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Showing results for tags 'heliobatis'.
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Hello all! This summer I took my yearly trip to Wyoming, and with my luck I again came back with several extremely incredible fossils! I found many less fish this time around, but I did find several more rare ones! I probably only found around 50 fish in the 3 days I was there. I found 8 Phareodus, including 2 juveniles! I found only 1 Mioplosus this year, the fish seems to be avoiding me sadly... I found 3 Priscacara, including a very large Priscacara serrata! I found an interesting Hypsiprisca preserved beautifully on an algea layer, also found several more Amia scales, but one of my favorite finds was a giant Amia tooth! (Though I suspect it to be gar) they said it was the largest one they had ever seen, and it is an excellent place holder for a future complete Amia! I also found dozens of shells! The shells especially the snail shells are considered to be one of the rarest components of the fauna, so it was very odd finding over a dozen! Including 4 mass mortality plates which each have dozens of shells on them! I also ended up finding an incrediblely incrediblely rare piece of bamboo, they told me that bamboo is rarer than a dozen stingrays! Speaking of stingrays, I FOUND MY FIRST ONE! A large Heliobatis that I split out almost perfectly! Speaking of rare finds, my absolute favorite find of this trip came as a surprise! Early in the day I found a very strange algea layer with several gastropod beaks, and I was excited as I thought I had found a Crossopholis. After having my heart broken I sulked over to a new pile of rocks and one my first split I found something very strange, a plate of small serrated scales! I did it! I found myself a paddlefish it's disarcticulated, but it still has a fin beautifully preserved! It's hard to describe the feeling of finding a Paddlefish and a Stingray the same day! I will be posting pictures soon! I will also be submitting my stingray whenever the prep work is finished!
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From the album: Vertebrates
Heliobatis radians MARSH, 1877 Eocene Ypresian Green River Formation Kemmerer Warfield Quarry Wyoming USA Length 45cm / 18"- 1 comment
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From the album: Chondrichthyes
This specimen has a funny story behind it. The post office mishandled the package so this guy came out of the box broken. Thankfully the very helpful folks here at TFF were able to help me piece him back together. Ok now on to the specimen itself. This is a Heliobatis radians from the Green River Formation: Wyoming, USA. The diameter of the two pectoral fins is 8.5 inches which is fairly big for this species. And the presence of claspers on the pelvic fins make this stingray a male. All of these observations form the conclusion that this is an adult male Heliobatis. The preservation of this stingray is fantastic. A huge majority of the small bones that make up the pectoral fins are preserved. Under magnification one can see the cell structure of the cartilage. Also, the very best part: there is absolutely no restoration! The only work done to this fossil was gluing it back together with cyanoacrylate (super glue). Unfortunately the tail is missing, but that does not detract from this awesome Heliobatis radians. I will post some close up pictures once I get one of those camera loupes you attach to your cell phone camera.- 3 comments
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