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Showing results for tags 'ammonite'.
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Ammonite Quenstedtoceras sp Jurassic Coast UK
JamieLynn posted a gallery image in Member Collections
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From the album: Jurassic Coast UK Oxford Clay Formation
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Ammonite Kosmoceras spinosum Jurassic Coast UK
JamieLynn posted a gallery image in Member Collections
From the album: Jurassic Coast UK Oxford Clay Formation
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A new find in Tarrant County TX and a question…
Shaun-DFW Fossils posted a topic in Fossil Hunting Trips
I had to return some clothes to the shopping mall yesterday. Rather, I volunteered to return them with a spot in mind that is right next to the mall where I found some big boy ammonites, eopachydiscus upwards of 15-19inches. The rain uncovered a nice one that was in loose soil. For some reason, many of the ammonites in this creek are really worn down in the center. How do you all handle removing matrix if you’re concerned about leaving a hole in the middle? I’m thinking I can simply “file” down the matrix until it looks like it’s as far as I can go using some sort of air abrasive tool? This one is 15.5 inches and I like the symmetrical shape and visible ridges. Many eop. I find are smooth around the outside without the wavy appearance. Different species?
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At two different times this year (but at the same basic location), I found sense interesting ammonites that both contained other ammonites inside. This is near Johnson/Tarrant County borders in North Texas. The first shown is an eopachydiscus in fairly rough shape that has a hamite embedded. The second is a mortoniceras with two extremely tiny mortoniceras ammonites visible inside. I’m guessing the smaller ones settled on the ocean floor after the larger ones and actually ended up inside those larger ammonites? I am not an expert on these so I appreciate your input!
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First of all, amazing forum and a great community. All my life I've had an interest in fossils but never collected any apart from the odd interesting rock I've found on the beach. Recently returned home from a trip to the Yorkshire coast and had a couple of early afternoons dedicated to fossil hunting. We found lots of random bits, plenty of bivalves and a few ammonite nodules. I've bought myself a Dremel 290 so I can try to liberate them from their long slumber. Quite a thrill knowing that you're the first living creature to see these things in millions of years. Time to trawl through all of the guides I can on here before I attempt any sort of preparation.
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Today was my first chance to get a couple of hours outside since we had a heavy rain. I went to a favorite local creek and walked the exact same paths I took a few weeks ago, but with the algae getting washed away and more erosion, I had my hands full. My 3rd shoe clam since I started hunting less than a year ago, my biggest holaster, and some nice mortoniceras ammonites. I believe the formation is Fort Worth formation but it may be Grayson/duck creek, it’s all close by. Johnson county, TX
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I found this Ammonite a couple weeks ago and I wanted to prep it. I dont know how to prep the inner whorls and it seems kinda hard. Im Using a Dremel 290 (factory tip bc the Zoic tips doesn't arrive yet) Any opinion or tip will be good welcome!
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From the album: Russian Lower/Middle Volgian ammonites
Ulyanovsk Oblast, Undory, Volga shore. Ep. nikitini zone. 40+ cm. Possibly Dorsoplanites rosanovi -
Hello, I found this rock in an ephemeral stream bed with what I think is an ammonite and crinoid head in the same rock. I'm somewhat familiar with the local geology and fossils but not 100% sure. It was found in Columbia MO in what should be part of the Osagean series of the Mississippian. Most common rocks in the area are limestone, chert, and dolostone; crinoids are extremely common. I'm a lot less confident on what I think is a mold of a crinoid head (second fossil pictured). I just hope it's not a chert nodule. Anyways I would love to hear other opinions to confirm this. Thanks!!!!
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Hoploscaphites nodosus. 72.94 +- 0.45 million years old. Cretaceous period, Campanian age.
