Some Unknowns (Teeth and stuff) Shoal Creek Austin TX Cretaceous

[JamieLynn]

Howdy y'all! I have found a few interesting things that I could use some help with ID.  These are all either Eagle Ford, Del Rio or Georgetown Formation. Any help is appreciated! 

 

First are the teeth:

Are these Protoshyraena teeth? That's what I was able to find online because they look an awful lot like Barracuda teeth I've found in the Miocene. 

1 and 2 :Two teeth - top row and bottom row. Both are about 1/4 inch

3, Assuming this is some kind of Fish Tooth  1/8 inch

 

4. This is an odd thing. I have found Ray teeth here, but this doesn't look like anything I've seen. 1/8 inch

5. Not even sure if this is a tooth..possibly a spine?

 

And now some other thingies:

6. I have found MANY of these things. I have no idea what they are. Part of a starfish? It's a weird little thing

 

7. Another little thing I'm finding quite a few of is this little foram. I'd love to get an ID on it.

 

8. And lastly, this odd little round bicolor thing! I have heard of fossil pearls being found in the Eagle Ford! But I think the indent precludes that idea:. Size 1/8 inch

 

 

 

[Al Dente]

1 hour ago, JamieLynn said:

6. I have found MANY of these things. I have no idea what they are. Part of a starfish? It's a weird little thing

Yes. It is the terminal ossicle of a starfish. On modern starfish, this is where the eyespot is located, but not all starfish have a terminal ossicle shaped like this. I frequently find these in Eocene and Cretaceous deposits here in North Carolina.

[abyssunder]

4. - ray dermal denticle?

[BobWill]

7. Appears to be  Porocystis globularis, an algal fruiting body.

[JamieLynn]

@Al Dente - thank you - glad I was at least in the ballpark. 

@abyssunder - that is a definite possibility. Thanks!

@BobWill - I don't believe so, Porocystis are found in the Glen Rose and Walnut Formations and I've not heard of them found in later formations such as Eagle Ford and Del Rio. Plus, porocystis have the egg shell texture as a distinctive characteristic. A la ....

 

[JohnJ]

4.  Might be an eroded Roveacrinoid.

[NSRhunter]

4 is the broken tip of a ptychodus tooth, maybe mortoni or atcoensis given the star pattern visible, maybe even an anonymous. 

[Al Dente]

3 hours ago, JamieLynn said:

7. Another little thing I'm finding quite a few of is this little foram. I'd love to get an ID on it.

What size are these? Are they perfectly spherical? If so, they might be Orbulina.

[JamieLynn]

@Al Dente They are little flattened disks just like Orbitolina but they don't have the raised center part like O. texana. They are just smooth little disks but twice I've found ones with the structure exposed. They are 1/8 inch 

Here are a few more. This is the other one I found that you can see the structure:

 

this is top and bottom of one:

 

 

 

 

 

 

[LSCHNELLE]

I second (4) as broken off crown of a Ptychodus (likely mortoni from the Atco).

[Jackito]

Those pictures and items look great! I'd love to find a spot that produces fossils like that!