Have I Found a New Species?

    Hello, I'm 12 years old and my name is Kenan S. I think I have found a new species inside a Tabulate Coral! There seems to be tiny bivalves inside of the coral after I split the coral in half. Wherever the growths are there is a cavity in the coral missing from the region. Also something new to my notes on this coral is that it grows hexagons (like any Tabulate coral) but over each other, but when the 'parasite' eats at the coral it does not grow over the spot or just makes a couple new polyps like any other coral (I own a couple living corals in my 75 gal) it kills the surrounding couple polyps, and creates a new area of polyps. I put this find under this category because of how small the parasitic creatures are. I can barely see them with my own eyes and my microscope is currently broken so that's that.
  13. the Cambrian of Argentina

    harrington cambrian1670-1739-1-PB.pdf Horacio J Harrington Paleontologia del Paleozoico inferior de la Argentina I: Las faunas del Cambrico medio de San Juan Revisto del Museo de La Plata,T II,pt 11(Paleontologia) less than 2,5 MB NOTE: in spanish edit: Diacritics omitted
  14. possible Ontario river fossils?

    Can anyone identify the possible location where these might have been picked up? These are some of the last remaining unidentified and un-located items that I acquired from the old rockhound couple in Nanaimo, that caused me to come to TFF for ID help in the first place. I'm only getting around to it now. These aren't the most spectacular or important fossils, but it's always worth it if you can attach some info to them. Otherwise I'll eventually toss them out for garden rockery, probably. I thought I saw some similar items that someone had posted not too long ago, from a river in Ontario, in a town that started with P - Pickering? But I never followed up on it and I can't find that topic now. I suspect these are all from the same area, whatever area that is. They're all Paleozoic marine, and all but #3 are water-worn. First: This first piece I have already posted but I never got any confident answers about it. Maybe combined with the others I'll get further with it.
  15. Douglas, Wyoming

    LINK edit( 4,1 MB) Evidence for a large Paleozoic Impact Crater Strewn Field in the Rocky Mountains Thomas Kenkmann, Kent A. Sundell & Douglas Cook NATURE SCIENTIFIC REPORTS | (2018) 8:13246 together with (possibly!!) Bedout (Australia) and the Malvinas (see the post by Oxytropidoceras*) that would make three records for the late Paleozoic * Is the Falkland Islands Basin an Enormous Impact Structure ?
  16. trilobites africains,Algerie

    KHALD Les trilobites a faune benthique varie(FBV) dans la saoura-ougarta Systematique et paleoecologie Khaldi Ahmed Yacine memoire presente pour l óbtention du grade de magister en geologie soutenu le 10/6/2014 NB diacritics omitted summary description:Thesis
  17. Oryctocephalidae

    SHERGOLD CoMMONWEALTH OF AUSTRALIA DEPARTMENT OF NATIONAL DEVELOPMENT BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS BULLETIN 104 Oryctocephalidae(Trilobita: Middle Cambrian)of Australia BY J. H. SHERGOLD publication date: 1969 about 24 MB 58 pages of morphology and systematics,locality list,bibliography summary description(monograph)
  18. The Ordovician of Oland

    phosphthesi about 36 MB ******************** Phosphatized echinoderm remains from the upper lower Ordovician strata of northern Oland,Sweden preservation,taxonomy and evolution Magnus Svensson Examens arbete i Geologi vid Lunds Universitete n 105/1999 ******************** diacritics omitted("Oeland") Could the bee have any more knees? Nope. characterization:Monograph/thesis. 54 pages excluding bibliography
  19. devonian bryozoa of the United States

    BOAR Trepostomatous Bryozoa of the Hamilton Group of New York State By RICHARD S. BOARDMAN GEOLOGICAL SURVEY PROFESSIONAL PAPER 340 about 25 MB HIGHLY RECOMMENDED Among the subjects covered: Stereotoechid wall structure.__.--_---____ 30 Leioclemid wall structure_---_------_-___ 30 Trachytoechid wall structure.------------ 31 Leptotrypellid wall structure _____________ 32 Atactotoechid wall structure__-_-____.___ 32 Zoarial growth and taxonomy. ___________________ 33 Distribution of morphologic characters within Hamilton zoaria.--_--------------___-____ 33 Zoarial variation and species criteria. ____---__ 35 Mode of ramose zoarial growth.___________________ 38 People like Boardman,McKinney,Lidgard and Taylor got me interested in Bryozoa,back in the days
  20. Ordovician taphonomy, Iowa

    maquordovicusavanitphosphjt049-web.pdf Heyo Van Iten, Michael Lichtenwalter, Juliana de Moraes Leme,Marcello Guimarães Simões * “Possible Taphonomic Bias in the Preservation of Phosphatic Macroinvertebrates in the Uppermost Maquoketa Formation (Upper Ordovician) of Northeastern Iowa (North-Central USA)” Journal of Taphonomy, vol.4, issue 4/2006 *all diacritics omitted
  21. Montana, a shortish faunal review

    EASTON W.H.Easton: Carboniferous Faunas and Formation of Central Montana A study of the stratigraphic and ecologic associations and significance of fossils from the Big Snowy group of Mississippian and Pennsylvanian rocks Geological suvey Proferssional paper n.348/1962 Number of pages 157 PLATE two: stratidistribplate-2.pdf PLATE ONE(correlation/logs) plate-1.pdf to be used with some care with regard to (at least)the taxonomic aspects
  22. Wizardress from Oz

    here Dorothy Hill The Productinae of the Artinskian Cracow Fauna of Queensland University of Queensland papers,vol.3,n.2/1950 size: about 9,5 MB RECOMMENDED!!* * Dorothy Hill ()AND very good plates,IMHO
  23. problematica/incertae sedis from Europe

    THES about 10 MB generally quoted as being "unpublished" Fredrik Jerre: Silurian Conulariids from the Visby Beds,Gotland Examensarbeten I Geologi vid Lunds Univeristet,1988/n.25 recommended
  24. an Ordovician impact in the usa

    JGSL The Winneshiek biota: exceptionally well-preserved fossils in a Middle Ordovician impact crater Derek E.G. Briggs, Huaibao P. Liu, Robert M. McKay and Brian J. Witzke Journal of the Geological Society, 175, 865-874, 24 September 2018, https://doi.org/10.1144/jgs2018-101 Cannot recommend this one highly enough size:about 8,5 MB Note:the Ames impact straddles the Arbuckle/Simpson Boundary
  25. neo-ichnology!

    mardentomolichevo.1558-5646.2012.01743.x.pdf REANALYSIS AND EXPERIMENTAL EVIDENCEINDICATE THAT THE EARLIEST TRACE FOSSIL OF A WINGED INSECT WAS A SURFACE-SKIMMING NEOPTERAN James H. Marden EVOLUTION/jan.2013 a re-examination of conclusions reached in the item below knechthexapodlagerstatt2b1cf335.pdf Late Carboniferous paleoichnology reveals the oldest full-body impression of a flying insect Richard J. Knecht, Michael S. Engel, and Jacob S. Benner PNAS,vol.108/16,2011
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