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Showing results for tags 'cambrian'.
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Hello everyone, Here I have a peculiar trilobite specimen that I discovered cracking shale from the Wheeler Formation. It comes from the House Range in Millard County, Utah, and I know it's mid Cambrian. Thanks!
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Olenellus getzi and Olenellus (Paedumias) yorkensis
cameronsfossilcollection posted a gallery image in Member Collections
From the album: My Kinzers Formation Fossil Collection
Here’s a beautiful double trilobite plate I recently split out. Neither of the trilobites are particularly large, around 2 cm, but they are fully matured. The pleura of both trilobites are still buried under a thin layer of rock, and I’ll be sure to reupload this awesome piece after some careful prep. -
From the album: Trilobites
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A new formation of the Cambrian Tonto Group, Grand Canyon formally named for Frenchman Mountain
Oxytropidoceras posted a topic in Fossil News
Frenchman Mountain Dolostone: 500 million-year-old Grand Canyon rock layer finally gets a name. UNLV geologists name ancient rock layer after Las Vegas mountain that contains similar strata; research published in the journal Geosphere. New Study Links Geologic Features of Las Vegas’ Frenchman Mountain with Grand Canyon. Las Vegas Valley rock layer matches that of a famous interval of rocks at the Grand Canyon; findings reported in the Journal Geology. University of Nevada at Las Vegas, May 1 , 2020 The open access paper is: Rowland, S.M., Korolev, S., Hagadorn, J.W. and Ghosh, K., 2023. Frenchman Mountain Dolostone: A new formation of the Cambrian Tonto Group, Grand Canyon and Basin and Range, USA. Geosphere. Supplemental Material: Frenchman Mountain Dolostone: A new formation of the Cambrian Tonto Group, Grand Canyon and Basin and Range, USA, Geological Society of America Another paper is: Karlstrom, K.E., Mohr, M.T., Schmitz, M.D., Sundberg, F.A., Rowland, S.M., Blakey, R., Foster, J.R., Crossey, L.J., Dehler, C.M. and Hagadorn, J.W., 2020. Redefining the Tonto Group of Grand Canyon and recalibrating the Cambrian time scale. Geology, 48(5), pp.425-430. Related papers: Rowland, S.M., 2022, Geology of Frenchman Mountain and Rainbow Gardens, southern Nevada, USA, in Jiang, G.Q., and Dehler, C., eds., Field Excursions from Las Vegas, Nevada: Guides to the 2022 GSA Cordilleran and Rocky Mountain Joint Section Meeting: Geological Society of America Field Guide 63, p. 23– 43. Rowland, S.M., 1987, Paleozoic stratigraphy of Frenchman Mountain, Clark County, Nevada, in Hill, M.L., ed., Cordilleran Section of the Geological Society of America: Geological Society of America Centennial Field Guide 1, p. 53– 56. Hollingsworth, J.S., Sundberg, F.A. and Foster, J.R., 2011. Cambrian stratigraphy and paleontology of Northern Arizona and Southern Nevada. Museum of Northern Arizona Bulletin, 67, pp.1-321. PDFs of more trilobite papers. Videos Wild Speaker Series: The Amazing Geology of Frenchman Mountain and Rainbow Gardens. Friends Of Nevada Wilderness Frenchman Mountain Loop | Bordering Lake Mead National Nevada Trilobites, Frenchman Mountain Yours, Paul H. -
Hello! I bought these Cambrian soft tissue fossils supposedly from Yunnan in china off of online auction site. I won them in a bid for suspiciously cheap. They seem real to me, but I’d be interested in confirmation of that. I’m also interested what you guys have to say as to what these are. Thanks! One is listed as Naraoia spinosa, the other, fainter one is listed as Vetulicola.
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From the album: My Kinzers Formation Fossil Collection
The smallest complete trilobite in my collection! -
From the album: My Kinzers Formation Fossil Collection
Heartbreaker larval specimen. The fragile telson can be seen going up behind the right side of the cephalon. -
From the album: My Kinzers Formation Fossil Collection
Hypostome of a relatively small Wanneria. This split out with nice three dimensional preservation. ~7mm. -
After scouting some Kinzers spots with @Dean Ruocco , we found ourselves in rock with some beautiful Cambrian bugs. Not nearly all…but some highlights in order 1. Olenllous Getzi (Cephalon) 2. Olenllous Sp. (full bug) 3. Wanneria Walcottana (Thorax/pygdium)
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From the album: Purchased Trilobites of Isotelus2883
From the famed U-dig Quarry of Utah. It was a nice little specimen for not much. Wheeler shale. -
I’ll show my collection here. 1. Agnostida This is my only example from this order. Itagnostus interstrictus Wheeler Shale U-dig Quarry, Delta, Millard County, Utah Middle Cambrian Purchased Scale bar is 1 cm.
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From the album: Pennsylvania trilobites
Olenllous yorkensis? Kinzers shale lancaster co, -
From the album: Pennsylvania trilobites
Olenllous from Lancaster co, Kinzers shale -
From the album: Pierson Cove // Marjum Formation Fossils
A nice double from Pierson Cove. -
From the album: Pierson Cove // Marjum Formation Fossils
Nice inflated example. B. microps is a truly minuscule species, rarely making it past a single centimeter in length. -
From the album: Pierson Cove // Marjum Formation Fossils
An uncommon species with a coarse preservation method. Covered in tiny spines, the bug is only missing its right librigena. -
From the album: Pierson Cove // Marjum Formation Fossils
Agnostid right next to the worm fossil. -
From the album: Pierson Cove // Marjum Formation Fossils
Soft tissue fossil, split open on the ride back to the lab! -
From the album: Pierson Cove // Marjum Formation Fossils
O. pugio? -
Olenoides + Bathyuriscus hash plate
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Pierson Cove // Marjum Formation Fossils
Awesome plate! -
From the album: Pierson Cove // Marjum Formation Fossils
Perfect specimen! Thanks to Jon for prepping this out! -
From the album: Pierson Cove // Marjum Formation Fossils
Weathered but complete bug! -
Brachyaspidion sulcatum Double
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Pierson Cove // Marjum Formation Fossils
Partial double with a beautiful hash plate on the reverse. -
From the album: Pierson Cove // Marjum Formation Fossils
A brilliant example of this uncommon species. -
From the album: Pierson Cove // Marjum Formation Fossils
A cool brown Brachyaspidion from a different section of the mountain.
