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  1. Marco90

    Morocops ovatus

    From the album: My collection in progress

    Morocops ovatus McKellan & Chatterton 2009 Location: Timrhanrhart Formatiom, Djebel Ouften, Morocco Age: 400 Mya (Eifelian, Middle Devonian) Measurements: 5x3 cm (trilobite), 8x7 cm (matrix) Kingdom: Animalia Phylum: Arthropoda Subphylum: Trilobitomorpha Class: Trilobita Order: Phacopida Suborder: Phacopina Family: Phacopidae
  2. Hardly anybody ever talks about the Cambrian fossils of the southern midcontinent (USA). They're super-underappreciated. Show us what you've got! Here's one to start us off: Thorax and pygidium of a trilobite, possibly Orygmaspis, typically referred to as "Orygmaspis cf. Orygmaspis llanoensis" but probably a different species altogether. Note the two pairs of macropleural spines marking the final thoracic segments. Davis Formation (late Cambrian: Furongian), south side of Highway 8, St. François County, Missouri.
  3. A seemingly simple question seems to not have a simple answer. How many orders of trilobites are there? Not everyone agrees on the number but is there a number that is generally accepted by the experts? I have seen anywhere from 9-14 different orders. @piranha has 14 in this thread, Sam Gon III has 11 on his site and I have seen many other sites with different numbers. Which is most up to date? Thanks in advance for any feedback. I'm going to tag two resident trilobite experts ahead of time. @Kane @piranha That was more than one question but they're all in the sa
  4. Just a note that James Cullison's 1944 monograph on the rocks and fauna of the upper Lower Ordovician of Missouri and Arkansas is now freely available for download or perusal at https://archive.org/details/paper-cullison-1944-the-stratigraphy-of-some-lower-ordovician-formations-of-the This publication has always been devilishly tough to get a hold of. A nice systematic paleontology section deals with the many gastropods and other mollusks as well as the less diverse brachiopods, trilobites, and sponges. The monograph covers the following formations as currently accepted in Missour
  5. On July 1st, 2021, I went for the first time to a public, personal site and was very pleased with the results of my fossil excursion. The locale consists of several exposed formations, namely the Liberty formation I was hunting in. In my region of southwestern Ohio, that's known to be one of the best fossil-hunting formations due to its remarkable preservation of particularly fragile Ordovician life, even when compared to the excellent fossil preservation quality of other formations in the area. The thirty-three degrees Celsius heat was rather hot by itself, and as the sun's rays
  6. ashleydawno4

    Trilobite Information

    I have had this trilobite since I was a small child, I’m now nearly 35. I don’t know anything about it or it’s value. I am looking for help on identifying what kind, how old, and anything else helpful. Anything helps. Thank you!!
  7. Crankyjob21

    Some really cool fossils from my land!

    My collection of some really cool fossils on the land most of the fossils I have in my collection are bought so it’s always nice to find something actually in the field. Now my main goal with this post is to try to identify the trilobite I found today although it only has the head piece, it clearly shows the eye and part of the gabella. The horn coral which are the sort of conical fossils should help identify the age of the rocks. if anyone else can give an ID on the rest of the fossils that would help thanks. By the way these were all found in Dane County, Wisconsin. (PS) I have no clue what
  8. Geyer, G., Landing, E. 2021 The Souss Lagerstätte of the Anti‑Atlas, Morocco: Discovery of the First Cambrian Fossil Lagerstätte from Africa. Nature Scientific Reports, 11(3107):1-8 PDF LINK
  9. Peat Burns

    Briggs TFF Report

    This is a belated report from the Briggs TFF gathering last spring. Here are some photos of TFF'ers working the site: Here are my finds (not in phylogenetic order). Scale in mm throughout. I guess I'll start with one of my bucket listers, a large goniatite: Next, the trilobotes: And "those other arthropods": Now the gastropods: Other Mollusca: Crinoidea: Seedles
  10. Camouflage

