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Found 9 results

  1. Not many teeth but found a few cow shark (two only pieces), a few pretty small makos and a tiger shark tooth. Two pieces similar to others IDed as sturgeon plate pieces. Of the cow shark teeth, one is typical a few serrations; a second looks slightly different, stained but no serrations nor extra points (no apparent break); an upper tooth, a root with two points and two points with no roots. The little makos (less than an inch=2.5 cm each) are perfect (nice for jewelry?). Decent sized tiger. Only a few sand tiger and a bunch of triangular, gray shark teeth, Several drum teeth (but no angel teeth?) and a few skate teeth. An interesting coral(?) rock, not the typical Miocene star corral. Have to figure out how to post; copy paste didn't work.
  2. Shellseeker

    2023Feb3rd_AtlanticSturgeon

    From the album: FOTM - Bone Valley Formation, Florida, USA

    A lateral scute from Acipenser. These roundish scutes come from the sides of the Sturgeon
  3. Frank Eaton

    Scute, scale, or shell?

    This is a large scale or scute from the Yorktown formation in North Carolina. The pattern Is familiar as a reptile scute but the shape and thickness of the specimen isn’t present in any of my other scutes. It tapers to a diamond point and is less than a centimeter thick. The top face is flaky and covered in old barnacle holds. Another neat mystery I’m trying to clear up! (Edit: It’s a sturgeon scute) Frank
  4. butchndad

    What is this?

    Hello all. Found on the beach on the New Jersey side of New York bay. About 5.5 inches by 3 inches. Not like anything I’ve ever found. Likely not a fossil. Several people suggested it’s a sturgeon scute. Any help appreciated
  5. I've always loved living fossils, especially the fish. They are relics of an age long lost, offering us a glimpse of an incredible prehistoric world. Some are enigmas that survived countless extinction events since the Devonian. Others are majestic predators that swam alongside the dinosaurs. Let me present my collection of living fossil fishes from the Mesozoic and before. I will begin with one of the most famous of all - the coelacanth Coelacanth Species: Whiteia woodwardi Age: 252.3 - 251.3 mya | early Triassic Formation: Diego Basin; Middle Sakamena Formation Locality: Ambilobe, Madagascar First appearance: Eoachtinistia foreyi was found 360 million years ago in Australia Paddlefish Species: Protopsephurus liui Age: 125.5 - 112.5 mya | early Cretaceous Formation: Yixian Formation Locality: Lingyuan City, Liaoning First appearance: This is the oldest known species Sturgeon Species: Peipiaosteus fengningensis Age: 125.5 - 120 mya | early Cretaceous Formation: Jehol Biota Locality: Chifeng, Nei Mongol First appearance: Multiple species e.g. Yanosteus longidorsalis found since 125 million years ago in China Pipefish Species: Hipposygnathus sp. Age: 28.1 - 13.8 mya | Oliogocene - Miocene Formation: Monterey Formation Locality: Santa Ynez Valley, California, USA First appearance: Solenostomidae species were found 55.8 million years ago in Italy Note: Although most of this collection only includes fishes that existed since the Mesozoic or later, I made an exception for the pipefish as their order, syngnathiform, existed since the late Cretaceous
  6. Max-fossils

    Weird little fish (?) osteoderm

    Hey guys, Here's a small osteoderm I found recently on the Zandmotor in the Netherlands. I think it's possibly an osteoderm of a sturgeon or some other type of fish, but I'm really unsure. It kinda reminds me of a tiny alligator osteoderm... Anyone have an idea what it could be? It's probably from marine sediments of the Eem Formation, from the Eemian stage of the late Pleistocene (130'000 to 115'000 years old), but could easily be from the last Ice Age (around 40'000 years old), or older than the Eemian (anywhere in the Neogene is feasible actually, the Zandmotor has quite a bit of reworked fossils). Thanks in advance! Max
  7. oilshale

