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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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How much money is a normal sized orthocone fossil
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Hello, I'm a new member and would appreciate some help ID'ing the following imprint, found along the Credit River in Mississauga, Ontario. Thank you!
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So I have been looking at my collection and it baffles me whether these two specimens are the same species with just different growth forms due to their deposition environments or are they entirely different species from each other? These stromatoporoids both come from the same locality (Streetsville, Mississauga, Ontario) in the Upper Member of the Georgian Bay formation, late Ordovician. Can anyone provide me with any PDF on late Ordovician stromatoporoids so I can nail down the differences between Stromatocerium and Labechhia? On the site where I collected these, I have also found mounding round stomatoporoids ranging around 4 inches to over 1 ft in diametre. I think this must be Stromatocerium. With the stromatoporoid with the prominent mamelons I have found it encrusting Prismostylus sp. specimens on the locality (what an odd association). This stromatoporoid, from my experience with the locality, usually just grows over the size of an open hand. Is this Labechia, the one with prominent mamelons?
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From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Favistina calicina (AKA Favistella alveolata) (Nicholson, 1875). Late Ordovician, Katian. Georgian Bay Formation, Upper Member. Credit River, Streetsville, Mississauga, Ontario, Canada. Found as a loose specimen on an exposure along the Credit River. Set on fossiliferous limestone.- 1 comment
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Unknown item (sponge?) from the Credit River in Mississauga, Ontario
Monica posted a topic in Fossil ID
Hello there! Last month, I visited the Credit River in Mississauga, Ontario, Canada (Georgian Bay Formation, Upper Ordovician) to look for some fossilized corals. In addition to a bunch of weathered colonial rugose corals, I found an item that I think is something, but I'm not sure what - perhaps a sponge? Here are some photos of it: Side view - dry: Top view - dry: Top view - wet: Thanks so much! Monica- 10 replies
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Hello there! I was inspired by @markjw to check out the Credit River here in Mississauga, Ontario (Georgian Bay Formation, Upper Ordovician) because where I normally hunt there are typically no corals and I'd love to add a couple to my collection. Consequently, I went out for about an hour this morning before the family got up in order to try my luck, and I'm happy to say that I was successful!!! Based on information provided by @FossilDAWG in other threads here on TFF, I think all of my colonial rugose corals are Favistina calcina - here are photos of three of my specimens: Specimen #1 - side view: Specimen #2 - top and bottom views: Specimen #3 - top and bottom views: more to come...
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So many Georgian Bay fossils recently...can't keep up with cleaning
markjw posted a topic in Paleo Re-creations
If I had 2 weeks of vacation, I still wouldn't be able to catch up with cleaning, identifying, sketching, photographing, and organizing the recent minor finds.- 4 replies
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From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Stromatocerium huronense (Billings, 1865) Late Ordovician stromatoporoid sponge. Found along the Credit River at Streetsville, Mississauga, Ontario. Collected as a loose specimen, most likely coming from the Stromatocerium reef of the exposure this came from. Georgian Bay formation, late Ordovician. There is a tiny Favistella alveolata coral colony growing on the edge of the specimen, perhaps this was a commensalistic relationship? Specimen is 12 cm long. However this species in the exposure where it came from can grow beyond a foot in diameter as mounds.-
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From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Prismostylus sp. found near Streetsville, Missisauga, Ontario by the banks of the Credit River. Top view of specimen. Georgian Bay Formation, Streetsville Member, late Ordovician, Katian. Formerly called Tetradium, this algae was very common to find in the locality I found this in. Small fragments of this algae can be observed on the limestone but I have seen some specimens that are wider than 20-25 cm in diameter. This specimen is a fragment and is around 15 cm at its widest point.-
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Side Views of the Prismostylus sp. Specimen
JUAN EMMANUEL posted a gallery image in Member Collections
From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)
Side view of the Prismostylus sp. specimen. Credit River near the Streetsville area, Mississauga, Ontario. Georgian Bay Formation, Streetsville Member. Late Ordovician.-
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