Troodon Posted February 19, 2020 Share Posted February 19, 2020 Wow three more Pterosaurs from the Kem Kem and all toothed one premaxilla is similar to the English ornithocheirid Ornithocheirus simus. Currently identified as Ornithocheirus cf simus. The other a premaxilla is referred to Coloborhynchus, bearing similarities to C. clavirostris from the Hastings Group of southern England, and C. fluviferox from the Kem Kem beds. Identified as Coloborhynchus sp. A. A mandibular symphysis closely resembles that of Anhanguera piscator from the Romualdo Member of the Santana Formation of Brazil. Identified as Anhanguera cf piscator In total, the Kem Kem pterosaur fauna includes at least nine species, of which three are ornithocheirids. Paywalled but check out the outline to see images of the jaw sections https://www.sciencedirect.com/science/article/pii/S0195667119303258 13 Link to comment Share on other sites More sharing options...
The Amateur Paleontologist Posted February 19, 2020 Share Posted February 19, 2020 Diversity of Kem Kem pterosaurs seems to be going up quite a bit lately 1 Opalised fossils are the best: a wonderful mix between paleontology and mineralogy! Q. Where do dinosaurs study? A. At Khaan Academy!... My ResearchGate profile Link to comment Share on other sites More sharing options...
Troodon Posted February 19, 2020 Author Share Posted February 19, 2020 52 minutes ago, The Amateur Paleontologist said: Diversity of Kem Kem pterosaurs seems to be going up quite a bit lately Well is it or are we looking at sexual dimorphism or ontogenetic changes. Most of these new pterosaurs are described with only a few fragments being found. 4 Link to comment Share on other sites More sharing options...
msantix Posted February 20, 2020 Share Posted February 20, 2020 Wow! before 2010 there was only one officially described Pterosaur from the Kem Kem (Siroccopteryx, although researchers did know there were other taxon) and in the last 10 years there have been 7 new described species from the Kem Kem. Alanqa was first described in 2010 and then it took about 7 or 8 years for the next Pterosaur to be described (Xericeps). So basically up to six new Pterosaur species have been officially described in the last couple of years. Not to mention there is still the Tapejarid to be officially described so it is sort of the golden age of Kem Kem Pterosaur discoveries! Although i do personally leave a question mark on these new Pterosaur like Troodon said, the descriptions are based on fragmented remains so it may be that one of these Pterosaur remains might belong to Siroccopteryx instead of a new species, but at this point it could just simply be wait and see. Thanks Troodon for the link! 1 Link to comment Share on other sites More sharing options...
Scylla Posted March 25, 2020 Share Posted March 25, 2020 Three new Kem Kem Pterosaur species described! https://m.phys.org/news/2020-03-fossil-clues-reptiles-sahara-million.html 1 Link to comment Share on other sites More sharing options...