    Protopsephurus liui LU, 1994

    From the album: Vertebrates

    Protopsephurus liui LU, 1994 Early Cretaceous Linyuan Liaoning PRC Length is around 71cm
  8. The order of Acipenseriformes (Sturgeon-like fishes) both includes sturgeons (Acipenseridae) and paddlefish (Polyodontidae). At least three Sturgeon-like fishes (Acipenseriformes) can be found in the Jiufotang Formation (Jehol Group) and in the Yixian Formation in western Liaoning and northern Hebei Province China: Peipiaosteus pani Liu and Zhou, 1965, Protopsephurus liui Lu, 1994 and Yanosteus longidorsalis Jin, Tian, Yang & Deng, 1995. The Jiufotang Formation - where Peipiaosteus comes from - is dated to about 120.3+/-0.7 million years ago, which was during the Aptian age of the Cretaceous; the Yixian Formation - where Protopsephurus liui and this Y. longidorsalis can be found - is dated slightly older, around 125-121 million years ago (Barremian-early Aptian). Diagnosis from Hilton et al 2021, p. 2: "A †peipiaosteid (sensu Grande and Bemis, 1996) that differs from all other members of the family by possessing an extremely elongate dorsal fin. Other characters that, in combination, differentially diagnose †Yanosteus from other Acipenseriformes include short, stout pectoral fin spine, supraorbital sensory canal anterior to frontal surrounded by a series of small bony tubes, and the absence of epaxial caudal-fin rays." Line drawing from Jin et al. 1995: Identified by oilshale using Jin et al. 1995. References: Jin Fan, Tian Yanping, Yang Youshi, Deng Shaoying (1995) An early fossil sturgeon (Acipenseriformes, Peipiaosteidae) from Fengning of Hebei, China. Vertebrata PalAsiatica, Vol 33, Issue 1, pp. 1-16. Hilton, E., Grande, L., & Jin, F. (2021) Redescription of †Yanosteus longidorsalis Jin et al., (Chondrostei, Acipenseriformes, †Peipiaosteidae) from the Early Cretaceous of China. Journal of Paleontology, 95(1), 170-183. doi:10.1017/jpa.2020.80
  9. oilshale

    Peipiaosteus pani Liu and Zhou, 1965

    The order of Acipenseriformes (Sturgeon-like fishes) both includes sturgeons (Acipenseridae) and paddlefish (Polyodontidae). At least three Sturgeon-like fishes (Acipenseriformes) can be found in the Jiufotang Formation (Jehol Group) and in the Yixian Formation in western Liaoning and northern Hebei Province China: Peipiaosteus pani Liu and Zhou, 1965, Protopsephurus liui Lu, 1994 and Yanosteus longidorsalis Jin, Tian, Yang & Deng, 1995. The Jiufotang Formation - where this Peipiaosteus comes from - is dated to about 120.3+/-0.7 million years ago, which was during the Aptian age of the Cretaceous; the Yixian Formation - where P. liui and Y. longidorsalis can be found - is dated slightly older, around 125-121 million years ago (Barremian-early Aptian). Peipiaosteus pani, Liu and Zhou 1965, a relative of nowadays sturgeons, is from the Jiufotang Formation, Pani Lake, Liaoning. This sturgeon is characterized by a long fusiform trunk and a short dorsal fin. The origin of the dorsal fin is a little before that of the anal fin. The normal size of these specimens normally is around 15 to 30 cm – but I’ve seen a couple of fish exceeding 60cm. Line drawing from Grande et al. 2002, p. 218: References: Liu, H. & Zhou J. (1965): A new Sturgeon from the Upper Jurassic of Liaoning, North China. Vertebrata PalAsiatica Vol. 9, No. 3, 1965, p. 237 ff. Zhou, Z.(1992) Review on Peipiaosteus based on new materials of P. pani. Vertebrata PalAsiatica Vol 30, No. 2, pp 85-101. Grande, L., Jin, F., Yabumoto, Y. & Bemis, W. E. (2002) Protopsephurus liui, a well-preserved primitive paddlefish (Acipenseriformes: Polyodontidae) from the Lower Cretaceous of China, Journal of Vertebrate Paleontology, 22:2, 209-237, DOI: 10.1671/0272-4634(2002)022[0209:PLAWPP]2.0.CO;2.
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