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Showing results for tags 'jurassic'.
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Hey everyone! I recently acquired this oyster from Tulear province, Madagascar. The seller has listed it as Rastellum carinatum, but doing any research online, I’ve only found other sellers selling similar fossils. I did come across a Wikipedia article for Agerostrea sp. It appears to be the same shell, and it lists it as occurring in rocks that are Maastrichtian age from Madagascar. Are these the same species just under different names or are they separate? If so, what genus does my specimen belong too? Any response would be greatly appreciated from you guys, we’ll see how challenging this might be to figure out. Thanks again -Nick
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found some bizaare leaves in the YP formation(early Mid-Jurrasic or late Early-Juranssic ) of the west mountains in Beijing China. looks like palms. Any clues? the finest mark in pic is 1mm.
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Hi all! A bit of development to the Frozen fossils topic. It's the same Moskva river Bronnitsy Oxfordian, but some 5km upstream, where you can find a bit younger layer of Amoeboceras serratum ammonites (earlier it was Amoeboceras alternoides layer/zone). The difference is mainly in the keel, it's less pronounced. The layer is accessible only in winter. Dont expect it to be breathtaking, the preservation is unfortunately worse and the fossils are more scarce. The shore:
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From the album: Vertebrates
Mesturus verrucosus WAGNER, 1863 Late Jurassic Tithonian Painten Rygol quarry Bavaria Germany Length 8.5cm Quite rare juvenile fish. -
An interesting article that discusses the “Golden Age” of sauropods, the Morrison Formation is reported to have yielded 13 genera and 24 species of sauropods. For collectors makes identification of teeth a pretty daunting task... Paper. https://giw.utahgeology.org/giw/index.php/GIW/article/view/42
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Hello. I have this large black ammonite acquired from a man who lived in Brazil. Supposedly this ammo is from Peru, but I do not know any other info on it. There are so many ammo types it makes ones head spin trying to identify the details. Any help here would be appreciated. Thanks!
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Ive always enjoyed fossil hunting in local areas however I've never done any prep. work at all to specimes I've brought home. I've two practice pieces singled out to experiment with. (If it goes horribly wrong nothing lost) One a random chunk of lias clay with some bivalves and the other one a little ammonite just peaking out of another lump of jurassic lias clay. The matrix isn't particularly soft or hard with either. I have no appropriate tools in my possession however I'm willing to buy some basic things which are necessary. Any advice would be appreciated.
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A new fossil hunt on the French coast this weekend. The winter storms from the past week battered the coastline and this resulted of course in a few really nice finds. This time we weren’t prospecting alone, but two friends who recently started to collect fossils tagged along . The Saturday morning we prospected the late Jurassic beaches, we started with a slow start, but we finally did find 3 really nice echinoids, and a big ( heavy ) ammonite. At noon we went to the 2nd spot with late cretaceous chalk ( Cenomanian), here the storms really did their work, the recent scree piles were completely washed out and loos fossiliferous boulders were scattered all around. I did found some quite nice ammonites ( Acanthoceras rhotomagense and Cunningtoniceras inerme ), but Natalie hit the jackpot with 2 terrific finds. First up she found a huge and complete nautilus ( Cymatoceras elegans ) only slightly weathered on the side from peeking out of the boulder. A little bit further she found a big turillites ( Hypoturillites tuberculatus) from 25cm, the best part was that it came out in one piece, those heteromorphs usually break in fragments if you try to remove them. On Saturday we went to some Kimmeridgian exposures, but the storm on that day made it really difficult to search and we had to go back to the car’s after a couple of hours due to the terrible weather. But we did find quite a few Aspidoceras sp. ammonites. the saturday morning: saturday afternoon: The stunning Cymatoceras the turillites: The haul from this weekend:
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I was wondering that the madagascan jurassic clams and cretaceous cockscomb oysters from my collection did not have a comprehensive label,I wanted to ask you what they were.. Here are a few photos online: https://www.google.com/search?q=madagascar+fossil+clam&sxsrf=ACYBGNSyt5RjY1qraJUr3kcrF1FSPuVtBg:1581930994833&tbm=isch&source=iu&ictx=1&fir=q1GrCKB9r4EOpM%3A%2CRVLU8rvAwW_qDM%2C_&vet=1&usg=AI4_-kRLA3HGjyWBFynUylzJaveHH4B7QA&sa=X&ved=2ahUKEwish4aYoNjnAhXIUN4KHZ2nCtkQ9QEwAHoECAoQHg#imgrc=oy8HBIbkpemGJM
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Classic Mosasaur Jaw - real/fake?
