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Found 137 results

  1. Help w/ ID new fossil finds!

    Hello! I'm a pretty novice fossil hunter, so I look for things that stand out! Recently I found these in a span of about two weeks, I haven't seen anything like them before. The small ones all have a flat/facet on the posterior side, same teardrop shape, and the larger ones look like " big ears" to me, lol. I thought maybe iron concecretions at first, but the small ones look different, in that they are not "round". Ammonites? Reminds me of some of the pics posted of plesiosaur fossils, I have more pics, but the files are too big to post all at one time - I would really appreciate any insight! Fossil pic 3.pdf
  2. Upper Cretaceous oddity

    While out in the Puerco, I smacked open a concretion to find an unfamiliar pattern. Any thoughts or ideas are greatly appreciated. The specimen is from the Upper Cretaceous (Turonian) Carlile Shale. It is layered and each layer has this pattern. I currently do not have a measurement but will do so. Thanks for taking a look.
  3. Hello forum members! With the new Coronavirus raging across the world, I thought it would be nice to start some kind of advent calendar, using my own Squalicorax collection. Everyday I will post one or multiple Squalicorax teeth from one location. Let's see what ends sooner, my collection or the virus outbreak. I will start with the oldest tooth from the Albian substage and end with the teeth from the uppermost substage; the Maastrichtian. The first one is the oldest and also one of the smallest teeth in my collection. Unfortunately it is so small that the photo's are not as sharp as I would have liked, but I think they are good enough. It is Squalicorax primaevus from the Middle Albian Argiles tégulines of Courcelles, Aube Department, France. See you guys tomorrow, Sander
  4. Nicaisolopha nicaisei (Coquand 1862)

    From the album Gastropods and Bivalves Worldwide

    9x8cm. Turonian, Late Cretaceous Cajamarca, Peru
  5. Polish coprolite: shark?

    Hello all This summer I found this coprolite in the Odra quarry in Poland. I found around 6 of these but nothing else. The other members of the group found shark teeth and some other stuff. Mosasaur remains are also found there, but extremely rare. I know it's hard to assign coprolites to kind of animal, but is this what a shark coprolite would look like? Around 1 cm.
  6. The Rio Puerco Valley

    The Rio Puerco Valley was my introduction to fossils...it immediately caught my attention...lit a match...became a place I am always eager to revisit...search...learn about... ...and in roaming it, have learned about myself. Many of my adventures in the Puerco are posted here, here...here and here...and here. From here on out, my excursions will be shared here. May you find happiness in your hunting. -P.
  7. This saturday the tides were ideal for a whole day of prospection at the foot of the chalk cliffs near Calais. We got there early in the morning when the water was going away from the cliffs. At the parking we were greeted by a veteran collector from this location, he took us along to the northern part of the site in search of big Turonian ammonites. A first for us since we've only collected more to the south in the cenomanian deposits. With his help we did find a couple of ammonites including a big specimen. around 1pm after lunch we parted ways and we went to the southern part of the site in search of cenomanian fossils, most of the beach was covered in sand, making it harder to find some decent boulders on the beach to break open. but the usual Schloenbachia and Mantelliceras ammonites did show up. we ended the day with dinner in a local tavern before heading back home whit a new load of fossils to clean and prepp. A Lewisceras Ammonite: A large Ammonite, I still have to prepp and Id it propperly: the extraction of the large ammonite: A nice find from Natalie: under the sand on the beach Albian deposits are present, but not visible, from time to time som fossils from those banks are washed out deeper in the sea and washed ashore. She found a nice Hoplites ammonite lying around on the beach: more pictures of the area: Schloenbachia varians: Mantelliceras specimens in situ: part of the fossils that made it back home: Pictures of prepped specimens will follow later
  8. I took this photo of an ammonite fossil from the Late Cretaceous (Turonian) Ladd Formation of the Santa Ana Mountains in Orange County on display at the fossil collection inside the Lewis Center for Applied Sciences at Orange Coast College earlier this week
  9. a christmas fossil trip

