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Showing results for tags 'graptolites'.
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Graptolite Collected at the 2023 Dig with the Experts Penn Dixie
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Dictyonema hamiltoniae Partial Graptolite Frond 3/4 inch wide Middle Devonian Moscow Formation Windom Shale Hamilton Group Penn Dixie Quarry Blasdell, N.Y.-
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From the album: Silurian
Dictyonema retiformi Branching graptolite Middle Silurian Rochester Shale Burleigh Member Upper Clinton Group Erie Canal Greece, N.Y.-
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Here are some of the fossils I acquired in a shale roadcut I was told about thanks to @prem. These are ordovician in age, and I have to say it was difficult to collect them due to the fragility of the surrounding material. Ive identified most of my finds, however there were these unusual pill like outlines I wasn't familar with.
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Excited to find this fossil-rich rock, which seems to have graptolites (my first). Any thoughts on ID?
Rogue Embryo posted a topic in Fossil ID
It's been a while since I've posted here, but recently I found a small rock that's covered by fossils that are less familiar to me than the crinoids and cephalopods that I often find near Toronto. I think some are graptolites, but would appreciate any help with ID. Thanks very much!- 9 replies
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From the album: Prae's Collection (REMPC)
REMPC GR0001 Graptolites Middle Ordovician Liberty Hall Formation Lusters Gate, VA, USA-
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I found these Graptolites in the Ashgill beds of fine slaty mudstone, at ash ghyll cumbria (You will have no idea where this is) I followed my book from 1969 explaining where to find graptolites. It says these are either monograptus argentus or monograptus fimbriatus ??? Does anybody know what type they are.
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I have been wondering what to do with the graptolites I have found. Currently they're scattered around the house, which I think is a sign to put them up for display. Please... help... the graptolites are taking over my house! How do you suggest I display them?
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For Late Ordovician graptolites, a long decline before extinction
Oxytropidoceras posted a topic in Fossil News
For ancient deep-sea plankton, a long decline before extinction University of Buffalo, Press release by Charlotte Hsu Sheets, H.D., Mitchell, C.E., Melchin, M.J., Loxton, J., Štorch, P., Carlucci, K.L. and Hawkins, A.D., 2016. Graptolite community responses to global climate change and the Late Ordovician mass extinction. Proceedings of the National Academy of Sciences, 113(30), pp.8380-8385. Researchgate PDF for above paper Related publications Yours, Paul H.-
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New light shed on ancient NZ fossils Ancient marine creatures once believed to have been mere ‘bit players’ in the fossil record have now found fame. Victoria University Of Wellington https://www.newsroom.co.nz/ideasroom/2020/03/05/1067165/new-light-shed-on-ancient-nz-fossils The paper is: Crampton, J.S., Cooper, R.A., Foote, M. and Sadler, P.M., 2020 Ephemeral species in the fossil record? Synchronous coupling of macroevolutionary dynamics in mid-Paleozoic zooplankton. Paleobiology, vol 46, no. 1, pp.1-13. https://www.cambridge.org/core/journals/paleobiology/article/ephemeral-species-in-the-fossil-recordsynchronous-coupling-of-macroevolutionary-dynamics-in-midpaleozoic-zooplankton/F87F8986D7197004222B4E3F5170B748 Yours, Paul H.
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G'day everyone! I have some beautfiul graptolites from Australia that need a new home. They are middle Ordovician in age and come from Spring Gully, Bendigo Victoria. The small ball shaped graptolites are phyllograptus typus? and there is some unidentified graptolites in the middle on the bottom and to the top right there is a small juvenile Tshallograptus tridens. I am happy to trade all of these graptolites for some other graptolites and maybe some trilobite material? Thanks, Dan
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G'day everyone! I was reading through a paper on Bendigonian graptolites and found that their are four similar looking species of Paratetragraptus graptolites that can be found in Bendigo localities (P. approximatus, P. acclinans, P. thomassmithi and P. henrywilliamsi?). I was wondering if anyone could shed some light on the characteristics that help separate and identify each of these species. @Tidgy's Dad? Thanks, Dan
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Graptolite collected from Spring Gully, Bendigo, Victoria from Bendigonian Age (Australian) rocks.
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From the album: Fossil Collection
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Piece of Devonian Graptolite from Erie Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Dictyonema hamiltoniae (graptolite) Middle Devonian Moscow Formation Windom Shale Hamilton Group Penn Dixie Quarry Blasdell, NY.-
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From the album: Ordovician
Graptolites (sp.?) Middle Ordovician Canajoharie Shale Canajoharie Gorge Canajoharie, N.Y.- 2 comments
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Bryozoa, Graptolites encrusted rock - Top View
Spookwoman posted a gallery image in Member Collections
From the album: Irish Coral algae and Bryozoan
Bottom view of a rock found on a beach Co Waterford Ireland. Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is 7*19*15cm and when an area approx 2*1*1cm was removed there were fossils found in the area. Quote from GSI "The mix of useful animal groups makes this an important site for biostratigraphical correlation within the Ordovician Period, both in Ireland and internationally. It is even more important because the animal species present at Tramore were biogeographically differentiated into different faunal provinces in older rocks, and the site will be very important in understanding the breakdown of the faunal provinciality within the Iapetus Ocean that once separated northwest Ireland from southeast Ireland. Tramore appears to have been a key site for the early migration of North American species into the Anglo-Welsh (and Irish) area."- 1 comment
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Bryozoa, Graptolites encrusted rock - Fossil 3 Penniretopora?
Spookwoman posted a gallery image in Member Collections
From the album: Irish Coral algae and Bryozoan
Fossil 3 - Outline of possible Penniretopora. Longest is 2cm Found on a rock Co Waterford. Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is 7*19*15cm-
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Bryozoa, Graptolites encrusted rock - Fossil 2 Penniretopora?
Spookwoman posted a gallery image in Member Collections
From the album: Irish Coral algae and Bryozoan
Fossil 2 - Cross knives with teeth shaped fossil. Each "knife" is 1.5cm long. Possible Penniretopora. Found on a rock Co Waterford. Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is 7*19*15cm-
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Bryozoa, Graptolites encrusted rock - Fossil 1, Dome Shaped Bryozoa?
Spookwoman posted a gallery image in Member Collections
From the album: Irish Coral algae and Bryozoan
Fossil 1 - dome-shaped bryozoan colony found on a rock Co Waterford. Fossil is 1*1cm with distinctive layers Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is 7*19*15cm-
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Bryozoa, Graptolites encrusted rock - Bottom View
Spookwoman posted a gallery image in Member Collections
From the album: Irish Coral algae and Bryozoan
Bottom view of a rock found on a beach Co Waterford Ireland. Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is 7*19*15cm