Jump to content

Search the Community

Showing results for tags 'sharks'.

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. otodus, megalodon, shark tooth, miocene, bone valley formation, usa, florida.
  • Search By Author

Content Type


Forums

  • Fossil Discussion
    • Fossil ID
    • Fossil Hunting Trips
    • General Fossil Discussion
    • Partners in Paleontology - Member Contributions to Science
    • Fossil of the Month
    • Questions & Answers
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Is It Real? How to Recognize Fossil Fabrications
    • Fossil News
  • General Category
    • Rocks & Minerals
    • Geology

Categories

  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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
  • Terry Dactyll's Blog
  • Sir Knightia's Blog
  • MaHa's Blog
  • shakinchevy2008'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
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Lindsey's Blog
  • Back of Beyond
  • Ameenah's Blog
  • St. Johns River Shark Teeth/Florida
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • nicciann's Blog
  • 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
  • trilobite guy's Blog
  • barnes' Blog
  • xenacanthus' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • maybe a nest fossil?
  • farfarawy's Blog
  • Microfossil Mania!
  • blogs_blog_99
  • Southern Comfort
  • Emily's MotE Adventure
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • andreas' Blog test
  • fossilman7's Blog
  • Piranha Blog
  • xonenine's 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
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • 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
  • Hihimanu Hale
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • Stocksdale's Blog
  • PaleoWilliam's Blog
  • TyrannosaurusRex's Facts
  • The Community Post
  • The Paleo-Tourist
  • 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
  • A Novice Geologist
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101
  • Books I have enjoyed
  • Ladonia Texas Fossil Park
  • Trip Reports
  • Glendive Montana dinosaur bone Hell’s Creek
  • Test
  • Stratigraphic Succession of Chesapecten

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

  1. In the last couple of months my son and I have purchased some unprepped Lebanese fossil fishy's. There are four known species of guitarfish from the Lebanese provinces of Hakel and Hajula. Rhinobatos maronita is one of these; this species was fist described in 1866 by Pictet and Humbert. Some purty dang cool stuff but the guy we are buying from does not know how to wrap and send fossils over seas! Our last shipment came in many pieces! Not good. My son is working on him to make it right? Aside from that Im going to do what I can to fix things. First up is one side of what I think is a Guitar Fish, Rhinobatus? My son purchased this and this is the 'not so good side' with the other side being in better shape. Every so often I will be back and make more post of these realy neato fossil fishy's. @oilshale I dont know much about the types/specimens of these fish from Lebanon so if anyone wants to chime in and correct me, I would greatly appreciate it. Thank you RB The back half of this slap used to be in one piece!!!
  2. ThePhysicist

    Texas sharks

    From the album: Eagle Ford Group

    A handful of Cretaceous sharks (and fish vert) from an outing in the Kamp Ranch Limestone. Not particularly plentiful, but great preservation.
  3. ThePhysicist

    Digested Ptychodus?

    From the album: Eagle Ford Group

    This Ptychodus is missing its root and enamel, it's possible it was swallowed and digested by the animal?
  4. ThePhysicist

    Cretoxyrhina in situ

    From the album: Eagle Ford Group

    A razor-sharp Cretoxyrhina in plain sight.
  5. ThePhysicist

    Squalicorax in situ

    From the album: Eagle Ford Group

    A perfect Squalicorax, just lyin' there.
  6. ThePhysicist

    Exploded inoceramid

    From the album: Eagle Ford Group

    The remains of a large bivalve, which are quite common in the limestone.
  7. ThePhysicist

    Hash plates

    From the album: Eagle Ford Group

    In the laminated limestone occurred thin lenses of concentrated fossils. These don't look like much, but they're riddled with fish bones and other microfossils. I will likely sacrifice a couple of pieces to study the microfossil content.
  8. ThePhysicist

    Cretoxyrhina

    From the album: Eagle Ford Group

  9. Kolya

    Shark tooth for ID

    Hello! Help, please, to identify this tooth if possible. Height: ~ 5 mm. Age: most probably redeposits from Paleogene (Eocene: Ypr/Lut). Location: Western Ukraine Thanks in advance!
  10. Hi everyone, my name is Gavin and I’d like to say hi. I am a Geology major that likes to dabble in the paleo world. My beginnings in fossil hunting were as a little kit with my parents but by the time I was in middle school I didn’t do it very often but after I got into a geology class in college I regained my passion for hunting and I’ve been going strong since last fall. I look forward to see what every one has to post! Posted below are some of my best sharks teeth finds so far.
  11. Santa came early here in the north country. I've been after one of these for a while and I finally got one in the mail today. It's an early, transitional form, Palaeocarcharodon orientalis. Very coarse serrations near the root fading to almost smooth at the tip. One root tip was glued back on as these teeth are very prone to damage, but I can ignore that because it's almost 2 inches long, and they don't get much bigger than that.
  12. From the album: Cretaceous

