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I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
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- amherstburg
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- syringopora
- syringopora cylindricum
- ontario
- canada
- athyris
- athyrid
- athyridid
- hypostome
- pentamerella
- pentamerella pavilionensis
- pentamerella grandis
- camarotoechia
- camarotoechia lamellosa
- rhynchonellid
- rhynchonellida
- kozlowskiellina
- megakozlowskiellina
- megakozlowskiellina submersa
- fimbrispirifer
- fimbrispirifer divaricatus
- spiriferid
- strophomenid
- strophomenata
- spiriferida
- leptostrophia
- rhytistrophia
- rhytistrophia cooperi
- megastrophia
- megastrophia proxicostellata
- stromatoporoid
- sponge
- murchisonoidea
- mourlonia
- confertinemilata
- rostroconch
- hoareicardia
- hoareicardia cunea
- hippocardia
- hippocardia ohioense
- syringopora hisingeri
- placophyllum
- fistulipora
- dawsonoceras
- dawsonoceras americanum
- goldringia
- goldringia citum
- rugosa
- rugose coral
- gastropod
- gastropoda
- bryozoan
- bryozoa
- nautiloid
- orthocone
- orthocerid
- cyrtocone
- orthoconic nautiloid
- cyrtoconic nautiloid
- trilobite
- proetid
- proetida
- crassiproetus crassimarginatus
- crassi
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A nice Dictyonema flabelliforme dendroid graptolite from Oslo Fields in Norway. It's Tremadoc, Lower Ordovician in age and is thus maybe around 480 mya. Another angle :
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- bou nemrou
- el kaid errami
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- first bani group
- trigonirhynchiidae
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- rostricellula minnesotensis
- izzegguirine formation
- rhynchotrematidae
- rostricellula
- rhynchotrema wisconsinense
- rhynchotrema ainsliei
- rhynchotrema
- minnesota
- rochester
- cummingsville formation
- lituites
- lituites lituus
- trilacinoceras hunanense
- huk formation
- trilacinoceras
- slemmested
- phyllograptus angustifolius
- phyllograptus
- rhabdinopleura flabelliformis
- rhabdinopleura
- tetragraptus serra
- tetragraptus
- upper ordovician
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- norway
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- tremadoc
- lower ordovician
- pagoda formation
- oslo
- baota formation
- ampyx
- ampyx priscus
- upper fezouata formation
- fezouata formation
- ouled slimane
- zagora
- raphiophoridae
- favosites
- favosites fibrilla
- dufton shales
- cross fell
- pennines
- caradoc
- caradocian
- constellaria antheloidea
- cincinnati group
- constellaria
- cincinnatian
- williamson county
- tennessee
- morocco
- china
- ascocystites
- bumastoides
- postville
- iowa
- anti atla
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What happened to the website of William Hessin's "Fossils of South Central Ontario"
JUAN EMMANUEL posted a topic in General Fossil Discussion
Hi everyone, does anyone know what happened to William Hessin's publication "south central ontario fossils" or the website where one can purchase his publication either by book or cd? I wish to obtain a digital copy of his book and if anyone can provide me with a way to contact this guy that would be great. -
From the album: Trilobites
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From the album: My trilobites
Pseudogygites latimarginatus, upper Ordovician, Ontario. My great grandmother collected this trilobite while my grandfather went hunting.-
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Mannopyge Trilobite Pygidium from Formosa Reef
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Trilobite Pygidium Middle Devonian Amherstburg Formation Detroit River Group Formosa Reef Formosa, Ontario-
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From the album: Middle Devonian
Mucrospirifer thedfordensis Spiriferid Brachiopod (open shell) Middle Devonian Widder Shale Hungry Hollow Arkona, Ontario A gift from Kane-
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From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Favistina calicina coral from the Credit River near Streetsville, Mississauga. Georgian Bay Formation, Streetsville Member, late Ordovician. Found as a loose specimen by the banks of the Credit River. This colonial rugose coral is very abundant along the site with many small loose colonies. Some colonies can be found on a limestone matrix. Please click on image sizes to see details of the corallites. -
From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Favistina calicina Found as a loose specimen at an exposure at the Credit River on Streetsville, Mississauga, Ontario. Late Ordovician, Georgian Bay formation. A rugose colonial coral. Coral approximately 10 cm excluding extra matrix.- 1 comment
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- ordovician
- georgian bay formation
