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Are these two samples corals? The first is 0.5 cm; the second is part of a 2 cm "stalk."

I have a lot of coral but none like this one. I don't know whether it's size is the result of the fossil process or coral type. It's 3.5 cm tall; circumference is 12.5 cm.

The Delaware Valley Paleontological Society got a permit to explore the restricted area at Beltaville Dam in Lehighton, PA today. The spillway for the dam is immense! The 20-50ish foot walls of the spillway are covered with rubble in swaths of hard blue-black and red stone, soft colorful clay stone, and the occasional bit of tan sandstone. All are from the Upper Devonian Mahantango Formation. The sun was shining, the air was warm and the wind was still. Perfect day for prospecting! Everybody spread out along the walls. There was more than ample room for everybody to claim a big spot to explore. I walked along the north wall until the smooth, flat stones started showing texture. I had expected to find very little in the harder material and lots of things in the colorful clay. That’s been my experience on the beach in the adjacent state park*, anyway. Quite the opposite! As soon as I found a promising spot in the hard matrix, I sat down and examined every rock. The trilobites were lurking watching me from all directions. I found eyes from at least 8 animals. Most I kept, just for the sake of counting. A couple I tossed because this was getting silly. One I gave to someone nearby, “So he can keep an eye out for you.” The best was this 2-inch Phacops sp. cephalon. I now officially claim to have the PA State Fossil. I don’t know if I’ll ever be able to figure out if it’s P. rana, but the right genus is close enough for me. Such a cute little froggie face! I found one tiny brachiopod or bivalve among the buggies that still had the whole shell intact, albeit a might smoothed during its time under water. It's not silicified. It's not pyritized. It's still CaCO3 after all these ages. I tested it. I showed it to our trip leader who said that there was coral preserved like this shell further down the wall. Nifty. There were also some very nice, red-stained bryozoa and hash plates. Unfortunately, the hash plates were mostly at the narrow ends of long rocks, arranged 90 degrees from the plane of the layers in the splitting stone. Most I admired and left behind. There are only so many big, mostly-featureless rocks I can store in the house. After a couple hours, I appeared to exhaust my trilobite supply. People had walked past me with some pretty horn corals molds, so I headed towards the clay to see if I could find any. No luck. There was plenty of colorful stone, buy almost nothing as far as fossils, so I kept picking my way across the wall where I could get footing. I kept getting higher and higher until eventually I needed all 4s to navigate in any direction and abandoned my collection bucket. Another quarter mile or so down the wall, I found a good spot to slid tom the spillway floor. And there they were. In a space covering maybe 5 horizontal feet of the wall were rocks littered with preserved coral bodies. Jackpot! I spent at least an hour at the top. I tried to slide down a little and slid all the way to the bottom, unable to climb back up the steep pile of flat pebbles. There was definitely more at the bottom, but the middle eluded me. While poking around for corals, I found a couple of ½” brachiopods with both sides intact and a preserved crinoid stem. I walked across the spillway and back up the other side but found nothing. I somehow totally missed that the rest of the group had left, with just Rick and Steve watching me from a distance. Typical for me to be the last one out. I'll post a link in the comments to my Beltzville album when I finish sorting through my finds and photographing them. *Yes, I know it is illegal to collect fossils in most states' parks. Pennsylvania is an exception.

Hi everyone this is matt again today in the creek I found this cool coral in the creek on 28 mile creek near 28th creek Rd. between Kennedy and ellington here are 3 photos

Found this stone in the beach in Sligo, Ireland. Is this some kind of a coral?

This is from northern Maine. Devonian marine rocks in the Seboomook group of formations I believe. When I collected it my best guess was that it was a bryozoan, but somehow it didn't seem to fit right. I cleaned some of the dust off it recently for another look. The tube shapes and configuration of the molds have me thinking maybe syringopora ? It's all the same colony, just broken up.

hi everyone this is matt again there was one more thing I wanted to show everyone from the hamburg fossil and gem show I got me 4 old antique spanish coins with a square in the middle here is a photo

Hi everyone this is matthew again on saturday 23 2019 I went to the hamburg fossil and gem show. when I went down there I got a very nice ammonite and a nice brittle star fossil the ammonite cost me $30.00 and the brittle star was $125.00 here are some photos of them

Hey guys this coral keeps drawing my attention. We have hundreds of horn corals and pretty sure this is one, but it looks different than the others? Do you think it just preserved differently or could it be a less common type of solitary rugose coral? Any thoughts appreciated and thanks for looking!

