@Katie-collins-2, can you help with ID here?

@Samantha-Ocon Thank you 🙂

It’s some sort of oyster. I don’t know the genus though.

@Mackenzie-Smith Thank you. It’s a progress in the ID

@Mackenzie-Smith, @Corina-Fernandes, Sponge?

@samantha-ocon I found this fossil to next the specimen that maybe can be a demosponge. The combs that have that fossil is very similar morphological at the pipes in to inside of this fossil

@corina-fernandes @samantha-ocon I think it could be a sponge too especially since I don’t see septa. Here are some photos of some Carboniferous sponges from Woosters https://woostergeologists.scotblogs.wooster.edu/2015/06/05/woosters-fossil-of-the-week-a-chaetetid-demosponge-from-the-upper-carboniferous-of-southern-nevada/

Big thanks @Mackenzie-Smith and @samantha-ocon 🙂 for your help. The identification these fossil has been a enigma for me!

Any insight, @Mackenzie-Smith?

@samantha-ocon and @corina-fernandes I don’t know what it is but I do see some shelly parts on one of those columns. It could be some sort of burrowing bivalve?

@mackenzie-smith and @samantha-ocon existing massive bivalves incrusted in the limestones, this zone is cretaceous (albian) age. But this area has contact with miocenic calcareus deposit. I had considered the hypothesis must be the throns of one urchin, Pseudocidaris mammosa, but this urchin pertain to jurassic era…

@jbauer thank you for your comment. I haven’t see your post. Only appear in the site but don’t in the posts of APP.

How does one expose a fossil like this?

@susy-quinn put the specimen above one color cardboard and choose the best angle to take your photo. Use one strong light focus

I’m sorry, I guess I don’t know the correct verbage here. What I meant was how does one expose the fossil itself? I’m assuming it wasn’t found clean and “exposed” like this.

@susy-quinn No problem. Probably I don”t understand because I don’t speak english 🙂 I am writting with one diccionary. The site of App has videos that explain, how you do

Hi, @corina-fernandes! Favosites went extinct during the Permian-Triassic transition, so the time period on this is wrong (or perhaps the ID is wrong). Unfortunately, I’m not too great with coral IDs, so I’m going to tag in @JBauer and @Mackenzie-Smith.

Thank you @samantha-ocon. Probably I identified wrong the fossil. The area where I found the specimen is the cretaceous period for sure. I will asking for the help of @JBauer or @mackenzie-smith. Thanks 🙂

@Mackenzie-Smith

@samantha-ocon is correct, there are no Favosites in the Mesozoic. I was looking at a geological map of the area and there is a Paleozoic Plutonic Complex nearby. Plutonic implies that it is igneous in nature (so no fossils) but where it is a “complex” I don’t know if there might be a sedimentary layer. Favosites are a tabulate coral meaning that…[Read more]

I appreciated your clear explanation about this element @mackenzie-smith. I don”t geological formation, but the hypothesis that this is a demosponge is very possible. Thank you for your help :). am going to wait for the @JBauer opinion

Hi all- @mackenzie-smith @samantha-ocon @corina-fernandes – MacKenzie had excellent information. It can’t be a tabulate coral, it could be scleractinian but we should expect to see septae (which radiate into the open spaces like wagon wheels). Which we don’t see here. I don’t think it’s a bryozoan so I agree with MacKenzie’s demosponge idea. There…[Read more]

Thank you very much @jbauer for you help. I found one specimen that maybe can help identify this speciment. Thanks for all! @samantha-ocon @mackenzie-smith and @jbauer