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Showing results for tags 'jurassic'.
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From the album: Fossil Collection
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The lithographic limestones of Nusplingen in Baden-Württemberg are somewhat older than the more famous deposits of Solnhofen in Bavaria. The length of the crustacean (without antennas) is about 18cm. Diagnosis (Schweigert 2001, p. 4, translated from German by oilshale): " Large-bodied species of the genus Antrimpos whose head spur bears 11 spinous processes on the dorsal side, with a greater distance between the rearmost and the others. On the ventral side of the head spur there is 1 spur just anterior to the anteriormost spur of the dorsal side. Long propodite on the elongated 3rd pereiopod. " Line drawing from Schweigert 2001, p. 5: Identified by Dr, G. Schweigert, State Museum of Natural History Stuttgart, Germany, References: G. Schweigert (2001): A new species of the genus Antrimpos MÜNSTER (Crustracea, Decapoda, Penaeidae) from the Nusplingen Lithographic Limestone (Late Jurassic, Late Kimmeridgian, SW Germany). Stuttgarter Beiträge zur Naturkunde Serie B (Geologie und Paläontologie) Nr. 307, pp. 1-33, 8 Taf., 6 Abb.
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From the album: Vertebrates
Coccoderma nudum REIS, 1888 Late Jurassic Tithonian Solnhofen Bavaria Germany Length 32cm- 3 comments
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- coccoderma
- coelacanth
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From the album: Invertebrates
Antrimpos undenarius SCHWEIGERT, 2001 Late Jurassic Kimmeridgian Nusplingen Baden-Württemberg Germany -
Longileptolepis wiedenrothi Arratia & Thies, 2001
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Longileptolepis wiedenrothi Arratia & Thies, 2001 Early Jurassic Toarcian Haverlahwiese Salzgitter Lower Saxony Germany -
From the album: Holzmaden
A 1 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Another picture:-
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- crocodile
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Dinosaur vertebrae
José Roberto Morales Piato posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello all I am a new member here.As I don´t have experience in this field,I would appreciate if someone could tell if this vertebrae is original.If so,is it possible to say that it belonged to an Allosaurus? Best Regards, José
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Alternative combination: Pholidophorus americanus Taxonomy from Fossilworks.org. Diagnosis "A generalized halecostome neopterygian with the following combination of primitive and derived characters: braincase with persistent otico-occipital fissure; no supraoccipital; intercalar without membranous outgrowths; parasphenoid broad, toothed, with foramina for efferent pseudobranchial and internal carotid arteries; vomer median; nasals separated by rostral. Nasal processes of premaxillae simple, meeting in midline and occasionally fusing; maxilla free and mobile, extending beneath posterior part of orbit, no supramaxilla. Quadratojugal independent and splintlike. Interopercular present. Post-temporal (suprascapular) with internal process. Large, median basihyal toothplate; no gular. Vertebral column with separate neural arches and dorsal intercalaries throughout; separate ventral intercalaries present only in anterior part of caudal region; unpaired neural spines in posterior half of column. Dorsal and ventral chordal hemicentra meeting as annular chordacentra in mature individuals. No ossified ural/neural arches. At least seven epurals. Hypocaudal skeleton with five elongated preural haemal spines and at least eight unmodified hypurals. No clavicle. Scales rhomboidal, composed of enameloid and bony base; dentine absent. Basal and fringing fulcra on all fins." Line drawing from Schaeffer et al. 1984, p. 2796: Identified by oilshale References: C. R. Eastman (1899) Jurassic fishes from Black Hills of South Dakota. Geological Society America Bulletin 10:397-408. Schaeffer, B.. Patterson, C. (1984) Jurassic fishes from the western United States, with comments on Jurassic fish distribution. American Museum Novitates ; no. 2796, pp. 1-86, figs. 1-39, tables 1-4
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The first week of June I managed to break away from a European excursion with my wife to do a couple hours of collecting in northern Switzerland! We found a boatload of late-Jurassic (Birmenstorf-Member) ammonites and one nice echinoid which should be awesome with some prep! Funny part, on the drive back my wife mentions finding an ammonite that looked like there were nipples on it. Not until we get back to the apartment and start cleaning things off do I discover it was the echinoid she was talking about! *shes a rookie I could use some help with ID confirmation and IDs in general. Taramelliceras callicerum Ochetoceras canaliculatum Paracidaris blumenbachii Trimarginites arolicus (easy because of the grooves on the keel) These have fine ribs, are super thick relative to size but have goniatite type 'sutures' thoughts? (I dont think the far right one is equivalent, i have some other pictures of that one) Assumedly all of these are Perisphinctes, but I cannot tell the difference between all of those ribbed ones to save my life. They may need some prep to help determine Fatter, round keel. Glochiceras? There are quite a few that look like Trimarginites but have smooth keels. Thoughts? Are they just more weathered potentially hiding the grooves on the keel? These, from the paper most closely resemble Glochiceras crenatum but I dont feel like that specimen is closely enough related. I would think those spines along the keep would be easy to ID. One more, its a bid weathered but I figured someone might recognize it. Has some decent sized spines along the edge of the keel (arrows) Euaspidoceras oegir, maybe? Thanks for any help!
