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Found 269 results

  1. 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 monticules on the surface, and some don't exhibit them at all. Instead these specimens exhibit cracks and splits on the surface of the organism with irregular bumps and overgrowths. I'd like to know what causes this. Some of these sponges, from what I have collected, colonize some pieces of Prismostylus on the top.
  2. 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 afternoon was around 16-20 degrees Celsius so the water was not chilly as I was expecting it to be. I crossed the water barefoot with the water reaching up my knees at this tributary that separated the exposure from the main path. The Credit has many tributaries flowing and where the these tributaries converged the river, many exposures can be found along these places. After crossing I reached the other side without slipping on the slimy bottom. The exposure had thin footing for exploration but I was able to walk back and forth without slipping onto the water.
  3. Fossil ID: cephalopod?

    Hi Can you confirm that this is a cephalopod? if not what is that? Found on the lake Ontario Canada shore - region Mississauga
  4. Toronto Conularia

    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.
  5. Amecystis laevis

    Amecystis laevis (Ulrich and Kirk, 1921). Upper Bobcaygeon Formation, Middle Ordovician. Simcoe County, Ontario, Canada. This specimen is among the ten specimens on a hash plate that was won in a bid and bought over Ebay. The specimen is missing the two tentacles at the top of the head. Length of the specimen was measured by using a measuring tape.
  6. 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
  7. Favistella sp.

    From the album Georgian Bay Formation (Upper Member) Outside of Toronto, Ontario

    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.
  8. Side Views of the Prismostylus sp. Specimen

    From the album Georgian Bay Formation (Upper Member) Outside of Toronto, Ontario

    Side view of the Prismostylus sp. specimen. Credit River near the Streetsville area, Mississauga, Ontario. Georgian Bay Formation, Streetsville Member. Late Ordovician.
  9. Hi everyone! Well, Viola and I have officially expanded our fossil-hunting area to include Hungry Hollow!!! We joined in on a field trip organized by the Niagara Peninsula Geological Society this past Saturday, April 29th, and we spent 3 fairly cold and windy hours scouring the South Pit for fossils. Luckily, the pit's rocks are incredibly fossiliferous, so we came away with many specimens. Here are a few pictures of our adventure... Picture #1: Viola in the centre of the pit, looking for little things like brachiopods and bactrites: Picture #2: Viola at the side of the pit holding up her favourite solitary rugose coral: Picture #3: Most of our haul for the day: Picture #4: Some nice hash plates from the pit, mostly containing brachiopods and Tentaculites sp.: Picture #5: SO many rugose corals in the pit!!! Picture #6: A bunch of things, including brachiopods (Mucrospirifer arkonensis and others), crinoid bits, bryozoans, corals, smaller hash plates, and my favourites: pyritized bactrites: Picture #7: A pretty star-shaped encrusting bryozoan (Botryllopora socialis) on the side of a rugose coral: Picture #8: Some organisms on a Mucrospirifer arkonensis - perhaps a couple of gastropods or ammonoids, a bit of encrusting bryozoan, as well as a couple of tiny ostracods (maybe): Picture #9: An Eldredgeops rana cephalon (partial): Picture #10: A trilobite pygidium - it's orange and oh-so-cute!!! I have to thank @Bob for showing Viola and I around the pit, and telling us about the fossils that we were finding - he was an amazing help!!! We had such a great time - hopefully we'll be able to visit again soon!!! Monica (and Viola)
  10. Found this large broken tooth turned up in a agricultural field, 1/4 mile from a large river. the tooth is 2.5" long & i would say that the broken root end was probably an inch longer. Any help would be appreciated. Found in SW Ontario, Canada.
  11. Junk is not always junk

