Roz Posted July 13, 2013 Share Posted July 13, 2013 They can be distinguished from fins by their flat bases: 8347-Stark-Listracanthus-2.jpg These are fairly common in the Stark Shale. They are probably present in other black shales in the area as well. Oddly, as far as I can recall, they haven't turned up among the diverse fauna of the Muncie Creek Shale. Perhaps the mode of preservation of the concretions renders them unrecognizable. I am especially glad you posted those images.. I thought some of my fish fins were feather denticles but now I can see they are not.. Great shots as always! Welcome to the forum! Link to comment Share on other sites More sharing options...
Roz Posted July 13, 2013 Share Posted July 13, 2013 Orthocone does come to mind, but there isn't anything diagnostic to key on. I am betting that you will find more.. Welcome to the forum! Link to comment Share on other sites More sharing options...
Missourian Posted July 19, 2013 Author Share Posted July 19, 2013 Eocrinoid Gogia spiralis Wheeler Formation, Cambrian House Range, Utah I picked this up in a rock shop.... Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted July 19, 2013 Author Share Posted July 19, 2013 Context is critical. Link to comment Share on other sites More sharing options...
Roz Posted July 19, 2013 Share Posted July 19, 2013 WOW! I don't recall seeing one quite like that before! Welcome to the forum! Link to comment Share on other sites More sharing options...
Missourian Posted July 19, 2013 Author Share Posted July 19, 2013 On 7/19/2013 at 11:50 AM, Roz said: WOW! I don't recall seeing one quite like that before! They seem to be fairly common in the Wheeler. I don't remember what I paid for it years ago, but it wasn't that much. If you wish, you could probably pick one up for relatively little $$. I'd like to find one myself out in Utah. I wonder if they can be found at the pay-dig sites? Context is critical. Link to comment Share on other sites More sharing options...
lissa318 Posted July 20, 2013 Share Posted July 20, 2013 Nice Missourian! I would have picked it up too!!! Link to comment Share on other sites More sharing options...
Missourian Posted July 21, 2013 Author Share Posted July 21, 2013 Sponge Wewokella sp. Mound City Shale, Pennsylvanian Linn County, Kansas External surface (right), and interior (left): Wewokella resembles Heliospongia in appearance, but the structure is radically different. External detail: Internal detail: Looks like macaroni to me. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted July 26, 2013 Author Share Posted July 26, 2013 Spore cone clusters Calamostachys sp. Bonner Springs Shale, Pennsylvanian Platte County, Missouri These almost seem to be still hanging from the branches: Point of attachment: Context is critical. Link to comment Share on other sites More sharing options...
Auspex Posted July 26, 2013 Share Posted July 26, 2013 Spore cone clusters Calamostachys sp. Bonner Springs Shale, Pennsylvanian Platte County, Missouri These almost seem to be still hanging from the branches: 8900-Bonner-cone-bundle-1.jpg Point of attachment: 8893-Bonner-cone-bundle-2.jpg Ohmygosh! Wonderful plate! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
lissa318 Posted July 26, 2013 Share Posted July 26, 2013 Spore cone clusters Calamostachys sp. Bonner Springs Shale, Pennsylvanian Platte County, Missouri These almost seem to be still hanging from the branches: 8900-Bonner-cone-bundle-1.jpg Point of attachment: 8893-Bonner-cone-bundle-2.jpg That is fabulous!!! Love it! Link to comment Share on other sites More sharing options...
Roz Posted July 26, 2013 Share Posted July 26, 2013 Beautiful plant life! Welcome to the forum! Link to comment Share on other sites More sharing options...
Missourian Posted July 26, 2013 Author Share Posted July 26, 2013 (edited) Thanks everyone. The site is one of the few that I managed to find all by my lonesome. It started out looking like a pile of dirt, but then these ferns were visible, and many more plants of many kinds rolled out when I handled the chunks. I'll poke through the collection and see if any more look good under the scope. Edited July 26, 2013 by Missourian Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted July 27, 2013 Author Share Posted July 27, 2013 Cockroach wing Bonner Springs Shale, Pennsylvanian Platte County, Missouri Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted July 31, 2013 Author Share Posted July 31, 2013 Spore cone Calamostachys sp. Bonner Springs Shale, Pennsylvanian Platte County, Missouri On the right: The thing on the left is probably immature foliage.... or is it a cone? Calamostachys again, up close: Context is critical. Link to comment Share on other sites More sharing options...
Auspex Posted July 31, 2013 Share Posted July 31, 2013 Wow! Super details! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
AgrilusHunter Posted July 31, 2013 Share Posted July 31, 2013 That roach wing is a beauty! "They ... savoured the strange warm glow of being much more ignorant than ordinary people, who were only ignorant of ordinary things." -- Terry Pratchett Link to comment Share on other sites More sharing options...
Missourian Posted August 8, 2013 Author Share Posted August 8, 2013 Eurypterid Adelophthalmus sp. Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Part: Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted August 8, 2013 Author Share Posted August 8, 2013 Counterpart: This specimen is a dorsal view. For years, I assumed it was ventral. Parts of the head and first two segments are broken away to reveal ventral details, including the metastoma and some legs. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 20, 2013 Author Share Posted September 20, 2013 Micro hash Hickory Creek Shale, Pennsylvanian Wilson County, Kansas The piece is a burrow or erosional scour that had been filled with very fine fossil debris: Forams dominate the mix of various invertebrates and possibly algae: Can you spot the ostracod? Context is critical. Link to comment Share on other sites More sharing options...
lissa318 Posted September 22, 2013 Share Posted September 22, 2013 More fabulous fossils missourian! Always a pleasure to look at them. Link to comment Share on other sites More sharing options...
Missourian Posted September 22, 2013 Author Share Posted September 22, 2013 On 9/22/2013 at 1:20 PM, lissa318 said: Always a pleasure to look at them. I'll have to agree. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 29, 2013 Author Share Posted September 29, 2013 I've been finding an assortment of strange leaf-like fossils at a spot in the Pennsylvanian Quindaro Shale in Miami County, Kansas: http://www.thefossilforum.com/index.php?/topic/26021-mystery-fossils-pennsylvanian/ I took the time to examine a couple under the microscope. Some branching forms: Up close, they don't reveal much fine detail: I haven't seen anything like these at any other site -- or anywhere in the literature, for that matter. I figure they are a form of red algae, similar to Mesophyllum or Peyssonnelia that can be found in modern reefs. I don't know if these Pennsylvanian forms are rare or uniquely preserved in shale. They very well could be the common Archaeolithophyllum, which are normally thoroughly locked in limestone. The small, spaghetti-like strands are unusual as well. They are calcified and completely featureless. Possibilities include sponges, green algae, or traces. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 29, 2013 Author Share Posted September 29, 2013 From the same site.... This simple, sheet-like form is similar to phylloid algae that is frequently encountered in limestone: The gray cylinder with the raised pores is the sponge Coelocladia. Sponge and sheet up close: The sheet is featureless except for a few furrows and some attached epifauna. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 30, 2013 Author Share Posted September 30, 2013 More algal thingies, as above.... Context is critical. Link to comment Share on other sites More sharing options...
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