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Showing results for tags 'madagascar'.
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I have bought composits before, just didnt know it at the time. While at Quartzite selling some rocks ive had for many years, (nice to get rid of some stuff), I ran into this ammonite composit from Madagascar. I was very impressed by this piece! I know the lady that sells all this madagascar stuff and how she works. She had $1600 on this piece but I already knew that that means she wants $800 for it. I left and thought about it that night. I went back the next morning and offered her $400 for it. Just playing the game. The absolule lowest she would take was $550 and I broke down and payed that amount. The picture does NOT do it justice. All these ammos are really very colorful, but im still going to rework their fako rock to make the piece look better and then do a number on the ammo themselves to really make them shine! Gunna be a very nice fire place for sure!!! My very first composit. RB
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Belemnite Madagascar?
Seguidora-de-Isis posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello! Good afternoon to all! I have noticed that every year, the Chinese import tons of these supposed belemnites from Madagascar to resell over the internet. And now, I noticed that a Chinese seller announced on our favorite auction site that these belemnites are of the species belemnopsis tangarensis. My question is whether these belemnites of Madagascar are real even, and is there any scientific study that could actually define them as being of the belemnopsis tangarensis species? And what is the age in millions of years of these supposed belemnites? Thank you for all kind of help!
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The fossil shown in the attached photos is said to be a coelacanth from Madagascar? What do you think?
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I would truly appreciate any response to my question. I recently purchased these 2 ammonite fossils but I suspect they are fakes. Can anyone help?
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Pyritized Ammonites From a Renown Location
Douvilleiceras posted a topic in General Fossil Discussion
Ammonites from Madagascar are readily available in rock stores around the world. Dating from the Mesozoic, these ammonites represent an extremely affordable example of prehistoric sealife. In Cretaceous deposits, the iridescent nacre is preserved, encasing interior structures replaced with a variety of minerals. Yet, pyritization (replacement with Iron Sulfide, formula unit FeS2) is uncommon. However, I recently received some pyritized examples from the site - the first I've seen in person. Attached are pictures of some of these interestingly preserved ammonites, including a comparison with Peruvian pyrite (I have a small collection of pyrite from around the world). Polished Example: Sliced Example: Peruvian Comparison:
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Hi, this is said to be a specimen of Nothosaurus from Madagascar. It is enclosed in a geode. Any idea what species is it? And if it is genuine?
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Hi, guys, fossils from Madagascar again. Recently I found out that lots of rocks claimed to be dinosaur bone fossils are imported from Madagascar to China and they are polished to make ash trays or other utensils. To me, this destroys the scientific value of the fossils. I have attached photos of some of the unpolished fossils. Are they really dinosaur bones? By the way, I love this forum, and you guys are really helpful and have a lot of expertise.
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Got a pretty little ammo pendent yesterday. Funny how I live in Florida but do not own any shell fossils,nor a single sharks tooth. I guess they are just so plentiful around here that I never kept any. Anyhow,back to the pendant. The guy I bought it from had little to no knowledge outside 'it's a shell,it's opalized,it's 5 bucks' So after some personal research I think I have a...... Cleoniceras Cleon Lower Cretaceous Madagascar It's 1 inch at its widest. Now,other than confirmation of ID, I'm wondering what the tiny spiral inside the opening is. Is it another teeny tiny ammo or just junk that settled inside as it fossilized.
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Hi, is the specimen shown in the photos a fossil vertebral bone of a dinosaur or whale? The fossil is from Madagascar. Thanks.
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Hi, I have obtained a skull fossil from Madagascar. Anyone has any idea if it is a dinosaur skull?
