astron Posted February 14, 2013 Share Posted February 14, 2013 Yours may be more like uncles. Correct, if we think of their age Astrinos P. Damianakis Link to comment Share on other sites More sharing options...
Shamalama Posted February 14, 2013 Share Posted February 14, 2013 Figured I would post these to the correct thread instead of polluting the Scolecodont/Conodont thread with them. While parsing through a sample of the Centerfield Limestone looking for microfossils, I was pleasantly surprised to find some small "rice grains". They didn't look like Ostracods to me because they were not round nor did they have any ornamentation to them. A quick scan through the book "Ostracods of the Middle Devonian Silica Formation" changed my mind. These are a species called Acanthoscapa devonica. Each fossil is about 2mm long. If I did my math right, the full size image is 50x (since the fossils are shown 100mm long on my screen). Click on the photo to enlarge! According to the book (vol 1, pg 86) They are known from the Silica Shale but have also been found in the Hungry Hollow member of the Widder Formation in Ontario as well as the Centerfield member (where I found mine!) of the Ludlowville Formation in New York. They are illustrated on plate 7 (vol 2, pg. 16-17) where there is a comment that the specimen shown is from the Hungry Hollow formation and that specimens from the Silica shale often have their ends broken off. References: "Ostracods of the Middle Devonian Silica Formation" by Kesling, R. V.; Chilman, R. B, 1978, FUMMP Papers on Paleontology No. 18 -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Missourian Posted February 14, 2013 Author Share Posted February 14, 2013 On 2/14/2013 at 5:38 PM, Shamalama said: While parsing through a sample of the Centerfield Limestone looking for microfossils, I was pleasantly surprised to find some small "rice grains". They didn't look like Ostracods to me because they were not round nor did they have any ornamentation to them. A quick scan through the book "Ostracods of the Middle Devonian Silica Formation" changed my mind. These are a species called Acanthoscapa devonica. Each fossil is about 2mm long. If I did my math right, the full size image is 50x (since the fossils are shown 100mm long on my screen). According to the book (vol 1, pg 86) They are known from the Silica Shale but have also been found in the Hungry Hollow member of the Widder Formation in Ontario as well as the Centerfield member (where I found mine!) of the Ludlowville Formation in New York. Well, those certainly are different. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted February 16, 2013 Author Share Posted February 16, 2013 Euphoberid millipedes Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Specimen #1.... Lots of legs: Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted February 16, 2013 Author Share Posted February 16, 2013 Specimen #2.... Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted February 16, 2013 Author Share Posted February 16, 2013 Specimen #3.... Head: And body: Context is critical. Link to comment Share on other sites More sharing options...
Auspex Posted February 16, 2013 Share Posted February 16, 2013 Euphoberid millipedes Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Ooooooo! I'm getting a good cardio workout here! "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...
Bullsnake Posted February 22, 2013 Share Posted February 22, 2013 Ostracod(?) Wyandotte fm. Field of view ~1cm Steve Link to comment Share on other sites More sharing options...
Missourian Posted February 22, 2013 Author Share Posted February 22, 2013 On 2/21/2013 at 9:30 PM, Bullsnake said: Ostracod(?) Wyandotte fm. Field of view ~1cm IMG_0001.JPG It certainly looks like one. Is it bean shaped? Context is critical. Link to comment Share on other sites More sharing options...
Bullsnake Posted February 22, 2013 Share Posted February 22, 2013 It certainly looks like one. Is it bean shaped? Bean-ish. I've found several, at least similar looking objects, on closer examination of the rocks. Is there something else they might be? Steve Link to comment Share on other sites More sharing options...
