Search the Community
Showing results for tags 'carboniferous;'.
-
Hi! Me and @Tales From the Shale are actively thinking of going on a fossil hunting trip in Alton Illinois (right by St. Louis, Missouri) this week to analyze the Mississippian period St. Louis limestone and I'm wondering if anyone else has gone down there? https://www.mindat.org/feature-4232679.html We're specifically looking for fossils of the Meramac group and though we have a quarry or two, we're thinking of also checking out any road cuts in the area. I'm wondering before we go on the fossil hunt (likely this Saturday), could anyone offer some info on any good road cuts in the Alton area as well as quarries and if there are also a descent amount of fossils in the Spergen limestone too?
-
Taxonomy from Lowney 1980. Diagnosis from Lowney 1980, p. 949: "The skull roof is usually ornamented faintly at the lateral borders of the dermopterotics and frontals; the center of the skull roof appears smooth. The maxilla narrows under the orbit and tapers sharply at the anterior end (Text-fig. 3; PI. 2, fig. 4). The nasals are Y-shaped, with a long posterior process. The suboperculum is equal to or larger than the operculum. The lateral line scales remain tall and serrate all the way to the caudal (P1. 1, fig. 5). There are often a few vertebral centra visible anteriorly (Text-fig. 3B). The position of fins is as follows: dorsal-15, anal13, pelvic-6, caudal-21. The depth of the lateral line scales is three and one half times the width." Identified 2015 by TFF member dshamilla. Line drawing from Lowney 1980, p. 943: Microhaplolepis serrata, scale = 2 mm. References: Newberry, J.S. (1856) Description of several new genera and species of fossil fishes, from the Carboniferous strata of Ohio. Proceedings of the Academy of Natural Sciences of Philadelphia 8: 96–100. Westoll, T. S. (1944) The Haplolepidae, a new family of late Carboniferous bony fishes : a study in taxonomy and evolution. Bulletin of the AMNH ; v. 83, article 1. Lowney, K. (1980) A Revision of the Family Haplolepidae (Actinopterygii, Paleonisciformes) from Linton, Ohio ( Westphalian D, Pennsylvanian). Journal of Paleontology, Vol. 54, No. 5, pp. 942-953. Hook, Robert W and Ferm, J. C. (1985) A depositional model for the Linton tetrapod assemblage (Westphalian D, Upper Carboniferous) and its paleoenvironmental significance. Phil. Trans. R. Soc. Lond. B 311, 101-109. Hook Robert W. and Baird, Donald (1986) The Diamond Coal Mine of Linton, Ohio, and its Pennsylvanian-age vertebrates. Journal of Vertebrate Paleontology, Vol. 6, 1986, pp. 174-190. Hook, Robert W. and Baird, Donald (1988): An Overview of the Upper Carboniferous Fossil Deposit at Linton, Ohio. The Ohio Journal of Science. v88, n1, 55-60. dshamilla, May 19, 2015: Identifying Paleoniscoid Fishes From Linton Ohio, Upper Pennsylvanian - General Fossil Discussion - The Fossil Forum
- 1 comment
-
- 1
-
- allegheny formation
- carboniferous;
- (and 5 more)
-
people have been looking for some ammonite this area of north china for some eighty years. this might be well the first sure thing. does it remind people of somthing?
- 4 replies
-
- 1
-
- ammonite;
- carboniferous;
-
(and 1 more)
Tagged with: