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Hi guys, I visited Mimico Creek 2 days after the Canadian Thanksgiving this October which also happened to be a really hot day, which was perfect for exploring. During my time hunting the Georgian Bay Formation of Toronto I would come across these exposures that look “folded”. Does anyone happen to know as to what this really is? Here is a pic I took on that trip I mentioned to show as an example. I would find the same distortion in other parts of Toronto, not just in Mimico Creek, but also in places like along the Humber River and Etobicoke Creek.
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From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Rusophycus osgoodii (author unknown). Found in the Humber River area, Etobicoke, Toronto, Ontario. Georgian Bay formation, Lower Member. Late Ordovician. Trilobite burrow on a limestone with other trace fossils. Dime shown to show approximate size. -
Hello there! Yesterday, Roger @Ludwigia dropped by for a visit, and we spent the day together checking out my local haunts with Viola. The day started with some coffee and brownies, as well as lovely German gifts from Roger: a Macrocephalites sp. ammonite for Viola (I don't have a picture of it because it's up in her room) and a Brasilia bradfordensis ammonite with a hitchhiking bivalve on the back of the matrix for me!!! See pictures below: We then piled into my car and drove to our first spot: Mimico Creek in Toronto. The fossils here are from the Georgian Bay Formation (Upper Ordovician). Here's a picture of Roger and Viola checking out the site... And one of Roger wielding his hammer... Since I'm still nursing my "fossil elbow", I didn't want to hammer anything; instead, I scraped into the wall of rock and I'm happy to say that I found a couple of sweet little bivalves: one with its two valves partly open (too bad that it's not complete) and another one with some nice ornamentation visible on its shell... @Wrangellian - what do you think? Roger did a little exploring and found some fossiliferous rock further up the wall - I collected two fairly big pieces of this type of rock and, lo and behold, they contained a bunch of brachiopods and their imprints (along with some other goodies)... @Tidgy's Dad - I thought you might like to see them
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- etobicoke creek
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Etobicoke Creek, Marie Curtis Park Beach Find - please help ID
cheeseburger posted a topic in Fossil ID
I found the first two of these pictures in the river bed of Etobicoke creek, Toronto, Ontario, Canada, and the final picture is of one I found at the lakefront of marie curtis beach park. I have tried looking online and read they might be from ordivican? but I really have no idea! new to fossiling -- but definitely interested in learning more!
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I pulled this one out of a creek bed a couple weeks ago but cant narrow it down. Any ideas? Its from the Georgian Bay fm (Upper Ordovician) Forgot to add: the specimen is ~5cm/2 inches in length
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Hello, I want to put together some pics of some of the reef material that I have found in Streetsville, Mississauga, Ontario on the banks of the Credit River. It is now winter and I am missing the warm days in which I can go and wade in the warm waters of the river for fun. I just want to compile and share some specimens that whose photos I have not shared with. All the fossils belong to the Georgian Bay formation, Upper Member, which is late Ordovician in age. First is the common coral that displays an enormity of growth forms, Favistella alveolata (Goldfuss, 1826).
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From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Lingulichnus verticalis (Hakes, 1976). Humber RIver area, Toronto, Ontario, Canada. Late Ordovician, Georgian Bay formation, Lower Member. Oblong to tear shaped burrows made by linguliid brachiopod, species unknown. Approximately 15 cm across. -
From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Phycodes flabellus (Miller and Dyer, 1878). Georgian Bay formation, Lower Member. From the Humber River, Toronto, Ontario, Canada. Late Ordovician burrows organized in a flabellate pattern. Approximately 10 cm across and in width. -
Hiya I just found this tooth it is 4cm long on the earth of a house Reno. My guess was a bison but we are in Toronto Canada not many bison here. How old is it? What mammal is it? Please help solve the mystery
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Conularia formosa (Miller and Dyer, 1878). Specimen with a positive and a negative counterpart (matrix). Found while smashing a limestone layer at Mimico Creek, Toronto, Ontario. The matrix of the Conularia has the negative on it, as well as bryozoan bits. Bibliography: Ontario. Department of Mines. The Stratigraphy And Paleontology Of Toronto And Vicinity.
