Search the Community
Showing results for tags 'cretaceous'.
-
Colorado Cretaceous - Fox Hills 02
Brett Breakin' Rocks posted a gallery image in Member Collections
From the album: Sharks and their prey ....
Carcharias sp (?) Cretaceous of Colorado Fox Hills Sandstone© Matthew Brett Rutland
-
Recently made a trip to Ramanessin Brook and Big Brook. I was able to confidently identify most of my finds, except for these few. Here is what I think they are. Please let me know what you all think. Thank you! #1- coprolite #2- coprolite #3- petrified wood #4- petrified wood #5- bone fragment - is there any way to know where it came from? #1 #2 #3 #4 #5
-
Found at bottom of Eagle Ford / top of Woodbine, the Cenomanian and Turonian age. No idea on the first on microscope at 60x, 2mm at longest part. I may have to get a better pic. Second and third pics are the same piece at 10x and 60x, scale in second pic is mm, so 10 mm length. End kind of looks like a tooth, but a jaw would have more than one tooth, so that part makes me think not tooth. I think it is unique enough looking that someone will know what it is. If you look at the 10x picture, some of it flaked off, you can kind of see an outline to the right of how long it was. thanks in advance
-
Here's my latest (tiny) acquisition from the Kem Kem: Looking at the general morphology and almost 'hooked' shape of the denticles on the distal carina, I'm not sure whether this one fits more as a juvenile carcharodontosaurid, juvenile abelisaurid or would fit closer to the dromaeosaurid-like teeth described here?: Mesial midline denticle count: 9/2mm Distal midline denticle count: 7/2mm Both carinae extend to the base. Distal edge: Mesial edge: Cross section (anterior of tooth facing top): Due to the strong lateral compression & apparent lack of interdental succuli, I would hedge my bets on juvie abelisaur, but those denticles are making me doubt it a bit. Anyone got any thoughts?
-
Tree Resin On The Beach Results In Ammonite Fossil Encased In Amber 99 Million Years Later
Scylla posted a topic in Fossil News
Many other species caught in this piece of Amber too https://www.independent.co.uk/news/science/ammonite-prehistoric-amber-myanmar-spider-cockroach-wasp-a8911546.html?amp- 14 replies
-
- 4
-
-
- annonite in amber
- cretaceous
- (and 1 more)
-
Belated trip report from Big Cedar Ridge near(ish) Worland, Wy
RandyB posted a topic in Fossil Hunting Trips
This report is long overdue, but I thought might be worth posting based on the response to the rolling auction items currently up for bid... In the early summer of 2017 my family and I set out on a 7000+ mile roadtrip through 21 states. The trip gave me the opportunity to collect at a couple of famous sites like the Kemmerer's green river formation and wheeler shale in Utah, but one stop combined fossil collecting with some of the most beautiful countryside I've had the opportunity to experience. Big Cedar Ridge is a late cretaceous deposit near Worland, WY. The plant fossils are plentiful but delicate in a light gray matrix, I say "in" rather than "on" because the fossils were the result of a large ash fall that buried the foliage where it stood so the fossils are often in 3 dimensions rather than simply found on horizontal planes. To say it's off the beaten path is an understatement, but it's well worth the effort. Make sure you pay attention to the weather, pack appropriately and make sure your spare tire is in good repair... just in case. We started out early from a bed and breakfast at the base of Devil's Tower (thanks to @minnbuckeye's recommendation). After a 3+ hour drive we got to a spot where I thought the road should be a little past Ten Sleep, but there were no road markers to be found. We went a little further before turning around and taking the unmarked dirt road we initially passed. We didn't see another car once we made the turn so make sure you have everything you need. The drive is 15 miles of dirt roads through BLM cattle grazing land.