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From the album: Fossil Collection
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I was knocked out (figuratively) by this little nodule as soon as its finder and preparator posted it. It now sits prominently in my belemnite display cupboard. Belemnites are my main interest which is the official reason I wanted it, but for some specimens it's just love at first sight. It's a Nannobelus acutus (I think - it's not always straightforwards...). They're scarce in this subzone locally, and only very rarely crop up in classic Sinemurian ammonite nodules from Dorset. In fact, I know of only one other but I'm sure there are more out there. (At other levels, and elsewhere, it's a common belemnite.) The ammonites are mostly Cymbites sp. (little, sub-spherical things), with one Asteroceras cf. margaritoides visible (there's another hiding under the belemnite). I think it took vision to decide to prep this - cracked open, you'd just see common little ammonites and a broken belemnite which a lot of people might not bother with, but it's turned into one of the most aesthetic specimens in my collection. Lower Jurassic, Black Ven Mudstone Member. Obtusum Zone, Stellare Subzone, Charmouth, Dorset, UK Nannobelus: 4.5cm Asteroceras: 1.8cm Cymbites: 1cm down to 2mm - I love the hollowed apertures!
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- asteroceras
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Hello all, I have recently acquired more fossilised Ostracods from here in Connecticut. All of them are very different from each other and some come in plates as hash while others are more scattered but also whole. The plates range in sizes but the ostracods are pretty much the same everywhere. Some plates also have clam shrimp. These do not seem like particularly rare pieces although I have not seen any others from the Jurassic of CT. In return I am mostly looking for any Paleozoic material but I am open to any suggestions. Thank you everyone, More pictures will follow in the comments.
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- connecticut
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I’ve just joined and am looking for some help identifying some fossils I’ve picked up over the years. Trouble is I can’t remember where I found some of them. A neighbour told me his kids were interested in fossils and I was going to give him a box of mine for them to keep but they’re quite young and may be baffled by them unless I can give them a name so they can look them up and find out some more for themselves. I’ve spent hours being amazed by the information in the members’ galleries and learned quite a bit about some of the fossils but I’m still stumped by several. So I’ll take some good pictures and post them up later and any advice would be really gratefully received. I did study geology and fossils as a small part of my education, but that was soooo long ago that I’ve forgotten most of it now. But I just love finding stuff! And knowing what that stuff really is... makes it so much more intriguing.
