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Taxonomy from Skrzycka, 2014. Coccolepis aniscowitchi Gorizdro-Kulczycka 1926 has been ascribed to the genus Morrolepis, including the junior synonyms Coccolepis socialis, Coccolepis cockerelli and Coccolepis martynovi (Skrzycka, 2014). Emended diagnosis for M. aniscowitchi from Skrzycka 2014, p.15 “Morrolepis having parietal with a slender anterior part extending for two-thirds of its length, with a prolonged antero-medial corner. Amioid scales sensu Schultze (1996) with denticles on posterior margin. Lateral line scales with serration on posterior edge. Maxilla with a prominent postero-ventral corner. Small and irregularly spaced teeth, some minute.” Line drawing from Skrzycka, 2014 p. 20: References: Gorizdro-Kulczycka, F. (1926): Fishes of the Karatau shales. Izvestia Sredne-azjatskogo Komiteta 1, 184–192. [in Russian] Skrzycka, Roksana (2014): Revision of two relic actinopterygians from the Middle or Upper Jurassic Karabastau Formation, Karatau Range, Kazakhstan, Alcheringa: An Australasian Journal of Palaeontology, DOI: 10.1080/03115518.2014.880267
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Pteroniscus turkestanensis Gorizdro-Kulzycka 1926
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Pteroniscus turkestanensis Gorizdro-Kulzycka 1926 Upper Jurassic Karatau Kazakhstan -
From the album: Sharks
An early Lamnid (family that includes the modern great white and mako sharks) from Central Kazakhstan. Some consider this genus to be ancestral to Carcharodon or both Carcharodon and Isurus. The latter is a tempting hypothesis since molecular clock studies place the last common ancestor of the great white and makos in this time.-
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From the album: Sharks
An Eocene Mackerel shark closely related to the mako and white sharks. It may have evolved from I. inflata.-
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From the album: Sharks
Eocene Threshers from Kazakhstan - an early appearance of the genus. -
Jaekelotodus trigonalis ? from Kazakhstan, Mangyshlak,
Brett Breakin' Rocks posted a topic in Fossil ID
Hi There, I just wanted to confirm that I think (?) these are examples of the large Sand Tiger shark from the Chattian. Jaekelotodus trigonalis ? ... This time period is not one I'm yet familiar with. Though, it is in a similar area to where the O. auriculatus I just received was found. Mangystau (Mangyshlak), Kazakhstan The preservation in this area is poor but the teeth are much larger. You can see the cusps have been worn down/away @Al Dente Cheers, Brett- 8 replies
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Thunnus sp. - Tuna Vertebrae from Kazakhstan
Brett Breakin' Rocks posted a topic in Fossil Preparation
Hi There, I've nibbled at the edges of fossil prep for several years but I'm finally getting settled and have some spare time. Most of my finds originally were from Georgia and South Carolina and rarely needed any preparation beyond gentle cleaning. My mailbox finds from Kazakhstan however are caked in Kansas-esque soft silt/clay/chalky matrix, so I attempted to clean one of my larger parcels from the Eocene using a pin vice and eventually a Dremel tool and various brushes. The bone is very hard and well mineralized and is only brittle in some small isolated spots. The matrix gets much harder the deeper you get, but still peels away like soft dirt under the spinning Dremel wheel. I wish I had an air abrasive unit to remove more of the chalky matrix, but I'm getting close to the end using the tools I have. I'll probably build a stand for it to get it up off of the ground. I suspect it is in the Tuna family since we see very similar morphology with Thunnus sp. fish verts from South Carolina. Other fossils found in this area of Kazakhstan are swordfish rostrums, O. auriculatus or something along those lines, and Mackerel fish fossils. Cheers, Brett For Reference: Thunnus sp. South Carolina - Chandler Bridge fm.- 4 replies
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Shark and ray teeth from Tushbair, Mangyshlak, Kazakhstan
almach posted a topic in General Fossil Discussion
Five photos of teeth from Tushbair, Kazakhstan, middle Eocene. 1. Usakias wardi 2. Notorhynchus kempi 3. Alopias hermani 4. Isurolamna inflata 5. Burnhamia woodwardi- 15 replies
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Hi guys, I wondered if anyone knew the species I assume they are from the mangyshlack peninsula 1. 2. on the right could be isurolamna inflata?