Hello, here is the next coral colony from the Campanian St. Bartholomä-formation in Styria, Austria (Gosau-group), collected 02/10/2019, west of Kalchberg, point 36. This coral colony is intergrown with limestone. There is a naturally weathered cross section and naturally weathered vertical section (but not much to see there). I have cut and polished one end and preservation seems to be not too bad. However, as usual, am rather clueless. I think, it has external pali, so it could belong to Hydnophoropsis? Many thanks for your help! Franz Bernhard

This is said to be a piece of coral from Guizhou of China. What do you think?

Came across this fossil today while out enjoying the sun. I've found coral before but the little cavities are usually infilled, this is like swiss cheese, wondering what it is. It feels like a pumice stone in weight and texture. Thanks in advance!

Fossils on Wheels received another generous donation to our education programs this week. TFF member @Herb sent us a box of super cool invertebrates. He sent us a diversity of fossils from the Southern US that cover a wide range of eras. These fossils will be given to students in fossil starter kits and used in hands-on activities. Herb's donation is also awesome because this pushes me to learning a lot more about invertebrate fossils. One of the best parts of teaching kids about natural history through fossil exploration is that I get to learn a lot. Good teachers learn and challenge themselves so they can challenge their students. I do not have a lot of knowledge about these types of animals but I am so excited to start learning. Among the fossils we received were- Mississippian Corals and Brachiopods from Kentucky, Crinoid stems and Silurian sponges from Tennessee, Cretaceous Gastropods from Texas, and Eocene Bivalves from Alabama. Thank you Herb for a generous donation that will get put to good use

Possible Coral by Gazelle California (Silurian - Devonian ) It looks like crystals and the way it has formed on the rock makes me think not a chance of even being biotic at all. Maybe someone knows what mineral this is? Maybe it is a fossil of some kind, but I doubt it.

Off the road cut in Gazelle Callahan Road Northern California. The location is supposed to be Silurian sediment. I suspect this is solely a mineral but I thought it was strange. Let me know what you think. I'm not looking for specific species, kinda just yes coral or no coral.

My Dad was given a few slabs of this rock from a friend in Phoenix, AZ. We can’t figure out what it is. Similar to coral fossils but they aren’t circle in shape. When he cut and polished it, it was really hard. Any ideas?

Headed to the beach hoping the weatherman was right and could get to the edge of the shells piled at the shoreline just out of reach. The wind was predicted from the SW, but was calm then switched to the NE, and the tide stopped falling. The temperature stayed about 5 degrees lower than predicted as well. Couldn't get to the line of shells where I expected the bigger teeth should be, but with the wind causing a slow wash, teeth started appearing and I got a good variety, colorful and in good shape, though no big ones (and no cowshark, think I lost one in the wash). Will post the whale vertebra tomorrow after it dries. Weather is supposed to be warm tomorrow, may try another beach.

Hi all, I just got back from Arizona where I spent a couple of days at the Tucson Gem Show. On my quest for coprolite treasure at the Moroccan village, I came across this little mystery piece. I'm assuming it is some type of coral or brachiopod. The dealer only had a handful of these and this one had the least damage. Can anyone identify it? Any guesses on the age? When I first saw it, it reminded me of the septarians in this thread. Obviously, they are not the same.

Hello, In my third mystery find around the Kansas City and Blue Springs, MO areas I found these specimens. And I have yet been able to find any photos on the internet that can come close to their character. Can anyone identify what are these tiny egg-like beads? I hope my photos help. Thanks for your attention.

All, I went fossil hunting at a new site a little north of downtown Nashville and hit paydirt with these large pieces of rock; they are absolutely packed full of rugose coral

I've not been able to find a comparable coral to this guy. I'm pretty sure it's coral, anyway. Lol Any of you know what it is? Devonian, Sylvania, Ohio. Thanks!

Hello, I live near west Jackson County, Missouri. I found this fossil while I was walking my dog. It was part of the landscaping for the front of a building that has been there for 20 years or more. No one knows the origin of the material for the landscaping. Lots of reading, I found most of the chert in the landscaping has crinoids as a point of the time period, Devonian? Can't find any photos to compare it with on the internet, been trying for 2 months, a crash course on paleontology 101. I see Missouri in a different light from it all. Can this be identified? Thanks for the opportunity to share.

Hello, I can't seem to ID this fossil found in Silurian reef rock, Chicago area. I made some slices. Any help appreciated.

Is this a chain coral between the sutures of the ammonite Metoicoceras? About 4mm long (photo taken thru microscope). From the Cretaceous (Cenomanian) Tropic Shale in Utah.

I have another oddity here. Found on a Tampa Bay beach in Florida. It is about 3 inches long, brittle but light weight and hollow, with one end open and one end sealed. The side hole or spout attaches to the larger opening. I did some research and it resembles a calcareous sponge. Is it a sponge? Is it a fossil or modern? Thanks as always to a great group of people! Please see 5 pics below.