Jump to content

Search the Community

Showing results for tags 'yorktown formation'.



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
  • Gallery
  • 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
  • Pennsylvania Perspectives
  • 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
  • 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
  • Recent Collecting Trips
  • retired blog
  • Stocksdale's Blog
  • andreas' Blog test
  • fossilman7's Blog
  • Hey Everyone :P
  • fossil maniac'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?
  • 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
  • A guide to calcanea and astragali
  • 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
  • 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

Calendars

  • Calendar

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.)

Found 25 results

  1. Globidens alabamaensis?

    While collecting at a location in SE Virginia which produces a mixture of material from the Eocene Nanjemoy Formation and late Miocene/early Pliocene Yorktown Formation, I was shocked to find what I believe to be a cretaceous Globidens sp. anterior tooth fragment. My only explanation for this would be that it must have been redeposited into the Eocene beds and finally exposed with rest of the material. The texture is classic Globidens. The only other species with a slightly similar texture found within these formations (though still markedly different), would be Squalodon sp., however if the tooth were more complete it would clearly prove to be hollow with a conical interior consistent with squamates like mosasaurs. The fragment is approximately 7/8" x 1/2". This is the first bit of possibly cretaceous material I have found from these exposures, so it would be quite interesting if the general consensus is a Globidens sp. Your thoughts would be much appreciated! Thanks, Ash
  2. Possible Mastodon Tooth Fragment

    Good afternoon, I went out to the beach by the old scout hut at Cherry Point and found several interesting items. I believe two of the pieces are fragments of a mastodon tooth. I will try to post as many pictures as possible. Thank you
  3. I haven’t been keeping any Ecphoras that I find because I have all I want but this one looked like it could be pretty big. Turned out not to be very big but big enough to be interesting. It was found in a river outcrop with a little bit exposed. Normally small ones can be easily cleaned with a toothbrush and soapy water but bigger ones tend to have cracks. This one had plenty of cracks and rotten spots that made it fragile. It had to be preserved with vinac. Here are some pics during prep.
  4. Posterior Megs?

    Hi all, the other day I went out hunting found some really cool stuff, which I'll post soon, but I find these 3 interesting teeth which I think are posterior megs, though I think one (smallest) is more likely than the other two. They were found in Havelock NC.
  5. Found this in a location known as yorktown - I know part of the formation nearby is rushmere member zone two, but I am not sure if the place I found this would also be considered as such but it was found among similar items, tube worms, ecphora quadristata, diadora and slipper shells. I've found a few pieces of this shell before but they have not preserved well so I'm very excited to finally have a whole specimen of this unique and beautiful shell and anticipate getting an exact ID on it! Is this a Margaritaria abrupta? Let me know if additional photos are needed to aid.
  6. Aurora NC bone to ID

    When I stopped by the Aurora Fossil Festival a few weeks ago I was able to spend 1/2 hr or so sieving at one of the piles that are brought in for the festival. The piles include Pungo River Marl (lower Miocene) and Yorktown Formation (lower Pliocene) as well as possible Chowan River Formation (late Pliocene) and James City Formation (Pleistocene) material. Besides an assortment of the usual small shark and ray teeth, I found the following bone. Any suggestions as to a possible ID would be appreciated. Don
  7. Tiniest Ecphora Ever

    Last week on a trip to the Tar River I brought home several decent sized Ecphora quadricostata along with an assortment of other gastropods and bivalves. This was on the same trip I found the Gannet ulna. While cleaning matrix from one of the larger ecphora's today, I found this teenie tiny ecphora quadricostata. It is 13.6 mm (.53 inch) long and 11.4 mm (.45 inch) wide. Here it is in a standard 4.35 inch by 3.35 inch riker mount.
  8. North Carolina Pliocene Bird Bone

    I found this bone today in Edgecombe County North Carolina on the Tar River, upper Yorktown Formation, Rushmere member. The area is well known for Chesapectens along with other bivalves and gastropods. I looked at the Smithsonian publication, Geology and Paleontology of the Lee Creek Mine, North Carolina, III. Miocene and Pliocene Birds from the Lee Creek Mine, North Carolina. Storrs L. Olson and Pamela C. Rasmussen. Issued May 11, 2001. After searching the many plates I found one that is a pretty good match. The proximal end of right ulna of Morus peninsularis. a Gannet. I am looking for your opinions on this. @Auspex It is plate 14 page 333. I would love to have this positively I.D.'d. It was found in the formation, partially exposed and 2 pieces. They fit together well. Overall length is 144.4 mm or 5.68 inch.
  9. Can anyone help I'd this partial gastropod? Found it in the pliocene Yorktown Formation. It appears to have been pretty big in life. Thanks!
  10. Miocene horse tooth?