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- georgian bay formation
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Lingulichnus verticalis (Hakes, 1976). The elliptical shaped and concave burrows or holes were made by a linguloid brachiopod burrowing in the sediment. I took this plate home as I have never seen so many Lingulichnus burrows on one plate. Rock is limestone and was most likely mud before it lithified. Bibliography: Systematic Ichnology of the Late Ordovician Georgian Bay Formation of Southern Ontario, Eastern Canada, 1998, by D. Christopher A. Stanley and Ron K. Pickerill
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I found this crinoid head on a limestone that belongs to the Georgian Bay Formation, late Ordovician, today at the Humber River in Toronto, Ontario. Is this crinoid a Cincinnaticrinus or a Glyptocrinus? I have included a nickel for size reference.
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Endoceras proteiforme with Endocone Speiss
JUAN EMMANUEL posted a gallery image in Member Collections
From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Endoceras proteiforme (Hall, 1847) with a conical endocone speiss. Found in Mimico Creek, Toronto, Ontario. Georgian Bay Formation, Humber Member, late Ordovician, Katian. Length is approximately 2 feet long. This specimen is a fragment of the larger body. -
Yesterday on April 24 I decided to go and visit a place in Mississauga, Ontario called Streetsville which used to be a township of its own before being joined to Mississauga to form the City of Mississauga. I took public transportation to get there and it took me about 1.5 hrs to get there. I went to the Credit River near Streetsville and explored the banks. I had trouble finding a natural exposure as all I was finding were banks with worn out rocks and silt. The river's bottom does not have the same clarity as the Humber River in Etobicoke as I could not see the shale bottom of river. All I was seeing at the Credit's bottom were worn out rocks, algae and silt. The river was also wider than the Humber and in some places it seemed deeper as well which made me think twice about crossing to reach this natural exposure I found. The banks mostly had worn rocks but some nice material can be found. I was surprised at the fauna I found. The rocks are still part of the Georgian Bay Formation but the fossils are completely alien to my eyes. They were nothing that I usually encounter at the Humber River or at Mimico Creek. The place was littered with small coral bits and there lots of what appeared to be Tetradium bits. There also many brachiopod hash plates around. This hash plate here has a piece of coral at the bottom along with many brachiopod bits. There were some things familiar to me like that hash plate of bryozoans and I only found one cephalopod fragment. Where I usually hunt cephalopods are very common to find in Mimico Creek and at the Humber River. There were also these odd trace fossils lying around.
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Hello once again! Viola and I went to a new location for a little fossil-hunting this afternoon, and we think that she may have found a rough-looking trilobite - what do you think? We found it by Mimico Creek in Toronto (Georgian Bay Formation, Upper Ordovician). It's in a massive piece of rock so if it is indeed a trilobite then we'll have to find a way to cut the rock to save only her little treasure Thanks in advance! Monica
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Hi guys I just wanted to share some of the more interesting and unusual cephalopods that I've managed to amass over the past and nearly 4 years of hunting along the creeks and rivers of Toronto, Ontario. I was cataloguing them on my computer and I figured out that I might as well share them. The ones below all came from Mimico Creek. All the fossils belong to the Georgian Bay Formation, and are Late Ordovician in age. A Treptoceras crebispetum (author unknown) covered in an unidentified bryozoan. Length is around 15 cm. My first complete specimen and the same species as above. Complete ones like these found in the shale are often squashed. The body chamber is intact and the specimen approaches nearly 40 cm in length. The smallest complete specimen of the species that I have. This has the body chamber. Length is approximately 10 cm.
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Hi guys I found this trace fossil some days ago and I find this fossil a bit puzzling. I have no certainty as to what creature could have made this. This fossil is from Mimico Creek, Toronto, Georgian Bay Formation, Humber Member, late Ordovician.
