legoog Posted August 1, 2017 Share Posted August 1, 2017 Hello ! Please help to identify skull parts. It is were found at Bissekty formation, Uzbekistan All photos available at google drive https://drive.google.com/drive/folders/0B4kOegB1CWCJWnpsNnBRNjZXVDQ?usp=sharing Sorry but there is max size for photos Is there are crocodile skulls/jaw parts ? The main qustion Thank you for helping 1 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 Im not an expert on these things, but the circular teeth indicate psicivory, and I would geuss crocodile. But, I wouldn't rule out fish, maybe even plesiosaur. 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Pemphix Posted August 1, 2017 Share Posted August 1, 2017 Difficult to tell with just one photo from the side. But yes, it's part of the skull which you can simply see by the fact that this fossil shows alveoles and remains of teeth inside of them. So something like mandidble/maxilla... But to point out the genus is a little bit difficult without any info about strata or locality... Best regards, Pemphix Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 9 minutes ago, Pemphix said: But to point out the genus is a little bit difficult without any info about strata or locality... It says bissekty formation, Uzbekistan. heres Wikipedias article, which includes a faunal list: https://en.m.wikipedia.org/wiki/Bissekty_Formation “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
ynot Posted August 1, 2017 Share Posted August 1, 2017 2 hours ago, legoog said: Sorry but there is max size for photos You can post more pictures in a "reply" to the thread. Also use the refresh if You have problems loading pictures. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 1 hour ago, ynot said: You can post more pictures in a "reply" to the thread. Also use the refresh if You have problems loading pictures. JAW №1 1 Link to comment Share on other sites More sharing options...
ynot Posted August 1, 2017 Share Posted August 1, 2017 Nice pieces! Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 26 minutes ago, ynot said: You can post more pictures in a "reply" to the thread. Also use the refresh if You have problems loading pictures. Sorry but i can't upload more Who can please look at google drive https://drive.google.com/drive/folders/0B4kOegB1CWCJWnpsNnBRNjZXVDQ?usp=sharing Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 I'd say odd are it's kansajsuchus or zholsuchus. Congrats on the find! 1 minute ago, legoog said: Sorry but i can't upload more Who can please look at google drive https://drive.google.com/drive/folders/0B4kOegB1CWCJWnpsNnBRNjZXVDQ?usp=sharing You would have to refresh again for more. 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 JAW №2 1 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 There is not many bones of crocodilians from the bissekty formation, so genuses are a little murky. It might be good to ask a museum curator or university professor to examine it, he/she may be able to give a more confidant ID. Who knows? Maybe it will turn out to warrant its own genus or species! 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 Refresh is help) Thanks! Thats all parts that i need to help identify JAW №3 1 Link to comment Share on other sites More sharing options...
ynot Posted August 1, 2017 Share Posted August 1, 2017 Could some of these be fish? Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 14 minutes ago, ynot said: Could some of these be fish? may be thi article wold be helpful: https://www.researchgate.net/publication/295113675_Therizinosauroidea_Dinosauria_Theropoda_from_the_Upper_Cretaceous_of_Uzbekistan and old topic Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 6 minutes ago, legoog said: may be thi article wold be helpful: https://www.researchgate.net/publication/295113675_Therizinosauroidea_Dinosauria_Theropoda_from_the_Upper_Cretaceous_of_Uzbekistan and old topic I do not believe these to be therizinosaurs if this is what you are suggesting. They do not have circular teeth, but teeth that are more akin to that of a hadrosaur or a horse, as they are herbivores. The more derived ones have beaks and several layers of teeth, a bit like a mammoth. These appear to be piscivore, with circular teeth. Predatory fish, crocodilamorphs, some large amphibians, spinosaurs, large aquatic reptiles, and pterosaurs are all known to have these. Because of the little pits I would guess croc on these. Again, a true professional with a examination may be able to confirm (or deny) this. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 Btw these pits are electrosensory organs, similar to the ampullae of Lorenzini in sharks, or lateral lines in other vertabrates. I'm not sure what the technical name is for them. 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 Found it! Domed pressure receptors (DPRs) are the crocodilian equivalent of lateral lines (although I don't believe they are homologous, maybe someone else can confirm or deny) “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 7 minutes ago, WhodamanHD said: Found it! Domed pressure receptors (DPRs) are the crocodilian equivalent of lateral lines (although I don't believe they are homologous, maybe someone else can confirm or deny) This is about black one? JAW №2 ? Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 1 minute ago, legoog said: This is about black one? JAW №2 ? All the ones you've posted here have evidence of this. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