    I found this in a river in Virginia -- miocene Yorktown Formation. Does this look like a miocene horse? Maybe it's a modern horse tooth that got washed into the river? Any help from the experts appreciated! Matt
  11. Possibly Astrangia sp a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Coral Specimen - possibly Astrangia sp.? SITE LOCATION: Yorktown formation Beaufort County, Aurora, North Carolina TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Unknown genus, possibly Astrangia sp. Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. The group includes the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of myriad genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in length. A set of tentacles surround a central mouth opening. An exoskeleton is excreted near the base. Over many generations, the colony thus creates a large skeleton that is characteristic of the species. Individual heads grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously over a period of one to several nights around a full moon. Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa
  12. Possibly Astrangia sp a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Coral Specimen - possibly Astrangia sp.? SITE LOCATION: Yorktown formation Beaufort County, Aurora, North Carolina TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Unknown genus, possibly Astrangia sp. Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. The group includes the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of myriad genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in length. A set of tentacles surround a central mouth opening. An exoskeleton is excreted near the base. Over many generations, the colony thus creates a large skeleton that is characteristic of the species. Individual heads grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously over a period of one to several nights around a full moon. Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa
  13. Turitella alticostata a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Turitella alticostata Gastropod SITE LOCATION: Yorktown Formation, Beaufort Co., North Carolina, USA TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Turritella is a genus of medium-sized sea snails with an operculum, marine gastropod mollusks in the family Turritellidae. They have tightly coiled shells, whose overall shape is basically that of an elongated cone. The name Turritella comes from the Latin word turritus meaning "turreted" or "towered" and the diminutive suffix -ella. Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Order: Sorbeoconcha Family: Turritellidae Genus: Turritella Species: †alticostata
  14. Turitella alticostata a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Turitella alticostata Gastropod SITE LOCATION: Yorktown Formation, Beaufort Co., North Carolina, USA TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Turritella is a genus of medium-sized sea snails with an operculum, marine gastropod mollusks in the family Turritellidae. They have tightly coiled shells, whose overall shape is basically that of an elongated cone. The name Turritella comes from the Latin word turritus meaning "turreted" or "towered" and the diminutive suffix -ella. Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Order: Sorbeoconcha Family: Turritellidae Genus: Turritella Species: †alticostata
  15. Ostrea compressirorostra a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Ostrea compressirorostra Bivalve SITE LOCATION: Yorktown Formation, Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. This genus is very ancient. It is known in the fossil records from the Permian to the Quaternary (age range: from 259 to 0.0 million years ago). Fossil shells of these molluscs can be found all over the world. Genus Ostrea includes about 150 extinct species. Ostrea compressirostra is a species of prehistoric saltwater oyster, a fossil that is found in the Eastern United States. Kingdom: Animalia Phylum: Mollusca Class: Bivalvia Order: Ostreoida Family: Ostreidae Genus: †Ostrea Species: †compressirorostra
  16. Ostrea compressirorostra a.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Ostrea compressirorostra Bivalve SITE LOCATION: Yorktown Formation, Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Pliocene age (5.333 million to 2.58 million years ago) Data: Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. This genus is very ancient. It is known in the fossil records from the Permian to the Quaternary (age range: from 259 to 0.0 million years ago). Fossil shells of these molluscs can be found all over the world. Genus Ostrea includes about 150 extinct species. Ostrea compressirostra is a species of prehistoric saltwater oyster, a fossil that is found in the Eastern United States. Kingdom: Animalia Phylum: Mollusca Class: Bivalvia Order: Ostreoida Family: Ostreidae Genus: †Ostrea Species: †compressirorostra
  17. Bird bone from Aurora, NC?

    I have been told this bone is avian, probably miocene but could be pliocene. The striations are perplexing to me. From Aurora, NC. Ruler scale is in cm. I'd like to know what family it may belong to if possible
  18. Concavus concavus

    Barnacles are very abundant at some exposures in North Carolina. So at these places( and this was one of them) it takes a unique specimen for me to pick it up. This one caught my eye. Rather large and complete, plus has a natural display "seat". C. concavus is kind of a catch all for many barnacles that are found in the Pliocene.
  19. Hey all, Our collections manager and I have had a pretty busy week, and finished the first phase of the installation of the "Cone Whale" - a baleen whale skeleton collected from the Lee Creek Mine by Lee Cone (President of the Special Friends of the Aurora Museum). The specimen is the most complete whale skeleton ever collected from the mine, and was hauled out a few bones at a time over a two week period in Spring 2007. It includes a partial disarticulated cranium with an earbone (petrosal/periotic), left and right mandibles, all cervical vertebrae, most of the thoracics, and possibly a couple of lumbar vertebrae - and about a dozen ribs. The skeleton also has numerous shark bite marks, which just yesterday we marked with a series of red triangular markers. The new exhibit features artwork by yours truly, shark-bitten ribs in a magnifying box, and in the future will also include a number of specimens that the "Cone Whale" was preserved with. The "Cone Whale" shares a number of features in common with rorquals (family Balaenopteridae - the pleat-throated whales, e.g. humpback, fin, blue, minke) and gray whales (family Eschrichtiidae). The two families are closely related, with gray whales possibly being included within the rorquals based on DNA. Fossils like this hold promise to shed light on the early diversification of this group. The "Cone Whale" is a new species and was not represented amongst the fossils described in the Whitmore and Kaltenbach chapter of the Lee Creek IV volume - I've only seen a couple of other earbones of this taxon, so it is safe to say that this is the rarest baleen whale from the mine (and hence, a very lucky find). Lee Cone graciously donated this specimen to our museum in October 2016 and we've been painstakingly caring for it, and attempting to further reassemble fragments of the specimen. Turns out, Lee was nearly exhaustive in his efforts, and we've only been able to match perhaps 10% of the isolated fragments. The entire skeleton is highly fractured because it went through a dragline and was dumped - yet all the bones stayed in approximate position. Many parts were found by bulk screening of sediment. Come see the "Cone Whale" at College of Charleston soon - it opens to the public today for the first time ever! "Like" our page on Facebook or follow us on twitter for more frequent museum news and updates! -Bobby Boessenecker, Ph.D. College of Charleston Charleston, SC
  20. is it a bone?