- 50 replies
-
- 6
-
-
- big cedar ridge
- cretaceous
- (and 3 more)
-
Picked this up on the beach today. I'm still a noob, but having lived in East Sussex for a few months I've become pretty adept at identifying our local fossils (if it isn't a sea urchin, it's a sponge), but this new thing has me stumped! Initially I thought it was some kind of coral, then on further inspection I thought maybe the top part of an ammonite (or mollusc) shell. Now I'm coming back round to thinking it might be an echinoid, but I can't explain the strut-like structures (surely not spines!?). The Details This was found on the beach near Rottingdean, East Sussex, UK. That means it is likely late Cretaceous (NB: worth noting that I have been told a good deal of the pebbles on the beach have been imported, and the local flint is typically a dark black-grey, so while I assume that most finds are cretaceous this could potentially be from... anywhere) The area is a couple of miles west of Peacehaven, home to several giant Parapuzosia ammonites, and a much richer seam of google hits / background information Photo #1 Photo #02 Photo #03 Right hand side (note triangular markings): Photo #04 Left hand side - good view of the extremely fine strut like structures Finally, if anyone has any thoughts on splitting/ extraction / prep, they would also be gratefully received!
-
Is it possible to narrow down what type of mosasaur a tooth came from? Found a tooth but it looks different from the typical ones I see all over google. Thanks!
-
Hi folks, I've seen a tooth for sale listed as a Dromaeosaurus Albertensis. I trust the seller's ID, but I'm not 100% confident with dromaeosaurs, so would just like to hear what the forum experts think? Locality: Judith River Fm. (Havre, Montana) Size: 2cm These are the only photos, I'm afraid. There is apparently a twist in the mesial carinae, but it's not super clear. Thanks in advance, guys!
-
Since I've recently been honored by the forum, I thought I'd add a little extra this month. Here is a nice little plesiosaur tooth I was lucky enough to find in the Lincoln limestone yesterday. It is my first plesiosaur from this location.
- 8 replies
-
- 13
-
-
-
- cretaceous
- kansas
- (and 1 more)
-
Hello all, I was at my local rock shop and I noticed there was a Triceratops jaw for sale. I am curious about if it is genuine or if it has any repairs. The teeth look like they were inserted. I don't see myself buying it, but I would like to know what other forum members think about the jaw. Sorry I don't have any better photos. It was behind a glass case.
-
This crab along with another of the same type are currently with Torrey Nyborg of Loma Linda University in California. I'm told they are Paradoxicarcinus sp. (possibly P. nimonoides or maybe something new). At any rate Torrey Nyborg expressed interest in examining and describing them because he felt they may be something new. If they are indeed new and/or are published they will be donated to the Royal British Columbia Museum, in my hometown of Victoria (BC), not far from where these and other crab fossils were found).
- 11 replies
-
- 4
-
-
- crab
- cretaceous
- (and 3 more)
-
Crab fossil from southern Vancouver Island
palaeopix posted a topic in Partners in Paleontology - Member Contributions to Science
This specimen of a possibly new crab (galatheoid? or homolodromid?) from southern Vancouver Island has been sent, for study and description, to Torrey Nyborg at Loma Linda University in California. The specimen is to be donated to the Royal British Columbia Museum in Victoria, BC. I will update the forum once I've heard back from Torrey on the status of the specimen. Torrey has also expressed interest in a number of other decapod crustaceans collected in association with this specimen. So those fossils may eventually make their way (two already have) to him for description and potential donation to the RBCM.
- 2 replies
-
- 5
-
-
- crab
- cretaceous
- (and 5 more)
-
A friend of mine was hunting the N. Sulfur River in Texas and came across this piece of ? Late Cretaceous Ozan Formation Any ideas as what this is?
-
Hola folks, Just picked up an itsy-bitsy, teeny-weeny tooth from the gift that keeps on giving; Morocco. It was sold as a juvenile Spino tooth, but I'm thinking there's a better chance of it being croc? I liked the look of it, so bought it anyway. Location given: "Hamada gu Guir, Kem Kem Basin, Morocco." Not sure if you can pick out from my crummy photos, but there are definitely denticles present on the carinae, running all the way from tip to base of the crown. There is also fluting present on both the labial & lingual sides of the tooth, running the full crown length. The cross-section appears to be roughly oval, though could be considered circular (it's hard to tell with the shape of the base). Denticles most noticeable in this one: Profile of denticles can also be (kind of) clearly seen on the right side of the tooth here: And a couple more shots: With the lingual curve and denticles, I'd assume croc from this part of the world, though I've read that labial/lingual curves can be found on Baryonychidae....if only haha! Any input on narrowing down exactly what it might be would be much appreciated.
