Search the Community
Showing results for tags 'Pennsylvanian'.
-
I found some probably identifiable plants from the Pennsylvanian Naco Formation of Arizona. Cordaites stems? Notice width of ribs between the two. Stem length is 7.5 cm in photo 1 and 11 cm in photo 2. Thanks, John @paleoflor @Plantguy @Arizona Chris
-
Howdy all, Here's a Pennsylvanian plant assemblage from Letcher, Kentucky. I'm already aware of the Cordaites leaf and another structure that looks similar to that, as well as the seed fern fronds. I'm curious however as to what type of seed fern that is, and of the other little bits and pieces that are in here.
- 12 replies
-
- 2
-
-
-
- coal fossil
- cordaites
- (and 4 more)
-
These came from the Late Pennsylvanian, Finis Shale member of the Graham Formation at Jacksboro Texas. Bottom right is likely to be an echinoid spine with that stereom-looking texture and the others may be conodonts or scolecodonts but I am not familiar enough with them to say. Any ideas? Scale is millimeters.
- 3 replies
-
- 4
-
-
- Finis Shale
- Jacksboro
- (and 3 more)
-
I am new to micros but I have had at least a cursory look at bulk samples from a variety of sites and ages, mostly Texas and Pennsylvanian. The material from this one Pennsylvanian site in Oklahoma seems so far out of the typical range for quantity of fossils I am wondering what others think. Most of what I have looked at will show me a fossil for every 50 to 100 rocks and I consider that normal. This site has matrix that, when cleaned and screened to remove the finest shale particles (60 mesh) has hardly anything but fossils! The biggest problem with that is deciding what to keep and what to discard, however, if the trade-off is diversity over quantity I might prefer to see less fossils. I found mostly broken pieces of bryozoans but quite a few crinoid parts and not mostly stem sections like I usually see. There are some brachiopods and a few corals but the paucity of mollusks seems odd. In the first batch I took home there were no bivalves, no cephalopods and only one gastropod! Odder still I did find a trilobite genial spine and the tip of a conulariid, things that are usually far less common. There were also a few conodonts or maybe scolecodonts and some ostrocods. I went for another gallon baggie-full and finally got a few more gastropods, very few bivalves and one orthoconic nautiloid. Besides the large quantity of fossils I am curious about what conditions might contribute to that lack of diversity. I can not be certain about the formation but it appears to be in the Deese group. Geologists I have asked say the area is a geological mess so anyone who could volunteer to clear up the confusion is welcome to have a look! It is west of I-35 and south of Ardmore. Below are photos of the matrix after I screened out the finest shale particles. Scale is millimeters.
-
Come on man, it's only a clam!
BobWill posted a topic in Partners in Paleontology - Member Contributions to Science
These used to be called Aviculopinna subspatulata but Dr. Thomas Yancey at Texas A&M University knew that was wrong. He had recognized that the whole Pinnid family was a real mess with poor descriptions based on incomplete specimens and bad taxonomic grouping which had them in need of a gross reorganization. When he saw this 2 foot (60 cm) specimen I found 8 years ago at Jacksboro Texas he was inspired to take on the task and it took him 5 years to complete. I eventually sent along smaller pieces from the loose shale at the site but this was in a huge limestone boulder and took me 4 trips to the site to get it out. Dr. Yancey gathered specimens of pinnids donated by other collectors and loaned from museums across the country and Germany. He named 13 new species and 7 new genera in his manuscript Revision of Late Paleozoic Pinnid Genera and North American Species of Bivalve Family Pinnidae just published in the "Bulletins of American Paleontology." Now this is called Falcatopinna bobwilliamsi and as soon as I figure out how to pronounce the genus people will be begging me to stop boasting about it Forum member @cngodles also got a species named after him and a geologist friend Jim Flis got a species and a genus memorializing his efforts on the project. If that name sounds familiar, you may know his son, Chris, @dinodigger now head of the Whiteside Museum in Seymore Texas.
- 30 replies
-
- 25
-
-
-
- finis shale
- jacksboro
- (and 3 more)
-
Location: Missouri Age: Pennsylvanian Stratigraphy: Iola formation (Raytown Limestone Member) Found this odd tooth today, sadly the tip is slightly broken making it probably difficult to id. My best guess would be a weird form of crusher tooth but that id seems a bit off. What do you guys think? (about 6mm)
- 2 replies
-
- 2
-
-
- Missouri
- Pennsylvanian
- (and 1 more)
-
Yesterday I went on a combined field trip with ESCONI and LOESS to the Starved Rock Clay Products pit in Utica, Illinois. ( @connorp was there too!) This open pit exposes the Pennsylvanian Mecca Quarry black shale, Francis Creek shale, Colchester Coal, and an underclay below the coal- an assembly of strata that have produced world-renowned fossils elsewhere, including Mazon Creek fossils further east and complete sharks from the Mecca Quarry Shale in Indiana. At this location, unfortunately, the concretions are almost all blanks but the black shale does produce isolated fauna including bivalves, brachiopods, cephalopods, and shark teeth and scales. The underclay also contains petrified and pyritized wood and root traces. About 30 of us gathered at a nearby McDonalds before heading to the pit- dark clouds on the horizon brought intermittent hard rain that kindly let up by the time we reached the pit floor. My interest for this trip was in the black shale, with hopes of finding shark material in particular. With the recent rains everything was muddy, and the black shale could be found in chunks strewn along the slumping highwall. Some folks were splitting the shale, but I did not have any luck with that-all of my finds were already exposed. The mud really made it hard to see whether or not there were fossils in the exposed black shale, but I was happy to be able to find a few pieces worth taking home- as often seems to be the case for me when fossil hunting, I found my best stuff in the first hour and virtually nothing the rest of the time I was there.