    Scapanorhynchus texanus Goblin Shark Lower Lateral Tooth 1/2 inch across Upper Cretaceous Wenonah Formation Mattawan Group Ramanessin Brook Holmdel, N.J.
  13. Is there anyone else on here who collects large shark vertebra? I am mainly interested in the ones from the USA. Although I have a bunch of ones from Morocco and all of them, or at least, most of them are over 4 inches.
  14. Hey again everyone! I have a LOT of overdue trip reports, experiences, and finds I’d love to share. Ive been busy traveling around Texas exploring and having the best outdoor fun before I buckle down and start my academic journey. I want to start off saying Happy Holidays and Happy New Years to everyone here! I will never forget anyone who has been kind to helped me, especially this year, and I wish everyone only the best. I literally mean it! Some of you remembered me from years ago and scrambled to help me like a guardian angel- I’ll make you guys proud someday. These adventures are me trying and improving- handling life the BEST I can and spending time outdoors. This year for me has been… insane. Some of you already know this, if not long story short, only months ago I found out I was diagnosed with a serious and legitimate trauma-related amnesia where I lost most of my memory from a set of years which unfortunately included most paleontology related things I knew and did & any trace of my blossoming paleontology career when I was 17/18 years old when I even had a science job. During the pandemic I started remembering random terms & latin names, instinctively and luckily found my way back here but at that time only for collecting. It wasn’t until late summer this year I remembered who I actually was, what I wanted to DO and WHY I moved to Texas. The shock was… very intense. I have made phenomenal progress processing & accepting… having to relearn so much and move forward. The progress I’ve made in only months takes a lot of patients years to reach to my point of mental healing and I’m proud. I really believe if I keep at it I’ll catch up to my peers academically AND become closer to the person I used to be, become who I should have been by now. I’m even ready to relearn how to drive again so I can go on more adventures with other future paleontologists! This post is me trying my hardest and even seeing new things. My roommate is helping me study both for paleo-memory related things & for my placement test. Late in November I decided to join DPS! What better way to re-learn and meet people than to join a club. We went out on a private trip to the OK border and I instantly found a giant Eopachydiscus and a few other ammonites including multiple Mortoniceras & a baby Oxytropidoceras. Im actually working on a personal research paper for the giant ammonite- for FUN! I want to be able to publish this ammonite’s story someday- there appears to possibly be deep predatory teeth marks on one side of the “shell” and I want to know more about my prehistoric friend. That day was extremely important because I met Roger F. for the first time- the gentleman who co-wrote my TX Cretaceous shark book! He’s one of my favorite people now to talk to since we both love prehistoric sharks. I was SO flattered I was mentioned heavily in the December paleo newsletter for my recent finds- it’s reassurance that others see I already made significant progress! MORE PICTURES! In-situ too! Next adventure, I wanted to take a weekend off to explore the Red Beds of northwest Texas in early December! I went to the Seymour Whiteside museum and to try to find my own Permian freshwater shark Orthacanthus teeth! I came out here to also see an artist friend but I also accidentally met one of my female paleontologist heros, legendary Holly Simon, and she presented me with an Otodus meg. shark tooth- wished me luck on my paleontology career. I wasn’t prepared! While Mesozoic marine vertebrates are my career-goal focus I thought it would be fun to get my nails ruined in that red Permian soil and learn about other animals- especially Xenocanthids! The Diplocaulus on display were adorable. Ya’ll should definitely visit the Whiteside Museum of Natural history! MORE PICS Excited to get my own hands dirty and 3 hotel muffins later- we drove waaay out across Archer & Navarro formations to find a good public exposure. Some great nature shots! I found a giant centipede exo which I took home! I found an excellent exposure which we actually used a Permian lithography map of a formations in Utah (same age!) to help locate a layer where the teeth could be! (Successful btw!) I saw what I needed and scooped up some of this gravely stuff the rain washed out in a baggie for later. I surfaced picked a tiny microfossil fish tooth (?) and later when I got home- MY PRIZE! Tiny little Orthacanthus microfossil! When we were actually there we tried looking through the gunk and wet sieving it in the creek with no luck of a larger tooth. We were also very close to Wellington Formation in OK and another day took a trip out there. That drive was wild because we drove through a park for a picnic area that had like 15 wild turkeys appear out of nowhere running around and they were even falling out of the trees over us! It happened so fast… I couldn’t react to take a photo but I have an IG vid of it. We drove around EVERYWHERE in search of a famous pond- now super closed to the public btw. I eventually found out where it was and we got as close as we could in the “creek” off the roadside without actually potentially trespassing. I lucked and found the TINIEST gravely spot in the “creek”of what I was looking for, crossing my fingers, scooped a baggie for home. SUCCEESS AGAIN! Two more teeth and wow different color than my Texas one! I still have most of the bag to sift through! We drove alll that way. For micro freshwater shark teeth. xD MORE PICS TO BE CONTINUED- Reached photo MB limit
  15. Kolya