Fofofossil posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hi all, I’m new here, hello. Whilst I’ve purchased the odd small fossil and gemstone etc I’m very much a novice so bear with me. I’ve come across this Mosasaur Jaw. I know these are widely faked so I’m already sceptical but wanted your expert opinions too. The seller says it is genuine and not composite. Pictures attached. My thoughts here, it’s all I’ve got! - It’s big, much bigger than most fakes that that are much smaller (read easier to distribute/post). - partially exploded, and a random shark tooth in the matrix too. - Some small, baby? Teeth seem to show under the main teeth but I’ve no idea if these are to be expected. look forward to your comments!
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Footprints of early Pterosaurs showed that they were good walkers
msantix posted a topic in Fossil News
An article describes some rare finds of non-pterodactyloid pterosaur footprints. It was thought that earlier Pterosaurs (long tailed Pterosaurs) were poor walkers since footprints of these early Pterosaurs were rarely found compared to some later Pterosaur. However these new discoveries have shown that the earlier Pterosaurs were quadruple and had five toes on their hind feet (compared to four for the later Pterosaurs), and the researchers believe that this is evidence that they were also good walkers and not clumsy on the ground. https://www.scientificamerican.com/article/footprint-find-could-be-a-holy-grail-of-pterosaur-research/- 2 replies
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A few of my ammonites collected from the Inferior Oolite at both coastal and inland quarry sites in Dorset, UK.
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Hi all A quick introduction. I'm a keen, amateur fossil collector and focusing on the Jurassic stratas in Dorset. I retired from my job as a primary school headteacher and education advisor, to move to and live in the place that I had visited all of my life - the Jurassic Coast of West Dorset. Suffice to say that the opportunities to collect fossils and to meet similar people is beyond expectations. I have, in the past few years, taken to writing and with my colleague, Craig Chivers, have now had published two books by Siri Scientific Press; 'A Guide to Fossil Collecting on the West Dorset Coast' (2018) and 'A Guide to Fossil Collecting on the South Dorset Coast' (2020), both around 230 pages in length with full colour throughout. I'm looking forward to being a member of the forum, although I've been lurking in the shadows for some while! All the best Steve
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The one on the left and right are location unknown. The shiny one in the middle was found at Charmouth, a Jurassic area. sorry for photo quality.
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Hello, this is my first post on the forum so firstly I apologise if I have done anything wrong. I brought these teeth a number of years ago and have only just got round to sorting them out. The first one was listed as Jurassic crocodile tooth and the second as Jurassic Plesiosaur tooth, they both come from the Oxford clay around Peterborough. I would really like to put a species name to these teeth if possible so any help would be greatly appreciated. My initial thoughts were Metriorhynchus for the crocodile tooth and Cryptoclidus for the Plesiosaur but I am a complete amateur and would love some help from professionals. Finding information online about the Oxford clay seems to be very difficult. Thanks in advance for your help.
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How Did an Ancient Sea Turtle End Up Under a Dinosaur’s Foot?