Samuel M posted a topic in Paleo Re-creations
Linked is a 3D model of a nearly perfect Hoploscaphites nodosus ammonite. Models can be viewed using this website: Online 3D Viewer or through other software. This is a 3D model of an actual fossil and is not a "recreation", but since my last upload was moved here this is where I will upload the rest of my 3D scans. If anyone else has any good ammonite or inoceramus finds from Colorado please share them with me and tell me a little about them. I've been reading some of Bill Cobban's papers about the invertebrate paleontology of Colorado and I've gotten really interested in what can be found around here. Thanks! -Sam 1195980117_Hoploscaphitesnodosus-Kprl(1)-1.glb
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From the album: Russian Lower/Middle Volgian ammonites
Tatarstan rep., Tetyushi, virgatus zone. D 15 cm -
I feel like I finally hit pay dirt today, my best woodbine ammonite day in my short time looking. I think the smallest one (2.5”) might be a different species? It has 4 little bumps across the top, I notice the rest have fewer. I was pumped to find these! I started out a bit too far in the woodbine, but I grabbed some small pet wood pieces, at least. Far eastern Tarrant county TX
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While snail collecting in part of the Britton formation I ran across this amongst the bits and pieces of ammonites and some cruddy crabs. Not much to go on but I'm thinking part of a scaphite from the nodosus group maybe?
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These woodbine ammonites are NOT easy to find, but I finally had a lucky murky underwater protrusion grab that proved to be a larger one than I found last time, this one about 3.25” across. I also found some great (for me) chunks of fossilized wood and an entire trunk I’ll have to find some way of retrieving later. The biggest piece of wood is over 9 inches and glistens in the light because of the crystallization, which doesn’t show up well in photos. I found a Macraster echinoid too, which seems out of place, I never find those at the Eagleford/Woodbine border. Is this out of place or do they occur here? I find most of them in Grayson or Fort Worth formations
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From the album: Russian Upper Volgian ammonites
A macroconch ammo from Undory, Ulyanovsk oblast. Fulgens ammonite zone, 11 cm -
It’s a sad day. Years ago, I collected a microconch and macroconch of Scaphites so. from the Late Cretaceous Arcadia Park Formation in Dallas, TX that were preserved in pyrite. I’ve collected dozens of pyritized ammonites from this particular site and all have been stable. These ammonites appeared to be stable for about 15 years until one day the pyrite decay started. I noticed it a couple days ago and soaked these specimens in iron out to try to stop the decay. Alas, my attempts were unsuccessful and both specimens crumbled to powder. Beware pyrite, even if you think it’s ok…
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From the album: Russian Lower Kimmeridgian ammonites
A rare Taramelliceras ammonite. Tatarstan, Rasenia cymodoce zone. Pyrite -
From the album: Russian Lower Kimmeridgian ammonites
A big Cardioceratidae ammonite. Tatarstan, Rasenia cymodoce zone. Pyrite -
From the album: Russian Lower Kimmeridgian ammonites
3 Crussoliceras ammonites. Tatarstan, Rasenia cymodoce zone. Pyrite -
From the album: Russian Lower Kimmeridgian ammonites
A small Cardioceratidae ammonite. Tatarstan, Rasenia cymodoce zone. Pyrite -
Is this the inner whirl of an ammonite or something else? This was found in Northern Minnesota Coleraine Formation. Sorry limited photos as it was donated to the Hill Annex (mine) Palaeontology Project
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I got my dremel and I want to prep the Ammonite in the picture. Can someone give me some advice or tip to use the tool and for that Ammonite? I will practice first with some Ammonite fragments. The matrix is kinda soft and weak.
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This was found last weekend in the Mounds Reef area and the Ammonite species is Placenticeras pseudoplacenta. The concretion had already been opened by a previous person or less likely weathered out naturally. Anyway this was all there was and I have tuned my eyes for this shape since finding 4-5 partials, one intact inside the concretion and another that had been passed over for looking like a "boring" smooth clamshell to someone else. Is the best way to reveal the sutures the same as polishing rocks or Damascus steel? Start coarse and up the grit until the shine is mirror like? Or use a chemical like muriatic acid? Two different angles of lighting. One pass with 120 grit, skipped to 1,000 grit, then Dremeled some red rouge for a super quick, cheater reveal. They were unseen before hand.
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I dont know if this Ammonite is Prolyelliceras Ulrichi or Peruvianum
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