An interesting gastropod

[Ludwigia]

I got out to the Wutach valley again one day this week and continued my digging and delving escapades in the Callovian. This time I came up with a couple of nice ammonites.

 

Homeoplanulites sp. 6.5cm.

 

Macrocephalites sp. 7.5cm.

 

But the most interesting discovery for me this time was this gastropod. For starters, it has a partial Chlamys textoria bivalve attached, but the fascinating thing about it is that one side shows the steinkern, while the other side still has the shell on it.

Leptomaria sp. 6cm. The steinkern must have been fully developed before tube worms settled on it, so there must have been many years gone by between death of the gastropod and settlement of the worm colony.

[Fossildude19]

Very cool finds, Roger.

Thanks for showing us. 

Regards,

[Jeffrey P]

More great Wutach finds! Congratulations and thanks for sharing them, Roger.

[belemniten]

Nice finds !

The gastropod looks great 

[Ludwigia]

Thanks, guys. When I started preparing the gastropod, I wasn't sure if it wasn't a tube worm, but it seemed too perfectly spiral to be one. Then I discovered the shell and that confirmed gastropod for me.

[Ludwigia]

Here are another couple of ammonites from that day. A Macrocephalites sp. and a Homeoplanulites sp.

 

 

 

[ynot]

[Ludwigia]