    Like last year Natalie and I spent 4 days on a fossil hunting trip on a few different locations on the northern coast of France. Each day a different location. The stormy weather conditions made the beaches realy favorable foor fossil hunting as lots of specimens could be found loose on the beaches. We started Saturday with Turonian sea urchins, sunday Kimmeridge clay and limestone, monday turonian ammonites and the last day mostly cenomanian fossils. Highlights of the trip were a few large ammonites ( Lewisceras and Acanthoceras ) and a rare tooth of a marine reptile from the Kimmeridge deposits.
  10. Holaster subglobosus (Leske 1778)

    From the album Echinodermata

    4x4.5x2.5cm. Turonian Late Cretaceous Paris Basin
  11. Всем привет! Помогите пожалуйста с определением.-Узбекистан, Туронский. Translation: Hello! Please help with ID. Found in Dzhirakuduk-Kyzylkum-Uzbekistan. Turon brandy.
  12. Choffaticeras segne (Solger 1903)

    From the album Cephalopods Worldwide

    11.5cm. Early Turonian Late Cretaceous From Asfla, Goulmima, Atlas mountains, Morocco You can see the siphuncle in the bottom photo.
  13. Ammonite hunt in Northern France

    We are back from a very windy fieldtrip to Cap blanc Nez in France. The wind covered a lot of the rocks with sand and sea foam ( https://en.wikipedia.org/wiki/Sea_foam ) which made fossil hunting rather difficult. We were helped by a local collector in the morning who guided us through the Turonian deposits of this site where we rarely colect, here we got 2 big ammonites. One of them was a Mamites nodosoides, this species as been on my wishlist for a while, so I am very happy with it In the afternoon we prospected the Cenomanian side. her we found the usual Mantelliceras and Scloenbachia ammonites. The prospecting site: ( we did see the coast of the UK on the other side of the channel ) Some of the ammonites we found: The Mammites: pictures of the prepped specimens will follow during the next week.
  14. ID for this shark

    Hi there! This is my first post at Fossil Forum, hope this information could help in getting some help to identify this fossil. It was found at a quarry in Vallecillo, Mexico (northeast part, less than 100 kms from Laredo, Texas). The fossils found here belong to the the Vallecillo member from the Agua Nueva formation, aparently from late Cenomanian to early Turonian. The full length including the separate vertebrae is aproximately 29 inches or 74 centimeters. The longest tooth is aproximately 1.4 centimeters long. I was only able to post a single picture, hope it helps.
  15. The Rio Puerco Valley was my introduction to fossils. For many years now, I have scoured its Late Cretaceous shales and sandstones in search of ammonites. Somewhere along the way, my fascination with the ornament grew into an investigation of its enviornment. Last week at the New Mexico Geologic Society's Spring meeting (program), I made my first venture into the world of paleontological science. With the help of Dr. Spencer Lucas of the New Mexico Museum of Natural History, I presented a poster/abstract (Foley & Lucas 2017.pdf) exhibiting my ideas. I received some criticism for incorporating ammonite ornament and caught some grief for including a labeled map...otherwise, this was an amazing learning experience and I am ready to move forward. Back to the rocks!...I have a paper to write. Blue Hill Shale: Spathites puercoensis: Prionocyclys hyatti: Coilopoceras springeri:
  16. Rudist ?

