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Found 152 results

  1. Hi decided to start showing of my collection so I started doing them in individual post here are ammonites/ammolite enjoy!!
  2. Pteronisculus macropterus WHITE, 1933

    From the album Vertebrates

    Pteronisculus macropterus White, 1933 Early Triassic Sakamena formation Ambilobe Madagascar Length 28cm
  3. Hi fossil forum members, its my first post here after following for a long time this great forum. It seems to me that here are a lot of experts with a lot of experience in key out specimens and that´s the reason I now would like to ask for that expertise. I got this bone 20 years ago and have not touched/preped it so far. It is from Madagascar. Any ideas are very much appreciated and will help to place it in the correct way. Thanks very much in advance
  4. Here is paper on a topic many Dinosaur collectors may be interested in. Unfortunately its paywalled so I rented it to screen grabbed the info to pass it along. https://onlinelibrary.wiley.com/doi/full/10.1002/spp2.1282 Sauropod teeth from the Middle Jurassic of Madagascar, and the oldest record of Titanosauriformes Gabriele Bindellini, Cristiano Dal Sasso First published: 06 September 2019 https://doi.org/10.1002/spp2.1282 The material comes from the Mahajanga Basin, see map, Sakahara Formation (Isalo IIIb subunit) which is dated to the Bathonian stage of the middle Jurassic. At least three sauropod taxa are known Archaeodontosaurus descouensi, Lapparentosaurus madagascariensis and 'Bothriospondylus madagascariensis' (this taxon name is regared as invalid but still used to indicate a Bathonian non-neosauropod eusauropod from Madagascar). Eight Morphotypes were identified. Morphotype J1 are referred to as non-neosauropod eusauropoda Morphotype J2 are referred to as non-neosauropod eusauropoda Morphotype J3 are referred to as a basal brachiosaurid or at least a titanosauriform. Not possible to refer this as L. madagascariensis but some authors would be in agreement. Morphotype J6 are referred to as a basal brachiosaurid or at least a titanosauriform. Not possible to refer this as L. madagascariensis but some authors would be in agreement. Morphotype J7 are referred to as a basal brachiosaurid or at least a titanosauriform. Not possible to refer this as L. madagascariensis but some authors would be in agreement. Morphotype J4 & J5 are assigned to Archaeodontosaurus descouensi Morphotype J8 can be referred to a basal taxon of Diplodocoidea
  5. ID help: Majungatholus tooth

    Is it possible to verify the ID of this tooth? It is marked as Majungatholus crenatissimus from the Maevarano formation in Madagascar. It measures 27 mm. Thanks.
  6. Ammonite ID? Perisphinctes?

    Hi there guys, I got this ammonite as part of a set from Madagascar. I would like to know if this is a Perisphinctes. What caught my attention is that it seems to be more "larger" than the regular Perisphinctes I'm used to, at least. Let me know your thoughts.
  7. Claudiosaurus preparation

    Hi all, I have in my collection, two small complete Claudiosaurus in matrix skeletons, and one round concretion which I believe to contain a larger Claudiosaurus (yes, I know some may be skeptical). I am trying the freeze and thaw method to expose him (or her), and had a set back, as a section broke off at the edge, and another on the right edge. It is a large concretion.. about a foot diameter by 4 inches... just so you know the scale. The matrix looks to be more fragile then what I have seen in other video's.. ie, a heavy hammer strke would likely fragment it into many piece. Underneath the corner section which broke off, you can clearly see what I believe to be vertebrae, though the cleave from the freeze thaw didn't really cleave it in half.. it seemed to cleave in sections, not following the fossil. The right crack is removable, and there isn't any fossil visible under that section.. but it created a nice 'T' that could be chiseled down. The section I'm holding in my hand has split with the fossil on both sides, which is what I was hoping it was going to do the entire way.. The good news is, that the broken off piece has exposed more 'territory' for water to permeate along the fossil natural cleavage, I believe. Those with expertise here. Should I continue to soak several days, and then freeze again.. or, at this point.. hammer and chisel? I am afraid to try anything at this point.. but think the freeze and thaw least risky. I think this is quite a valuable fossil potentially. I have attached a photo of the concretion, and his 'little brother' one of my Claudio skeletons.
  8. I bought this today at a market and would like to know what species it is and if it’s real I’m pretty sure it’s real but you never know the guy that sold it to me said it was from Madagascar and some other stuff but he said it all in a different language so I didn’t know what he said. Sorry for the noob question! Thanks for any help
  9. Madagascan tooth - croc or dinosaur

    Hi guys just recently picked this up from the st Marie show. Not alot of information except it came from Madagascar. I bought this in conjunction with a rappetosaurus tooth also from Madagascar that has the same patina and look. the question is what is it? Crocodile? or is it something a bit more interesting and dinosaurian? always interested in your advice and help. best wishes byron
  10. Are the fossil fish nodules from Madagascar offered for sale exported legally? Lots on offer on ones favourite auction website, and elsewhere. Seen a lot of discussion on Madagascan Ammonites for sale, how they may not be exported unless they have been “artistically enhanced” ie polished. But not seen anything mentioned re fish. Does anyone have any info?
  11. Nautiloid Siphunculus?

