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Showing results for tags 'miocene'.
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Hi Everyone! I went on a one man expedition to Matoaka Cabins last weekend, picked up some wonderful finds. but a couple pieces I discovered are puzzling me. I am all but certain they are bone. And I am also confident they are fossil based on the color, texture, and density. But Id like to know if there is any further identifying that can be done outside of them being bones? I admit its likely a bit of a long shot as they are isolated specimens, but any best guesses would be appreciated. My speculations are: long one is a cetacean rib segment. Small one is fragmentary fish vert. I can provide detailed photos of other angles if requested.
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For those who are not versed in Calcaneum, this thread may help. http://www.thefossilforum.com/index.php?/topic/107376-mammal-calcaneum/ It was a great day in Florida.. I was out fossil hunting, and this bone dropped in my sieve. The site I was hunting tends toward Middle Miocene, about 90% marine. It is rare to find Pleistocene material, but there is always a mixture possibility. Let's figure this one out together. Look at the fossil below, size is 3.6 x 1.6 inches (91.4 x 40.6 mm), look at the thread above. Tell me what you think.
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So the critters are a ways off, but here if the completed back, mid and foreground for a test painting of Miocene Nebraska. This is roughly .75m square. Final mural 3m high by 6m long. Critiques welcome. Specimen suggestions appreciated. Because my employer thinks I only sleep ten minutes per day apparently....
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Hello, I am curious about this piece of what i think may be a jaw fragment. Found on James River in Virginia within Yorktown Formation. There appears to be one intact tooth and a portion of an adjacent tooth that has broken, leaving a cavity. Measures approx 2 x 1.5 x 1 cm. (The background grid is in centimeters) Appreciate any/all feedback. Thanks!!
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From the album: Shark Fossil collection
Extinct Tiger Shark (Galeocerdo cuvier) teeth from the Portuguese Miocene© Ricardo S. Alves
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I think I saw this tooth form in an identification book at some point and laughed at it. It's such a weird tooth. However, I can't find the reference now. It's driving me crazy. Any ideas what this is? It is possible that the tooth was reworked from an earlier formation (Old Church or Piney Point). From the Calvert Formation, bed 3. The scale box=5mm. Lingual surface? Labial surface? @jcbshark @MarcoSr @Al Dente @Gizmo @fossilsonwheels
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Miocene Fossil Agatized/Silicified Coral from Indonesia
MarcoSr posted a topic in Member Collections
Below are pictures of Miocene agatized/silicified coral pieces from Indonesia. Unpolished white coral piece (1.3 kg 135mm x 105mm x 65mm) Unpolished yellow agatized coral piece (.5 kg 50mm x 80mm x 80mm ) 14 polished black coral pieces (largest: 342 grams 120mm x 50mm x 40mm Smallest: 70 grams 73mm x 40mm x 3to 17mm ) Note there is also white silicified coral and small amounts of red and yellow agatized coral mixed in. There is one close-up picture from each of the 14 pieces of coral. Black right next to white Some red and yellow mixed in Marco Sr.- 3 replies
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I was going through my collection and found this tooth in with my Carcharias (Sand Tiger) teeth from Bayfront Park, Calvert Cliffs (Miocene). It doesn't resemble the others and I wondered if it might be something else. It is 7/8 of an inch tall. Thanks.
