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  1. All collected in gravel and beach rocks from SW Wisconsin. Thanks so much for the help! I love this community:)
  2. Steph

    Paleozoic Bivalve or sponge?

    Despite weathering, I was hoping there may be enough features for an ID. My initial impression was that it could potentially be a bivalve. However, after seeing a photo of fossil sponges from the area (see last pic), I think that is a reasonable consideration as well. Thanks for looking!
  3. Mark fossil maniac

    Help!!! I can't identify this Lake Huron Fossil

    Hello, just wondering if anyone could help identify this Fossil. It's really nice
  4. Brandy Cole

    Cretaceous life?

    Most of what I find in southeast Texas is mio-pleistocene, and fresh water based. But at times older cretaceous stuff washes down. Since it's rare here, I'm completely clueless as to differences between oysters, corals, rudists and things but would like to learn more. I found this a while back and it seems to have very distinct patterns on the outside and inside. From searches, I thought maybe a broken piece of rudist, but I wouldn't know one if it bit me. It just doesn't look like normal rock to me. Any guidance would be appreciated. @JohnJ
  5. TinySpiderMonkeyNinja

    This is another from my backyard treasure chest!

    I love my backyard, I don' love being clueless as to where the previous owners purchased the rocks from. I am fairly positive that they are a mixture of at least two different styles, one of which I know is a river or lake mixture. (I was able to get one person on another forum to tell me they look like possibly Michigan Lakes stones) What I did not know, is that coral and sponge could be found in fresh water sources, any body an expert in this sector? Or if you have any opinions on the Lake Michigan suggestion, please let me know what you think. When I am more familiar with the different for
  6. Atlantic City

    Is this some sort of fossil?

    Hello, I wish I could tell you exactly where this piece came from but "east of the Mississippi, perhaps Massachusetts/upstate New York" is the best I can do. It's actually been worked by humans hands I believe, meaning it is an artifact of some kind... but what is it made of? I've never seen anything quite like it and I'm wondering ion its. a fossil of some kind. It's about 1 in (2.5 centimeters) but it's clearly been broken so it was part of a larger object/spall. I'm sorry the picture of the bottom where the break is isn't that sharp. Thank you for taking
  7. val horn

    object in tunnel in flint

    Went to Ruxton England looking for my own mammoth. Brought home some large rocks instead. Not sure what to make of the orange inclusion in this piece of flint. The whole flint is about 3 by 5 inches with multiple rough spotty enclusions There is significant discussion as to what these flints represent, one concept involves the death and collapse of glass sponges as in: https://www.flint-paramoudra.com/flint-nodules.html Is it a dying glass sponge, a worm and worm burrow, or something else entirely. Help will be appreciated, thanks
  8. reinecke_tracy

    Crystallized sponge?

    Found this on a walk. Very porous with channels filled with tiny crystal
  9. Caverat

    Circular Branching fossil

    Could this be a sponge? Note the radial structure and the occasional branching rods. Collected in Missouri, but location and age are unknown. Also, the specimen is sawn to 3/4" thick and the fossil doesn't extend into the sawn area! There is a lot of tiny crinoidal hash in the matrix rock. The light blue grid is one inch.
  10. Jerry W.

    Something aquatic

    I would welcome any help identifying a fossil that I suspect to be some sort of bacteria/coral/sponge/aquatic item. Sorry to sound so ignorant about it, but I really don't know aquatic life by sight. The fossil is 6 cm long X 4 cm tall X 2 cm thick. Found in an Upper Cretaceous area, Kirtland Formation of northwestern New Mexico. The fossil has the small pits located around the edges and on the opposite side too. Thanks!
  11. 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
  12. Roberto B

    Sponge? Coral?

    Hi everyone, I found this in marine pliocene-pleistocene sediments. The rock is a sandstone with large cemented elements (pebbles and fragments of shells). What is that round object? It has an ornamentation made of small holes, fairly regular, under the surface the holes seem to widen into small chambers (as you can see in the broken point). Could it be a coral or a fossil sponge? Dimension of the round object: 40x25mm Thanks
  13. I found this twiggy fossil at the Lost Creek Dam site in Jacksboro Texas. It's the Finis Shale Member of the Graham Formation, Upper Pennsylvanian. I thought it might be a Fissispongia jacksboroensis but now I'm wondering if that is right. The two branch-like protuberances have some wavy striations on them I haven't seen before. Any ideas?
  14. peystone

    Thrift store finds

    While travelling in British columbia I picked up a couple of fossils, one has something like a fish or strange leaf on it with tiny little oval shapes and shells. Whatever was the focal point of thus fossil appears to have been damaged. I am very interested in what the small oval shapes are as there are many of them and they are on both sides and visible in the cross-section of the stone. If I wet the ovals I may be able to get a better contrast picture. The other is possibly a fossilized sea sponge. Although there is no surrounding stone, The Pink piece seems way too heavy for it
  15. hndmarshall

    3 Items wood? sponge and wth?

    three items will post pics of all three separate in this thread..... three items.....Item #1 is this petrified wood? if so its a different variety than i usually find.
  16. Item one 3 pics...some sort of fan corral or sponge or the wing imprint of some big bug? Item two 2 pics.... hold fast or sponge? Item three 2 pics...hold fast or? I know, I know the pics are not too good I do have a new camera on order be here in a few days.
  17. hndmarshall

    bone fragments or sponge?

    a these bone fragments? these bone fragments? found in Brookshire texas in a gravel load by the way the gravel is from the Brazos River item #1 - 5 pics item #2 -
  18. hndmarshall

    fossilized plant material?

    this was in a load of river rock here in Brookshire Texas west of houston....it looks like either some type of sea life or a fern of some kind you can see the feathery plant? drapped over the stone?...especially in the last pic....at least I hope you can got new camera but they forgot to send data cable.
  19. hndmarshall

    I found a what?....Potato?

    ok here is a weird potato looking thing...any ideas? the item was wet in the photos and is actually lighter than pictured.
  20. Jim K

    Florida beach find

    This is a Florida beach find from about 25 years ago. We don't remember the exact location, but somewhere between Ft Meyers and Tampa. It reminds me of sponge but that's just a guess. It could be just an interesting rock, but has those large holes and very small pores. Any help is much appreciated. Thank you.
  21. jeff510

    Newbie needs help

    I found this on the surface in Westfield, ny about a mile away from lake Erie. This area is all glacial till. Most of the sedimentary rocks strewn about here have fossils, trails, and or ripples. Anybody recognize this?
  22. boswachter

    north basin Lake Winnipeg

    So I came across this "weird stone. possibly a fossil. The pattern goes all the way through the stone. Found near the north basin of Lake Winnipeg, Manitoba. Does anyone have an idea what this could be / could have been? While I have found numerous snail type fossils, this one was a first... I'm not even sure if this is a fossil at all. more views of the same
  23. FranzBernhard

    Cretaceous sponges?

    Hello, again I would like to ask for your kind help. I have two sectioned fossils from the Campanian Gosau basin of Kainach, Styria, Austria (St. Bartholomä-Formation). They are accompanied by radiolitid rudists (R), but I don´t think that they are rudists by itself. Could these be some kind of sponges? But I can not see any spicules. Frist specimen is 13.5 cm high, sections are ca. 3 mm apart. Second specimen is 11.5 cm wide, sections are ca. 16 mm apart. There is nothing visible on the wheatered surface, except some Radiolitid fragments. I know this website: http
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