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  1. Hello to all! Hope everyone is doing well, cause after my recent finds I am definitely doing well . So a little backstory: 10 years ago in grade school when I used to collect fossils with my father, we would never find any good fossils in shale. Always layer upon layer of the bland gray rocks with nothing even close to a fossil. For the longest time I never even bothered glancing at the large sections of shale dotting the many rivers of Toronto. jump ahead to the beginning of the month when I read some posts from @JUAN EMMANUEL showing some very nice nautiloids from shale. At first I didn't think anything of it and figured I'd never find anything THAT nice in shale. But, jump to a week later: While exploring a new location, I happen across a large section of layered shale on the riverbank and figured I'd try my luck - and started doing some digging. I pretty quickly came across a shell. A second shell. Then a third, fourth, fifth, and after chipping back the layer I found dozens of very tightly knit shells to my surprise. I was shocked to find anything after thinking for years that Toronto shale held almost nothing of interest. But still - they were ambonychia shells which I already have plenty of in my collection. So I keep looking around and chipping away at other layers, thinking maybe I'll find something a little more exciting. An hour goes by while digging in a somewhat awkward position, and my legs start to fall asleep so I readjusted my legs and out of the corner of my eye I noticed something right near my knee. My heart absolutely skipped a beat as I realized what I had found: A perfect and complete trilobite in the shale. After taking a closer look I realized there was in fact TWO of them right near each other! I hadn't found a trilobyte of this quality since grade school when I used to go with my father - let alone two. I just sat there for about 2 minutes staring at them, thinking they were going to shatter as soon as my pick got anywhere near them. Ultimately, luck played in my favour and the trilobites came out perfectly! But, the story doesn't end there, oh no! So now I'm going back to all these old places, primed with the fresh new knowledge of how to hunt shale. Although the work is pretty messy and uncomfortable, it seems to pay off quite nicely. And before I know it, a couple days later I end up finding yet another trilobite. But the crown jewel of the month came last weekend when I found two different nautiloids - one being an absolute MONSTER specimen, and the other being my most complete nautiloid ever (it even included the tip at the very end!). I just gotta give a big thanks to the people on this forum. Without the knowledge shared on this forum, I would likely have still been stuck in my ways avoiding any piece of shale in sight. I also have also included some other fossils that I found this month. [All fossils found in Humber, Etobicoke and Mimico river/creeks riverbanks - located in Toronto ON, Canada // Georgian Bay Formation // Ordovician (485.4 - 443.8Ma)] The first set of trilobites In Situ from humber river. The first two trilobites on the left and the later one on the right. The many pieces of nautiloid that came out during extraction. They unfortunately broke VERY easily so I figured there was no point stressing about it coming out in less than a dozen pieces. Here is what it looked like when all the pieces were assembled together (with the help of a little super glue of course). It even seems to have the very tip of the nautiloid as well (which would be a first for me)! here are a couple other decent pieces I found as well:
  2. Hi everyone! I found this piece yesterday at my new spot along Etobicoke Creek here in Mississauga, Ontario (Georgian Bay Formation, Upper Ordovician). It's a bryozoan of some sort with some crinoid stems on it, along with an imprint that I think is either a Cruziana ichnofossil or a weathered crinoid stem imprint - what do you all think? I've boxed the imprint in red. Thanks in advance! Monica Views of the imprint: View of the other side of the rock/bryozoan: Close-up of the bryozoan:
  3. Hello once again! Upon closer examination of some items I recently collected from Etobicoke Creek in Mississauga, Ontario (Georgian Bay Formation, Upper Ordovician), I have found a couple of items I'd like your thoughts on. Item #1: Found on the same rock as a monoplacophoran (Cyrtolites ornatus), the unknown item is tucked underneath some matrix: View of the whole rock: Close-ups of the unknown item: Continued...
  4. Hello! I recently decide to split a fossil that seemed to have the edge of a shell poking out. To my surprise, it split open to reveal something I have never seen before in all my years hunting in Toronto. I thought perhaps it might have been the head of an unusual trilobite, but I am not convinced for sure. It was found on the riverside deposits of Etobicoke creek in Toronto, Canada, which is part of the Georgian Bay formation. Let me know what you guys think @Malcolmt @Monica @JUAN EMMANUEL:
  5. Oye I managed to get my hands on some very rare stuff (at least in terms of my local area) while hunting this last month in the Georgian Bay Formation in Toronto, Canada. Some of these fossils have been some of the nicest I've ever found, and will probably look even better with a little cleaning. Let's start things off with the usual nautiloids with a side of bivalves: Treptoceras crebriseptum I love these plates so much - they are currently some of my favourite fossils in my whole collection at the moment Treptoceras crebriseptum for the first three, the one on the far right might be a different species as it has a unique spiralling pattern.... Some MASSIVE nautiloid chambers, the biggest I've ever seen!!! A bunch of Rafinesquina brachiopods (I think). These are usually somewhat rare but I've found a lot recently so that is pretty cool A couple Ambonychia and what I believe are Pholadomorpha pholadiformis. A close up one the Pholadomorpha pholadiformis in the middle - one of the most exceptionally well preserved specimen I have ever seen!!!!
  6. Hello all! So I've been looking through my collection and noticed a bunch of fossils that I haven't yet identified yet. Some of them are quite peculiar, as I've never seen some of them until now. This'll be a long post with 12 different fossils in need of a name so brace yourselves hahah: All fossils found in Toronto creeks - Ordovician Era - Georgian Bay Formation 1. I thought this was the typical Treptoceras crebriseptum that I always find at my local creek, but when I cracked it out from the matrix I noticed it was perfectly smooth. Maybe its the living chamber of the nautiloid? 2. I honestly have NO clue what this is. Never seen anything like it. I thought it was nothing, but it seems to have such a defined symmetrical shape... ...
