Hi,

I'm new to this forum and fossils. I am trying to identify some of my finds. I hope the large pictures do not annoy anyone. Any help would be appreciated. How do I determine what time period they date and the kind of fossils?

I found this one on a beach in Hatillo, P.R. a few years ago. Someone said it looks like the mold of a Gastorpod (Snail), and possibly a Crinoid Stem right next to it and that there may be fragments of Bivalves or Brachiopods, also. Since I found this on a beach, how do I determine the age?

http://i55.photobucket.com/albums/g159/joecheck/rock1.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock2.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock3.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock4.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock5.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock6.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock7.jpg

http://i55.photobucket.com/albums/g159/joecheck/rock8.jpg

This is a rock that my son found in a park in southern N.J. Someone suggested possibly:
Phylum: Bryozoa
Class: Stenolaemata
Order: Fenestrata
...that is not native to southern N.J. (possibly transported in rock fill).

http://i55.photobucket.com/albums/g159/joecheck/100_2598.jpg

http://i55.photobucket.com/albums/g159/joecheck/100_2599.jpg

I think I found this one in Virginia.

http://i55.photobucket.com/albums/g159/joecheck/100_2601.jpg

http://i55.photobucket.com/albums/g159/joecheck/100_2602.jpg

This bone?!? was found by my son in another southern N.J. park during one of his baseball games.

http://i55.photobucket.com/albums/g159/joecheck/100_2603.jpg

http://i55.photobucket.com/albums/g159/joecheck/100_2604.jpg

http://i55.photobucket.com/albums/g159/joecheck/100_2606.jpg

Looks like the ID's are good. The rock in the first photos looks fairly recent, probably from a coral reef around PR. The rock with the Bryozoa is probably Paleozoic.

Nice fossils joecheck, and :welcome: to TONMO.

Thanks! How recent would you say is the coral reef?

Also, any thoughts on the other two items (the third and fourth set of pictures)?