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Showing results for tags 'planus'.
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Sharktooth Hill Trip Report Part 1 – building the sifting table Hi everyone, After my first trip to Sharktooth Hill in June, I was hooked. I immediately started making plans to return and, this time I’d come better prepared. This forum has provided an amazing source of ideas and helpful people and inspired me to build a sifting table for my next trip to STH. A huge thanks to those who have helped me by answering questions, providing pictures and ideas, and helping me troubleshoot. I gathered as much info as I could and then tried to combine all the best ideas into one contraption to fit my needs. I’m excited to try this beast out next week! It’s big! The screen is 37.5” x 21” and the table stands about 4 feet tall but I will lower it if the height proves too high to load easily. I don’t want to sacrifice “wobbly-ness” though, because I’m hoping that’s going to do a lot of the sifting work for me. Plus, my son and I are 6’5” and 6’4” so a tall table should be ok. I used SCH 40 PVC and the 2 rectangular bases are glued while the 4 legs are removable to allow for compact storage/transport. In limited testing everything stayed together but I’ll bring some PVC glue with me in case I need to solidify it in the field. I'll also bring my PVC cutter for “disassembly” for the way home if need be. The bottom tier is ¼” mesh and has 6 “T” brackets to make sure it stays on top of the PVC frame. I bolted on a handle to allow it to be shaken one- or two-handed. There are no pointy parts on the inside (trying to avoid bleeding as much as I did on my last visit to STH). The top tier is ½” mesh and sits inside the bottom tier. Corner braces in the bottom tier (see above) allow the upper tier to sit low enough that it won’t dislodge but high enough that the contents can move freely across the bottom mesh. Initially I was disappointed that the large size and my inability to “tighten” that mesh caused it to sag noticeably once it was loaded up with soil. I remedied this with the addition of an adjustable bracket along the midpoint. But then when I put the top tier inside the bottom tier I realized I’d created a teeter-totter (doh!) and had to chisel out a groove on each side to allow it to fit in there. I’m very excited to go give it a try and I hope you all find this pre-trip report interesting. I’m happy to answer any questions and/or accept suggestions for improvement. And thanks again to all the helpful people on this forum whose previous pictures, design notes, and conversations encouraged me to attempt this (and make this post). I’ll send a follow up trip report after I get home. Cheers!
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- ernst quarry
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Looking for advice about shark tooth hill! TIA
PrehistoricWonders posted a topic in Questions & Answers
Hey everyone! Going to STH somewhat soon, I plan on going to Ernst quarries(or if anyone has any other sites they’d recommend), and was wondering if there were any tips anyone could give me, since This will be my first time. Also, are there safety instructions they give you when you get there?- 2 replies
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- ca
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Carcharodon hastalis - Chile
BellamyBlake posted a topic in Is It Real? How to Recognize Fossil Fabrications
I have here an alleged Carcharodon hastalis from Chile. It is 1.85" long and 1.12" wide. After receiving the tooth, it looked a lot more like Isurus planus to me. The other party insists it's Carcharodon hastalis. At the very least, they insist it comes from Chile. To the best of my knowledge, Isurus planus isn't found in Chile. I've never heard of it anyway. Two questions, then. Is this Hastalis or Planus? And if it is Planus, might it be Chilean? Thank you, Bellamy -
From the album: Cenozoic Sharks
Colorful Cosmopolitodus planus from Bakersfield, California-
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- california
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From the album: Cenozoic Sharks
Colorful Bakersfield, California Cosmopolitodus planus-
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- california
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What is the largest planus you have seen. I have 8 over 2 inches. My largest is 2.24 inches. Here is the photo.
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Hello, Going through some teeth from Sharktooth Hill (Bakersfield) I found one tooth among my "C. planus" teeth that didn't look like the others. I'm wondering if it is natural variation, from a different part of the jaw, or from another species altogether. It has the characteristic curve of a C. planus upper, but is quite a bit narrower than all the others I collected. The pics attached show a "typical" C. planus on the left and the tooth in question on the right. Thanks!
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I have this planus tooth with a bonus tooth stuck in the root matrix. Was wondering if anyone could ID the smaller tooth? thanks! R~