    Hi there folks, Just need to know if I'm seeing this right. This is a piece from Madagascar I recently received. At first I didn't give much attention to it, but today i noticed the three small markings on the center of the piece. My question is: Would that be the reminiscent of the siphunculus of a Nautiloid specimen? Piece is from Madagascar. Thanks in advance, Juliano
  12. Unknown Ammonite ID

    Hi there guys. I received this piece with almost no information and I was hoping someone could help me ID it. It was supposedly bought in Kircheim, Germany. But it kinda reminds me of Perisphinctes... Would that be right? The plate is about 14 cm x 12 cm.
  13. Coprolite Questions

    Hello everyone, I am slowly trying to get the things in my collection more organized and here I have a piece of what was sold to me as coprolite from Madagascar, I was wondering if we can certainly call this a coprolite and not just a concretion, And if so what animal could it have come from or what the age is as that was not given along with the piece. Ruler is in inches. Thank you everyone.
  14. Bivalves from Madagascar

    Hi everyone, I went to a small rock shop some time ago and bought these three fossil bivalves. Unfortunately, the only information they had on them was that they were from Madagascar. More importantly than the species, I'd really like to find out a more precise location and age (including formation) for them. There were 6 shells available in the shop (all clearly from the same location). 4 of them were #1, then #2 and #3 were unique. #1: I think it's something from the Mactridae family.
  15. Some very nice dinosaur material is being offered for sale but their identifications need some massaging. This beautiful tooth is being identified as Gorgosaurus from the Judith River Fm. Its a "Tryannosaurid indet. " since we cannot distinguish teeth between Gorgo and Daspletosaurus.. Looks like an anterior dentary position. This gorgeous rooted hadrosaur tooth is being identified has Lambeosaurus also from the JRF. Most seasoned collectors know its very difficult to distinguish teeth between different hadrosaur species. Quite a few are described from the JRF not sure if Lambeo is one. Best identified : Hadrosaurid indet. A Majungatholus tooth from Madagascar is also offered. Unfortunately the tooth is clearly not an Abelsaurid so it cannot be Majungatholus or properly called Majungasaurus. What is it I really do not know since very little is described from the Maevarano Formation. It also brings to question if the locality is correct. "This tooth was already posted on the forum" From the Judith River Formation the seller is offering this Troodon foot Claw. Only two photos were included in the listing so it was difficult to tell but initally it does not look like one more like an Oviraptorid claw. If you are interested I would ask for more photos so we can have a better look. From the Cloverly this bone is being offered as a humerus from a Tenontosaurus. I do not believe its one and have included the arm of a Tenontosaurus from my collection to see what one looks like. Its the bone on the left. Could be an ulna but not sure.
  16. Hello everyone, I have recently come across a tooth described as a Majungasurus tooth from the Maevarano Formation. However, the tooth in question does not seem to be from an abelisaurid like Majungasuarus. I have consulted Fanti and Therrien's (2007) paper (attached, but also in the pdf library) on theropod morphology from the Maevarano Formation and cannot find a good match. I have requested further pictures of the mesial serrations and a cross-section of the base. The tooth is described as being 37 mm in length. What do you all think? Fanti and Therrien 2007.pdf
  17. Help with Ammonite ID

    Hi, I bought this ammonite at least 10 years ago and have completely forgot about it since then. It is rough on one side and cut and polished along the mid-line of the shell revealing the interior. I'm certain it is an ammonoid (vs a nautiloid) due to S shaped suture lines and outward curving septa. What I can't figure out is genus and locality of this ammonite. I think it's fair to say this is a mass produced ammonite from madagascar or morocco but I can't seem to find much on the marker currently to draw an association. I've attached some pics.. thanks for your help!
  18. Ammonites de Madagascar

    Hello, Can you help me identify these 10 ammonites from Madagascar ?, please. Thanks.
  19. Ammonite ID request

    Hi there folks, me again. =) I'm having a pretty ocious day, so I'm spending my time taking a look at my unidentified pieces. I was hoping if someone can help me with these specimens. They are both from Madagascar so I'm thinking Aioloceras besairiei... Could that be right? In case I'm right, what about this color pattern? Can we figure out about the mineralization process? Finally, ammonoids from Madagascar are generally A. besairiei? Thanks in advance, Juliano
  20. Madagascar Ammonite ID

    Hi there fellow, Bought this from that auction web site and was hoping someone could give me an ID. I know it's been polished and all, so I really don't know what is possible to accomplish with these pictures. Any help would be much appreciated.
  21. Hi, Does anyone ever see black nautilus fossil before? I saw this fossil in online but is kind of too perfect so will like to seek advise from you guys, is this a fake fossil or over process nautilus fossil?
  22. Another fish of interest. Being sold as a Madagascan Triassic Fish - Australosomus merlei 7cm (and a small piece of fossilised wood.) Is this rare / unusual? And real?
  23. Archaeodontosaurus

    From the album Dinosaurs and Reptiles

    My favourite tooth now :)