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Showing results for tags 'maevarano formation'.
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Its always good to see new publications on dinosaur material from Madagascar since we often see it for sale and misidentified. Here we have a publication that looks at the osteology of Rahonavis ostromi, a paravian from the Maastrichtian Maevarano Formation, Mahajanga Basin, northwestern Madagascar. Unfortunately no functional teeth are described just unerupted ones but it gives us a great description of bones and claws. https://palaeo-electronica.org/content/2020/3060-osteology-of-rahonavis
Dinosaur teeth from Madagascar are frequently misidentified since very little has been published and specific localities are rarely cited, known or accurate. Without an accurate provenance its very difficult to properly assign teeth to any specific genus/species if any are actually described.. Here are a few examples of teeth that are currently being offered for sale. This tooth is being represented as Majungatholus from the Maevarano formation of Madagascar. Majungatholus is an Abelisaurid unfortunately this morphology is not even close to being one. Its an indeterminate theropod tooth. Weak provenance does not help. Below I Included a photo of a Majungatholus tooth. DENTAL MORPHOLOGY AND VARIATION IN MAJUNGASAURUS CRENATISSIMUS (THEROPODA:ABELISAURIDAE) FROM THE LATE CRETACEOUS OF MADAGASCAR by Joshua B. Smith 2010 This tooth is being represented as a very rare Rapetosaurus sauropod from the Maevarano formation. Again the morphology does not even come close to what a Rapetosaurus tooth looks like its spoon shaped not peg like. Below I've added a photo of what one looks like. Weak provenance does not help.. The last of the dinosaur titans: A new sauropod from Madagascar by Rogers, Foster 2001 This tooth is being represented as a Maxillary Bothriospondylus sauropod from Kamoro of Madagascar. The provenance is very weak and the spoon shape points to a couple of possible candidates including Bothrio. depending on formation. Additional cautionary note: The state of accurate identifications of dinosaur material is the worst I've ever seen. Please dont trust anything you see sold online by auction sites, trusted dealers, those you've done business with, other collectors or at shops or shows when they get back up and running. Do yourself a favor PLEASE have everything checked out by knowledgeable individuals