    So, I think this might be a bone. Any ideas?
  21. Fun stuff - Yorktown Formation - pliocene?

    Sharing for fun. Some of the fossils we've found in a large pit dug in Suffolk, VA where the sea level hasn't been in thousands, or maybe millions, of years. https://goo.gl/photos/6oDYj3mdYvjNvzRb6
  22. After the Flood

    I decided to check out a couple of Yorktown Formation outcrops along a river this weekend to see what damage the recent flood from Hurricane Matthew has done. These outcrops are nearly vertical walls with layers of fossil shells. One of the outcrops was rejuvenated by the floods and the other completely buried. This first photo shows the mudline in the trees where the flood waters reached. The second and third show the slumping of the outcrop that completely buried the fossils.
  23. Pterorytis umbrifer

    Varix ornamentation can vary significantly based upon environmental conditions. Compare this specimen from a fine grained sheltered habitat to that of MR 10239-1028 which lived in a high energy environment. Reference Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127.
  24. Nc Great Whites

    Here are a few shots of Great White shark teeth as found from a recent trip. The material has been moved by machinery. Also found on the trip was a lot of bony fish material which I didn't photograph. These are from the Pliocene Yorktown Formation. What I really enjoyed about these teeth is one tooth is the most pristine I've ever found and another is the most massive in terms of weight. It is 2.6 inches long.
  25. Parotodus Or Mako: You Make The Call

    I had offered this tooth for sale as a P. benedeni lower anterior but then a member PM'ed me that he thought it looked like a tooth he had considered a Parotodus but was later identified by others as a mako. I've had this tooth for years but I had to respect the comment especially since he's seen a lot of teeth too. I started PM'ing a few other members to get their opinions. I thought it was a lower anterior because the crown is so straight. It would have a noticeable curve to it if it was from another jaw position. The root seemed thick enough for Parotodus and the tooth seemed to have a substantial enough neck for that as well. I didn't think it could be a hastalis lower anterior because the crown looked too low relative to the size of the root and the root shouldn't be as thick. The crown is too thick to be a retroflexus and it doesn't have the "elevated platform" Kent pointed out in his 1993 book. The crown is too broad-based to be an oxyrinchus. One member noted that root symmetry, root and crown width, plus crown length and root length had to be considered. He also said to look at the shape of the crown. Starting from the root, it necks in, then slightly out, and then in to the tip. He said to compare these features in lower anterior makos and Parotodus. Another member ventured that it had an 80% chance of being a Parotodus and listed his reasons: 1. Vestigial cusplets are less likely to occur on a 2-inch plus mako. 2. I imagine this is a lower right anterior tooth (based on the angles the cusps make with the main crown), and as you said, this is too low of a crown for that type of tooth. 3. The seemingly squared-off distal root lobe seems to be artificial as it resulted from minor damage. 4. Crown widens where you would expect (roughly middle). That doesn't really occur on makos unless it is a retroflexus, which based on the root alone, it clearly is not. 5. Root proportions seem fairly obviously Parotodus (deep, pronounced "U," no real flat facets on the root. 6. The robustness you see in Parotodus becomes much more obvious in teeth well over 2 inches, not so much in smaller teeth. 7. Because this is an anterior tooth and it is very "upright," it eliminates the classic Parotodus "hook" characteristic as a help in identifying the tooth. Final comment: I think it's much more likely for it to be an "oddball" Parotodus. Another member allowed that it could a Parotodus but thought it looked a lot more like a lower mako. The blade and root has that look of a mako. It's a nice big tooth but I don't see it as a Parotodus, not after looking at all the ones I have. The root is not as robust as on Parotodus. It looks more like a Cosmopolitodus hastalis A1 or A2. I hope this helps some but remember it could be a Parotodus after all. I decided to repost photos of the tooth to open up a discussion about it. Looking at again and comparing it to a Sharktooth Hill Bonebed lower first lateral I have which is fortunately about the same size, I can see that the root isn't as robust. In basal view there doesn't seem to be a lingual protuberance that Parotodus should have on the tooth in question but it still looks quite massive from that angle. The basal root margin is U-shaped though the root lobes seem less symmetrical than they should be for Parotodus. Still, it does appear that the tooth may have suffered some mesial compression when it formed as there is a strange protrusion of root in the "saddle" of the root and a facet that seems to be evidence of something applying pressure to the mesial side. I've been staring at this tooth too long. Here are three angles:
×