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Showing results for tags 'redwall limestone'.
Found 21 results
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Hello again, I find these crinoid parts (I think) all the time and just want another opinion on what it is. I think number 1 is crinoid pinnules. Number two is the first and only one of these I've found so far here.(Mississippian redwall limestone, Mooney member). It's about 1/4 inch long and I'm guessing perhaps an echinoid spine? I appreciate any input you guys might offer. Thank you Bob
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Hello again, I found these 2 rocks this morning on my property. Redwall limestone, Mooney falls member, Arizona, Mississippian. I think the tiny branch looking thing might be bryozoan and I don't know if the bumpy rock is anything at all. What do you guys think, are these just weathered rocks?
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So I've been collecting the rocks with obvious fossils on my property to make something, like a fossil garden or rock wall along the walkway. I plucked this out of the ground yesterday, rinsed it off and was about to toss it into the pile when I saw that trilobite. All the others I've found are just little white ones so I was very excited to see the condition of this one. If it wasn't for the obvious injury to the axial lobe I think I could've revived him.
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Hello and thanks for looking. I found these on my property in NW Arizona. It's Mississippian, Mooney falls member of the redwall limestone. I found the little pill like fossil a few days ago and then the column today. These are not like the tons of Crinoid fossils I've found nearby and I can't seem to find anything that matches online. I'm sure some of you will know immediately what it is. Please help if you have and ideas. Thanks
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Here is a cool photo of a silicified Michelinia coral that I was trying to extricate from Redwall Limestone with acid. It reminded me of my proposed TFF slogan/motto: "we place fossils on pedestals".
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I found this long exterior mold fossil in Mississippian Redwall Formation chert from Gila County, Arizona. I think that it might be the central support for an Archimedes sp. bryozoan. Two sources say that they have not been reported from the Redwall Formation even though they are reported from other Mississippian formations in Arizona. What do members think the fossil might be? @Arizona Chris
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Arizona, Mississippian, Redwall limestone, Mooney member. Hello, hope everyone had a good Christmas. About a week ago I found the first one of these two. Flipped the rock over and the small glossy area really stood out. First one I've seen. Then today I found another, about the same size, roughly 3/8". I have no idea what this could be, any thoughts would be appreciated. @Arizona Chris have you run across this?
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Arizona, Redwall limestone, Mooney member. I've found several examples of what look like plants but because they are around crinoids I'm thinking possibly crinoid arms. Anyone know what these are? Thanks
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NW Arizona, Redwall limestone, Mooney Falls member. Hello, I found an area with lots of crinoid parts. There were also a few of these dimpled rocks and some with holes all the way through, some tapered. Any ideas what these are? Thanks
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Arizona, redwall limestone, Mooney member, Mississippian. I've found several of these and I'm just not sure what's going on here. Looks like fossilized worms eating away at the brachiopod but now I'm thinking the tubular structures are fossilized guts. Any thoughts or other possibilities would be appreciated, thank you.
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NW Arizona, Mississippian, redwall limestone, Mooney member. I need your help determining what if any, of these examples are Stromatolites. From what I've read they should be all around me but nothing on my property seems to match pictures online. I numbered the three smaller rocks and the fourth was much larger and outside. Are any of these layered rocks Stromatolites? Thank you and sorry about the sideways view, top and bottom cut off when it was rotated.
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There isn't much showing, but what is seems similar to my other trilobite found in same area. Any thoughts? Second picture includes previous more complete find as comparison
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I'm not sure what this is, haven't seen it before. This was a few feet from where I found a trilobite last week and was looking for more when I turned this over. Any ideas? @Arizona Chris
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Near grand canyon caverns, Arizona. I just found this, looks to me to be a gastropod fossil, or possibly two?
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From the album: Mississippian Redwall Limestone Fossils, Arizona
Any turriculate high spired gastropod in the Mississippian Redwall Limestone is very rare! We have found only a small handful of them over the years in searching through countless thousands of pounds of rock in most parts of northern Arizona. Strangely, coiled gastropods such as Straparollus are pretty commonly found. This individual would have been about five inches long perhaps, and we see here three whirls in an outside mold in the brownish cherts in the Thunder Springs member of the Redwall. -
From the album: Mississippian Redwall Limestone Fossils, Arizona
Actinocrinitidae calyx - internal cast, this is the central head of a sea lily. The top cup, or "tegmen" is faceted, and the arms which attach in pairs around the periphery would have been attached to the ends of the forked tubes coming up from the bottom basal cup. Where my thumb is touching is the attachment for the long stem.-
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Quartz Drusy coated Bellerophon Gastropod
Arizona Chris posted a gallery image in Member Collections
From the album: Mississippian Redwall Limestone Fossils, Arizona
This one inch sized specimen was found in a creek bed filled with zebra jasper formed in the Redwall Limestone - Mooney Falls Member. It is an internal cast and is completely coated with microscopic drusy quartz crystals that sparkle in the Sun like a thousand diamonds. -
From the album: Mississippian Redwall Limestone Fossils, Arizona
Large one inch sized Orophocrinus Saltensis Blastoid top half. You can just make out the ambulacral feeding grooves inside its five fold symmetrical body.-
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From the album: Mississippian Redwall Limestone Fossils, Arizona
5x close up of the ambulacral feeding grooves. The ribs have tiny cross ribbing used to channel the flow of food to the animals mouth in the center, where the five point star is located. -
Syringopora sp. from the Redwall Limestone
Arizona Chris posted a gallery image in Member Collections
From the album: Mississippian Redwall Limestone Fossils, Arizona
Here is a nice cross cut example of Syringopora, the most common coral you will find in the Redwall Limestone, Mooney Falls member - On the Mogollon Rim north of Payson. This is a pink chert mold, and the orginal coral has dissolved away leaving very fine details in the chert. This is a fine example of a Tabulate coral, the animal resided in the tops of each tube in a calice, and filtered food out of the plankton. -
Phillipsia peroccidens (Old designation Phillipsia Tuberculata)
Arizona Chris posted a gallery image in Member Collections
From the album: Mississippian Redwall Limestone Fossils, Arizona
Found both in the Mooney Falls and Thunder Springs members of the Redwall Limestone on the Mogollon Rim far south of the Grand Canyon, this is the most common trilobite. While I know of no one that has found a totally complete specimen, we have all the molted parts available for study. This specimen, collected off Highway 260 East of Payson is in a reddish fossiliferous chert that is packed with fossils. Typical of the Thunder Springs member here.