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From the album: MY FOSSIL Collection - Dpaul7
Cleoniceras cleon Ammonite Madagascar TIME PERIOD: Cretaceous Period (150 Million Years) Cleoniceras is a rather involute, high-whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls. Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". *NOTE: This specimen has been split to show the inner chambers. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Cleoniceratidae or †Hoplitidae (disputed) Genus: †Cleoniceras Species: †cleon -
From the album: MY FOSSIL Collection - Dpaul7
Cleoniceras cleon Ammonite Madagascar TIME PERIOD: Cretaceous Period (150 Million Years) Cleoniceras is a rather involute, high-whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls. Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". *NOTE: This specimen has been split to show the inner chambers. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Cleoniceratidae or †Hoplitidae (disputed) Genus: †Cleoniceras Species: †cleon -
From the album: MY FOSSIL Collection - Dpaul7
Polished Belemnites SITE LOCATION: Madagascar TIME PERIOD: Jurassic (~145-201 Million Years Ago) Belemnitida (or belemnites) is an extinct order of cephalopods which existed during the Mesozoic era, from the Hettangian age of the Lower Jurassic to the Maastrichtian age of the Upper Cretaceous. The belemnite is the state fossil of Delaware. Belemnites were superficially squid-like. They possessed ten arms of equal length studded with small inward-curving hooks used for grasping prey. However, they lacked the pair of specialized tentacles present in modern squid. Belemnites (and other belemnoids) were distinct from modern squid by possessing hard internal skeletons. The internal skeleton was composed of the guard or rostrum (plural: rostra), a heavy solid structure at the posterior of the animals. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Belemnitida -
From the album: MY FOSSIL Collection - Dpaul7
Silver Iridescent Ammonite Fossils Mahajanga Province, Madagascar TIME PERIOD: Middle Cretaceous (110 million years ago) Data: Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida -
From the album: MY FOSSIL Collection - Dpaul7
Sea Urchin Fossil - Mepygurus depressus Madagascar Callovian stage of the Jurassic Era circa 144 to 208 million years ago This type of Sea Urchin, "Mepygurus depressus", like a (sand dollar), is an extremely flat form of echinoid. They are a slow moving creature, feeding primarily upon algae, as they burrow through the soft sand in our oceans. Sea Urchins have a rigid skeletal system, known as a test, which is comprised of several interlocking plates. On the top of their bodies are five visually paired rows of perforations of their endoskeleton, which are formed in a perfect star shaped pattern. These perforations act as a gas exchange system for the Sea Urchin. Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cassiduloida Family: Clypeidae Genus: Mepygurus Species: depressus -
From the album: MY FOSSIL Collection - Dpaul7
Sea Urchin Fossil - Mepygurus depressus Madagascar Callovian stage of the Jurassic Era circa 144 to 208 million years ago This type of Sea Urchin, "Mepygurus depressus", like a (sand dollar), is an extremely flat form of echinoid. They are a slow moving creature, feeding primarily upon algae, as they burrow through the soft sand in our oceans. Sea Urchins have a rigid skeletal system, known as a test, which is comprised of several interlocking plates. On the top of their bodies are five visually paired rows of perforations of their endoskeleton, which are formed in a perfect star shaped pattern. These perforations act as a gas exchange system for the Sea Urchin. Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cassiduloida Family: Clypeidae Genus: Mepygurus Species: depressus -
From the album: MY FOSSIL Collection - Dpaul7
Natural Iridescent Ammonite Ammolite Specimen Fossil Madagascar, probably Mahajanga Province Early Cretaceous period - Early Aptian (about 115 million years old) Cleoniceras is a rather involute, high-whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls. Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl. Ammolite comes from the fossil shells of the Upper Cretaceous disk-shaped ammonites Placenticeras meeki and Placenticeras intercalare, and (to a lesser degree) the cylindrical baculite, Baculites compressus. Ammonites were cephalopods, that thrived in tropical seas until becoming extinct along with the dinosaurs at the end of the Mesozoic era. Other fossils, such as many found in Madagascar and Alberta, display iridescence. These iridescent ammonites are often of gem quality (ammolite) when polished. In no case would this iridescence have been visible during the animal's life; additional shell layers covered it. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida Family: Hoplitidae Genus: Cleoniceras -
From the album: MY FOSSIL Collection - Dpaul7