  7. Hi everyone!!! I had the afternoon to myself today because William and Viola are at day camps this week and my husband was busy, so I decided to check out Mimico Creek (Georgian Bay Formation, Upper Ordovician) by myself for a couple of hours. I didn't make many finds, but the finds I did make were super-amazing (by my standards, anyway ). As I was walking along the creek when I first arrived, I was checking out the wall of rock when I noticed a pattern: After gently prying out the rock, this is what I found: Hooray!!!!!!!!!! My first Flexicalymene granulosa!!!!!!!!!! For those of you who have read my trip reports and ID requests in the past, especially when I first started fossil-hunting in 2016, I always went out hoping to find a trilobite, and today I succeeded!!!!!!!!!! I then spent about an hour mucking about, not finding much, when I decided to hammer a big slab of rock that had some worn bivalves on the surface. Lo and behold, hidden underneath that layer of rock was the most beautiful Treptoceras crebriseptum orthoconic nautiloid that I had ever seen!!!!!!!!!! The bottom part of the fossil doesn't appear to have septal divisions, and it's a little flatter than the rest of the fossil - could it be the living chamber?!?!?! I cannot believe my luck today - this has been my best day of fossil-hunting in the Toronto area in the past 3 years!!!!!!!!!! I'm so excited!!!!!!!!!! I do have to play it cool at home, though - I don't want Viola to be disappointed that she missed out (I haven't yet told her what I did today - it'll be a secret for a while). @JUAN EMMANUEL @Wrangellian @Ludwigia @Malcolmt - I thought you might like to see
  8. Hello to all! Its been a very long time since I've been on here, but my recent trips around the creeks in Toronto, Canada (in the Etobicoke area) have yielded some of my largest and most defined finds of all time, here are some of the nicest Orthoconic Nautiloids I had found yet: Probably the nicest one in my collection at this moment, found almost completely by fluke when I hit a rock with my pick and this bad boy showed up Imprint made by the previous one These last couple would be way nicer, if only I could find a way to get it out of the rock matrix without completely destroying the specimen :/ ... Anyways, it good to be back and hunting this summer after a somewhat stressful finals season. I also have wayyyyyy more stuff that I found such as some unusually large and defined bivalves and tentaculites (maybe?), but I might save those for another time as they definitely weren't as cool as these ones. All were found along river rock deposits In the west side of Toronto (Etobicoke, Humber and Mimico creek) - Georgian Bay formation, excavated using rock pick and chisel.
  9. Hello all! Here are some of my my favourite scenery and fossil pictures from the last few weeks! Decided to hit up some new spots way up in the north end of Toronto along the Humber river - which yielded some very nice shells and crinoid segment (instead of the usual nautiloids). I'm in the midst of getting the weird nautiloid section so stay tuned: Lets kick things off with a couple very pretty shells and crinoids from the north end trip: the 7 shells from the left are Ambonychia, with the two black right shells being Pholadomorpha pholadiformis (I believe). Some crinoid segments on the far right These Ambonychia shells were definitely my favourites of the bunch^ When it comes to crinoids, this is about as good as it gets here in Toronto!!!! Almost nobody finds calyxes here, so this is about as good as it gets!
  10. Hi all! I ventured out to Mimico Creek in Toronto, Ontario today to look for fossils. It was very cold and the rocks were frozen together, but I managed to pry out one large rock that has some interesting fossils on it. The fossils are from the Georgian Bay Formation (Upper Ordovician). The rock caught my eye because I could spot a few Cornulites flexuosus on one side, but after I brought it home and washed it, I was pleasantly surprised to find that the other side had even more interesting items on it! I'm not exactly sure of what I'm looking at, though, so I'm asking for your help. I'll tag @FossilDAWG since he's quite knowledgeable about fossils in my area Firstly, here's the whole rock so you can get an idea of the size of the fossils within the rock (i.e. they're generally quite small): Now on to the fossils! Here are some shiny black items that I've never seen before, but they look like scolecodont Oenonites sp. - what do you think? (I only circled the items that look sharp enough to be identified - the other black items I'm very not sure about!) Here are a couple of long, thin, and delicate-looking crinoid stems - can they be identified at all? Perhaps something like Ectenocrinus simplex (which does occur in the Georgian Bay Formation)? (The second one is located between the branching bryozoans which I think may be the bryozoan Homotrypa sp.) More to come...
  11. Hello! It was found in the Georgian Bay Formation - Ordovician period, in West Toronto. It was found after cracking some rocks on the riverbanks of Etobicoke creek. I recently came across a rather peculiar fossil, I initially though it might have been an ammonite, but those didn't exist until much later than the Ordovician period. It seems to be slightly ribbed, with a bit of a spine.
  12. Hello again! Sorry for the constant posts, but I've been finding a lot of amazing stuff recently! Anyways, as the title says, this was probably one of my best hauls ever for a single day! I managed to find over a dozen different nautiloid chunks and was able to extract toooooons of super well defined and complete brachiopods from a matrix piece!! This will be another 3 part post as i have lots of pictures: Here was the full haul for the day, with ruler for reference (notches in cm). Here are some alternate angles of the nautiloids. I going to assume/believe they are mostly, if not all Treptoceras Crebriseptum, but if anyone notices any different species I'd be glad to know! some nice crinoid stem segments, a Pholadomorpha Pholadiformis and Ambonychia plate, and another decent nautiloid.
  13. JUAN EMMANUEL

