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Showing results for tags 'Crab'.
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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Crab Dakoticancer australis Corsicana Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils: Crustaceans
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Crab Dakoticancer australis Corsicana Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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From the album: Texas Cretaceous Fossils: Crustaceans
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Lyme Regis crustacean fossil- Which stratum would this originate from?
Paleoworld-101 posted a topic in Questions & Answers
This fossil crustacean was collected in England on the foreshore between Lyme Regis and Charmouth, amongst the algae-covered large boulders that are exposed at low tide. It looks to be in some kind of phosphatic nodule. The cream-colour of the matrix is quite unlike the dark Jurassic rocks that make this region famous. I was thinking it is unlikely to be from the Jurassic layers, and probably originates from the overlying Cretaceous sequences higher up in the cliffs? Both Gault Clay and Upper Greensand (Albian in age) unconformably sit above the Jurassic beds. Does anyone know which of these deposits are known to produce crustacean specimens with this type of preservation and lithology in the Lyme Regis area? Thanks for any input!
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From the album: Pawpaw Formation
Cretacoranina punctata, Tarrant Co. Albian, Cretaceous Apr, 2023 Cretacoranina is a type of "frog crab" which are still around today and are known to bury under the sand with their modified claws. They keep their eyes above the sand and ambush prey. Unlike most other crabs, frog crabs do not have their abdomen tucked beneath their cephalothorax. The frog crab fossil record starts in the Albian which means this specimen is very close to their supposed origin! I actually found the posterior end of this crab a couple of months ago. I knew it was from this species which is a bit rare so I held on to it. Then I came across the anterior portion earlier this week and was excited to find that the pieces fit together perfectly. -
Hey everyone, new here, but hoping I’ve come to the right place! My family just got back from tooth hunting on shark tooth island and found these too and wondered how we could confirm what they are and if they’re just ordinary or could be extraordinary!
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Found this in Simi Valley, pretty sure it’s a fossil crab, can anyone give me some more info? Possible species etc.
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From the album: Pawpaw Formation
Steorrosia reidi, Tarrant Co. Albian, Cretaceous Jan, 2023 Surprisingly rare amongst my decapod finds. This one was found broken in half. It's my best specimen as of yet. Distinguished by its unique style of granulation on the carapace. -
I'm hoping someone will recognise this growth on this fossil crab I am prepping, is it animal or mineral? It's mid-Miocene from New Zealand. The concretion is 15cm wide. Thanks!
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Dipping my toe in to micro air abrasion prep with a tricky fossil crab
mamlambo posted a topic in Fossil Preparation
I've got some experience with air scribes and acid (acetic) but haven't used air abrasion much. I recently got a new micro air abrasion unit and tried it out on a sticky crab that had a growth on it with some good results using dolomite. Before photo: After photo (work in progress, about 25 of prep time): One of the challenges I have is that is it really hard to find media between 50 and 100 microns here in New Zealand and shipping is quite expensive. I can sift my own dolomite, it just takes ages! I wonder if anyone has any tips for finding iron powder or is there an easy way to make your own? Here's a video of the unit I am using as well as my setup, any help / suggestions welcomed!
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I went fossil hunting yesterday. It is an activity that brings a smile and renews my soul. Sometimes I like the solitude of hunting alone ( my 1st 18 months I only hunted alone), but this day I was blessed with good friends and I could tell stories, share their cut up fruit and trail mix, and marvel on what we were finding. These are mostly my treasures.. None of us found large quantities, I had less than 50 fossils in my collection bag... but what we did find was unique and/or had some quality aspects... A tiger , 32 mm across the root. A Dusky or Bull, never sure which A fishjaw and a Tree root.... and below, a rare find for me ... note it tried to break,. it will not get the chance again A dolphin tooth found late... not one that I could name. Friends also found a Dolphin tooth earlier, Slightly larger. When this rolled into my sieve, I knew it was familiar, I rolled it over and over, but I was not expecting it , could not ID. My friends did. Menippe was a Genus of Stone crabs back in the Florida Pliocene. I wonder if this was a late arrival. I liked the quality of the fossils... look at the details of this crab claw... I was picking up a bunch of (broken) bones that I only slightly recognize with the intention of posting some of them but maybe in future posts. I do have a femur that I am curious about... I always search TFF for helpful threads: http://www.thefossilforum.com/index.php?/topic/102805-peace-river-femur/ It has this comparison photo.... For comparisons, I possess a SaberCat femur at 13 inches if complete. Here's the key: 1-Horse femur, 2-Sabertooth Cat femur, 3-Human Adult Female Femur, 4-Komodo Femur, 5-Harpy Eagle Femur, 6-Kiwi Femur, 7-Platypus Femur, 8-Spider Monkey Femur, 9-Rhesus Macaque Femur, 10-Vervet femur, 11-Goliath Frog Femur, 12-Flying Lemur Femur. The bone seems not sufficiently robust for tapir, horse, llama, cow,, so maybe deer, coyote, bobcat.... Here is a mule deer for comparison. I think total length of Mule deer femur would be 11-12 inches. Any suggestions will be followed... Thanks for reading...
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From the album: 1925 Body & Trace Fossil Collection - Ocean
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From the album: 1925 Body & Trace Fossil Collection - Ocean
2.83 mm long shell-
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Would like to label the species if possible, I'm hoping the antennae help? Found in Washington (the beautiful one) 260238205_Crab2_83mm.tif Antennae.tif
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Would anyone be able to tell me if I am looking at a fossilised crab? If so how old do you think it would be? thanks in advanced!
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Wondering if anyone could help get species identification for these 4 fossils. Thanks for reading
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Hello all, After a few shrimp I finally decided to try giving a crab nodule a go. This is my first time working on a Washington Pulalius vulgaris and so far I am pretty happy with my progress, It hasn't been too sticky and while it's more disarticulated then I expected it seems to all be there. The nodule before prep - this side turned out to be the bottom so I quickly switched to the other After about an hour, I managed not to ding up the carapace too much which I am thrilled about. I am now bout 4 hours in. There are 4 legs on the righthand side and I've managed to expose them only losing a part of the bottommost one. I'm particularly happy with how the claw has come out. The left-hand side of the crab however is a bigger challenge, the one leg I have exposed so far is hollow and you can see the two holes which I think indicate the left arm is hollow also. To prepare them, I am thinking of injecting some thin resin into the voids in the hopes that will give the shell some internal stability. If anyone has any other ideas or experience dealing with voids I'd love to hear it. I am excited to get back to prepping this one.
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