ID Help. I know its a plant... thats about it.

[gord0]

This was found in a rock quarry just outside Austin. I took the picture before I joined this forum so I didn't place a ruler next to it. It is on a Limestone rock, 15" long, 7" high and about 8" thick. I can see from the edge of the rock there is probably another layer of matter inside the rock. Thanks for looking at it and any help you can provide.

[westcoast]

Very nice piece, somebody who knows your local geology (possibly Cretaceous-more than 66 million years old) will chime in with some good info shortly I'm sure.

[caldigger]

Very nice specimen! 

[Creek - Don]

3 hours ago, gord0 said:

This was found in a rock quarry just outside Austin. I took the picture before I joined this forum so I didn't place a ruler next to it. It is on a Limestone rock, 15" long, 7" high and about 8" thick. I can see from the edge of the rock there is probably another layer of matter inside the rock. Thanks for looking at it and any help you can provide.

 

I also found similar aquatic plant in Austin Chalk layer at local creek.    Sea grass perhaps?  

 

[gord0]

Perhaps, I just don't know very much about this subject. Raw beginner.

[Rockwood]

I wouldn't be to anxious to rule out sponge.

[gord0]

Coral maybe?

[Rockwood]

13 minutes ago, gord0 said:

Coral maybe?

Got a ruler ? 

I'd have less problem ruling that out, but we'll see what others say.