    Shark tooth for ID

    Hello! Help, please, to identify one old find tooth. Scale in mm, so height ~ 4 mm Western Ukraine. Age: Eocene. Thanks in advance!
  16. mpach033

    Help with shark tooth ID

    Here’s another one guys. Any idea what this one belongs to? It was also found in South Carolina.
  17. SawTooth

    Florida shark species

    Earlier today I thought that I should figure out what kinds of sharks teeth (that are possible to find in my area) I am missing in my collection, but to do that I need to figure out what there is to be missing. Does anyone have or know of a book, or just a general online list of every shark species that was, or still is in Florida, the books I have are either nonspecific, or not focused on Florida, I don't think I'm going to find a Greenland shark's tooth anywhere near here. Thanks!
  18. The Mississippi River has (in one form or another since the shrinking of the Western Interior Seaway) been flowing for 70 Million Years. https://www.smithsonianmag.com/science-nature/geological-history-mississippi-river-180975509/ This may be more of a current biological rather than paleontological question, but I'm curious about the origin of the current chondricthyan diversity in the Mississippi River? Now a fair amount of you might be confused when I say "Chondricthyan diversity in the Mississippi River", but this is truly a cool case of truth stranger than fiction. The most famous species in this case is the Bull Shark (Carcharhinus leucas), a requiem shark able to tolerate both fresh and saltwater that had been confirmed to be recorded as far up the Mississippi River as Alton Illinois in 1935. Image credit: https://www.thetelegraph.com/insider/article/Researchers-affirm-two-bull-shark-sightings-16308838.php Shell, R., & Gardner, N. (2021, July 1). Movement of the Bull Shark (carcharhinus leucas) in the upper Mississippi River Basin, North America. Marine and Fishery Sciences (MAFIS). Retrieved February 12, 2023, from https://ojs.inidep.edu.ar/index.php/mafis/article/view/181 Shell, Ryan & Gardner, Nicholas & Hrabik, Robert. (2022). Updates on putative bull shark (Carcharhinus leucas) occurrences in the upper Mississippi River Basin of North America. 36. 10.47193/mafis.3612023010101. https://www.researchgate.net/publication/362847015_Updates_on_putative_bull_shark_Carcharhinus_leucas_occurrences_in_the_upper_Mississippi_River_Basin_of_North_America But these are not the only cases of Chondricthyans found in the Mississippi River as shown by the reports and articles here: http://chnep.wateratlas.usf.edu/upload/documents/Essential_habitat_of.pdf (Specifically pg. 10) Rafinesque, C.S. (1820) Ichthyologia ohiensis, or Natural history of the fishes inhabiting the river Ohio and its tributary streams, preceded by a physical description of the Ohio and its branches. W.G. Hunt, Lexington, Kentucky, 90 pp. https://doi.org/10.5962/bhl.title.6892 Jordan, D.S. and Evermann, B.W. (1896). The fishes of North and Middle America. Bulletin of the US National Museum 47:1-1240. https://www.actionnews5.com/story/12943330/memphis-woman-photographs-stingray-in-mississippi-river/ Today, the Mississippi River is one of the most industrialized rivers in the world, with many locks and dams in places that previously allowed Chondricthyans to enter as upstream as Alton Illinois. This is a phenomena that unfortunately is still occurring both in the US and across the world today from places as far away and China and Brazil, Pakistan to Russia, and Cambodia and Australia, disrupting natural river flows that make regions more prone to sever flooding effects and causing a terrifying decline in large bodied freshwater fish that migrant frequently across a whole rivers lengths (and also contributing to the Human induced climate crisis as all the dead animals that pile up at the bottom of these dams produce high amounts of methane). This phenomenon is also something I must add we as a species needs to address urgently and decisively by switching more to more renewable power sources like solar, install fish ladders and workable passages for fish to go around the dams, or legally breach the dams safely whenever possible. But not to get off track here, I'm still curious about the paleontological date of chondricthyans from the Mississippi River. How many fossils of brackish water sharks and rays have been found in the areas of the Mississippi River, was there a historically larger or smaller amount of chondricthyans in the Mississippi during the Late Pleistocene-Early Holocene, and why isn't (at least that I know of) the chondricthyans diversity in the Mississippi River even historically been as high as places as the Amazon river in Brazil? What do you guys think?
  19. The Ctenacanthiforms sharks emerged in the Late Devonian period and were one of the earliest evolutionary radiations in the Chondrichthyan lineage. They were also an incredibly successful group, surviving up to at least the Early Cretaceous in deep waters of what is now Southern France and Austria. Image of Reconstructions by J.P. Hodnett of some Ctenacanthid Sharks (the three yellow sharks) from Permian formations at Yellowstone and Grand Teton National Parks, U.S. Image Source: https://www.nps.gov/articles/000/fossil-inventories-uncover-permian-sharks-in-western-national-parks.htm Unfortunately, this group is currently still relatively rarely studied by large sections of academia specializing in prehistoric sharks. This is the case even for species with preserved body fossils such as the magnificent, awe inspiring, and a personal favorite of mine, Saivodus striatus (Duffin and Glinter, 2006)! Duffin, C. J., & Ginter, M. (2006). Comments on the Selachian genus Cladodus Agassiz, 1843. Journal of Vertebrate Paleontology, 26(2), 253–266. https://doi.org/10.1671/0272-4634(2006)26[253:cotsgc]2.0.co;2 However, one incredible genus that deserves more study and academic along with public spotlight is Amelacanthus (Maisey, 1982)!! Maisey, J. G. (1982). Studies on the Paleozoic selachian genus Ctenacanthus Agassiz. No. 2, Bythiacanthus St. John and Worthen, Amelacanthus, new genus, Eunemacanthus St. John and Worthen, Sphenacanthus Agassiz, and Wodnika Münster. American Museum novitates; no. 2722. https://digitallibrary.amnh.org/handle/2246/3536
  20. Ciao a tutti! Potete aiutarmi per favore a identificare i denti di questo squalo? Provengono da Ypresian del bacino di Ouled Abdoun. Dimensione circa 1 cm. Hi everyone! Can you please help me identify this shark's teeth? They come from Ypresian in the Ouled Abdoun basin. Size about 1cm.
  21. Meganeura

