Search the Community: Showing results for tags 'trilobite'.



More search options

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. carcharodon, pliocene, cypresshead formation, florida.
  • Search By Author

Content Type


Forums

  • Fossil Discussion
    • General Fossil Discussion
    • Fossil Hunting Trips
    • Fossil ID
    • Is It Real? How to Recognize Fossil Fabrications
    • Partners in Paleontology - Member Contributions to Science
    • Questions & Answers
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Member Fossil Trades Bulletin Board
    • Member-to-Member Fossil Sales
    • Fossil News
  • Fossil Sites
    • Africa
    • Asia
    • Australia - New Zealand
    • Canada
    • Europe
    • Middle East
    • South America
    • United States
  • Fossil Media
    • Members Websites
    • Fossils On The Web
    • Fossil Photography
    • Fossil Literature
    • Documents

Blogs

  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Sir Knightia's Blog
  • Terry Dactyll's Blog
  • shakinchevy2008's Blog
  • MaHa's Blog
  • Stratio's Blog
  • ROOKMANDON's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • Lindsey's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Back of Beyond
  • St. Johns River Shark Teeth/Florida
  • Ameenah's Blog
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • nicciann's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • maybe a nest fossil?
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • Just looking for where to post a pic of a weird fossil we found
  • trilobite guy's Blog
  • xenacanthus' Blog
  • barnes' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • Emily's MotE Adventure
  • farfarawy's Blog
  • Microfossil Mania!
  • A Novice Geologist
  • Southern Comfort
  • Eli's Blog
  • andreas' Blog
  • Stocksdale's Blog
  • fossilman7's Blog
  • Hey Everyone :P
  • fossil maniac's Blog
  • Piranha Blog
  • xonenine's blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Hihimanu Hale
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • TyrannosaurusRex's Facts
  • PaleoWilliam's Blog
  • The Paleo-Tourist
  • The Community Post
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed

Calendars

  • Calendar

Categories

  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians
    • Corals
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
  • Forams
  • Graptolites
  • Molluscs
    • Ammonoids & Nautiloids
    • Bivalves
    • Gastropods
    • Other Molluscs
  • Sponges
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Vertebrates
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Bony Fishes
    • Mammals
    • Sharks & Rays
    • Other Vertebrates
  • Other Chordates

Found 504 results

  1. Hey guys this is my koneprussia that has spines on spines!
  2. Hello, I am actualy working on a 3 D reconstruction of the Trilobite Triarthrus The body and my references as a blueprint :
  3. During the Christmas holidays, i had the opportunity to go out again for a trilobites hunt. Could spend 2 days there splitting shale. The site is Ordovician. The plan is to split good looking shale blocks, the bigger the better. For site pictures, you can go check on my previous report here I manage to find nearly complete or nearly complete bugs. The first morning, complete ones took their time to show up. The first one was this one : Neseuretus tristani, the most common on the site, but still a cool piece. On it's own it would have make my day. I will post more in a few days
  4. I just checked the weather forecast for next weekend. It looks promising. Right now all of our snow is melted, with no snow in the near future. The week is supposed to warm up to the mid 40's with saturday reaching a high of 49. I am planning on doing a Central New York Devonian Adventure! Sangerfield in the morning and Deep Springs in the afternoon. Are there any brave souls who would like to tag along? Dave
  5. Fossils reveal unseen 'footprint' maker, University of Aldelaide January 17, 2017 by Robyn Mills http://www.adelaide.edu.au/news/news90102.html https://phys.org/news/2017-01-fossils-reveal-unseen-footprint-maker.html The paper is: Gutiérrez-Marco, J. C., D. C. García-Bellido, I. Rábano, and A. A. Sá, 2016, Digestive and appendicular soft-parts, with behavioural implications, in a large Ordovician trilobite from the Fezouata Lagerstätte, Morocco. Scientific Reports 7, Article number: 39728 (2017) doi:10.1038/srep39728 http://www.nature.com/articles/srep39728 Yours, Paul H.
  6. Hello! I live in Las Vegas and I love fossil hunting in Frenchman Mountain, the there are trilobites everywhere, I finaly found a full body trilobite there, can you guys I.D this one for me? I am pretty sure they are Olenellus nevadensis, because they are common in Nevada (who would have guessed that?) but I am far from an expert.
  7. Ectilaenus giganteus 1

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  8. Neseuretus tristani 4 with counterpart

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani and counterpart : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  9. Up to date information about access to the Kinzer formation near Lancaster Pa, please. Expect to be in the area this weekend. Thanks, Gordon
  10. Neseuretus tristani - 4

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  11. Neseuretus tristani - 3

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  12. Neseuretus tristani 1 - view 2

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  13. Neseuretus tristani 1 - view 1

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  14. Indet trilobite from La Dominelais

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Indet. trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  15. Eodalmanitina destombesi destombesi

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Eodalmanitina destombesi destombesi : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  16. Partial Ectilaenus giganteus

    From the album La Dominelais - winter 2016/2017 - Ordovician

    A huge partial Ectilaenus giganteus found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  17. Ectilaenus giganteus 4

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  18. Ectilaenus giganteus 3

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  19. Ectilaenus giganteus 2

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  20. Neseuretus tristani - 2