    Hi, a friend of mine told me he found some Placentyceras in a place where the geologic ages go from the Albian to the Turonian-Santonian, but most of the stratas of that place are Cenomanian. I believe this fossil is not an ammonite, but rather an Oyster or a rudist. I mostly think about Requienia or Toucasia. The geologic file mention the name of Toncasia bayleia. Do you know if Toncasia is a synonym of Toucasia and do you think i'm right thinking this is a rudist ? Lenght : 7 centimeters.
  17. Isastrea oblonga (Fleming 1827)

    From the album Slices

    6x3cm. Silicified coral from the area around Tisbury, Wiltshire, UK, known as the "Star Coral". Tithonian, Late Jurassic Portland Group.
  18. Prionocyclus macombi

    From the album Turonian Ammonites (NM, USA)

    Prionocyclus macombi (Meek, 1876) Juana Lopez member of the Mancos Shale Sandoval County, NM (scale in inches)

    © © M. Foley

  19. Kansas pliosaur skull

    Just got a new paper from ResearchGate It basically describes the dentition morphology of Megacephalosaurus eulerti, a pliosaur from the Turonian Carlile Shale of Kansas. The paper also looks at general aspects of M. eulerti cranial anatomy. The study is based on a beautiful skull housed at the Fort Hays Museum of Natural History (see below). Madzia, D., Sachs, S., & Lindgren, J. (2018). Morphological and phylogenetic aspects of the dentition of Megacephalosaurus eulerti, a pliosaurid from the Turonian of Kansas, USA, with remarks on the cranial anatomy of the taxon. Geological Magazine, 1-16. Abstract of the paper: Megacephalosaurus eulerti is a large macropredatory plesiosaur representing one of the last members of the diverse pliosaurid clade Brachaucheninae. The taxon was established upon a nearly complete skull including the mandible and fragments of the postcranial skeleton originating from the lower middle Turonian (Upper Cretaceous) of Kansas, USA. Owing to its age, reasonable completeness and its state of preservation, M. eulerti bears important anatomical details regarding the last brachauchenines. Here we assess the dentition of the taxon, compare the teeth to those of other thalassophonean pliosaurids and comment on the utility of these results for inferences of the phylogenetic relationships of the last brachauchenines. Additionally, we provide remarks on the cranial anatomy of M. eulerti, revise character scores of this taxon used in current phylogenetic studies and address the phylogenetic relationships within Brachaucheninae. Parsimony analyses, aimed to test different char- acter sampling and tree-search strategy, inferred only a single unambiguous synapomorphy uniting a clade formed by mid- to Late Cretaceous brachauchenines: presence of subcircular rather than subtrihedral/trihedral cross-sectional shape of the teeth. Still, the last brachauchenines (Brachauchenius and Megacephalosaurus) can be roughly characterized by a switch from anisodont to subisodont dentition and reduction of their tooth count. Nevertheless, the overall knowledge of the origin, phylogenetic relationships and distinguishability of brachauchenine pliosaurids remains poor and represents a subject for further extensive studies and modifications in taxon and character sampling. For those who want it, I can send it by email to them
  20. During april i and a friend had the oportunity to spend a few days hunting in cretaceous of Normandy, hunting for echinoids. Day one : We drove from brittany through Le Havre to Saint Jouin de Bruneval and Antifer Cape. (3 hours and a half) We let the car on the beach parking lot and hiked south on the peeble shore looking for fossils in the boulders on the beach. The cliff is cenomanian with a bit of albian at the bottom. You have to look carefully on rocks surface for the familliar spherical shape. I found about 20 urchins but thats about it. No shark tooth, just a poorly preserved ammonite (mantelliceras) and a few rhynchonellas At some point we noticed tide was coming back faster than expected, most likely because of the wind pushing the water back. We had to quicken the pace, and made our way through the slippery covered with algae rocks. We finally managed our way back to the car and took the road to Fécamp where we had booked an hotel for the next 2 nights. some finds of the day : Crassiholaster subglobosus : Crassiholaster subglobosus : Cyclothyris difformis : See the all hunt gallery here http://www.thefossilforum.com/index.php?/gallery/album/2849-haute-normandie-april-2018/ or on my flickr : https://flic.kr/s/aHsmiwWft6
  21. Micraster decipiens - 5

    From the album Haute normandie - April 2018

    Micraster decipiens : a cretaceous echinoid from Saint-Pierre en Port
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