Natural Iridescent Ammonite Ammolite Specimen Fossil Madagascar, probably Mahajanga Province Early Cretaceous period - Early Aptian (about 115 million years old) Cleoniceras is a rather involute, high-whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls. Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl. Ammolite comes from the fossil shells of the Upper Cretaceous disk-shaped ammonites Placenticeras meeki and Placenticeras intercalare, and (to a lesser degree) the cylindrical baculite, Baculites compressus. Ammonites were cephalopods, that thrived in tropical seas until becoming extinct along with the dinosaurs at the end of the Mesozoic era. Other fossils, such as many found in Madagascar and Alberta, display iridescence. These iridescent ammonites are often of gem quality (ammolite) when polished. In no case would this iridescence have been visible during the animal's life; additional shell layers covered it. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida Family: Hoplitidae Genus: Cleoniceras -
Icarealcyon malagasium Beltan, 1984, a "flying fish"
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Icarealcyon malagasium Beltan, 1984 Early Triassic Dienerian Sakamena Formation Ambilobe Madagascar-
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The prehistoric 'Pac Man' frog that ate small dinosaurs and has a bite as strong as a Tiger By Cecil Borkhataria, MailOnline, Sept. 23, 2017 http://www.dailymail.co.uk/sciencetech/article-4908158/prehistoric-Pac-Man-frog-ate-small-dinosaurs.html The paper is: Lappin, A. Kristopher , Sean C. Wilcox, David J. Moriarty, Stephanie A. R. Stoeppler, Susan E. Evans & Marc E. H. Jones, 2017, Bite force in the horned frog (Ceratophrys cranwelli) with implications for extinct giant frogs Scientific Reports 7, Article number: 11963 (2017) doi:10.1038/s41598-017-11968-6 https://www.nature.com/articles/s41598-017-11968-6 Yours, Paul H.
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Are these Claudiosaurus' real?
bgreenstone posted a topic in Is It Real? How to Recognize Fossil Fabrications
Last night I was contacted by a person on Facebook (red flag #1) who claims to have 7 Claudiosaurus fossils from Madagascar that he wants to sell me. While I would love to have these, I am of course very skeptical of their authenticity. Several of them consist of both the positive and negative plate which is a plus. When I asked how much he wanted for them his reply was "make me an offer" (red flag #2). So, can anyone tell from these photos he sent if these are real or fake? Any suggestions how I should proceed with him? I think he is in Mauritius (red flag #3) He says they're around 30cm / 1ft. in size. -Brian.thumb.jpg.210960463f3f283e6c1096238a1845a9.jpg)
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In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common and the somewhat rarer Pteronisculus macropterus. Diagnosis from White 1933, p. 126: "Pteronisculus with 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 rugæ only." Sketch from White 1933, p. 126: References: White, E. I. (1933): New Triassic palaeoniscids from Madagascar. Ann. a. Mag. Nat. Hist.(10) 11: 118-128; London
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From the album: Vertebrates
Australosomus merlei Piveteau, 1934 Lower Triassic Dienerian Sakamena Formation Ambilobe Madagascar 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.- 1 comment
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Taxonomy from Fossilworks.org. Due to its enormous pectoral fins, Icarealcyon malagasium was described by Beltan as a "poisson volant" - a "flying fish" - in the family Semionotidae (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). Icarealcyon was described by Beltan on the basis of poor material - in all three specimens only the body without head was preserved. Icarealcyon is probably closely related to Albertonia, or possibly even a synonym. Line drawing from Beltan 1984, p. 78: References: L. Beltan. 1984. A propos d'un poisson volant biplan d l'Eotrias du NW de Madagascar: Icarealcyon malagasium Beltan. Annales de la Société Géologique du Nord 103:75-82
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Hello there paleontologists, fossil enthusiast, and everything in between. If you couldn't tell this is the first content I've ever made on the fossil forum so please excuse errors and, or inexperience I apologize in advance. Here is my collection of display fossils as well as modern bones keep in mind this is purely what I have on display I keep the vast majority of fossils I posses in storage with lots of support such as bubble rap and various other materials to ensure complete security of precious peeks into our planet's history. If you have any questions or comments feel free to ask as you please. These are all authentic fossils 2 have been directly seen by a professional (Ursus sp. & Unidentified Dinosaur Cretaceous Rib) The Dactylioceras sp. is very clearly a real specimen however there was no authority on it's authenticity the two Hadrosaur fragments are authentic as well one purchased with it's card of authenticity by D.J Parsons and the other was purchased from the very same hunter whom discovered the Cretaceous rib section. (Note: individual specimen content will be released in time)
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