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Found 7 results

  1. Back in 2020 I went with a university paleontology class to a quarry in Alabama where the Mississippian Bangor Formation is exposed. Much of the formation is massive pure limestone, which is used for cement production. However at the top of the quarry there are thin limestone layers separated by shale. As this is unsuitable for cement, it is stripped off and discarded adjacent to the quarry, and we are allowed to search this. Crinoids and blastoids are common finds, and other fossils including chondrichthyans ("shark" teeth and spines) are found occasionally. On the 2020 trip I found a partial large edrioasteroid, the first the professor had seen and they had been leading trips to the quarry for many years. (BTW edrioasteroids are known from other Bangor exposures, just not this quarry). Last weekend I was trimming up some fossils with a tile saw to make space in the cabinet. The edrioasteroid was still on a fairly big slab partly wrapped in aluminum foil. The back had a centimeter or so layer of dried mud and broken down shale covering it. Before I started to cut up the slab I decided to clean off the back, in part to make cutting less messy, and also just to make sure there wasn't anything interesting on that side. In the past I have cut right through good fossils because I didn't know that they were there. As I took a toothbrush to the mud and broken down shale, a bit of black appeared. This was interesting, as about the only thing in these rocks that is black are the fish teeth. A bit more scrubbing, and a beautiful Chomatodus tooth appeared, the best I have seen personally. There is a small bit (maybe ~2 mm) missing on one end, but otherwise it's all there and perfectly exposed. The taxonomy of these fish is quite confused, and even experts are declining to put species names on specimens until the genus is properly revised, so I am labeling this specimen as Chomatodus sp. Just for fun, I will be entering this one for Fossil of the Month. The edrioasteroid (Hypsiclavus huntsvillensis): The tooth (Chomatodus sp):
  2. Hi all! Since Covid I have been able to get out in the UV Covid killing rays and do some fossil hunting...a lot of fossil hunting! I've collected a lot and shutter to think I have to clear out what I have to make room for more. I'm not a morning person by no means but had to get up at the crack of dawn to go on this 2.5 hour trip north of where I live and it was an extremely foggy, chilly morning. The day didn't disappoint. Here the finds of the day from a road cut out in the middle of nowhere. Foggy early morning hours The road cut... Horned Coral Brachiopods Crinoid Stems Archimedes Punctospirifers? Blastoids, my favorite Mississippian fossils. 3D versions as well as in matrix. Just love the matrix. The compositional value natures lays down millions of years ago is just astonishing!
  3. FossilDAWG

    A Nice Surprise!

    Usually I go with a paleontology class to a quarry in Alabama, where the Mississippian (Lower Carboniferous) Bangor Formation limestone is quarried for cement. The upper layers are too shale and silica rich for cement, so they are stripped and piled to the side. This material is what we are allowed to search. The last time we went (March 2019, no 2020 trip due to Covid-19) I brought back a small crinoid calyx that was showing on the side of a piece of rock. The rock seemed pretty solid and my experience has been that if there is more to the crinoid, forcing a split tends to break through the fossil. So, I put the rock on my back deck and forgot about it. A couple of days ago I was cleaning up and noticed the rock, and also noticed that a year and a bit of exposure to the Georgia weather had caused the rock to split. I lifted the top off and found this very nice surprise! The only prep it has received is cleaning with a tooth brush. Nice to find something, as I have not been out collecting since November. Before: After: Phanocrinus bellulus crown 4.6 cm. Don
  4. From the album: MY FOSSIL Collection - Dpaul7

    Graveyard Fossil - Crinoid, Bryzoan, Mollusk Fragments SITE LOCATION: Bangor Formation, Northern Alabama TIME PERIOD: Mississippian Period (325,000,000 years ago) Data: Various types of fossil fragments, crinoid stems, bryzoan sections, a shell fragment or two from mollusks.
  5. From the album: MY FOSSIL Collection - Dpaul7

    Graveyard Fossil - Crinoid, Bryzoan, Mollusk Fragments SITE LOCATION: Bangor Formation, Northern Alabama TIME PERIOD: Mississippian Period (325,000,000 years ago) Data: Various types of fossil fragments, crinoid stems, bryzoan sections, a shell fragment or two from mollusks.
  6. From the album: MY FOSSIL Collection - Dpaul7

    Mollusks - Phestia wortheni bivalve with Glabrocinculum grayvillense gastropod SITE LOCATION: Bangor Formation, Northern Alabama TIME PERIOD: Mississippian Period (325,000,000 years ago) Nuculanoida is an order of very small saltwater clams, marine bivalve molluscs in the subclass Protobranchia. The small gastropod is Glabrocinculum grayvillense - The taxonomy below will show Phestia on the left; Glabrocinculum grayvillense on the right. Kingdom: Animalia/Animalia Phylum: Mollusca/Mollusca Class: Bivalvia/Gastropoda Order: Nuculandia/†Pleurotomariida Family: Nuculanidae/†Gosseletinidae Genus: †Phestia/†Glabrocinculum Species: †wortheni/†grayvillense
  7. Dpaul7

    Phestia Wortheni.JPG

    From the album: MY FOSSIL Collection - Dpaul7

    Clam Fossil, Phestia Wortheni Bangor Formation, Northern Alabama Mississippian Period (325,000,000 years ago) Nuculanoida is an order of very small saltwater clams, marine bivalve molluscs in the subclass Protobranchia. Kingdom: Animalia Phylum: Mollusca Class: Bivalvia Order: Nuculandia Family: Nuculanidae Genus: †Phestia Species: †wortheni
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