    Fossil Models

    Hello to everyone. I am studying Geology in the Aristotle University of Thessaloniki and I am facing difficulties in passing the subject of Invertebrate Paleontology. This subject requires Identification of fossils both in power point but also live. Because of this I am interested in buying models (paper models, plastic models , whatever) of fossils. I have been told by my professor that some of the samples exhibited during classes were sold to the University a very long time ago by a well known shop which I will not name that sells such products. Sadly though I have not been able to find wha
  11. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com
  12. Hello dear fellows, Any ideas about this one from Fezouata Shale? It has 2,8 x 2,0 cm. A Brachiopod, a Hyolith, a Chrondrophore, a Clam??? Thanks in advance.
  13. Hello, I am brand new at fossil collecting and am trying to get specimens for my science class (I’m a high school science teacher). I bought a few fossils pretty cheap not knowing how prevalent fakes are. I think some are fake, partially faked, or enhanced. I don’t want to misinform my students in what is real and what isn’t so I’d love some help! (Fakes aren’t the worst thing for me since we can discuss the use of models in class, I just need to know what is real or fake). Here is my first specimen: a trilobite of unknown origin (I havnt seen one like it online which is why I think it i
  14. doushantuo

    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
  15. doushantuo

    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
  16. doushantuo

    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)
  17. doushantuo

    Notice

    Notice preliminaire Joachim Barrande:Sur le Systeme Silurien et les Trilobites de Boheme Text only,about 6,6 MB LINK Systeme Silurien du Centre de la Boheme Premiere partie:Recherches paleontologiques vol 1: planches Crustacees etTrilobites (plates/Atlas)..........ABOUT 20,8 MB systemesilurienbarrande supplement au volume 1: Trilobites,crustacees diverses et Poissons size: about 15,5 Mb LEGAL STATUS:out of copyright aetiology(why go look for it?): total annoyance at seeing this thing cited so often and not having it
  18. doushantuo

    Montagne Noire,a short piece

    FeistCourtessolebiogeograsiantypepaleozoictrilobcracscparisi1984.pdf Decouverte de Cambrien Superieur a trilobites de types est-Asiatiques dans la Montagne Noire(France meridional) Raimund Feist,Robert Courtessole C.R Acd.Sc. Paris,t.298,serie II,no 5/1984
  19. doushantuo

    the trilobites of Giessen

    LINK Gerhard Hahn and Michael W.R.Amler Revison der Karbontrilobiten von Koenigsberg b. Giessen Geologica et Palaeontologica,19,s.71-79,28-11 1985 note:Konigsberg with diacritic trilobites from an olistostrome("submarine slide") Olistostromes are VERY common in Paleozoic deposits Nota very big bene:In German English language abstract present
  20. doushantuo

    ovalocephalus

    zhouzhitrilobarthropevolRSL.pdf Evolutional trends and Paleobiogography of the Ordovician Trilobite Ovalocephalus Korleva 1959 Zhou Zhiyi,Yuan Wenwei,Zhou Zhiqiang Proceedings of the Royal Society,B,2010,v.277,p.257-266
  21. doushantuo

    bathyurus and Eomonorachus

    ontariomusbathyurtrilobitesbathyureomonorbiofacies00ludv.pdf about 2.1Mb Rolf Ludvigsen The Trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance Royal Ontario Museum Life Sciences Contributions 114 (1978) As far as I could ascertain,not posted previously.
  22. Gen. et sp. indet.

    trilobite

    Erratic boulder from central Europe. Ordovician or Silurian. Any ideas as for the trilobite group, e.g. order? The ornamentation is quite characteristic, I presume. Librigena?
  23. Gen. et sp. indet.

    trilo head

    Cephalon, or more specifically - a glabella, my father found today, here in Poland. It is an erratic boulder and so its age is likely Ordovician or Silurian. Can someone tell the trilobite group or even a genus?
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