Oxytropidoceras posted a topic in Fossil News
How Did an Ancient Sea Turtle End Up Under a Dinosaur’s Foot? Joshua Sokol, trilobites, New York Times, Sept. 5, 2019 https://www.nytimes.com/2019/09/05/science/dinosaur-crushed-sea-turtle.html Püntener, C., Billon-Bruyat, J.P., Marty, D. and Paratte, G., 2019. Under the feet of sauropods: a trampled coastal marine turtle from the Late Jurassic of Switzerland?. Swiss Journal of Geosciences, 112(2-3), pp.507-515.? PDF: https://paleorxiv.org/2atnq/ abstract: https://link.springer.com/article/10.1007/s00015-019-00347-0 Yours, Paul H.- 4 replies
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These newly described tracks in the Karoo basin are found in a sandstone layer sandwiched between basalts. This allowed dating to 183 million years ago. https://m.phys.org/news/2020-01-firewalkers-karoo-dinosaurs-animals-left.html
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Below is the a paper that provides the details of looking for dinosaurs with a gamma scintillator. Jones, R.R. and Chure, D.J., 1998. The recapitation of a Late Jurassic theropod dinosaur. GAIA: revista de geociências, (15), p.103-110. http://www.arca.museus.ul.pt/ArcaSite/obj/gaia/MNHNL-0000774-MG-DOC-web.PDF Other publications Jones, R.D. and Burge, D., 1995, January. Radiological surveying as a method for mapping dinosaur bone sites. In Journal of Vertebrate Paleontology (Vol. 15, suppl. 3, pp. 38A-38A) Yours, Paul H.
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Can anyone tell me which insect this is? It's Jurassic, Charmouth, Dorset, England. 1.5"
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Good morning all. I have what I believe to be a Lopha bivalve from the upper Jurassic period from China. It measures 8.2 x 5.1 cm and has growth lines(?). Can anyone provide additional information or a correction if required?
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Hello fossil friends in Germany- A few months ago I started planning a History of Paleontology class/trip which will include the Solnhofen area. Before Christmas, the Eichstatt Wiilibaldburg Castle museum was closed. Now I do not see anything on the web site, which is all auf Deutsch about it being closed. Is it actually re-opened? Thanks jpc
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While this isn't the type of "bug" I normally collect, this one appealed to me as soon as I saw it on the auction site. Can anyone in our masses give me any help with regards to identification? The seller, who is also a member on here BTW, speculated at the order Neuroptera, but that was followed by a (?). It is Jurassic in age, from the Daohugou lagerstatte of Inner Mongolia. Thanks in advance.
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A very long time coming, over a decade in discussion, Allosaurus jimmadseni has finally been described in the attached OPEN paper The abstract says it best "Allosaurus is one of the best known theropod dinosaurs from the Jurassic and a crucial taxon in phylogenetic analyses. On the basis of an in-depth, firsthand study of the bulk of Allosaurus specimens housed in North American institutions, we describe here a new theropod dinosaur from the Upper Jurassic Morrison Formation of Western North America, Allosaurus jimmadseni sp. nov., based upon a remarkably complete articulated skeleton and skull and a second specimen with an articulated skull and associated skeleton. " https://peerj.com/articles/7803/ National Park Service article https://www.nps.gov/dino/learn/nature/allosaurus-jimmadseni.htm Article https://phys.org/news/2020-01-species-allosaurus-utah.html Collectors For those of us that collect teeth I'm sure that these teeth are indistinguishable from other Allosaurus species like Allosaurus fragilis and all teeth should all be identified as Allosaurus sp. including bones. Also please do not get taken by sellers claiming to offer Allosaurus jimmadseni teeth. Unless one comes off an identifiable skull its bogus.
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Three specimen of Palaequorea rygoli (center with open mouth, upper right with closed mouth and a very small hydromedusa in the upper left with closed mouth) together with ammonite roll marks. Lit.: Adler, L. & Röper, M. (2012): Description of a new potential fossil hydromedusa Palaequorea rygoli and revision of the fossil medusa Hydrocraspedota mayri from the Plattenkalks of the Franconian Alb, Southern Germany. – N. Jb. Geol. Paläont. Abh., 264: 249-262; Stuttgart
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...Down to Gorky( Brateyevsky) park... Hi all! It is time to introduce you to the famous Panderi zone of the Moscow fossils. It is named after Dorsoplanites panderi ammonite (middle Volgian/Tithonian, Upper Jurassic), which in turn got its name from Heinz Christian Pander. It consists of numerous cast iron-like (black, heavy, solid but fragile) separate concretions containing mostly ammonites and bivalves. The fossils from the Panderi layer are grim, black, rough and depressive (in line with this winter).The zone is present throughout Moscow but becomes most accessible in the south-east. There are at least 5 spots along the river where you can collect them.
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