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Found 13 results

  1. Went to a site in central PA today and collected some Llewelyn formation ferns and other Carboniferous plants. Second opinions on the following are appreciated! 1, I thought this is an Alethopteris but the leaves look like they can also be some immature Neuropteris with compound leaves with the leaves pressed together. 2. Is this Sigillaria bark? 3. Wasn’t sure if this is Lepidodendron bark. These crosshatched stem-looking prints are quite common at the site 4. is this a Calamite print? 5. I am fairly certain this is Neuropteris but just would like to be sure. That’s all. All and any help is appreciated! Thanks in advance and let me know if scale is needed.
  2. Thomas1982

    20210805_113625

    From the album: Llewellyn Formation

    Sigillaria
  3. Bateman, R.M. and DiMichele, W.A., Escaping the voluntary constraints of “tyre-track” taxonomy. Taxon 00 (00), pp. 1–16 Wiley PDF Yours, Paul H.
  4. Blair County Pennsylvania (USA) (Private property) ..... Recently I explored some heaps of old mine talus which I think is the whitish sandstone from the Pottsville Formation. These rocks commonly have imprints in various degree of detail, especially cordaites and lycopods. The pics below show one large boulder with what I think is a very large imprint of sigillaria. The tape shows 8 feet. I'll readily admit that I'm a noob and susceptible to seeing what I want to see. From my pics someone who knows 'way more than I will ever learn opined the "ridges" are really geochemical in nature. I think they were implying that being mineralogically different they were more resistant to erosion. I'd like to learn more about what to do to followup, and try to verify one interpretation or the other? FWIW, I can't help but think of how I've never seen similar ridging in this formation, assuming I correctly identified the source as Pottsville formation sandstone. There's a lot of this material in Blair/Cambria old mine areas. The leaf scars, if they're there, don't show up in great detail. But then again, I have much smaller samples where you can see leaf scars clearly on one part of the rock and they fade out in another. The pics below are either from early morn and noon, so sun is at different angles. The way I read this rock, the cast is more or less lying in the bedding plane, and there is a calamites along one side. Short of microscopic or chemical analysis in the lab, is there anything more I can do in the field to help firm up an ID one way or the other? Very consistent Some exfoliation allowing a peek at a cross section A Calamites (sp) next to the maybe-Sigillaria Exposed back and back-right corner of boulder, trying to get an idea of bedding planes (This series of three starts at the back side and moves around to the left as we face the rock Is there something else I could do or look for when I return, to help verify its either a Sigillaria imprint, or a (boo hoo hoo) another "Foss-iLarm"?
  5. historianmichael

    Cordaites borassifolius

    From the album: Llewellyn Formation Plants of Pennsylvania

    Cordaites borassifolius and Sigillaria elegans Late Pennsylvanian Llewellyn Formation Centralia, PA
  6. From strip mine rubble in Cambria County, Pennsylvania, USA. Probably Carboniferous age. Is this sigillaria? S rugosa, or something else?
  7. rachelgardner01

    First trip to Centralia, PA

    I had my first taste of the Carboniferous period. I made the trip to Centralia PA for a look at the fossils there. I went to coal deposit up the road from the cemetery on 2nd street ( pic below ). Centralia was not a "ghost town" not when I was there. There was a lot of people around. Many looked like they where their for the Graffiti Highway and other for some kind of four wheel event across the street from the spot I was at. The Shale was very soft and I had a hard time picking up anything bigger than 2 inches. I pulled away 3 layer but still had the same problem. I don't know if it would be them same if a kept going. Over all the sit was easy to find, and had a good view. With many fossil to pick from.
  8. Mountain girl

    Fossil ID? Yesterday's find...

    I found this in a stream bed yesterday in Preston County, WV. There are several tree fossils in the area, but this is my first significant find in this location. It was sitting in the bank erosion/water line of the stream. From my amateur sleuthing, I found similar pictures of sigillaria fossils. Not the typical bark pattern though. Thoughts?
  9. Jdzales

    Coal shale Pennsylvania fossil

    Hello and thank you for your input. This slab is 20" x 15" and has a folded, what I believe to be a sigillaria leaf that is about 30" long. I am not sure though? I have color changed one of the photos so you can see the specimen in the center.
  10. Dpaul7

    Sigillaria Tree Fossil a.jpg

    From the album: MY FOSSIL Collection - Dpaul7

    Sigillaria Tree Fossil SITE LOCATION: Eastern Kentucky TIME PERIOD: Carboniferous, Pennsylvanian Period (307-331 Million Yeas Ago) Sigillaria is a genus of extinct, spore-bearing, arborescent (tree-like) plants. It was a lycopodiophyte, and is related to the lycopsids, or club-mosses, but even more closely to quillworts, as was its associate Lepidodendron. This genus is known in the fossil records from the Late Carboniferous period but dwindled to extinction in the early Permian period (age range: from 383.7 to 254.0 million years ago). Fossils are found in United States, Canada, China, Korea, Tanzania and Zimbabwe. Kingdom: Plantae Phylum: Lycopodiophyta Class: Isoetopsida Order: †Lepidodendrales Family: †Sigillariaceae Genus: †Sigillaria
  11. Dpaul7

    Sigillaria Tree Fossil a.jpg

    From the album: MY FOSSIL Collection - Dpaul7

    Sigillaria Tree Fossil SITE LOCATION: Eastern Kentucky TIME PERIOD: Carboniferous, Pennsylvanian Period (307-331 Million Yeas Ago) Sigillaria is a genus of extinct, spore-bearing, arborescent (tree-like) plants. It was a lycopodiophyte, and is related to the lycopsids, or club-mosses, but even more closely to quillworts, as was its associate Lepidodendron. This genus is known in the fossil records from the Late Carboniferous period but dwindled to extinction in the early Permian period (age range: from 383.7 to 254.0 million years ago). Fossils are found in United States, Canada, China, Korea, Tanzania and Zimbabwe. Kingdom: Plantae Phylum: Lycopodiophyta Class: Isoetopsida Order: †Lepidodendrales Family: †Sigillariaceae Genus: †Sigillaria
  12. Ludwigia

    Sigillaria sp. (Brongiart 1822)

    From the album: Plantae

    Imprint of a stem. From the late Carboniferous Westfalian at Calonne-Ricouart, France. Recieved on a trade with Gery (Nala)
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