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From the album: Shark Fossil collection
Extinct Tiger Shark (Galeocerdo aduncus) teeth from the Portuguese Miocene© Ricardo S. Alves
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CMM finds Physogaleus aduncus possible associated dentition
Miocene_Mason posted a topic in Fossil News
From the Calvert Marine Museum Fossil Club Facebook page, our shark people may enjoy this next twist in the debate: ”Associated shark teeth from the whale collected in 2008. During the excavation a number of teeth were uncovered around the ribs. All of these teeth are from a tiger shark. The upper and lower positions are a proposed possibility. However, those of you who follow the ever confusing world of shark tooth identification, you’ll notice the “upper” teeth are ones identified as Galeocerdo aduncus and the “lower” teeth are ones identified as Physogaleus contortus. The fact that there are near symmetrical proportions of teeth between the two tooth types/shaped lead me to consider the possibility that these are from a single individual rather than two different species or sharks.” *John Nance, CMM paleo collections manager adds: “I’ve been working on prepping the whale some more and uncovered an additional 10 teeth, culminating in this dentition. Since they weren’t articulated there was concern about making a definitive conclusion. Dr. Kent does discuss 3 morphotypes in his chapter on the tiger sharks.”- 3 replies
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This tooth was collected from one of the Monmouth County, NJ, mixed Miocene/Eocene sites. The curved shape makes me want this to be a Parotodus benedeni, but it could just be a weirdo Odontaspis, Carcharias, or one of the other more common types of sharks. Would love to hear what you all think.
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Two highly polished, end cut Stromatolite agate achats from the Mátra mountains, Gyöngyöstarján, Hungary from the Miocene, 20 million years ago that I recently purchased. These are the first Stromatolite fossils that I’ve added to my fossil collection. I’m posting a few pictures to show the incredible colors in these pieces. End Cut (1) ( 543grams 103mm by 102mm by 35mm) End Cut 2 (166grams 75mm by 45mm by 45mm) Marco Sr.
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From the album: Shark Fossil collection
I. paucus or I. hastalis? from the Portuguese Miocene-
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Short Icy Miocene Trip around St. Josef, Styria, Austria
FranzBernhard posted a topic in Fossil Hunting Trips
Icy? Well, compared to some areas in the US or Moscow, it had only a few degrees below zero (Celsius) last Sunday. The nights had about -10°C, the days about -2°C. This period lastet from last Friday to Monday. No snow at all and very, very dry air. The last two days we had about 0°C during the night and +10°C maximum during the day. Still very dry. So without any snow and clear, but "cold" weather, I checked out a few Miocene sites around St. Josef in western Styria, Austria. I have made a detailed report about the area more then a year ago here: Rocks and fossils were mostly firmly frozen to the ground, and in some places more than 10 cm long fibrous ice was growing from the ground, pushing up leaves, soil and in some places fossils. Sites looked mostly the same as during my last visit, except Höllerkogel-10. Here at Höllerkogel-10, the farmer had removed a little bit of material from the bank of the forestry road. The sites contains mainly Granulolabium snails, but also a variety of other molluscs (see topic above). A little bit surprising last Sunday were an echinoid mold and a leaf impression, both ready to be picked (see pics, fossils as found frozen to the ground ). Echinoids are known from this site, but I have not seen myself such a "big" leaf in this formation until know. First I thought that this leaf is a recent leaf, sticking to the rock. But it isn´t, its a fossil. The echinoids occur as molds in the upper part of the outcrop; the lower part contains quite well preserved shell fossils (gastropods and bivalves). Nearly everything was frozen to the ground, of course, and large blocks of fossiliferous sediment were frozen hard like concrete. Maybe I will visit the site again in the near future to pick through some of the fresh debris. The large blocks have probably disintegrated then. That´s all, thanks for looking! Franz Bernhard -
From the album: Pisces
13mm. wide Burdigalian Miocene Obere Meeresmolasse Formation Found in the Bodenseekreis-