legoog Posted August 1, 2017 Author Share Posted August 1, 2017 5 minutes ago, WhodamanHD said: All the ones you've posted here have evidence of this. Dal Sasso C., Maganuco S. & Cioffi A., 2009. A neurovascular cavity within the snout of the predatory dinosaur Spinosaurus. First International Congress on North African Vertebrate Palaeontology, 25-27 May 2009 Marrakech (Morocco), 22-23.In 2005, Dal Sasso et al. described an almost complete snout of the unusual theropod Spinosaurus, from the Late Cretaceous of Morocco. Siemens CAT scan analysis, performed recently on the same specimen at the Ospedale Maggiore di Milano, reveals that the numerous foramina located on the outer wall of the rostrum communicate with a common internal cavity, deeply encased medially within the premaxillae, which is unique among theropod dinosaurs. The extreme retraction of the external nares in Spinosaurus permits to exclude any respiratory/olfactory function of this cavity, which in turn has a neurovascular nature. The cavity flows into two paired neurovascular passages, going through the entire snout and meeting caudally at level of the fifth maxillary tooth. This suggests that a rostral extension of the trigeminal nerve innervated the cavity.Soares (2002) demonstrated that the foramina on the facial bones of living and extinct semi-aquatic crocodilians house dome pressure receptors, innervated by the trigeminal nerve, that are useful to hunt even in darkness, detecting prey-made pressure waves associated with disruptions to the air-water interface. According to Taquet (1984) and Holtz (2003), spinosaurids might have hunted in riparian habitats in a manner similar to herons. As for Spinosaurus, we postulate the presence of croc-like pressure receptors, that might have given its mouth, when positioned on the air-water interface, an unexpected tactile function, useful to catch swimming preys without relying on sight. 1 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 5 minutes ago, legoog said: Dal Sasso C., Maganuco S. & Cioffi A., 2009. A neurovascular cavity within the snout of the predatory dinosaur Spinosaurus. First International Congress on North African Vertebrate Palaeontology, 25-27 May 2009 Marrakech (Morocco), 22-23.In 2005, Dal Sasso et al. described an almost complete snout of the unusual theropod Spinosaurus, from the Late Cretaceous of Morocco. Siemens CAT scan analysis, performed recently on the same specimen at the Ospedale Maggiore di Milano, reveals that the numerous foramina located on the outer wall of the rostrum communicate with a common internal cavity, deeply encased medially within the premaxillae, which is unique among theropod dinosaurs. The extreme retraction of the external nares in Spinosaurus permits to exclude any respiratory/olfactory function of this cavity, which in turn has a neurovascular nature. The cavity flows into two paired neurovascular passages, going through the entire snout and meeting caudally at level of the fifth maxillary tooth. This suggests that a rostral extension of the trigeminal nerve innervated the cavity.Soares (2002) demonstrated that the foramina on the facial bones of living and extinct semi-aquatic crocodilians house dome pressure receptors, innervated by the trigeminal nerve, that are useful to hunt even in darkness, detecting prey-made pressure waves associated with disruptions to the air-water interface. According to Taquet (1984) and Holtz (2003), spinosaurids might have hunted in riparian habitats in a manner similar to herons. As for Spinosaurus, we postulate the presence of croc-like pressure receptors, that might have given its mouth, when positioned on the air-water interface, an unexpected tactile function, useful to catch swimming preys without relying on sight. Yes, spinosaurids have evolved convergently with crocodiles. No spinosaurids are described from the bissekty formation, but one Chinese spinosaurid is late Cretaceous, so it is a possibility. I just like to stick with described species. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 1, 2017 Share Posted August 1, 2017 Wikipedia: "They persisted at least into the Late Cretaceous, as shown by a single baryonychine tooth found from the mid-Santonian, in the Majiacun Formation of Henan, China" source:Hone, Dave, Xing Xu, Deyou Wang, and Vertebrata Palasiatica. 2010. “A Probable Baryonychine (Theropoda: Spinosauridae) Tooth from the Upper Cretaceous of Henan Province, China Available on research gate. "sinopliosaurus" fusuiensis Is known from China's early Cretaceous, so I assume it and the baryonchid are related, connect the dots and spinosaurs should have been in Asia at that period (although Uzbekistan is a ways from east? china as you probably know) 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
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