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  1. From the album: Urban Fossils of Toronto (Georgian Bay Formation, Lower Member)

    Pholadomorpha pholadiformis (Hall, 1851). Clam found this December 2014, at Mimico creek, Toronto, Canada. Georgian Bay formation, late Ordovician. Was originally in a nodule that was smashed by the erosion.

    © (©)

  2. JUAN EMMANUEL

    Phycodes flabellus

    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.
  3. So today I was excited when this book came in. It is not in print anymore and I was lucky I managed to order this copy. It talks about the gastropods, cephalopods, and vermes of the Georgian Bay formation of Toronto, Ontario. It even has some nice detailed plates of what can be found in the formation. I never even knew vermes (worms?) can be found in the formation.
  4. JUAN EMMANUEL

    Homotrypa sp. (streetsvillensis?)

    From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)

    Homotrypa sp. (streetsvillensis?, Dyer, 1925) Georgian Bay formation, late Ordovician. Plate of unidentifiable bryozoa. Found as a loose specimen on an exposure on the Credit River at Streetsville, Mississauga, Ontario. Approximately 12 cm long and 10 cm wide. Comes from the Homotrypa streetsvillensis zone layer of fossiliferous limestone full of bryozoans. The layer is around 18 inches to 2 ft thick, as described by W.S. Dyer in his "Stratigraphy and Paleontology of the Credit River" on pg. 50.
  5. JUAN EMMANUEL

    Stromatocerium huronense

    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.
  6. JUAN EMMANUEL

    Favistella alveolata

    From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)

    Favistella alveolata (Goldfuss, 1826) 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.
  7. 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.
  8. JUAN EMMANUEL

    Cyrtolites

    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.
  9. Hello once again! Yesterday afternoon I had the kids to myself so I suggested that we head out to our local site for a little fossil-hunting. Viola was game, as usual, but William wasn't interested. I wouldn't take no for an answer, however, and so we headed off. All in all it was a nice few hours outdoors and, ironically enough, William didn't want to leave when Viola and I were ready to go! Hopefully this means he'll be willing to come along more often from now on. I took a few pictures of our outing - enjoy! Monica Picture #1: Viola leadin
  10. When I found this fossil it has some green algal growth on it as I found it on the grass. The algae did not cover the entire fossil but is there some way I can remove the yellow coating of this fossil? I've been scrubbing it with a brush under running water for a while now and some of the dirt does come off.
  11. JUAN EMMANUEL

    Stromatoporoid Growth Forms?

    Lately if you have seen some of the topics I've started, these trips revolve around an Ordovician reef I came across by the Credit River in Mississauga, Ontario. One of the few things I discovered while exploring these spots is that there are plenty of Stromatocerium sponges which I red is a stromatoporoid. My question is, can anyone lead me to any papers about the growth forms of Ordovician stromatoporoids? I have found specimens of stromatoporoids and from the way I see it, some of the specimens I found of the same species have different growth forms. Some have those things they call monticu
  12. Yesterday, after countless trips and exploring at the same old spots on the Credit River in Mississauga, Ont., I finally mustered the courage to go and wade on the water to an isolated exposure out the Georgian Bay Formation at Streetsville, Mississauga. I wanted to collect fossils that were not worn out as these were all I was finding in my old spots. I have been setting my eyes on this exposure from the other side of the Credit River for some time now ever since I started collecting along the Streetsville area and it could possibly harbour fresh material. The temperature of the af
  13. JUAN EMMANUEL

    Lingulichnus

    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
  14. Hello everyone! Ken @digit suggested that I take a few pictures of the play-date that Viola and I had organized this afternoon with one of her friends from her Spark (Girl Guide for 5-6 year-olds) group, and so I did! Enjoy! Monica Picture #1: Viola looking out at one of our usual collecting sites along Etobicoke Creek Picture #2: Viola and her friend washing off a fossil in the creek Picture #3: Viola showing off the orthoconic nautiloid that she found. It's a fairly large piece of rock, so I asked Viola if she was sure
  15. JUAN EMMANUEL

    Prismostylus sp.. (huronense?)

    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.
  16. JUAN EMMANUEL

    Side Views of the Prismostylus sp. Specimen

    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.
  17. JUAN EMMANUEL

    Favistella sp.

    From the album: Credit River Fossils from Streetsville, Ontario (Georgian Bay Formation, Upper Member)

    Favistella sp. (alveolata or 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.
  18. JUAN EMMANUEL

    Endoceras proteiforme with Endocone Speiss

    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.
  19. 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 rive
  20. Hello once again! Yesterday when I went out with Viola to Mimico Creek in Toronto (Georgian Bay Formation, Upper Ordovician), I found an interesting piece and I'd like your thoughts regarding its identity. The dome-shaped object in the photos below has bumps all over it, and there are tiny pores throughout, so I was wondering if you think it's a bryozoan or perhaps a stromatoporid (apparently Labechia huronensis is a bumpy-looking stromatoporid that can be found in the Georgian Bay Formation, but MANY bryozoans can be found here, too - including on this piece of rock! - so I'm not
  21. 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
  22. Hello all! Viola and I went out to our local haunt yesterday afternoon and we found our usual items, but what follows are pictures of a couple of rocks that are a little different from what I'm used to seeing - your thoughts and opinions are much appreciated!!! Monica Item #1: "front" It looks bryozoan-like, but it's a lot bigger than what I'm used to seeing... Item #1: "back" It still looks like a bryozoan but, again, it's quite a large structure overall (even though the filament-type structures are very thin)...
  23. JUAN EMMANUEL

    Toronto Cephalopod Fossils

    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
  24. JUAN EMMANUEL

    What sort of Ordivician trace fossil

    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.
  25. Hello everyone! I haven't contributed to TFF in a while because I've been pretty busy with work, but I think I have some good news to share: I've finally found a trilobite at Etobicoke Creek!!! I'm assuming that it's an Isotelus sp. - am I correct? Here's a picture of the somewhat big guy: I also found a couple of other things - perhaps a bryozoan? See pictures below: "Front": "Back": As for the item below, I don't even know if it is a fossil - I'm looking for some input: Thanks so much for
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