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Hi Fossil Forum, Someone gave me these ammonite fossils that they claim were found in southern Ontario Canada in the early 1900’s. I looked around and the only ammonite fossils from Ontario I saw were small pyritized ones. They look real to me, as you can see structures (of aragonite?) that fakes don't normally have, but none of my other ammonites I own have this ridge down the middle that makes it look like it came out of a mold. Most seem to be of one species that's ridged but one is also smooth with no central ridge. Let me know what you guys think, genus wise, and if you think they are from Ontario. Thanks, Alicia
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I'm a very new fossil hunter. I found this lovely little trilobite head (at least, I'm 99% sure it's a trilobite!) in the area around Arkona, Ontario (Canada) this past summer, which to my knowledge is middle devonian. Problem is, it's only the head. I'm not sure if that's very helpful (I'm not even familiar with where to look for resources on IDing trilobites) so I figured I'd ask here. If not to genus, I'd love to get it narrowed down as far as possible, and I'd also love to know what features support your ID! Trilobites are among my favourite extinct animals, I'd love to be able to ID the ones I find in future. Links to good resources on trilo ID are also appreciated, especially ones focusing on trilos found insouthern Ontario. Scale is a centimeter ruler with millimeters. A view from above: And from the side: Sorry if the formatting is weird, I'm posting from mobile. Let me know if any more information is needed, and I'll do my best to provide it. Thanks, all!
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Over a week ago I took advantage of our university's Reading Week break to hop a train east to do some late season digging. Apart from a few surprise finds, it did not quite live up to my expectations. I had to hastily organize it as I had got the dates wrong, assuming Reading Week was the following week (one of my students corrected me). It meant getting the trains and motel all lined up with barely a day to spare. Upon my arrival in Toronto for a layover, someone not all together upstairs thought it would be a wise idea to pick a fight with me. I defused the situation, but it certainly help set the tone for this week-long adventure. On the first day of the dig, I ended up walking about 25km for nothing. On the next day I went back to the spot that had been so productive weeks before, but this time it turned out to be the opposite with two exceptions. Unlike last time when cheirurids were popping out like they were going out of style, not even more than a pygidial spine of one this time. Instead, a pair of crappy Flexis:
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Ventrally preserved. Both genal spines and one thoracic spine are present. Hyostome slightly visible. Found associated with T. eatoni, T. rougensis, cephalopods and graptolites.
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- triarthrus spinosus
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Strophomenid Brachiopods from the Dundee Formation, Ontario
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
"Brachyprion sp."? Strophomenid Brachiopod (left-phosphatized) Middle Devonian Dundee Formation Pittock Reservoir Woodstock, Ontario The one on the left was a generous gift from Kane-
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From the album: Middle Devonian
Aulocystis sp. Tabulate Coral Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
From the album: Middle Devonian
Scalaripora canadensis Bryozoans Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
From the album: Middle Devonian
Cyrtina hamiltonensis Spiriferid Brachiopod Tabulate Corals Middle Devonian Arkona Shale Hungry Hollow (South Pit) Arkona, Ontario-
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From the album: Middle Devonian
Heliophyllum halli Rugose Corals Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
From the album: Middle Devonian
Favosites alpenensis Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
From the album: Middle Devonian
Cladopora sp. Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
From the album: Middle Devonian
Cladopora roemeri Tabulate Corals Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
Tabulate Coral from the Dundee Formation, Ontario
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Emmonsia sp. Tabulate Coral Middle Devonian Dundee Formation Pittock Reservoir Woodstock, Ontario -
Tiny Button Coral from Hungry Hollow, Ontario
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Microcyclus thetforensis Button Coral Middle Devonian Widder Shale Hungry Hollow Member Hungry Hollow (South Pit) Arkona, Ontario -
Big Unidentified Bivalve internal mold from Formosa Reef, Ontario
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Unidentified Bivalve Internal Mold Middle Devonian Amherstburg Formation Detroit River Group Formosa Reef Formosa, Ontario A generous gift from Kane