    STH Micro Matrix

    So I was recently lucky enough to very generously receive some amazing and very very rich STH micro matrix! So here’s the finds, ID help courtesy of @digit and @MarcoSr’s website. Starting off with the shark teeth - alongside the micro mix I was given a very nice C. planus tooth. So here’s that alongside the 2 C. hastalis teeth I found: Bigger other shark teeth - Negaprion, Carcharhinus: Squatina - Angel Shark: Squalus - dog shark: Cretorhinus - Basking Shark: Galeorhinus - Tope Shark: Symphyseal tope shark: Triakis sp. - Hound Shark: Heterodontus sp. - Horn Shark: Posterior: Anterior: Dermal denticles: Vertebrae and fish spines: Fish teeth: Pharyngeal fish teeth: Now onto the Ray teeth - Dasyatis and Gymnura cause I can’t tell the difference - there were SO MANY OF THESE! Easily 300+. The nuptial/male/breeding teeth from Dasyatis and Gymnura: Mustelus sp (Smooth-hound shark) and Rhinobatus sp. (Guitarfish) cause I really can’t tell the difference either: Mobula sp: And finally, the 3 Raja (Skate) teeth I found: There were a couple other finds - couple triggerfish teeth, a barracuda tooth, etc as well! I went through the matrix twice and I know I’ve missed stuff too. Im surprised I didn’t find any shark denticles, but ah well. Also not included is all the Ray mouth plates and broken shark and Ray teeth I found! Tons of stuff that I’m very happy with! If anyone wants pictures of anything in particular do let me know!
×
×
  • Create New...