TyBoy Posted March 25, 2020 Share Posted March 25, 2020 Think this was already reported in Feb 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 26, 2020 Share Posted March 26, 2020 Topics Merged. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
DD1991 Posted March 28, 2020 Share Posted March 28, 2020 On 2/19/2020 at 9:01 PM, msantix said: Wow! before 2010 there was only one officially described Pterosaur from the Kem Kem (Siroccopteryx, although researchers did know there were other taxon) and in the last 10 years there have been 7 new described species from the Kem Kem. Alanqa was first described in 2010 and then it took about 7 or 8 years for the next Pterosaur to be described (Xericeps). So basically up to six new Pterosaur species have been officially described in the last couple of years. Not to mention there is still the Tapejarid to be officially described so it is sort of the golden age of Kem Kem Pterosaur discoveries! Although i do personally leave a question mark on these new Pterosaur like Troodon said, the descriptions are based on fragmented remains so it may be that one of these Pterosaur remains might belong to Siroccopteryx instead of a new species, but at this point it could just simply be wait and see. Thanks Troodon for the link! The holotype on which Coloborhynchus fluviferox is based is a tiny fragment of snout, so it's possible it could either come from a region of the snout for which the Siroccopteryx holotype is unknown, in which case fluviferox is a synonym of Siroccopteryx, or be a member of Hamipteridae. However, Xericeps and Apatorhamphus are azhdarchoids like Alanqa, not ornithocheiroids, and the Kem Kem specimen assigned to Tapejaridae by Wellnhofer and Buffetaut (1999) has been christened Afrotapejara zouhri by Martill et al. (2020). Also bear in mind the Martill et al. don't follow Rodrigues and Kellner (2013) in rejecting referral of Pterodactylus capito (including Ornithocheirus reedi) to Coloborhynchus due to its much younger age. Averianov (2020) referred the European pterosaur species Lonchodraco machaerorhynchus (with which he synonymized L. microdon) to the Asian genus Ikrandraco, so it's possible that capito could be related to Hamipterus and Iberodactylus rather than Coloborhynchus. Averianov, A.O. (2020). Taxonomy of the Lonchodectidae (Pterosauria, Pterodactyloidea). Proceedings of the Zoological Institute RAS. 324 (1): 41–55. doi:10.31610/trudyzin/2020.324.1.41. David M. Martill; Roy Smith; David M. Unwin; Alexander Kao; James McPhee; Nizar Ibrahim (2020). A new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco. Cretaceous Research in press: Article 104424. doi:10.1016/j.cretres.2020.104424. Peter Wellnhofer; Eric Buffetaut (1999). Pterosaur remains from the Cretaceous of Morocco. Paläontologische Zeitschrift 73 (1–2): 133–142. doi:10.1007/BF02987987. 1 Link to comment Share on other sites More sharing options...
msantix Posted March 29, 2020 Share Posted March 29, 2020 12 hours ago, DD1991 said: The holotype on which Coloborhynchus fluviferox is based is a tiny fragment of snout, so it's possible it could either come from a region of the snout for which the Siroccopteryx holotype is unknown, in which case fluviferox is a synonym of Siroccopteryx, or be a member of Hamipteridae. However, Xericeps and Apatorhamphus are azhdarchoids like Alanqa, not ornithocheiroids, and the Kem Kem specimen assigned to Tapejaridae by Wellnhofer and Buffetaut (1999) has been christened Afrotapejara zouhri by Martill et al. (2020). Also bear in mind the Martill et al. don't follow Rodrigues and Kellner (2013) in rejecting referral of Pterodactylus capito (including Ornithocheirus reedi) to Coloborhynchus due to its much younger age. Averianov (2020) referred the European pterosaur species Lonchodraco machaerorhynchus (with which he synonymized L. microdon) to the Asian genus Ikrandraco, so it's possible that capito could be related to Hamipterus and Iberodactylus rather than Coloborhynchus. Averianov, A.O. (2020). Taxonomy of the Lonchodectidae (Pterosauria, Pterodactyloidea). Proceedings of the Zoological Institute RAS. 324 (1): 41–55. doi:10.31610/trudyzin/2020.324.1.41. David M. Martill; Roy Smith; David M. Unwin; Alexander Kao; James McPhee; Nizar Ibrahim (2020). A new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco. Cretaceous Research in press: Article 104424. doi:10.1016/j.cretres.2020.104424. Peter Wellnhofer; Eric Buffetaut (1999). Pterosaur remains from the Cretaceous of Morocco. Paläontologische Zeitschrift 73 (1–2): 133–142. doi:10.1007/BF02987987. Thanks, I was originally referring to leaving a question mark on the three new Ornithocheiroids that were in the recent paper as i haven't read it and from what i gather they are based on small jaw fragments. Hopefully new discoveries in the future would help clear up the validity of the Ornithocheroids in the Kem Kem. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted March 29, 2020 Share Posted March 29, 2020 Here is the take from Morocco World News : https://www.moroccoworldnews.com/2020/03/297926/scientists-discover-new-flying-reptile-fossils-in-moroccan-sahara/ 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Scylla Posted April 3, 2020 Share Posted April 3, 2020 By the way: Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now