busyeagle Posted August 21, 2014 Share Posted August 21, 2014 Lots of great finds submitted already this month! Here's my entry: Pelagornis sp. Giant false-toothed bird (psuedodontorn) upper jaw Maryland Calvert Formation Early Miocene (17-17.5 Ma) Found: May 26, 2014 Prep Completed: Aug 12, 2014 Before prep: During prep: After prep: Thanks folks, Kyle Link to comment Share on other sites More sharing options...
Ordovician_Odyssey Posted August 21, 2014 Share Posted August 21, 2014 (edited) Hello all, I'd like to make my entry into the Invertebrate Fossil of the Month! For my entry, I'd like to enter this lovely tabulate colony! Tetradium fibratum; Favistina stellata Upper Gull River formation Late Ordovician (Caradocian cc.450 mya) Kinburn, Ontario Found: August 18th, 2014 The first set of images will be focusing on Prismostylus fibratum; the pictures for Favistina stellata will follow on a second post. First, the dorsal: Notice the four sided corallites, The ventral: A close up on the transverse view of the corallites, Edited August 31, 2014 by JohnJ -Shamus The Ordovician enthusiast. Link to comment Share on other sites More sharing options...
Ordovician_Odyssey Posted August 21, 2014 Share Posted August 21, 2014 Now as promised, the images for Favistina stellata: The dorsal view of the Favistina stellata "growth" on the Prismostylus fibratum colony: The ventral view, showing some of the corallites: -Shamus The Ordovician enthusiast. Link to comment Share on other sites More sharing options...
FossilDAWG Posted August 22, 2014 Share Posted August 22, 2014 (edited) Hi Shamus, Nice to see you posting again, I haven't seen you around the forum in a while. You may be interested to know that a convincing case has been made to reclassify Tetradium as a rhodophyte (red algae) (see Steele-Petrovich, H.M. 2009: Biological affinity, phenotypic variation and palaeoecology of Tetradium Dana, 1846. Lethaia, Vol. 42, pp. 383–392.) Steele-Petrovich also makes a strong argument that the different "species" are just growth forms related to salinity and environmental stress, so that the compact "fibratum" form is associated with high salinity (i.e. open marine) environments and as the environment becomes more salinity-stressed you get the more open forms such as "cellulosum" and "syringoporides". In addition, moving Tetradium from an animal (coral) to the plant kingdom creates a name problem, as there is already a plant genus (a kind of citrus tree) that was named Tetradium before the "coral" genus was named, and the plant name is still in use. You can't use the same genus name for different groups of species within the same kingdom (it's OK if the groups are in different kingdoms, though), so the fossil "Tetradium" should now be called Prismostylus (see Steele-Petrovich 2011, Journal of Paleontology, 85(4), 2011, p. 802–803). All in all, your "Tetradium fibratum" should be labeled Prismostylus fibratum, and once the species level taxonomy of the group is published it will probably end up as Prismostylus columnaris (Hall) form "fibratum". Also, from your photos of the second coral, I can't see enough detail to tell if it is Favestina stellata or Foerstephyllum halli. The easiest way to tell them apart is by the length of the septa: in Foerstephyllum the septa are short, whereas in Favestina they are long and reach each other, or almost reach, in the middle of the corralite. If they meet in the middle and then twist around each other to form a central column-like structure they would be Cyathophylloides, but that genus doesn't occur as low in the Ordovician as the Gull River, it is an Upper Ordovician form. Don Edited August 22, 2014 by FossilDAWG 2 Link to comment Share on other sites More sharing options...
bdevey Posted August 24, 2014 Share Posted August 24, 2014 Its been a year since my last FOTM post. I found this one in the same spot as the one last year. I do like this one more. It is another Callianasid (ghost shrimp) from the Cretaceous Hornbrook Formation in SW Oregon. Found 7/26 finished prep 8/10 Before prep After prep Thanks for looking Bob Link to comment Share on other sites More sharing options...
PFOOLEY Posted August 25, 2014 Share Posted August 25, 2014 Great shrimp! "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
bdevey Posted August 26, 2014 Share Posted August 26, 2014 Great shrimp! Thanks, I'm sure hoping this winter will bust me out another good one for next summer. Link to comment Share on other sites More sharing options...
KansasFossilHunter Posted August 26, 2014 Share Posted August 26, 2014 Ichthyornis (sp.)Rare bird skeletonDiscovered: August 17, 2014Smoky Hill Chalk (Cretaceous)Gove County KS, USACurrently under preparation in the Sternberg Museum of Natural HistoryEDIT: Images redacted, pending publication of research paper.Information on Ichthyornis~It was the first discovered prehistoric bird preserved with teeth~Charles Darwin told Marsh in an 1880 letter that Ichthyornis offered "the best support for the theory of evolution" since he had first published On the Origin of Species in 1859~There are fewer than a dozen specimens with this level of completeness-KansasFossilHunter (Kris)Link to Discovery: http://www.thefossilforum.com/index.php?/topic/48964-ichthyornis-discovery/?hl=ichthyornis Link to comment Share on other sites More sharing options...
Paleoworld-101 Posted August 26, 2014 Share Posted August 26, 2014 Wow!! Some great avian material this month!! Nice specimens all-round too. "In Africa, one can't help becoming caught up in the spine-chilling excitement of the hunt. Perhaps, it has something to do with a memory of a time gone by, when we were the prey, and our nights were filled with darkness..." -Eternal Enemies: Lions And Hyenas Link to comment Share on other sites More sharing options...
