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Showing results for tags 'holaster'.
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I finally went over to a slow-moving construction site that has been in process for weeks, if not longer. With little hope due to a lot of bigger rocks being hauled off, I walked along the elevated slopes of plowed dirt and smaller rocks that remained. To my surprise, I found some nice Fort Worth formation echinoids (holaster and macraster sp) and some small ammonites of the mortoniceras sp. I also found a very well fed nautiloid, I’m nicknaming Fat Boy Lloyd (you know, respectfully like he’s a rapper). It weighed in at 5 lb 10 ounces! I thinks it’s paracymatoceras species given the visible lines that are very close together. I also found what I think is a nicely ornate trigonia clam. Tarrant county, Texas.
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I went to my favorite Fort Worth formation spot near my house (Johnson County) and came home with a nice Christmas present to myself, 6 macraster echinoids, 2 of which are nearly perfect and are now amongst the best I have. They’re also huge, I am naming one Absolute Unit and the other The Rock. Also a rough looking holaster and a bunch of smaller mortoniceras ammonites. Check out the curvy fold in one of them. Poor dude went flaccid right when he hit the bottom of the ocean. Lol..I decided to flip a huge rock I’ve walked by many times (natural for me as a snake chaser) and I’m glad I did, I found a robust 2 inch wide x 8 inch diameter mortoniceras attached within the rock. It’s beyond my ability to easily free it, but I will get it done with some help. Nice calcite on the outside where I broke away some matrix. one of the morts is a mess (the one with the green algae on one side), it’s beautiful but I’ll have to make a decision about leaving it as is or cutting it to the point where it’s complete on both sides.
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I probably like echinoids more than some people do..I found these in Fort Worth formation, Grayson, and strangely one of them came from a creek at the woodbine/eagleford border in arlington, but I’m told it’s not likely to have originated from that formation. I have a crate full of little echinoids not shown here, these are my biggest ones. One of my best macrasters seems to have little spines stuck to the bottom. Maybe that’s something else?
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Echinoid Holaster simplex Georgetown Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils: Echinoids
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From the album: Haute normandie - July 2013
Micraster from Antifer Cape - cenomanian chalk -
From the album: Vaches Noires - may 2013
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From the album: Vaches Noires - may 2013
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From the album: Vaches Noires - may 2013
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From the album: Vaches Noires - may 2013
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