    From the album La Dominelais - winter 2016/2017 - Ordovician

    Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA)
  21. This great question from Auspex a couple years ago can now be answered in the affirmative. Up until now there have been a few close calls but nothing conclusive. The earliest reference to alleged trilobite eggs was made by Joachim Barrande in 1872. C.D. Walcott also published a brief paper in 1877 and each of these were subsequently disproved by Percy Raymond in 1931. Zhang and Pratt 1994 also reported on possible eodiscid embryos but had to concede that they may have been produced by another soft-bodied arthropod. Now at long last we finally have what appear to be bona fide trilobite eggs. Not surprisingly, the remarkable preservation of pyritized Triarthrus specimens from New York have yielded this highly anticipated fossil gold. Pun intended, Enjoy! PYRITIZED IN SITU TRILOBITE EGGS FROM THE ORDOVICIAN OF NEW YORK (LORRAINE GROUPE): IMPLICATIONS FOR TRILOBITE REPRODUCTIVE BIOLOGY Hegna, Thomas, Martin, Markus, Soriano, Carmen (2015) Geological Society of America - North-Central Section - 49th Annual Meeting (May 19-20) Paper No. 20-3 - Presentation Time: 8:45 AM Despite a plethora of exceptionally preserved trilobites, trilobite reproduction has remained a mystery. No trilobite has preserved unambiguous eggs or genitalia. This study reports on the first occurrence of preserved, in situ trilobite eggs from Triarthrus eatoni from the Lorraine Group in upstate New York. Like other exceptionally preserved trilobites from the Lorraine Group, the trilobites are replaced with pyrite on their exoskeletons and ventral appendages. The eggs (presumably representing unfertilized eggs) are spherical to elliptical in shape, about 50 µm in size, and are clustered in the genal area of the cephalon near the lateral border. The eggs are only visible ventrally with no dorsal brood pouch or recognized sexual dimorphism. This location is consistent with how modern horseshoe crabs carry their unfertilized eggs. Trilobites likely released their gametes (eggs and sperm) through a genitalia pore of as-yet unknown location (likely near the posterior boundary of the head). If T. eatoni’s reproductive biology is representative of other trilobites, they spawned rather than mated and exhibited r-strategy reproduction. A more detailed view of the anatomy associated with the eggs in currently in progress with synchrotron x-ray tomography. Barrande, Joachim (1872) Systême Silurien du centre de la Bohême. 1 ère Partie. Recherches paléontologiques, Supplement au Vol.I: Trilobites, Crustaces divers et Poissons, (Prague and Paris) Walcott, C.D. (1877) Note on the Eggs of the Trilobite. Annual Report of the New York State Museum of Natural History, 31:66-67 Raymond, P.E. (1931) Capsule-shaped "Eggs" In: Notes on invertebrate fossils, with descriptions of new species. Bulletin of the Museum of Comparative Zoology, 55:165-213 Zhang, X.G., & Pratt, B.R. (1994) Middle Cambrian arthropod embryos with blastomeres. Science, 266:637-639
  22. So, in my previous post, "Day One In The New Workshop", I had posted a pic of a plate that I had hoped would be an Eldredgeops rana mass mortality plate. I decided to do some work on it to see if there were any more than the two hiding in the matrix. Apparently the rest of the trilobites opted for the blue pill. Turns out there was just the two, one enrolled, one prone, and neither 100% complete. There was also a nice little piece of what would appear to be Streptelasma ungula coral. I have been asked several times to "blog" about my prep work as I go. In an attempt to abide, I am going to try and share as I go with this piece and others! So, after some initial prep, it looked a little better. Once I determined that these little fellas were not with friends, I used my Dremel engraver to rough out and shape the surrounding matrix. I did, at one point, accidentally pop the lentil-sized roller off of the matrix. Thankfully, I had the foresight to hold down the actual fossils with my thumb as I was working around them, thus denying him the opportunity to experience flight. In the above picture you can see that I started to smooth out the rough cuts surrounding them. I did this with my secret weapon, the tattoo machine with a 7RL needle. As you can see in the final picture from the day (above), I started to prep out the coral and continued to contour around the "bases" of the two bugs. You can also see that the roller has a squished head, and that there is a small piece missing from the right eye of the prone. (As I mentioned earlier, neither of the two were in perfect shape to begin with.) In my next post for this one, I will show the surrounding matrix contoured out and hopefully more detail on the buglets. This is proving to be a tricky prep as they are tiny! (See below) Next time, I will try to get more "step-by-step" pictures to walk through the entire process!
  23. Hey fellow members, I got my first trilobite today at my local fossil shop. I don't know the locality where it was found. Does anyone know what species it is? Thanks -Cameron
  24. While moving into my new workshop I came across some cool pieces from my collection that I'm not sure I had ever photographed. My camera flash is broken, so I just took these using a cell phone. There are a few oddities that I'm not sure of their IDs, and a few that are just cool pieces. Appears to be a partial Actinopteria decussata. Not a common find at the site. Looks like a nautiloid, perhaps a Orthoceras or Spyroceras, but has a really weird surface texture to it. Nice long section of crinoid stem. This was very tough to stabilize, it was practically jumping out of the matrix piece by piece. A big honkin' Eldredgeops rana that's partially enrolled. Still prepping him out. Unfortunately he's missing a chunk of the left librigina. You can also see the spines of a well-preserved Spinatrypa spinosa in the bottom of the frame. I don't know what this is. It's concave, and I think it's the interior of a Spyroceras, but I can't be sure it's such an odd segment to try and classify from.
  25. Hey, there, a while ago my dad bought a trilobite (flexicalymene?) from a trip, I recently found it in my pond and I washed away the algae and dirt and stuff, however the fossil (if real) seems really fragile, it broke into numerous pieces while cleaning. I noticed that there are two color layers in the cross section of the trilobite, and some of the pieces seem like they are just carved out of a rock, no bone structure or anything to separate itself from the rock. The only detail that is convincing me that this might be a real is that there are numerous little shell structures beneath the trilobite (see pictures). So please help me identify the type of trilobite and most importantly if it is real. Thanks in advance. (sorry for bad english) Sorry for tiny images, the forum won't let me upload more than 3 MB