    Treptoceras crebiseptum orthocones

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

    Treptoceras crebiseptum specimens. The one on the left comes from Mimico creek. The blue grey one on the right is covered with bryozoans and comes from the Humber river area and is complete is actually missing the living chamber. Both belong to the Georgian Bay Formation.

    © (©)

  14. Emthegem

    Another classic trip

    Another decent haul over the last few days. Bunch of nautiloids and whatnot, a couple mussels. These were my favourites from the last 2 days in the river. This was a biiiiig nautiloid, and after cleaning it I realized there were two of them! wowowowo! (Sorry the picture didn't turn out quite that nice) This is probably one of my highest quality specimen so far, although it did break near the end when extracting it from the matrix.
  15. Wowowow I was very surprised to find all this amazing stuff today at my favourite river bank fossils spot of the Etobicoke creek. I managed to snag a whole lot of stuff today, some Orthoconic Nautiloids, Brachipods and what I believe to be the nicest tentaculite I've ever seen!!! The fossils are from the Georgian Bay Formation and they were found in the broken up "rock fields" next to the creek. This is going to be one of my longer posts, so I will have to split them up into section. The full haul, with the typical estwing 22 ounce rock pick (33 cm from bottom of the handle to the top of the hammer end for anyone who doesn't own one). First lets start with the usual: Them cone boys, aka Orthoconic Nautiloids. I believe all of the following to be Treptoceras crebriseptum.
  16. Hello there! I took advantage of the nice weather we've been having to visit Mimico Creek in Toronto, Ontario (Georgian Bay Formation, Upper Ordovician) yesterday afternoon. Here are some photos of specimens that I'd like help identifying - perhaps @Tidgy's Dad would like to have a look? Firstly - the whole rock which contains the bryozoans and the unknown black objects: Specimen #1: a nice branching bryozoan - perhaps Homotrypa? Specimen #2: a nice encrusting bryozoan (there are actually two of them) - perhaps Mesotrypa? More to come...
  17. Hello, I recently cracked open a rock to find one the most pristine and unusually shaped fossils I've seen in a looong time. I predict it might be the edge of a bivalve shell poking out, but I wanted to know what others might have to say about this. It was found in the rock deposits of the rivers in Toronto, Canada, and is part of the Georgian bay formation. Also, only the bottom half seems to be completely crystallized and is translucent, whereas the top is relatively opaque: I am somewhat worried about totally ruining the fossil if I try to further crack into the matrix, as it is Ordovician era rock which is very hard and often results in the destruction of the specimen when trying to clean up the fossils. Sorry for not providing much to go off of . Thanks in advanced for the help! -Em
  18. JUAN EMMANUEL

