Search the Community
Showing results for tags 'phosphatic'.
-
Phosphatic Concretions Of The Pennsylvanian Muncie Creek Shale
Missourian posted a topic in Member Collections
As requested, here are some fossils found in concretions from the Pennsylvanian Muncie Creek Shale.... Two conularids and some chitin, possibly from a crustacean: Crustaceans are occasionally found: The phyllocarid shrimp Concavicaris is the most common. The two nodules on the left contain its spiky telson. At top and lower right, its carapace can be seen. The nodule in the middle with the fly-like form may be a shrimp tail. The nodule in the upper right appears to contain chitin. There appears to be a curled-up shrimp in there, but I'm not sure. Ammonoids are found too. The square-edged Proudenites seems to be the most common: A suture pattern is visible in the one at the bottom. Fish material is quite common: Most are bones and spines that are hard to id. Occasionally, one is recognizable. The mandible on the left, for instance. I call these 'chicken bones': This distinctive form has bilateral symmetry. I'm not sure where it would fit into a fish. A piece of another 'chicken bone', and a scale: And finally, the coprolites: Bones and scales pass straight through a fish. That big bone on the right must have been painful....- 106 replies
-
- 1
-
- concretions
- muncie creek
-
(and 1 more)
Tagged with:
-
Phosphatic concretion, Muncie Creek Shale, Kasimovian/Missourian Stage, Pennsylvanian Kansas City metro, KS/MO, USA I'm pretty sure this is a mollusk. The fine striations remind me of those on some Poterioceras: Any ideas?
- 5 replies
-
- 2
-
- mollusk
- muncie creek
-
(and 3 more)
Tagged with:
-
From the album: Marine reptiles and mammals
Unidentified Cretaceous crocodile species, suggested by multiple people, to appear to be a Dyrosaurus, came from the second phosphatic layer of a phosphate mine(what a shocker!)around the suburbs of Khouribga, Morocco. Original teeth, not replacements. Have gone through and cleaned up the base of some of the ones that had some sand around them.- 2 comments
-
- africa
- cretaceous
- (and 12 more)
-
From the album: Marine reptiles and mammals
Side view of croc jaw.-
- africa
- cretaceous
- (and 13 more)
-
I found this recently in an Early Mississippian lag deposit amongst several other fossils, including shark's teeth, bones of unidentified critters, and phosphatized inverts. From my observations, I believe that the site represents an estuarine setting. I don't find any plant material here, but that doesn't mean that terrestrial critters might not show up. I have my own opinions about the piece, but let me know what you think! Early Mississippian Cumberland Plateau Size: approximately 1cm across
-
Very Unusual Megalodon In Phosphate Matrix Specimen - I Need Some Advice
Fossil_Rocks posted a topic in Fossil Preparation
This tooth in matrix has been sitting on a local diver's desk for about three years, under a dust cover, and has remained very stable. We think the matrix is essentially a phosphatic nodule. It's basically a piece of the ACE River Basin river bottom, and obviously it's an amazing specimen. I wanted to prep. it using a hardener, but I've never prepped any fossils before, and wasn't sure which product that I should use. I've heard of Butvar, of course and know people use it on bone, but this isn't bone, it's more mineral. Should I dip, or brush? It would seem a lot cheaper to brush it on. I'd also like something that would be water proof, afterwards. Any thoughts or ideas would be greatly appreciated. I'd also like some direction on a reputable seller of the product. Any folks here in that biz? If you are, then I'd rather throw the biz to a member, but I will need the product over nighted to me. I want to do the job myself, and I won't be doing a lot of prep. work, so I don't need a ton of the stuff, just enough for this one piece, which measure's about 10" in length. Here's a list of products that are advertised on a site called PaleoPortal Fossil Preparation. - http://preparation.paleo.amnh.org/47/adhesives-and-consolidants Solution adhesives which set by evaporation of a solvent and include:Paraloid B-72 (ethyl methacrylate co-polymer, formerly called Acryloid) Butvar B-76 (polyvinyl butyral, or PVB) Butvar B-98 (polyvinyl butyral or PVB) McGean B-15 (polyvinyl acetate or PVAC, formerly called Vinac B-15) “White glue” dispersions and emulsions (e.g. Elmers, Rhoplex, Lascaux) - Not Waterproof, so not my choice Thanks in Advance, guys ...- 22 replies
-
- ACE River Basin
- butvar
-
(and 8 more)
Tagged with: