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  1. ThePhysicist

    cf. Phoebodus sp.

    From the album: Devonian

    One of the most complete teeth of this kind I've found so far (intact root, just missing two of the cusps). It's remarkably similar to Orhacanth shark teeth from the Permian, being tri-cuspid with the little "button."
  2. ThePhysicist

    Shark spine

    From the album: Devonian

    Yes, sharks used to have spines! Xenacanth sharks in the Permian and Hybodont sharks did as well. This is the only shark spine I've seen from the Devonian - if you've got one, would love to see it.
  3. minnbuckeye

    Devonian Fish Bone to ID????

    I had previously posted this in a Post on a fossil hunting excursion to a Devonian site in Iowa. Since then, the bone has been cleaned up and substantially more bone exposed. I am hoping someone might ID the bone. But probably just a bone chunk! You don't know if you don't ask!!! Mike
  4. minnbuckeye

    Pella Formation ID Info

    Does anyone know of a good (or even not so good) reference for Pella Formation fossil identification? My searches have proven mostly unsuccessful! Mike
  5. I visited the Russell Wildlife Area in Oskaloosa, Iowa yesterday. It is a series of old mine pits of Pennsylvanian, Pella rock. Reportedly, blastoids are found here. After spending 4 hours looking, I came up empty, at least in regards to the blastoids. Plenty of other marine finds. I am wondering if anyone has possibly visited the area and stumbled onto any blastoids? Is it a needle in the haystack, or was I looking in the wrong rock structure? Just curious in case a return trip ever occurs. @squalicorax, I noticed you hunted the area. Mike
  6. I_gotta_rock

    Our Great I-80 Road Trip

    Greetings, all! After exploring outcrops and spoils piles from Quebec down to Florida, we are heading west from Delaware to Crawford, Nebraska and back this fall. Planning to stop by Sylvania, OH and Clear Lake, IA. Probably Richmond, IN. Any other suggestions? Thoughts on these three?
  7. CandiM

    Looks like scales?

  8. minnbuckeye

    Beat Up Crinoid Crown???

    I picked up this crinoid filled matrix to put in the children's fossil pit. But as I examined it, I am "imagining" a crinoid crown, albeit, disarticulated. Any thoughts? Am I seeing things? Wishful thinking? Thanks Mike
  9. KadyJane

    plant fossil?

    Found in Black Hawk County in northeast Iowa. About 5 x 4 x 2cm
  10. connorp

    Devonian fish bone fragment

    I found this small (~0.5cm in width) bone fragment in Middle/Upper Devonian of Iowa. It has a couple of interesting features that separate it from the usual nondescript bone chunks I find, including many small pores and a pronounced ridge. Hopefully the pictures capture these well. Any thoughts as to what it might be? Maybe a scale of some sort? Thanks.
  11. Jacobie

    I don't know

    Not sure what this is it was found in Iowa
  12. Tetradium

    Ichnofossils

    From the album: Lime Creek Devonian Rockford Iowa

    trace fossils. I hadn't really found that much variety in trace fossils from the area. The largest is easily 2 inches in diameter
  13. From the album: Lime Creek Devonian Rockford Iowa

    Left is my entire collection of Nervostrophia rockfordensis. Uncommon, much larger and flatter than the right which is Nervostrophia camerata of which is very abundant and only some are shown here. Nervostrophia camerata is variable in shapes, either having a wing projective that is very distinct from other brachiopods or lacking it entirely.
  14. Tetradium

    Devonoproductus walcotti

    From the album: Lime Creek Devonian Rockford Iowa

    Devonoproductus walcotti This is is my first of the Productid branch of the brachiopod family tree as none exists in Ordovician. Typically both halves separated. This one is unusual for a brachiopod to me in having two very different textures on separated shell halves. The bottom half is very inflated and easily confused with Nervostrophia. Uncommon. Scattered prickly projective appear on the bottom half while the top part is concave and have many longitude ridges, making me thought it was a clam species.
  15. Tetradium

    Cryptonella sp

    From the album: Lime Creek Devonian Rockford Iowa

    Cryptonella sp. Classic lamp brachiopod. Uncommon and easily overlooked due to its tiny size.
  16. Tetradium

    Strophonelloides sp

    From the album: Lime Creek Devonian Rockford Iowa

    Strophonelloides sp. Rare - very distinct, resembles Rafinesquina from Ordovician. Fragile as heck too. Even this one in hard shale had cracks and is deformed.
  17. Tetradium

    Cyrtina iowaensis

    From the album: Lime Creek Devonian Rockford Iowa

    Cyrtina iowaensis uncommon. Easily overlooked due to its tiny size. Only way to tell apart from Tenticospirfier is its coarser ribs.
  18. Tetradium

    Tenticospirifer cyrtiniformis

    From the album: Lime Creek Devonian Rockford Iowa

    Tenticospirifer cyrtiniformis - a bit more common than Cyrtina iowaensis.
  19. Tetradium

    Nortonechinus primus

    From the album: Lime Creek Devonian Rockford Iowa

    Nortonechinus primus a sea urchin - I suspects the spines is a bit more common than people thought but still rare. More overlooked due to its small size and resembles broken golf tees.
  20. Tetradium

    Paracycias sabini

    From the album: Lime Creek Devonian Rockford Iowa

    Paracycias sabini Abundant in some areas - I suspects most folks overlooked them as looking like pebbles. Sources put the two distinct forms - one oval, the other flatter circular into one acceptable species. Shell is rarely preserved with the far most bottom one in the picture a good example
  21. Tetradium

    Pterinea husseyi

    From the album: Lime Creek Devonian Rockford Iowa

    Pterinea husseyi - internal mold. Rare. This bivalve which is the only one I had found so far is related to winged oysters thus its weird shape. The winged part is the NW corner of the shell with its hinges NE part to give a general picture.
  22. Tetradium

    Pterinea husseyi side view

    From the album: Lime Creek Devonian Rockford Iowa

    Side view of Pterinea husseyi showing hinge lines.
  23. Tetradium

    Stromatoporoid

    From the album: Lime Creek Devonian Rockford Iowa

    Stromatoporoid
  24. Tetradium

    Fenestella

    From the album: Lime Creek Devonian Rockford Iowa

    Fenestella sp. A lace bryozoan - usually found in small pieces in the harder shale.
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