    Favistina calicina

    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.
  19. JUAN EMMANUEL

    Treptoceras crebiseptum

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

    The smallest complete Treptoceras crebiseptum specimen in my collection. It even has the body chamber. Length is 10 cm long. Found in the shales of the Georgian Bay formation, Lower Member at Mimico Creek in Etobicoke, Ontario, Canada. Late Ordovician.
  20. JUAN EMMANUEL

    Ichnofossil Association

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

    Ichnofossil association collected somewhere along the Humber River. Georgian Bay formation, Lower Member. Late Ordovician. Etobicoke, Ontario, Canada.
  21. Monica

    scolecodont or conodont?

    Hi again! Over the weekend, I posted pictures of small fossils in a rock I found at Mimico Creek in Toronto, Ontario (Georgian Bay Formation, Upper Ordovician). I've created this new post just for the shiny black specimens that I found in the rock because a consensus wasn't reached regarding their identity. Each of the two specimens pictured below are 5mm long. My question is: are these items scolecodonts or conodonts? I was leaning towards scolecodonts but I wanted to see what others have to say... Thanks once again! Monica
  22. JUAN EMMANUEL

    Complete Treptoceras crebiseptum

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

    Complete specimen of a late Ordovician cephalopod Treptoceras crebiseptum, even with the living chamber intact. The length is appr. 37 cm. From the Mimico creek, Georgian Bay formation, Ontario. Specimen found in shale and my first complete one!! I usually find small fragments of the phragmocone at Mimico creek. Also keep in mind specimens found in shale are preserved squashed, compared to the ones preserved in limestone they are preserved in their original shape.

    © (©)

  23. 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
  24. I found this in ordovician strata that is approximately 450 million years old. It looks like a shell fragment from a bivalve or brachiopod, but it has rounded edges. Any help would be appreciated.
  25. Hello everyone! Now that I've started to split some rocks from my local creeks (Mimico Creek and Etobicoke Creek, Georgian Bay Formation, Upper Ordovician), I'd like some help to identify what I've found. @JUAN EMMANUEL, can you help? Rock #1: This type of bivalve is very common, but I can't decide if it's Ambonychia sp. or Byssonychia sp. The book I have says that they both occur in the Georgian Bay Formation, and they look very similar except Byssonychia sp. "has strong radiating ribs rather than (fine radiating) striae," which is what Ambonychia sp. has. (Hessin, p. 148) What do you think? Rock #2: I've started to find this type of bivalve quite frequently. It looks like the pictures of Cymatonota sp. in the book that I have (Hessin, p. 145), but I'm not sure if this genus exists in the Georgian Bay Formation since Hessin states that "it is moderately common in the Verulam and Coburg formations" (p. 145) but he makes no mention of it occurring in the Georgian Bay Formation. Hessin does state that another similar-looking bivalve can be found in the Georgian Bay Formation: Colpomya sp. (p. 146), so perhaps it could be that? Hessin also discusses a bivalve community that is commonly found in the Georgian Bay Formation that consists of Ambonychia/Byssonychia and Modiolopsis (p. 52), so could this be Modiolopsis sp. instead? As you'll see in Rock #3, the bivalves in Rock #1 and Rock #2 are often found together. Rock #3: "front" - bivalve community, but which genera? Rock #3: "back" - bivalve community (which genera?) along with a couple of brachiopods (I think). It may be a bit too difficult to identify the brachiopods, but I'm hoping that someone out there might be able to - perhaps Onniella sp. or Strophomena sp. for the one on top (positive and negative)? Rock #4: positive and negative of a brachiopod - again, it may be too faint to identify but I'll keep my fingers crossed that someone can help me. Maybe Dalmanella sp. or Paucicrura sp. or Resserella sp.? Thanks everyone! Monica
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