Missourian Posted February 22, 2013 Author Share Posted February 22, 2013 On 2/22/2013 at 4:06 PM, Bullsnake said: Bean-ish. I've found several, at least similar looking objects, on closer examination of the rocks. Is there something else they might be? I'm pretty sure they're ostracods. I've found a few there in the past. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted February 26, 2013 Author Share Posted February 26, 2013 Carbonized wood (probably Cordaites sp.) Farley Limestone, Pennsylvanian Johnson County, Kansas The wood was associated with the eurypterid shown in a post above: http://www.thefossilforum.com/index.php?/topic/33865-adventures-in-microscopy/?p=376879 Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 1, 2013 Author Share Posted March 1, 2013 Unknown fossil type Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Arthropod or plant?: Up-close details: It is 17 mm in length. Again, the Knob Noster deposit is similar to the Braidwood fauna & flora at Mazon Creek. Context is critical. Link to comment Share on other sites More sharing options...
astron Posted March 1, 2013 Share Posted March 1, 2013 Unknown fossil type Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Arthropod or plant?: 3631-Knob-Noster-mystery-1.jpg Up-close details: 3640-Knob-Noster-mystery-3.jpg It is 17 mm in length. Again, the Knob Noster deposit is similar to the Braidwood fauna & flora at Mazon Creek. I can't say what it is for sure but only that it looks to me like a weathered trilobite... Astrinos P. Damianakis Link to comment Share on other sites More sharing options...
Missourian Posted March 1, 2013 Author Share Posted March 1, 2013 On 3/1/2013 at 4:09 AM, astron said: I can't say what it is for sure but only that it looks to me like a weathered trilobite... I also posted it to the 'Fossil ID' subforum. My hope is that it is Amynilyspes sp., a pill millipede. Fingers crossed.... Context is critical. Link to comment Share on other sites More sharing options...
astron Posted March 1, 2013 Share Posted March 1, 2013 I also posted it to the 'Fossil ID' subforum. My hope is that it is Amynilyspes, a pill millipede. Fingers crossed.... That would be great. Here is a relative pdf of the Smithsonian http://si-pddr.si.edu/jspui/bitstream/10088/5964/1/Encyclopedia_Myriapods_1999.pdf Good luck with it Astrinos P. Damianakis Link to comment Share on other sites More sharing options...
Missourian Posted March 8, 2013 Author Share Posted March 8, 2013 Fish scale (lungfish?) Upper Cherokee Group, Pennsylvanian Knob Noster, Missouri Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 17, 2013 Author Share Posted March 17, 2013 Fish bone or cartilage Muncie Creek Shale, Pennsylvanian Kansas City metro Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 18, 2013 Author Share Posted March 18, 2013 Closer and closer.... Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 18, 2013 Author Share Posted March 18, 2013 Mollusk? Muncie Creek Shale, Pennsylvanian Kansas City metro It's hard to photograph, but this object has at least two sides (possibly four) with rounded corners. I first thought this was some form of conularid, butI then noticed the yellowish crystaline stuff that seems to form a hood over one end of the 'ovoid'. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 20, 2013 Author Share Posted March 20, 2013 Spherical goniatite (10 mm) Subkargalites sp. Winterset Limestone, Pennsylvanian Jackson County, Missouri Ammonoids are so rare around here. Context is critical. Link to comment Share on other sites More sharing options...
astron Posted March 20, 2013 Share Posted March 20, 2013 Very nice finds and impressive details, as usual Astrinos P. Damianakis Link to comment Share on other sites More sharing options...
Missourian Posted March 23, 2013 Author Share Posted March 23, 2013 I found this while searching for something else in storage.... Conodont (1.5 mm) Streptognathodus sp. Lower Kansas City Group, Pennsylvanian Jackson County, Missouri Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 23, 2013 Author Share Posted March 23, 2013 Naturally sectioned goniatite Glaphyrites or Eoasianites Muncie Creek Shale, Pennsylvanian Johnson County, Kansas I found this one a year ago during my first forum outing: http://www.thefossilforum.com/index.php?/topic/26408-end-of-the-year-mo-kan-hunt/?p=290021 Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted March 24, 2013 Author Share Posted March 24, 2013 Inarticulate brachiopod (8 mm) Lingula sp. Lower Kansas City Group, Pennsylvanian Jackson County, Missouri Context is critical. Link to comment Share on other sites More sharing options...
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