Jump to content

Marshalltown Formation


Recommended Posts

I plan on hunting the Marshalltown formation in New Jersey / Delaware soon. I can’t find what fossils to expect online. Does anyone have resources or know what to expect? 

Link to post
Share on other sites

I believe Weller has a section on the Marshalltown in his "A Report on the Cretaceous Paleontology of New Jersey." Note though that many of the fauna names have changed. I would expect to find a number of Exogyra ponderosa erraticostata. You may also find some original shell material, but it is incredibly fragile and susceptible to "original shell disease."  

Link to post
Share on other sites

Basically what he said, you will know you’re in the right spot when you see the Exogyra, well preserved and some with Cliona boring sponge fossils on the shells. Also plenty of Pycnodonte. I’ve found shellbeds of other species but like he said, they’re incredibly fragile and difficult to preserve. Still, one of my favorite New Jersey Cretaceous formations to hunt! 


Edited by TheNavesinkNinja
  • Enjoyed 2
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...