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Showing results for tags 'tumidocarcinus'.
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A few months ago, I came across this big crab concretion sticking out of the sand. It was my second largest of the day, but only by a mere 10kg! Still! 12kg aint too bad. Where I found it, was quite sandy, and another fossil hunter had been there before me, but fortunately he hugged the cliff face, there and back. I walked towards the ocean and spied some legs sticking out of the sand! I started this prep with my ZOIC chicago and rounded chisel tip. It removed 2kg of rock in two hours. Not the fastest, but it beats my old dremel by a long shot!
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I took a chance on this concretion. I think it paid off.
Doctor Mud posted a topic in Member Collections
I visited a new locality recently and spotted this concretion. I dont really split concretions these days unless there is a really good reason to do it. I prefer prospecting and looking for clues that something is inside. And - it’s hard work splitting these concretions Glad I rolled the dice on this one though. You just don’t get many Tumidocarcinus specimens with leg tips. Not a huge crab, but I like the small ones too. Should glue back together and prep nicely. Good separation on that carapace except for the usual trouble spot. That area near the front of the carapace is often sticky and fragile. A nightmare to prep sometimes. Just hope that left claw isn’t tucked under.- 14 replies
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Almost 40 hours of prep and then a bunch of editing and this is what I ended up with. Enjoy
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From the album: Fossil Crabs
A crab from New Zealand that I didnt have high hopes for and the more I worked on it the better it got!-
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Well I started my next project tonight, and compared to the last one, this one is so much fun (so far ). The rock is softer and it also peels off the shell beautifully. Things are going to get a bit more complicated I can see already as there is a thick layer of powdery calcite around the edges. I originally thought it was shell and I’d stripped off the shell the whole time But I checked with the scope and it’s calcite. Some before pictures. The concretion is 24 cm (9.5 inches) wide. The claws were already exposed like this, I found it wedged in between 2 rocks facing me like this! The big claw exposed section is 8 cm (3 inches) long, so the big claw will be at least 16 cm (6 inches long)!
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I have my first good scribe but have been so busy I've only really worked on my "sanity crab" Anyway - to all you beginners - dont do what I did - just commit. I started with an electric engraver, then I got a CP 710 engraver and now I have a 9361 clone - It ROCKS! Here is my new victim... I honestly thought it would fight me but I was surprised... I'll give it a few more hours...
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How big do fossil crabs get? Some large Tumidos
Doctor Mud posted a topic in General Fossil Discussion
Having found my biggest crab yet, I was very curious about how big the Tumidocarcinus giganteus gets. It sure lives up to the species name giganteus! @Dave (POM) Allen has found a massive claw, the biggest I’ve seen. Could be from a huge crab too, but I’ve seen some really massive claws that are way out of proportion with the crab. I’ll have to dig out the photo from my computer when I’m home, but I have an amazing example of this. The Canterbury museum has the biggest specimen - complete crab I’ve seen There it is near some normal sized (but still much larger than Washington) crabs. I didn’t have any measurements on it, but when I visited Al Mannering to do some prep he had a replica and I asked if I could take some photos for reference. Check it out! Andrew Fear who is another regular Tumido collector has found this guy Don’t have any scale on it, but it is impressive! Love to see any other large examples, or even the other end of the spectrum like @RJB tiny Tim the Tumido- 18 replies
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Newly prepped Tumidocarcinus Giganteus crab, collected by myself
mamlambo posted a topic in Member Collections
I found a really good concretion a few months ago here in New Zealand and didn't want to try prep it myself as I am still very much a beginner. Luckily, @DLB was willing to help me out and did an amazing prep job - both sides! It's by far the best crab in my collection, and very well travelled after it's 24 000km (15 000mi) flight It measures 16cm (6.25") across. I made a video of me finding it, sending it off, and opening it which can be found here: https://www.youtube.com/watch?v=V4cqpVKsOO0 Thanks for the amazing prep job @DLB!- 13 replies
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From the album: Fossil Crabs
My most difficult crab prep to date!!!- 3 comments