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The species of the family Syngnathidae belong to the order Syngnathiformes. The name "Syngnathiformes" means "conjoined-jaws". Syngnathiformes is an order of ray-finned fishes that includes among others pipefishes and seahorses (Syngnathidae), razorfishes (Centriscidae), trumpetfishes (Aulostomidae), and cornetfishes (Fistulariidae). Fishes of this order have elongate, narrow, bodies surrounded by a series of bony rings, and small, tubular mouths. The tubular mouth shows that these members of the Syngnathiformes fed on small Crustaceans and such, much as their modern-day relatives, the Seahorses, and Pipefishes. The family Syngnathidae includes the pipefishes and seahorses as well as the leafy and weedy sea dragons. The species of the subfamily Syngnathinae (Pipefishes) have elongated, thin, snake-like bodies with a highly modified skeleton formed into armored plating. The head is elongate with a long and slender, tubular snout; the mouth is small and toothless. The dorsal fin is the main part of locomotion. They are very weak swimmers in open water, moving slowly by means of rapid movements of the dorsal fin. The ventral fins are constantly absent; other fins may or may not be developed. The species of the subfamily Syngnathinae are abundant on coasts of the tropical and temperate zones. Most species of pipefish are usually 35–40 cm in length and generally inhabit sheltered areas in coral reefs, seagrass beds, and sandy lagoons. References: H. E. Sauvage (1870) Synopsis des poissons tertiaires de Licata. Anales des Sciences Naturalles, Zoologie et Paleontologie 14:1-26. H. E. Sauvage (1873) Memoire sur la faune ichthyologigue de la periode Tertiare et plus specialement sur les poissons fossiles d'Oran et de Licata. Annales des Sciences Geologiques 4:1-272. C. Arambourg (1925) Revision des Poissons fossiles de Liata (Sicile). 14:39-132. J. Gaudant, J.-P. Caulet, I. Di Geronimo, A. Di Stefano, E. Fourtanier, M. Romero, and M.-T. Venec-Peyre (1996) Analyse séquentielle d'un nouveau gisement de poissons fossiles du Messinien marin diatomitique : Masseria il Salto près de Caltagirone (Province de Catane, Sicile). Géologie Méditerranéenne 23(2):117-153
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References: ARAMBOURG C. (1925) Révision des poissons fossiles de Licata (Sicile). Annales de Paléontologie, 14, 39-132. Landini W., Menesini E. (1984) Messinian marine fish communities of the Mediterranean Sea, Atti della Società Toscana di Scienze Naturali Serie A 91, 279-290 Woodward A. S. (1901) Catalogue of Fossil Fishes in the British Museum (Natural History), Part IV, 1-636.
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From the album: Shark Fossil collection
The colors of this Hemipristis serra tooth blow my mind-
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From the album: Shark Fossil collection
Beautiful Meg tooth with razor sharp serrations.- 2 comments
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I have been meaning to post my Calvert Cliffs mystery bones for awhile, and I keep finding more, so I finally took some pics to share. These are all Miocene finds collected on different trips over the last 12 months. I would be grateful for any help with ID.
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Hi All I found my largest shark tooth this past weekend here in New Zealand. I thought it was a Great White at first but a few people have thought it might be a transitional one. I was wondering if one of the shark tooth experts could have a look and let me know their thought Here is a bit of video of it as well: https://youtu.be/U-i8W2aOtLE?t=373 Thanks!
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I made it out to Matoaka Beach bright and early this morning on a day off. While I didn’t find a ton in the shark teeth department, I did nab my largest whale vert to date, a large ray dermal denticle, and some other nice Calvert Cliffs (Miocene) finds.
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Braved the cold, icy water for some digging in gravel and the hopes of something special. Miserable, cold and rainy, and I'm sore today from squatting. Not much quality wise in shark teeth, but good variety and quantity. And no evidence of recent competition from the local kids (and adults). All playing computer games? Was happy to find some pieces of cowshark teeth (always wonder if I break them digging through the gravel?), several sand tiger symphyseal/ parasymphyseal teeth, a few angel shark, and apparently some small mako. As usual lots of broken/split teeth. I stuck my arm in the ice water to feel around in the muck for something bigger, but nothing. Will try another, but needs to warm up/ dry up a bit.
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I have been fishing more than beach combing and the collecting has been poor (or maybe I'm going blind!) Lots more people this year hunting stuff with metal detecters, screens and better eyes. This would have been great for one trip, but accumulated over 8(?) trips. Hopefully with better winter storms more will turn up, and the cold will keep most people away.
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Found in north central Nebraska. Miocene. I’ve had this in my collection for a while, I don’t know why I overlooked getting it identified. Really a nice little specimen.