- 18 replies
-
- 7
-
-
- black shale
- carboniferous
- (and 6 more)
-
Hello, Could I get a species ID on these Annularia leaves from South Korea? I am pretty clueless when it comes to plant material. It is a split pair, and the three whorls together measure about 5 cm across. Provenance: Hambaeksan, Taebaek, Gangwon province, South Korea Thanks!
-
Unknown pennsylvanian period fossil. I was told it was a distant relative of extant cnidarians
paleonick posted a topic in Fossil ID
I found this odd looking fossil while looking for complete pennsylvanian crinoids. I've shown a handful of people and a paleontologist told me that it was the fossil of an extinct lineage of cnidarians and that it was quite rare ro find. You can see a central line with additional lines radiating out from the central line. Any help would be greatly appreciated! Thanks in advance.
-
From the album: Paleozoic of North America
A cool Annularia horsetail. Pennsylvanian Rhode Island formation Portsmouth, Narragansett basin, Rhode Island-
- 1
-
-
- annularia
- pennsylvanian
- (and 1 more)
-
Howdy all, Recently recieved this piece. Found in Laurel County, Kentucky. Was described as Calamites, which I agree with, but I'm wondering if anyone could tell me anything more about it.
-
Here’s a fun one. I found this tooth in some glacial deposits in NW Missouri, and these said deposits are known to have ‘Pleistocene’, ‘Cretaceous’, and ‘Permian’ animals…. which does not make fossil ID easy . In my opinion, this is a fish tooth due to the lack of carinae. However could it be a reptile tooth despite this? I’ve never found anything like before, so I’m a bit helpless with fish teeth If fish tooth, what kind? Thank you!
- 17 replies
-
- 1
-
-
- Canine
- Cretaceous
- (and 10 more)
-
From the album: Carboniferous Flora of Russia
Shakhty, Rostov Oblast. Bashkirian. Bought from a private collection. -
From the album: Carboniferous Flora of Russia
Shakhty, Rostov Oblast. Bashkirian. Bought from a private collection. -
From the album: Carboniferous Flora of Russia
Shakhty, Rostov Oblast. Bashkirian. Bought from a private collection. -
From the album: Carboniferous Flora of Russia
Rostov Oblast. Bashkirian. Bought from a private collection. -
From the album: Carboniferous Flora of Russia
Rostov Oblast. Bashkirian. Bought from a private collection. -
I found a couple things that I'm uncertain of, and would like other opinions. The fossils are Pennsylvanian in age, coming from the Winterset Limestone of Western Missouri, Kansas City area. The first I considered could be some sort of echinoid plate? The second is a mystery. I haven't found anything quite like it prior, but considered it could be some sort of wood or possible fish spine.
- 7 replies
-
- 1
-
-
- missouri
- pennsylvanian
- (and 1 more)
-
From the album: Pennsylvanian fossils
An enrolled Ameura trilobite with a slight disarticulated cheek, and weathering damage. -
From the album: Pennsylvanian fossils
A buried Ameura missouriensis. Both eyes are there, but I'm not certain if this is just a cephalon, or possibly complete. -
From the album: Pennsylvanian fossils
A white color shelled Ameura pygidium. -
From the album: Pennsylvanian fossils
Phylum: Brachiopoda-Articulata Class: Rhynchonellata Order: Orthida Family: Enteletidae Genus: Enteletes Species: Enteletes pugnoides- 1 comment
-
- 5
-
-
-
- brachiopod
- enteletes
- (and 1 more)
-
From the album: Pennsylvanian fossils
Phylum: Brachiopoda-Articulata Class: Rhynchonellata Order: Athyridida Family: Athyrididae Genus: Composita- 3 comments
-
- 3
-
-
- bond formation
- brachiopod
- (and 2 more)
-
I have 4 Pennsylvanian stigmaria specimens of which only one was specifically identified as a lepidodendron by the collector. I am hopeful that others might have useful suggestions in terms of better identifying the others. The 1st image is of a Pennsylvanian lepidodendron stigmaria specimen from Kentucky. This is my nicest one because not only is it better identified, it also illustrates rootlets and buttons. Image 2 is of another Pennsylvanian stigmaria from Clintonville, Pennsylvania. This appears to be the most common type of stigmaria that I have seen. Would anyone have suggestion/possibilities that would better characterize this specimen? Images 3 and 4 are a Pennsylvanian stigmaria with a heavily degraded label. Image 4 is a closeup of the specimen in image 3. I was able to decipher parts of the label and it was apparently collected near Middlesboro, Kentucky. The rootlet scars on this specimen are much less three dimensional that the rootlet scars on the specimen in image 2. There may be a comment on the label about the rootlet scars having a spiral character. Would anyone be better able to characterize this specimen? Image 5 is of another Pennsylvanian stigmaria from Kentucky. It has many similarities with the specimen depicted in image 2. I also have one very heavily weathered stigmaria from Oklahoma that is very similar to the ones depicted in images 2 and 5; I didn't think it was worth uploading an image. Comments and suggestions about the others would be appreciated.
- 6 replies
-
- 3
-
-
- carboniferous
- lepidodendron
- (and 2 more)
-
These came from the Finis Shale member of the Graham Formation near Jacksboro Texas. The scale is millimeters.
.thumb.jpg.82890752b28241d36736ef0d40cbd17a.jpg)