    Well I went out collecting on Saturday which turned out to be a cold and windy day. Got there after a two hour drive at about 7:45. Was too cold overall with the windchill, ended up leaving about 2:30, usually stay till about 4:00. I was pretty disapponted on the day as I only brought 5 pieces of matrix home with me. My two regular collecting buddes had no better luck (perhaps even less) than I did. One of them even gave up at 11:00 which was very unusual. For me, a crappy disarcticulated isotelus about 2 inches long but it had a nice cephalon with perfect eyes. A starfish which now that I look at it under a bright light and scope is probably a species I have never found before and two cute little hash plates with a bunch of cephalons from Flexi and calyptalaux on them. What actually made my day now that I have finished prepping it is a split that I did that showed the outline of a trilobite. In the field under cloudy conditions I thought it was perhaps a flexicalymene (nothing to get excited about) although it was fairly large and prone. Here is what it looked like before any prep. You can see why I was not too excited, it is not much to look at. I should have recognized in the field that this was a ceraurus with some potential but being a dull cloudy day it went into the bucket with little thought as to it being anything good. Well at 10 minutes into the prep using dolomite <325 mesh abrasive in a Comco air abrasion unit at 30 PSI with a .018 nozzle it was obvious that it was a ceraurus and if the pygidium was there under all the matrix then probably a fairly nice one. Usually the ceraurus found at this location are not buried in the matrix and are very flaky. Here is the bug at 10 minutes of prep. Definitely starting to show some potential
  12. Fossil leaf? Niagara, Ontario, Canada

    I'm new to this forum but thought you might be able to help. I found this fossil near to the whirlpool rapids in the Niagara River gorge in southern Ontario, Canada. As far I can figure out this looks like a leaf, perhaps some sort of angiosperm. It is a few centimetres long. However, the geology of the area is almost completely Silurian rocks. This wasn't found in situ so could be from rocks in the cliffs above, younger rocks no longer found in the area or introduced by people (unlikely). So two questions really. 1. Type of fossil? 2. Geological time period/range of fossil? Thanks!
  13. Are there any theropod dinosaur fossils that can be found in Ontario, Canda that is in a public collecting site that is Legal? examples of theropod dinosaurs: tyrannosaurids, dromaeosaurids, etc.
  14. The day began with a morning hunt at my honey hole at "riprap hill," and I was pretty much skunked. I think, after four years, I've picked the place over. There is virtually nothing left for me to split, and given a mild winter, nothing new has weathered out. But I at least was graced by the sight of the living in the form of this majestic animal: image.jpg_1
  15. First Timer

    Well every now and then you get lucky and don't even realize it. Was out collecting on Sunday and found what I thought was a few exposed spines of a meadowtownella trilobote. To my surprise when I got home and prepped it , turned out to be something totally different.. Trilo was prepped using 200 mesh dolomite at 20 PSI with a .015 nozzel. Prep time about 15 minutes, very fragile but no consolidant , glue or restoration. Drumroll... as I have never found this species before at this location or anywhere else..... This was found on the surface of a good thousand pound slab in a recent blast pile from the upper part of the verulam exposure at this quarry. Thankfully I had lugged my diamond saw down to the bottom of the pit otherwise this fella would have ended up in the crusher. My buddy Northern Sharks was at the quarry hunting the upper level and never made it down to the bottom (a long trek). I had commented to him over email that I had had a so-so day getting 5 or 6 trilos but nothing spectacular. Now that this is prepped I have changed my mind... I now rate it as a pretty good day. (also found a couple of isotelus, a couple of ceraurus, a very nice syringocrinus and a flexi) I believe it to be an inverted and essentially complete Hypodicranotus striatulus (Walcott) (perhaps pirahna will jump in here with his expertise Notice the partial hypostome whose shape is quite indicative of this species. In fact I may actually have another hypostone in a hash plate matrix that I found a few years ago in the same general that I thought came from a septapsis Trilo is 21mm long by 15.3mm wide
  16. 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 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.
  17. First Ebay Acquisition

