Unidentified jurassic find

[Mctapmonkey]

Yes, I have had a short holiday near Ravenscar.

Here is another item.

I'm hoping that someone can tell what I have here.

Its from Ravenscar, (Robin Hoods Bay end) North Yorkshires Jurassic coast.

The area yields ammonites, belemnites and marine bivalves.

[TqB]

Not quite sure but the second photo looks like a cross section of a somewhat crushed Pinna shell. You get very large ones (over a foot long) in the Jamesoni Zone at that end of Robin Hood's Bay, often in beds with bioturbation (trace fossils) which would explain the appearance of the first photo.

[Mctapmonkey]

Thank you,TqB, for being so patient with a rank amature.

Would this one be the base of the same thing. I saw a lot of long fluted traces in that dark crumbly rock which were impossible to pick up without them crumbling.

[TqB]

It might be, hard to tell from your photos. You should be able to see fibrous shell structure where it's broken.

 

(No patience needed, we're glad to help.)

 

Here's a typical one from the same beds:

 

 

[Miocene_Mason]

2 hours ago, TqB said:

Here's a typical one from the same beds:

Typical!?! That things huge! I'm gonna have to come right over there and find one *gets up and starts running eastwards*

[TqB]

24 minutes ago, WhodamanHD said:

Typical!?! That things huge! I'm gonna have to come right over there and find one *gets up and starts running eastwards*

 

[caldigger]

24 minutes ago, WhodamanHD said:

Typical!?! That things huge! I'm gonna have to come right over there and find one *gets up and starts running eastwards*

 

Your feet might get a little wet!

[Miocene_Mason]

3 minutes ago, caldigger said:

 

Your feet might get a little wet!

No I've been working on my hydroplaning, I've got a good coach: