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Hi，my friend got these teeth in Madagascar. any idea about the species? thanks!

Here is a 4.1 cm claw from Madagascar. It's supposedly Jurassic but I'm under the impression that it's easy to mix up Jurassic and cretaceous deposits there,so could this be an abelisaur claw? @Troodon

Hi, can you help me to identify that tooth ? Sauropod of the Isalo III formation of Madagascar. Maybe Lapparentosaurus or Archaeodontosaurus ? Thanks to you !

First of all, the list of fish found in Madagascar - there are more than 30 species! So many that I can't treat all of them (and I've never seen some of them). There is relatively old, but good literature on it - Lehman has written one of the most comprehensive publications on this subject: J.-P.Lehman (1952) Etude Complementaire des Poisson de L'Eotrias de Madagascar. Kungl. Svenska Vetenskapsakademiens Handlingar. Fjärde Serien Bd 2 No 6 (in French, 244 pages, 340MB!) Australosomus merlei Piveteau, 1934 is easy to recognize: Small to medium size fish (~ 10 to 15cm / 4 to 6"), fusiform body, relatively small head with a slightly rounded snout. Its dorsal fin is located in the posterior fourth of the body. Caudal fin divided with wide lobes. Scales on the flanks are noticeably stalk-shaped. Ecrinesomus dixoni Woodward, 1910 Medium sized fish with a rounded, laterally flattened body. Snout flattened. Dorsal and anal fins opposite and broad based. Attached behind the body's midpoint. Rhombic body. Caudal fin large, deeply divided. Often mixed up with the somehow similar looking Bobasatrania mahavavica. Unfortunately the head is not completely preserved. Bobasatrania mahavavica White, 1932 There's quite a confusion between Ecrinesomus and Bobasatrania. Even in publications the same reconstruction (the same drawing!) is sometimes labeled as Bobasatrania and sometimes as Ecrinesomus. In the first publication about Ecrinesomus, one Bobasatrania was mistakenly mixed in between. Bobasatrania has a crooked diamond-shaped body – while Ecrinesomus's anal and dorsal fins start directly opposite. Boreosomus gillioti Priem, 1924 Small to medium sized fish (10 to 20 cm / 4 to 8"). Slender body, dorsal fin small, located before the body's midpoint. Caudal fin divided. Strong, rectangular scales. Parasemionotus labordei Priem, 1924 Small fish (up to 15cm / 6") with a rounded body, somewhat thickset appearance. Broad but short head. Dorsal fin attached to the posterior half of the body. Pectoral and anal fins small. Caudal fin moderately divided. Eyes remarkably large. Teffichthys madagascariensis Piveteau, 1934 (=Perleidus madagascariensis) Medium sized fish with a somewhat thickset appearance. Bulky head. Its dorsal fin is located in the posterior third of the body. Pteronisculus cicatrosus White, 1934 Small to medium fish with fusiform body (less than 15cm / 6" ?). Small dorsal fin, located slightly behind the midpoint of the body, diagonally opposite the anal fin. Big eyes. Relatively long and broad pectoral fins. Comparatively small scales. Pteronisculus macropterus White, 1933 In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common and the somewhat rarer Pteronisculus macropterus. According to White, P. macropterus is characterized by an "elongate-fusiform body; maximum depth rather less than length of head with opercular apparatus, and equal to one-quarter total length to base of caudal fin. length of pectoral fin exceeding distance between tip of snout and hinder margin of maxilla. Origin of dorsal fin above fortieth scale-row from pectoral girdle approximately. Scales in more than seventy vertical rows to base of caudal fin, and ornamented with oblique rugae only." Paracentrophorus madagascariensis Piveteau, 1940 Small fish (up to 15cm / 6") with a rounded body, somewhat thickset appearance. Dorsal fin attached to the posterior half of the body. Pectoral and anal fin relatively large. Anal fin starts well behind end of dorsal fin. Caudal fin moderately divided. Eyes remarkably large. Icarealcyon malagasium Beltan, 1984 Icarealcyon can be easily mixed up with Parasemionotus; characteristic are the huge pectoral fins. Due to its enormous pectoral fins, Icarealcyon malagasium was described by Beltan as a "poisson volant" - a "flying fish" - in the family Semonotidae (not related to what is now known as "flying fish" - these are Exocoetidae in the order Beloniformes). You would expect flying fish to be fast swimmers - the rather thickset appearance of Icarealcyon more likely hints to slow swimmers with relatively high maneuverability (comparable to Albertonia from British Columbia). Fig. C is Icarealcyon - the reconstruction is not quite correct. Saurichthys madagascariensis Piveteau, 1945 Medium sized fish with elongated, streamlined jaws. Head elongated. Dorsal fin almost at the end of the body, opposite the anal fin. Small scales. Whiteia woodwardi Moy-Thomas, 1935 Massive body. Pectoral fin attached slightly before the first dorsal fin. Piveteauia madagascariensis Lehman 1952 More slender body. Pectoral fin attached well before first dorsal fin lobe. Ventral fin opposite to first dorsal fin lobe. Have fun Thomas PS: If you are interested in Lehman's paper send me a PM with your email address (remember - 340MB!)