-
I am trying to identify my gastros. I can easily identify tylostomas, gyrodes, nerinea and lunatia. What has me stumped is Anchura, Turitella, and Cerithium -I had looked up online and in the Field Guide to Texas Fossils and they look like what I have. But then I got the book Texas Cretaceous Gastropods and none of the species look like what I thought i had ID'd. So now I am confused. Any help in ID would be appreciated. ..(all of these were found in Central Texas - Hays, Bandera, Comal, Blanco and Gillespie Counties) I thought these were Turitella, but none look like what is drawn in the Texas Cretaceous Gastropod book, but the Field Guide says Turitella: I think these might be Cerithium bosquense but others say it's Pseudomelania? And are these just small Anchura? The big Anchura I have seem to have a distinct "shoulder" on them:
-
The Non-Dinosaur Additions to Our Dinosaur Education Program
fossilsonwheels posted a topic in General Fossil Discussion
In an effort to give a more complete picture of life on planet earth during the age of dinosaurs, we did a post to get suggestions from TFF members about some non-dinosaur material. We got a lot of suggestions and it turned out to be a super informative post. We learned a lot and were able to begin the process of creating a better program for the kids. Just before that post, I had attended an amazing Ichthyosaur prep lab. It was found in Northern California, a few hours from hometown. Northern California is a dead zone for collecting fossils. There are some fossils to be found here but none on any private land that I know of. It was really cool to see the work being done on a Norcal Ichthyosaur and it ignited some interest on my part. i had already decided to get some Ichthyosaur fossils for our program prior to the TFF post. Our first Ichthyosaur fossil arrived today. It is a Brachypterigius extremeus vertebra from the Kimmeridge Clay of Weymouth, UK. In honor of the fossil, I will even go metric. It is nearly 7 cm and in pretty nice condition. I love it and I can not wait to add more. @JohnBrewer has some really nice Ichthy teeth for us so soon we will have a really nice section of our program for an animal I am very excited about. The second picture is of a really cool Mosasaur vertebra from Kansas that was donated by @Ramo . It is very compressed, crushed in the fossil process but that actually adds to the coolness to be honest. I love it and it was a hit with the kids in it's program debut last week. I am still learning about Mosasaurs but they will have a bigger spot in the program next school year for sure. The third picture shows a shark tooth display, croc teeth, a Mosasaur tooth, and a Pterosaur tooth. The kids love talking Pterosuars and we will some more pieces in the future. We kind of have to. They are extremely popular with kids and I want to expand on them in program. The shark teeth are Cretoxyrhina, Ptychodus, Scapanoryhnchus, and a Squalicorax. I will expand this display this summer as we add some Hybodonts to it. The Croc teeth are from HC and came from @Troodon . The Mosasaur tooth was a throw in from a purchase through one of favorite dealers. It did not take us long to add some really cool pieces and I am looking forward to adding more. Next fall we will split the dinosaur program into two presentations and that will allow us to expand on the non-dinosaurs as well as the dinosaurs
- 2 replies
-
- 4
-
-
- cretaceous
- croc teeth
- (and 6 more)
-
I spent most of Friday at a local creek with expert friend.... We found some nice things. I got an intact goblin shark tooth about 2.4" long, and some fossil turtle bone. My kids had a great time sieving in the stream. Ammonite impressions in the mud are common; I wanted to to share the largest one I saw, as well as my largest goblin shark find. We saw some good wildlife; the kids caught a garter snake. My daughter saw a mysterious creature that jumped into the water. I took some pictures of the footprints.... a mink maybe? What do you think?