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From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Found at Mimico Creek, Toronto, Ontario. Late Ordovician period. This specimen is a positive with a negative counterpart on limestone. This was also found along with a bunch of other Conularia specimens back in the end of Summer at 2015. -
A tergomya mollusc that can be easily found in the Humber Member of the Georgian Bay Formation in Toronto. This one is set on a limestone hash plate dominated mostly by pelycopods. On a personal experience I have come across more Cyrtolites specimens than gastropods at Mimico Creek. Reference: Ontario Department of Mines. The Stratigraphy And Paleontology Of Toronto And Vicinity.
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A brachiopod that occurs in the Humber Member of the Georgian Bay formation. The species has a sulcus that distinguishes it from the other anazygid brachiopods of the member. Reference: Ontario. Department of Mines. The Stratigraphy And Paleontology Of Toronto And Vicinity.
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It has been reported that complete specimens of this species is rare to find in the formation. The Royal Ontario Museum is said to contain many partials and most come from the former Don Valley Brickyard in Toronto. This specimen was found in Mimico Creek. To see details up close please click the full size button. Reference: Ontario. Department of Mines. The Stratigraphy And Paleontology Of Toronto And Vicinity.
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On Monday Sept. 12 I had some chances to explore zome of parts of the Humber river in Toronto, Ontario, because soon the weather will turn colder and the river waters wont allow exploration. I was walking at a certain part of the Humber river above Bloor St. when I noticed that I could actually see the river's bottom which is made of up shale bedrock. I decided to check the banks from the water. The pictures below were taken when I was in the middle centre of the river where the waters reached up only knee high. Below Bloor St. the water got mucky and there are several marshes lining up the banks of the river. I didn't see any exposures of the Georgian Bay formation at this part and instead I chose to walk north. In addition to discovering the shallowness, I also saw a potential exposure of the Georgian Bay formation, although the exposure could use more erosion to remove all the debris. The area where I discovered the exposure is in a park where all the banks got bulldozed several decades ago to control erosion, which covered most exposures at this park. The exposure revealed limestone layers interbedded with shale. Some of these layers got thicker than 15cm. One limestone layer was fossiliferous which I thought could make some nice hashplates. This limestone layer contained gastropods possibly Hormotoma (?). I have discovered a tiny gastropod hash plate once in Mimico Creek back in 2014 near the mouth. There were also plenty of pelycopods in the layer. I could not recall finding any cephalopods in the entire length of the exposure. A piece of gastropod hash plate I took home. The shells are preserved as internal molds. A Cyrtolites ornatus. I found 2 of these and this was the one I took home. A piece of ramose bryozoa.
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From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Conularia fomosa (Miller & Dyer, 1878). Separate specimen from the previous one but unlike the previous this one is a positive and is 3D but compressed flat. This was found less than 2 feet away from the first one. Found in Mimico Creek limestone of the Georgian Bay formation. Late Ordovician, Toronto, Ontario, Canada.© (©)
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From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)
Fossil driftwood from an unnamed tributary that feeds into Highland Creek. Top photo is top side, bottom is the bottom view. Scarborough formation, Early Wisconsinan, Pleistocene. Found on an outcrop of the creek near Progress Drive, Scarborough, Toronto. Finally! I determined what the outcrop was. Does anybody else in the forum have hunted or hunt in the Pleistocene of Scarborough?© (©)
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This week I got my monthly TTC Monthly Metropass for the first time ever and so with this card in my wallet I was excited that I had unlimited freedom to use the transit to go wherever I want in the city of Toronto for the whole September. Yesterday, while travelling with my card in wallet in Scarborough after finishing an assessment, I came across a creek right at Progress Drive and went down to explore it, in hopes of coming across the Whitby formation. I had seen bits of information regarding outcrops of the Whitby in Scarborough on the net, and I took this opportunity to explore as I live far away from Scarborough. I went down on a driveway I found behind a building and descended below to the bottom. From the edge of the creek I saw no exposures of the Whitby formation but instead saw outcrops of sand, a bit similar to what I saw at the Don Valley Brickworks. Some of the outcrops' bottom were ridden with overgrowth, so I chose the one that had the least, which was this one. The highest point of this outcrop would be around three storeys high and streches for several metres. There's also a substantial sediment material that has fallen off at the bottom and the vegetation on the bottom isn't as thick.