Brian Worley Posted August 27, 2014 Share Posted August 27, 2014 (edited) Ancient Sea Turtle (Cretaceous) I found my first Mosasaurus vertebra back in 1986 alone the Sulphur River. That day was the beginning of a fossil journey. In July since lake Tawokani is so low I heard of fossil being found in the early development of the lake call "The Iron Bridge Project" since I fish the Sabine River began to notice rock formation similar to that of the Sulphur River. The river holds water making it impossible to search. In August my first day out I thought I would walk the shore of the lake near the Dam. I was disappointed because the formation wasn't close. As I was walking back I stubbed onto this buried in the sand. The rock formation didn't match the surroundings. I figure it washed to shore from the formation from the river, but regardless I was excited. I began to reacher what type it was knowing most turtles have a shell. The first place that saw was SMU they told me to look up Toxochelys up to Archelon. Within the past few days I contacted Mike Everhart with the Oceans of Kansas and he was very informative on the sea turtle saying it's a Toxochelys up to a small Protostega. This only confirmed my find. This is my first entry as a new member. Brian Worley Thank you Edited August 30, 2014 by Brian Worley Link to comment Share on other sites More sharing options...
Brian Worley Posted August 27, 2014 Share Posted August 27, 2014 Sea turtle Link to comment Share on other sites More sharing options...
Brian Worley Posted August 27, 2014 Share Posted August 27, 2014 Sea turtle Link to comment Share on other sites More sharing options...
Brian Worley Posted August 28, 2014 Share Posted August 28, 2014 Turtle- before Link to comment Share on other sites More sharing options...
LordTrilobite Posted August 28, 2014 Share Posted August 28, 2014 Those are some really strong entries! Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Kosmoceras Posted August 28, 2014 Share Posted August 28, 2014 Couple of trilobites, both Olenus sp from the Upper Cambrian Alum Shales of Scania, Sweden. Found these on the 20th August. Both are just over 1cm. Regards, Link to comment Share on other sites More sharing options...
Sinopaleus Posted August 30, 2014 Share Posted August 30, 2014 Found on the 3rd of August, half buried in beach sand... my 12 inch giant clam fossil. Here's an in situ photo Tridacna gigas Pleistocene Yasawa Islands, Fiji Link to comment Share on other sites More sharing options...
Ordovician_Odyssey Posted August 31, 2014 Share Posted August 31, 2014 (edited) Thomas, Sino, both superb finds! Don, thank you very much for the input! That's very interesting; I will take a look at the papers as soon as possible, they sound very interesting! To the admins; could you please (in the poll post), relabel Tetradium fibratum, to Prismostylus fibratum. Thank you very much! Cheers!Shamus Edited August 31, 2014 by Ordovician_Odyssey -Shamus The Ordovician enthusiast. Link to comment Share on other sites More sharing options...
JohnJ Posted August 31, 2014 Author Share Posted August 31, 2014 Thomas, Sino, both superb finds! Don, thank you very much for the input! That's very interesting; I will take a look at the papers as soon as possible, they sound very interesting! To the admins; could you please (in the poll post), relabel Tetradium fibratum, to Prismostylus fibratum. Thank you very much! Cheers! Shamus Done. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
fossilized6s Posted August 31, 2014 Share Posted August 31, 2014 Better late then never, right!? I'd like to submit my rare "Tully Monster". It's a large 8 3/8" and is 90-95% complete. Tullys are only found in Illinois, USA. There is still a debate on how to classify them. This is a "large" specimen. Found: 8/30/14 Tullimonstrum gregarium Francis Creek Shale Mazon Creek, IL. Mid Pennsylvanian ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Kosmoceras Posted August 31, 2014 Share Posted August 31, 2014 Better late then never, right!? I'd like to submit my rare "Tully Monster". It's a large 8 3/8" and is 90-95% complete. Tullys are only found in Illinois, USA. There is still a debate on how to classify them. This is a "large" specimen. Found: 8/30/14 Tullimonstrum gregarium Francis Creek Shale Mazon Creek, IL. Mid Pennsylvanian IMG_20140831_095603.jpg IMG_20140830_232110.jpg IMG_20140830_232313.jpg IMG_20140830_232216.jpg That's a particularly special find - good luck! Link to comment Share on other sites More sharing options...
fossilized6s Posted August 31, 2014 Share Posted August 31, 2014 That's a particularly special find - good luck! Thank you sir! Good luck to you as well. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
FossilDAWG Posted August 31, 2014 Share Posted August 31, 2014 I think this month is officially "off the hook"! Pretty much every entry is amazing. Don Link to comment Share on other sites More sharing options...
Auspex Posted August 31, 2014 Share Posted August 31, 2014 I won't be able to vote until I regain my senses... What an incredible line up! "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...
fossilized6s Posted August 31, 2014 Share Posted August 31, 2014 I agree! I almost wish i would have found my Tully a few days later....almost... ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
frenchtrilobite Posted August 31, 2014 Share Posted August 31, 2014 My find for this month, late but hope not too late... Found the 7th august Trilobite Phacopidina micheli with counterpart Middle Ordovician South of Rennes, France. Dimensions : 30mm x 8mm My new website : http://www.trilobite.fr Link to comment Share on other sites More sharing options...
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