-
link A new genus and species of extinct groundshark, †Diprosopovenator hilperti, gen. et sp. nov. (Carcharhiniformes, †Pseudoscyliorhinidae, fam.nov.), from the Upper Cretaceous of Germany Sebastian Stumpf, Udo Scheer & Jürgen Kriwet Journal of Vertebrate Paleontology Article: e1593185 | Received 27 Nov 2018, Accepted 26 Feb 2019, Published online: 03 May 2019 outtake:
-
- 2
-
-
- (lagerstatt/good preservation)
- (pseudoscyliorhinus)
- (and 4 more)
-
Hello all, A friend of mine sent me these photos of a piece she found at the WM Browning fossil park in NE Mississippi. Without seeing the item, my best guess was a worn mosasaur vertebra. Any ideas? Thanks in advance! -Caleb
-
Found this bone fragment among shells and shark's teeth in North Texas... along the bank of Post Oak Creek, Sherman Texas. Please help my kids know what this may be. Much appreciated!!
-
Long time dream comes to fruition!
FossilDAWG posted a topic in Partners in Paleontology - Member Contributions to Science
Long ago, back in the late 1980s, I lived in British Columbia and had the opportunity to collect in the Late Cretaceous Nanaimo Group. I realized that many of the crabs and lobsters I was collecting were undescribed, so I made an effort to collect any material I came across. I tried to find a collaborator willing to help describe the material, but (for reasons I described elsewhere) that didn't work out, and I was encouraged to take on the writing myself. Since I had to focus on my own research career, which actually has nothing to do with paleontology, the project languished and over time most of the taxa were described independently by others, based on specimens collected by other people. Although I would have loved to contribute to the published record of the Nanaimo Group I became convinced that that would not happen. Then, about two years ago, I was corresponding with Torrey Nyborg (a fossil decapod expert well known to some Forum members @fossisle @MB @Al Dente) and found out that he was working on some new species of the crab genus Archaeopus from Vancouver Island and California. I sent him my material, one thing led to another, and the paper has just been published. I am very grateful that Torrey included me as a coauthor. I was also able to contribute the holotype of Archaeopus morenoensis (Figure 15 panel A, attached below), which is actually from California. So thanks to Torrey I feel my long-ago efforts paid off. Don
- 31 replies
-
- 37
-
-
- archaeopus
- california
- (and 5 more)
-
Dying to find a good crab claw. Found this little tiny thing....it sure looks like a crab claw but I have a sneaking suspicion it's just a very good mimic of limestone rock. Please help me confirm or contest. Thanks!!!
.thumb.JPG.51b23dbae426645e4aafedf3a0d1a09c.JPG)
.thumb.JPG.24a60d9be2d458cf077be2fc84cabdf4.JPG)
.thumb.JPG.a4712045d659b1fb64891a519200a1d4.JPG)
.thumb.JPG.e721b9c86a0c95850fe1b13402b037c8.JPG)
- 15 replies
-
- 1
-
-
- crab
- cretaceous
- (and 1 more)
-
As I was cataloging specimens collected at Lake Jacksboro I came across this sweet little fossil that I found there last February. The site is Pennsylvanian but this beautiful little oyster is NOT. And luckily I am experienced enough to recognize it was out of place. But not all collectors are... Please, please, please be careful and try not to drop stuff out of your pockets, bags or bins from previous collecting sites. Oh, and if anyone recognizes or remembers this little gem let me know. I’ll pop it in the mail to you. PS it is about 17mm wide
-
- 4
-
-
- contamination
- cretaceous
- (and 2 more)
.thumb.jpg.51c371f10936bbc883322324e44cc518.jpg)
.JPG.810cef30829e50831cf9e9f0b3f5d4dc.JPG)
.JPG.04d5e05d5d8424539040c610375ae29e.JPG)
.JPG.b2b4d07d9cdc9d8ea97dca20da9e812f.JPG)
.JPG.490e0669eed75dab54ea25525bba08c7.JPG)