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From the album: Theropods
From the Carnosauria group which ran from the Jurassic to Cretaceous came a fearsome theropod known as Allosaurus. These Jurassic age teeth were hand collected by our curator at the Museum of Ancient Life in Lehi, Utah during his visits to the Jurassic aged Bone Cabin Quarry within the Morrison Formation (Wyoming) around the fossilized skeleton of a Barosaurus Sauropod. It is believed that one or more Allosaurus was scavenging from the carcass. Crocodile teeth have also been recovered from the site. To this day these prized teeth worth hundreds if not thousands of dollars remain in the curators private collection.-
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From the album: Theropods
From the Carnosauria group which ran from the Jurassic to Cretaceous came a fearsome theropod known as Allosaurus. These Jurassic age teeth were hand collected by our curator at the Museum of Ancient Life in Lehi, Utah during his visits to the Jurassic aged Bone Cabin Quarry within the Morrison Formation (Wyoming) around the fossilized skeleton of a Barosaurus Sauropod. It is believed that one or more Allosaurus was scavenging from the carcass. Crocodile teeth have also been recovered from the site. To this day these prized teeth worth hundreds if not thousands of dollars remain in the curators private collection.-
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- allosaurus
- carnosaurs
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From the album: Theropods
From the Carnosauria group which ran from the Jurassic to Cretaceous came a fearsome theropod known as Allosaurus. These Jurassic age teeth were hand collected by our curator at the Museum of Ancient Life in Lehi, Utah during his visits to the Jurassic aged Bone Cabin Quarry within the Morrison Formation (Wyoming) around the fossilized skeleton of a Barosaurus Sauropod. It is believed that one or more Allosaurus was scavenging from the carcass. Crocodile teeth have also been recovered from the site. To this day these prized teeth worth hundreds if not thousands of dollars remain in the curators private collection.- 2 comments
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It's been almost four years since I last went out into the field to hunt for fossils. Been so busy these past few years but finally a one week window arrived this May, and I once again entered the ancient desert home of the dinosaurs. As advised by the admins, I now post this trip with humbleness and excitement after the VFOTM has ended (very nice Ptychodus tooth, btw!) As per previous posts and trips, I will have to leave out landscape photos and location details of the fossil sites, as these sites in China can unfortunately be prone to blackmarket fossil poaching and other negative operations/awareness. I have been joining paleontological expeditions with professional and national teams since 2012 to hunt for dinosaurs, but this time the location is relatively new, and many species have yet to be described (only one eusauropod mamenchisaur dinosaur is in the works of being published at the moment). This new locality is dated to the Middle Jurassic period (Bajocian stage, 170 million years ago), and was mostly a delta-river system that fed into fast and deep rivers. Therapod fossils, Sauropod fossils (mainly) and Thyreophoran fossils are known to have been found since the area's initial prospect 4 years ago. Without further due, I will begin the report (sit back, it might take a day or two to finish, getting late here now!)
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Hey guys. This shark tooth is from Reudern, Germany. It is close to Holzmaden which is Jurassic so I assume it is also Jurassic. What is it??? Some kind of cow shark but I don’t know the specie. Thanks for any imput. Kind regards.
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Hey folks, got a big one to cross-check with everyone. It's a partial....something. Does this match any identifiable features seen on theropods, like the shape of a pubis or scapula? Location: Oxfordshire, England Size: 220mm X 221mm Any help would be muchos appreciated. Cheers!
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- jurassic
- kimmeridge clay
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Hey! I recently found this for sale, but I figured it would be good to get an ID and see what you all think before purchasing. It seems to be Notostraca, probably Lepidurus. I seller told me it’s from Yixian Formation (Jurassic), Liaoning, China.
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Hi all, Would be great to have the following pieces ID'ed. Jurassic shallow water sea (Kimmeridgian-Tithonian, possible Hauterivian). Sorry for varnish. Thank you. 1. Large vertebra, that doesnt look like usual plesiosaur, weight 1,4 kg. If it is something terrestial, it would have high scientific value. Already asked for ID but didnt get many replies.
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Quite rare decapode with striking, spined scissors. Scissors are relatively long and strongly toothed. Reconstruction of Palaeopentacheles roettenbacheri:
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- jurassic
- palaeopentacheles
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Found this perfectly split in half tooth that shows the root structure, the shape seems to be mosasaur but not sure. Any thoughts or ideas??
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From the album: Holzmaden
A 1.4 cm long Ichthyosaur tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Some more pictures: -
Found this interesting fossil over the weekend, can’t identify the pattern on it. Any thoughts?
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