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From the album: Cretaceous Shark Teeth
Albian age Protolamna cappettai from Kolbay, Kazakhstan-
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From the album: Cretaceous Shark Teeth
Albian age Protolamna cappettai from Kolbay, Kazakhstan-
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From the album: Cenozoic Sharks
A transitional Otodus from Aktulagay, Kazakhstan.-
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From the album: Cenozoic Sharks
A transitional Otodus from Aktulagay, Kazakhstan.-
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From the album: Cenozoic Sharks
This tooth shares characteristics of Otodus mugodzharicus, but there's a twist: it was found in the locality of Tushbair that produces teeth dating back to the lower Bartonian; much younger than when Otodus mugodzharicus would have swam the Earth's oceans. Possibly a megalolamna ancestor?-
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From the album: Cenozoic Sharks
This tooth shares characteristics of Otodus mugodzharicus, but there's a twist: it was found in the locality of Tushbair that produces teeth dating back to the lower Bartonian; much younger than when Otodus mugodzharicus would have swam the Earth's oceans. Possibly a megalolamna ancestor?-
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Your saying did I read the Topic correctly? Uzbekistan? Where is that? Is that a country? Dinosaurs were there? Well yes to all those questions. First: where is it? well its in Central Asia next to Turkmenistan, Tajikistan and Kyrgyzstan. I'm sure that clarifies the locality In case your still scratching your head here is a map of the region On the map all of the Dinosaurs in this post come from the Kyzyl Kum Desert. I highlighted the area on the map with two red lines. The area is quite difficult to collect but if you dare quite productive for Dinosaur fossils and meteorites. Here are a few pictures of the area. No its not me in the pictures I'm not that crazy. The Dinosaurs from this area are poorly understood but there has been some study done in Russia. An excellent paper of this area is: Dinosaurs of Northern Eurasia: New Data About Assemblages, Ecology and Paleobiogeography by L Nessov published in 1995 and then translated into English. Unfortunately I cannot find the paper with the plate so no images. Specifics: Age: Cenomanian - Turonian (94.3-89.3mya) Bissekty Formation in the Kyzyl Kum Desert. Navoi Region My collection will begin with a number of Therizinosaurus hand claws. Most of you may not be familiar with this dinosaur. Its one of the most interesting ones ever to exist and paleontologists are still trying to understand it.. It begins its existence in the early cretaceous as a meat eating predator about 4 meters long and ends its reign at the end of the cretaceous as a giant 10 meter long herbivore with gigantic meter long claws on their hands. Quite a transformation, wish I had some of those claws. Great reference : Therizinosaur : mystery of the Sickle-claw dinosaur by the Museum in Northern Arizona. Only $10 The first group of pictures all all Therizinosaur hand claws. more to follow:
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This fish was first described under the name Oxygnathus turkestanensis by Gorizdro-Kulczycka, pp. 185–187. Emended diagnosis from Skrzycka 2014, p. 4: "Palaeoniscoid fish with large preopercle with horizontal arm almost as broad as deep. Some pectoral lepidotricha serrated posteriorly. Number of lepidotrichia large, exceeding 20. Pelvic fin, dorsal fin and anal fin all broad based. Fulcral scales absent from base of pelvic fin; single fulcra present in front of anal fin; few fulcra in front of dorsal fin, and there are few ventral caudal fulcra. Scales along lateral line numerous (exceeding 50) up to the base of caudal fin; more than 10 scale rows above lateral line scale row below dorsal fin base, and similar or higher number of scale rows below lateral line scale row above pelvic fin base." Line drawing by Skrzycka 2014, p. 10 (Scale bar = 10 mm): References: Roksana Skrzycka (2014): Revision of two relic actinopterygians from the Middle or Upper Jurassic Karabastau Formation, Karatau Range, Kazakhstan, Alcheringa: An Australasian Journal of Palaeontology, DOI: 10.1080/03115518.2014.880267
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- pteroniscus
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