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I already had 2 little piles of worm tubes then I found this larger single one today and appears the tube broke and exposed the worm. Examined the smaller ones more closely and noticed they have pyritized insides and cracks like on shell, started to wonder if they were gastropods, I see shiny spots and know the worm isn't preserved and tubes aren't shiny so doubting if they are Serpulid tubes. Also see what appears to be apeture on larger worm, so what are they? Last picture is backside of large one.

Howdy. I found this gastropod in Comal County, Upper Glen Rose formation, and I'm drawing a blank. I'm unable to find any sources that show or describe a species with this ribbed morphology. Any help is greatly appreciated!

I found this piece outside Kansas City, Kansas. It was found with some other fossils from the Carboniferous (many shells). It looks like a cast or a mold? Maybe a really large Gastropod? Pictures attached.

So, I have been preparing this nice little gastropod. I have seen five other specimens that shared the same characteristics, but, unfortunately, some of them did not make it. Before I continued to prep this one, I was wondering if it is possible to roughly ID this gastropod. It would greatly facilitate prep work to have a good idea of its shape. All the specimens I have seen have had three whorls. The upper two whorl's ridges are almost absent, this has been consistent through all my specimens. The shape of the shell is coeloconoid. It was found in the Leighton Formation, Maine; which is Pridoli, Silurian. The pictures below are of the specimen under direct, then raking light. The third picture is the external mold under direct light. Thanks in advance for your help! @MikeR @Rockwood

This weekend I had the opportunity to spend a couple hours hunting in the Galena Group (Upper Ordovician) in northern Illinois. The Galena around here is mostly massive dolomite, so most fossils are preserved as molds. Mollusks dominate the fauna, especially gastropods, although other interesting specimens crop up from time to time. Burrows A large orthoconic nautiloid Fisherites are fairly common in some beds, although extracting complete specimens is challenging. Thaleops sp. Some better gastropod examples Interesting minerals can be found, such as these pyrite crystals. Fisherites On occasion, fossils with remnants of their original shells do show up. The most common seems to be Pseudolingula. The best find of the day was this conulariid. I have never found a conulariid in the Galena before, so it was quite a surprise. And that's all. Hope you enjoyed!

Hi all! This is another report from Oxfordian quarries in the vicinity of Moscow. Previous 1 (Peski) Previous 2 (Timonino) Peski again. If you read my fossil sites overview, you know that Peski quarry is a unique site where you could find lots of Carboniferous fossils, Middle Jurassic dinosaurs, calcitic Callovian ammonites and very good Oxfordian gastropods. The latter are the most numerous and easier to search for. My trip took place in April and was mostly a success with a good variety of finds

I accidently collected this one on a rock containing a bryozoan. The shell is 5 mm. tall x 3 mm. wide. it was collected from the Kanwaka Shale in Greenwod County Kansas. Does anyone have any idea what genus this one belongs in? Thanks.

Anyone help identify this? Its covered in gastropods or so I've been told. Is it considered a mortality plate?

Inspired by trip reports by other members on the fossil shells of the Middle Miocene Choptank Formation, especially @I_gotta_rock's report from 2018, over the past several months I have made a couple trips to Matoaka Beach Cabins in Maryland to collect some of the incredible invertebrate material exposed along the cliffs and in that way draw the quizzical looks of other collectors there combing for shark teeth. It is a lot of fun to just park myself along the beach and break down pieces of talus with a screwdriver to uncover hundreds, if not thousands, of shells. Unfortunately the shells are incredibly fragile so a lot of effort was taken to wrap the fossils in aluminum foil on the beach and to meticulously expose them with dental tools and toothbrushes and consolidate them with glue at home. Despite my precautions, many shells were lost, both on the beach and at home. I found everything along the beach and in talus falls, except for the large piece of the sand dollar Abertella aberti. On my latest trip to the Chesapeake Bay a man collecting shells along the beach asked me to identify a few things that he had found washed in by the tide. He asked if this fossil was a piece of turtle shell and when I told him that it was instead a piece of sand dollar and that it is rare to find a piece that large, he asked me if I wanted to have it. I of course graciously accepted his offer. I offered a couple of other fossils later on, but he seemed satisfied with what he had already found. There are so many fossil shells to be found along the cliffs of the Chesapeake Bay so I will try not to bore you with all of my finds. I think the gastropods are really cool so I have included all of my gastropod finds. Without further ado, here are my favorite finds: The only vertebrate fossil I found was this Aetobatus sp. ray tooth that was found lodged inside the opening of an Ecphora shell What is a post about Miocene shell collecting without a big Balanus concavus barnacle. This one was found in about six inches of water at low tide on my first trip. About the same time I found the barnacle I found this awesome chunk of Astrhelia palmata coral, which even has some bryozoan on it A couple crab claws found while searching the excess matrix compacted in the shells The aforementioned piece of the sand dollar Abertella aberti Now for the shells. First off are a couple Chesapecten nefrens. I love to find ones that have barnacles still on them. This was my largest one, measuring about 6 inches across. I found one that had both valves, but sadly one of the ears is missing Chesacardium laqueatum blackwelderi Atrina harrisii Stewartia anodonta Dosinia acetabulum blackwelderi Timothynus subvexa Ostrea carolinensis The largest shell found along the beach is the geoduck clam Panopea americana You can also find another species - Panopea goldfussi. I love how this one preserved in life position. All I had to do was dig some of the matrix out and glue the rest in. Glossus marylandica Mercenaria cuneata While finding the big gastropods was the real draw, I also really liked finding the tiny gastropods, which I only found at home after screening extra matrix or breaking extra matrix down by hand. The first of the tiny snails to show off are these three species of Calliostoma. From left to right is Calliostoma aphelium, Calliostoma philanthropus, and an unknown species of Calliostoma. Perhaps my favorite tiny gastropod - the predatory murex snail Typhis acuticosta I believe this one is Surcula sp. Perhaps the smallest fossil I have ever found- Teinostoma calvertense. Can you see it in the photo on the right? Terebra sp. Cymatosyrinx limatula Mariadrillia parvoidea Nassarius peralta Nassarius peraltoides Neverita duplicata The moon snail Euspira heros is by far the most common gastropod. I found a dozen of different sizes. Here are only a few. Mariacolpus octonaria Turritella subvariabilis Crucibulum costatum Crucibulum multilineatum Scaphella virginiana I love this juvenile Busycotypus rugosum whelk shell Spinifulgur spiniger oslowensis