    I was very happy to have my first ebay bid won and this plate was what I got. I've always wanted some fossils from the Lake Simcoe area but I never had the capacity to travel outside that far out of Toronto. Apparently there are two types of cystoids on this plate. This plate comes from the Upper Bobcaygeon formation, Ordovician period from Simcoe County, Ontario. It's a very different fauna from what can be found here in the bedrock of Toronto. Cystoids don't occur in the Georgian Bay formation. Paying for this plate took a bit of a hit on my wallet but I think I think it's worth it considering that I don't have anything like this in my collection.
  18. Gigantic Devonian Monster Worm Discovered

    400 million year old gigantic extinct monster worm discovered in Canadian museum University of Bristol, February 21, 2017 https://www.sciencedaily.com/releases/2017/02/170221095643.htm https://phys.org/news/2017-02-million-year-gigantic-extinct-monster.html http://www.bris.ac.uk/news/2017/february/giant-worm-fossil-.html Mats E. Eriksson, Luke A. Parry, and David M. Rudkin, 2017, Earth’s oldest ‘Bobbit worm’ – gigantism in a Devonian eunicidan polychaete. Scientific Reports, 2017; 7: 43061 DOI: 10.1038/srep43061 http://www.nature.com/articles/srep43061 Yours, Paul H.
  19. Fossil Hunting Near Perth, Ontario

    Hi everyone, I'm brand new to the world of fossils. I didn't even know that you could own a fossil until recently. So far, I have a couple of ammonites and trilobites that I've bought off ebay. I was wondering if anyone knows of anywhere near Perth where I could go looking for fossils. I would love to find one of my own. Thanks so much, Erin
  20. Found in dry river bed of Etobicoke creek, Toronto, Ontario, Canada (upper ordivican) 2 pics here are both sides of the rock the size is roughly 4cm by 5cm.
  21. Is this a spinal column?

    I have no idea what I'm looking at, but it seems to resemble a spinal column. It was found near Keswick, Ontario, Canada.
  22. Craigleith assemblage

    Hi! We were at Craigleith, Ontario (Ordovician, lower Whitby formation) today for a toddler's fossil hunt birthday party, and found this neat assemblage of brachiopods, bivalves, and (I am guessing) trilobite bits. At least, they look trilobite to me, but I was hoping someone would be able to explain them. Are they curled up? Could they be part of the larval stage? Something else entirely? I didn't get a scale shot but by my memory I'd say the bits I am trying to figure out are <5mm across each. Thanks! Gavy
  23. Formation ID - -SOLVED!

    I am in the process of writing up a small piece for the university paper with a focus on some of the fossils that are part of the landscaping and architecture. Whereas the landscaping features are all identifiable as local Dundee Fm, I lack the knowledge to pinpoint the formation from which these rocks were quarried, and my investigation has yielded nothing to determine these details. The building was erected in 1993. The limestone used contains several corals (rugose and colonial), some substantially sized gastropods, and nautiloids. It is a light beige, very much mottled by the presence of numerous corals and Thalassinoides. I have my doubts that they would have trucked in the materials from out of province (it is a fairly large building). I am providing a few pictures here and can provide more if needed to ID this formation. The building itself has alternating bands of roughly hewn and saw-cut finished limestone. Some of the specimens in it can be quite large, and a few of the nautiloids present clearly show the siphuncle. I'm not sure if this will be enough to get a more precise ID on the formation, but I appreciate any help! EDIT: Selkirk Member of the Red River Formation, Orodovician. Quarried in Manitoba.
  24. Hello everyone! I went out to my local haunt this past weekend, hoping to find a trilobite, and instead I found another specimen that I had not found up until this point - a coral! It was found at Etobicoke Creek, Georgian Bay Formation, Upper Ordovician. I'm thinking that it is a solitary rugose coral - confirmation of this, or a correction if I'm incorrect, would be greatly appreciated! Here are two pictures of the 5cm X 2.5cm specimen: By the way, would it be possible to identify the specimen down to genus or even species, or (a) is it too difficult to fully identify rugose corals without taking sections, or (b) is my particular specimen too squished to be able to identify it any further? Thanks for your help! Monica
  25. Conularia formosa

    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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