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Showing results for tags 'coal swamp'.
Found 3 results
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Strangely "Cooked" Bones From Carboniferous Lagerstätte Finally Explained (Ireland)
Oxytropidoceras posted a topic in Fossil News
Strangely Cooked Bones From 300 Millions Years Ago Can Finally Be Explained Michelle Starr, Nature, Science Alert, December 13, 2022 Ancient amphibians had their bones cooked, Trinity College Dublin The open access paper is: Gogáin, A.Ó., O'Sullivan, G., Clements, T., Hoare, B.C., Murray, J. and Wyse Jackson, P.N., 2022. Metamorphism as the cause of bone alteration in the Jarrow assemblage (Langsettian, Pennsylvanian) of Ireland. Palaeontology, 65(6), p.e12628. Yours, Paul H.- 2 replies
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- sphalerite
- variscan deformation
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Help Identify. Petrified Wood? Petrified Cactus? Something else?
SCSeaGal15 posted a topic in Fossil ID
Found this antiquing. Was only marked "petrified rock"..It is black & charcoal gray in color with a vertical ribbed texture and some rounded ends. Measures 6.5" tall x 5.5" x 4" and weighs 8lbs 1.1 oz. Is it petrified wood ? Petrified cactus? Or something else? It's only letting me upload 1 photo. Took pics with phone and guess their too big. Will try to post more. -
Trigonocarpus - Carboniferous Seed from St. Clair (1a)
hitekmastr posted a gallery image in Members Gallery
From the album: Carboniferous Plant Fossils in My Collection
This 2 inch Trigonocarpus is a seed of a Medullosa (pteridosperms seed plants) which grew in shallow swamps abour 306-308 million years ago when St. Clair, PA was located near the Equator. Leaves associated with this seed & tree include Alethopteris and Neuropteris. It is thought that these seeds were encased in fleshy "fruit" like an avocado. The seeds were open at the pointed end to allow pollen to enter when the seeds dropped into the water in the shallow swamps where these trees grew. These were the largest Carboniferous seeds, growing up to 4 inches.