Hello everyone, I have recently acquired this Barasaurus fossil from Madagascar and I was wondering if it really is 100% natural as the seller has stated many times to me. I have read a couple of threads in this forum regarding Barasaurus fakes but still have many doubts. If possible, I would greatly appreciate any input from this forum’s experts regarding this piece. Do you think it's real? Please find attached some photos and thanks a lot for your help:

5" x 7" x 9/16" Thick Slab, polished on both sides:

Hi everyone! I just got in some interesting teeth from the Jurassic of Madagascar Isalo lll Formation (yes I have good proximity. The were found on the outskirts of Boriziny by surface collecting, I included a map) and some of the teeth I'm not sure what they are. My best guess is either Croc or Pterosaur, leaning (hoping) Pterosaur since there is no carina and most have a flattened oval base like the Pterosaur teeth I usually see out of Morocco but then there's one with a circular base that I'm not entirely sure. I saw somewhere that Rhamphorhynchidae can be found within the Isalo, could these be from one of them? first tooth has CH of 16.5 mm, CBL of 7.11 mm, and CBW of 7.98 mm second tooth has a CH of 19.98 mm, CBL of 5.26 mm, and CBW of 6.3 mm Any insight is appreciated as always!

Hi all, Curious to know what family you think this tooth likely came from. Could it be Allosaurid? From Isalo IIIb in the Mahajanga basin of Madagascar CH: About 27.5mm (estimating for tip) CBL (carina-to-carina): 14mm CBW (mesial side to distal side): 8.5mm Mesial Serration Density: 1.9mmm Distal Serration Density: 2.1/mm Thank you!!

Hey all, Curious to see if you have similar thoughts about this tooth. In terms of that possibility that it's not, in fact, from the Jurassic, I'm not sure I'm seeing the kind of denticle shape/hooking and marginal undulations of Majungasaurus. From Isalo IIIb in the Mahajanga basin of Madagascar CH: About 27.6mm CBL (carina-to-carina): 13.9mm CBW (mesial side to distal side): 7.5mm Mesial Serration Density: 2.2mmm Distal Serration Density: 1.9/mm Thank you!

Looking to purchase this pair of ammonites from Madagascar but was wondering if they’re really 100% natural or potentially repaired from pieces of different ammonites. I can’t really tell but the back looked questionable!

A while back, I was researching the number of likely Tyrannosauroidea dinosaurs that inhabited the Southern Hemisphere (I know this is a very controversial subject) in the Early Cretaceous for an extra credit research paper I was doing for my freshmen year college geology class. As I was looking for data for the paper, I found an unusual data entry on the paleontological database website fossilworks.org - It lists Tyrannosauridae remains from Jurassic Madagascar. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=55391 The specimen MSNM V5819 (consisting of a partial tooth) was apparently found in Mahajanga, Madagascar at the Bathonian aged Isalo Illb Formation (dating 167.7-164.7 million years ago) in 2003. S. Maganuco, A. Cau, and G. Pasini (2005) First description of theropod remains from the Middle Jurassic (Bathonian) of Madagascar. Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, 146(2):165-202 https://www.researchgate.net/publication/257651210_First_description_of_theropod_remains_from_the_Middle_Jurassic_Bathonian_of_Madagascar (You can read the actual paper with this above link). Here is also two photographs from the paper of the specimen MSNM V5819 The authors of the paper (which I must say did a really good job with the research and paper itself) state that a healthy degree of caution must be given in assigning MSNM V5819 to Tyrannosauroidea. Still, if this is indeed correct, It would be one of the earliest members of Tyrannosauroidea, with the only currently known older Tyrannosauroidea taxon being Proceratosaurus of England. The Specimen MSNM V5819 is maybe even older than Kileskus of Russia, Guanlong of China, and Aviatyrannus of Portugal. Still, the only currently known specimen is a single tooth, MSNM V5819, and I'm not 100% certain this represents a member of Tyrannosauroidea? What do you guys think?

Hey all, This is supposed to be from Isalo IIIb in Madagascar. Does it look ceratosaur to you? Could it be Majungasaurus with faulty location? I suspect not because of the character on the denticles of Majungasaurus teeth.

Hello everyone, I need your help to identify an ammonite. Today I bought one but I bought it in a place where they only sell minerals so when I asked where it was from or more information about the fossil they told me they didn't know. I am not a great expert but I understand that most ammonite fossils are from Madagascar, although I am not saying that this one is from there. My questions are the following: Is there any way to know the age and species of the ammonite? Before making the publication I was looking for a little information and I saw that it is very similar to Phylloceras due to the markings on the shell, which I have seen on sales sites such as ammonite from madagascar, that is why I suspect it, but I am an amateur so I don't know. any. Thank you all

hey , I purchased this leg bone in Tucson. The dealer told me that is a sauropod dinosaur leg bone from the Cretaceous strata of Madagascar. The key point is that the leg bone is attached with skin. I found that these black "skin" has wrinkles similar to real skin. Is this black "skin" real dinosaur skin? I searched some materials. Professor Kristi Curry Rogers found that Rapetosaurus had skin ossification. I would like to hear more comments, thank you！

This piece of fossil was said to be a dinosaur bone from Madagascar. Is it dinosaurian? A femur/tibia?

Sorry for the necro bump but I saw this online, a large palaeoniscid from Madagascar? Any idea on genus or species or is it something new? EDIT: sorry about the link

Hey Guys, My friend has these 5 Madagascar dinosaur teeth from an old collection that he wants to ID. They’re all from the Jurassic Isalo III formation. Thanks for all the help!!! Here are some pictures and sizes: Left tooth 14mm Middle 15mm Right 16mm

I have aquired a slab of rock that has a Barasaurus in it. Not sure if thats the correct name or not. Ive taken a close up of what is exposed, circled in white. Im afraid this is the head? Would so much have wanted the head end in the rock instead of the tail end. What do you guys think? Thanks