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  2. North Sulphur River Texas!

    Congrats on the great finds all around (including the frogs )! By the way - my daughter and your grandson think alike - if there are frogs around, Viola will stop looking for fossils and begin looking for frogs. She also likes to find worms - she says she likes how they wriggle in her hands. I like the T-shirt your grandson is wearing, too - my husband would approve
  3. Jalama Beach, Santa Barbara, First Fish

    Congrats on finding something fishy, Doren!
  4. Arrowhead and sharks teeth

    Thank you so much!
  5. I love orthoconic nautiloids, too - I think they're my favourite thing to find in the area! The ones you've found are likely Treptoceras crebriseptum - they are the most common ones to be found in the GTA (where exposed fossiliferous rocks are from the Georgian Bay Formation, Upper Ordovician). Welcome to the forum from your "neighbour" in Mississauga
  6. I love the geodized specimen in particular - it's gorgeous! Congratulations on all of the great finds!
  7. Fossil of alien tooling?

    Also known as a mold fossil of a crinoid stem. Ligaments often hold the columnals together long enough for them to be preserved this way.
  8. The Growing Collection of Ziggycardon

    Got one very amazing fossil in the mail today, quite a rare piece which I didn't think of ever owning. It's an Arthropleura armata body segment found in the Silesia Coal Basin in Poland (Upper Carboniferous, Middle Pennsylvanian / Westphalian A - Rudzkiebeds around 315 - 310 million years old). One of my favorite and most rare fossils to date, really happy I was able to purchase it
  9. Today
  10. Let's see your latest mailbox score!

    Got one very amazing fossil in the mail today, quite a rare piece which I didn't think of ever owning. It's an Arthropleura armata body segment found in the Silesia Coal Basin in Poland (Upper Carboniferous, Middle Pennsylvanian / Westphalian A - Rudzkiebeds around 315 - 310 million years old) Definiatly one of my favorite and rarest fossils to date.
  11. Hey everyone - It's Christian. For the past few months, I was inactive on TFF as I had a lot of schoolwork.. But now, I've got a lot more time on my hands - which means that I can get back to all things fossil related This of course includes making preparations for my 3rd Møns Klint Fossil Excavation (MKFE - the fieldwork aspect of my Møns Klint Fossil Research Program). I'll be going for 2 weeks, in mid-August - I'm really excited! As I said in a post from a few months ago, the collection policy of this MKFE is essentially the same as last time's (cephalopod, crustacean, echinoderm and vertebrate material). This time, though, there'll be a bigger focus on articulated and/or associated material - eroded sea urchin spines and belemnite fragments are getting too numerous... On the first days of the field trip, I'll have to do quite a bit of prospecting for new sites to work at, because there's a chance that the landslide spoil heap from last year has most likely been washed away by the waves. I'm already having some ideas of particular projects for this field trip, which include a comprehensive collection of washout microfossils - to determine relative abundances of various faunal groups. Another project is the in-depth analysis of fossil material from different layers of chalk - which I hope will yield some zone fossils. Of course, I'm still hoping to find a lil' mosasaur tooth I'll also use this field trip as an opportunity to donate to the GeoCenter Møns Klint some of the fossils I found during the 2nd MKFE. I'll keep you guys posted! Stay tuned I'm so excited to getting back there! -Christian
  12. Hi Dan, sure - please PM me the pictures and we will discuss further Regards, Kasia
  13. Fossil of alien tooling?

    I guess it's a crinoid... learn something new everyday.
  14. Fossil of alien tooling?

    A very nice dissolved out crinoid.
  15. great finds, the fauna is very simmilar of what we found a week ago in our area.
  16. nice orthocones
  17. Unusual Tiger Shark Tooth

    Daryl, I would say that it is a G. mayumbensis. Kent didn't list it in his Calvert Cliffs volume published last year but it appears your find is on a level of extreme rarity. Elasmo.com has a frequency scale for teeth with the rarest teeth listed as what might be found by several people in a year but I believe there is a level of rarity beyond that. It would be a tooth that one person might find one or two of in a lifetime and that's where I think you are with those two teeth. The Calvert Cliffs yield teeth of Middle Miocene age so they aren't too old for mayumbensis and the occurrence that far north for a tropical shark is not without precedent. There were likely unusually-warm summers in the Early-Middle Miocene just as there are today (and keep in mind that time was the second warmest in the Cenozoic Era - second only to the Early Eocene when there were crocodiles and palm trees on Ellesmere Island) so a tropical shark could have ranged farther north from time to time. On my coast hammerhead sharks are known off Baja California but during unusually-warm summers they have been reported off San Diego. It would not surprise me that in coming years they will be seen off Los Angeles and even Santa Barbara. Jess
  18. Unusual Tiger Shark Tooth

    Paleoc, I have been researching mayumbensis for the past couple of days though I am on the road and away from my references at home. I have not been able to confirm that it occurs in the late Miocene. It is known from the Peace River and the phosphate mines in Florida but only from the lower part of the Bone Valley Formation according to a longtime collector of the Bone Valley. He has also seen it from the Gainesville creeks (also noted by several members here with photos) which yield mostly Middle Miocene marine vertebrates and some younger land mammals. If you have a reference listing a late Miocene site or have collected one, I'd like to hear about it. Jess
  19. Hello! Unfortunately I do not have any Chama calcarata (punctata) or Chama lamellosa but I do have some Chama lamellifera from the Micoene of Victoria, Australia if you are interested?? Thanks, Dan
  20. Are these Galeocerdo Mayumbensis?

    My friend has a tooth that might be a symphyseal or at least the position next to it. I'll see if he'll let me get and post a photo. I edited my previous post to include a comment that the distal cutting edge of the cusp is shorter in G. mayumbensis than in cuvier. It leaves the cusp looking more broad-based with the effect of adding more surface area to the labial and lingual faces because of the higher cusp angle. I haven't seen what a lateral to posterior position would look like. My friend has a few specimens from the Peace River. A couple of them are mayumbensis but a couple of others (laterals) look like cuvier. Unfortunately, you can get both mayumbensis and cuvier there because the lower and upper Bone Valley layers are exposed by the river. I would think the cusp angle would decrease toward the commissure and the overall width would increase to the point that the tooth would look like a cuvier. Jess
  21. Fossil of alien tooling?

    +1 for the cast of a a crinoid stem.
  22. Fossil of alien tooling?

    My first thought is also crinoid, too big for blastoid I think (but I am not an expert)
  23. May 2019 - Finds of the Month Entries

    Wow... that’s outstanding!
  24. May 2019 - Finds of the Month Entries

    This is the before picture, still attached to the host rock. A small part could not be found so Markus flipped it and did a ventral prep on it. Lucky thing too, otherwise wouldn't have found the eggs!
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