Search the Community

Found this round rock amongst other fossil rocks, but it was so round that it stood out to me. I was hoping to cut it open and find it was a geode. At first I made one small cut and could see that the inside was chalk-like, so I tossed it to the side and wasnt going to bother with it anymore. But I noticed the very center was a different color. It looked pink, so I knocked out one quarter of the thick outer layer of that chalky stuff, and then some more, and this is what was inside. Does anybody else think this could be an egg with a baby dinosaur inside?

Hello everyone. Can anyone help me identify this rock. It was found on the Mississippi river. It is about the size of a silver dollar. There are two photos of one side and one of the other side.

Not sure what this can be any advice welcome found in south eastern kentucky, was not split in half after about 6 months looked at it and it had a large crack split it and found kind of hollow with tiny white crystals and what looks like dirt, that is the magnetic part the dark brown in the middle … chapstick is for size reference

Over the weekend, @Jackito and I finally met up to do some hunting together. He offered to show me around at the spot he recently discovered, a potential Eagle Ford outcrop where I hardly expected one to exist - right at home in Round Rock (just north of Austin in central texas). Previous (largely uneventful) excursions with the hope of finding Eagle Ford in Round Rock had taken me close by here, but without Carter I would have never, ever zeroed in - his intuition and research to get to this spot is impressive. His account of our hunt and his finds are here: In addition to his cool finds, I also found some really nifty teeth that show great promise for this area - four, all from different species, and in total we found (6? 7? something like that). A great day that exceeded expectations. Here's what I saw, in order: 1) A rear Squalicorax tooth, that came out of a shale slab that washed downstream. This little tooth find happened rather quickly, and set a good tone for the day 2.) I believe this is a Cretolamna tooth, since it doesn't seem to have a nutrient groove, and has evidence of cusps. Here is the insitu: 3.) Next came what I believe might be Cretoxyrhina mantelli. It doesn't seem to have a nutrient groove, and its a tough call but I don't think there's evidence of broken cusps. Texturing on the high side of the blade might be wrinkling instead. I'll be putting this on fossil ID for sure. Here's the insitu vs at home in better lighting 4.) My last cretaceous find was a Scapanorynchus, broken nearly in half, unfortunately, but nonetheless cool It was a great day with some cool finds - looking forward to heading out again and exploring some spots with @Jackito and his loyal assistant

Recently, I was introduced by some friends of mine to full fledged rock climbing, and I was hooked. One session on a big cliff near Austin was all it took. As many of you know, rock climbing shoes are excessively tight, and I decided that it would be best to try and break in my new shoes on some small, crumbly limestone cliffs next to the track of the elementary school I went to. I was scouting out which portions of the cliff would be manageable when I noticed by my feet an otherwise inconspicuous rock with two or three dimples on one end. Fossils hadn't really been on my mind for most of the week, with school and climbing occupying the space instead... but that shape screamed at me. ( are you thinking what I'm thinking...) I overturned it, and looking back at me where the coils of an ammonite... missing those rare inner whorls, but still the largest, best preserved ammonite I had ever come across... and right next to the track/field area that I frequented as a little kid, tucked away between those trees and a cliff! Here it was as found, once turned over, and then cleaned up. After such a pleasant surprise, finding some sturdy rock to get my hands on and scampering around those cliffs was the perfect cherry on top to bring my evening to an close

Hi all! Perhaps this is a dumb question, but I' still new to the forum as well as the hobby itself, so I offer a teaching moment - In round rock, (just north of austin in central texas), I have a location at the base of a limestone cliff where after some gritty mining efforts I've come across an extremely dense pocket of what I've been informed are internal casts of rudists. That ID was great!, but I'm having trouble learning about what the actual organisms were like. I've tried researching quite a bit with no clear picture of what these are that I'm discovering. Also geologic maps of the area have some disagreement, so the exact spot could be Edwards limestone, eagle ford, or buda limestone. I understand (I think) that these were some variation of a mollusk but the story ends there. Discovering these would be even more magical if I had a proper understanding of what these organisms were like, looked like, and what role they played in their environment while they were living. I know these are a common fossil so many of you will have a wealth of knowledge about these. Please enlighten me, I'd love to learn! Below are some examples for reference:

Next weekend, November 2 & 3 the Paleontological Society of Austin will be holding our annual show. Dealers, displays, family oriented fun. Presentations by Our club and folks from the University of Texas. https://austinpaleo.org/fest.html hope to see some of you there. Look me up. Erich

I found this rock near Round Rock, TX in Brushy Creek. Not sure if it has a fossil but looked unique. Any help identifying is appreciated. Thanks. Size of “fossil”: around 4 cm at widest point

Please take a look at this. It's about 8"x4"x5"... guessing. But extremely interesting. I found it in a creek bed here in Round Rock TX. What is it?

Sorry about the title and tags. I don't know what to say. Tags are hard too. Anyway, give me a name please so I can go learn.

Is this part of a coral?

Just joined after seeing a post online from another member from Round Rock Texas who found a fossil in Brushy Creek which I can see every day as I look out my window at work.

Large heart urchin collected in Round Rock, TX, presumably upper Cretaceous. It's 4" x 4.5" and quite large compared to others collected at the same site. Hoping to find out more about it. Thanks!