Mazon Creek Best Of The Best Dunbarella Striata Stevens, 1858

[RCFossils]

There are 5 pectinoida (scallops) that can be found in the Mazon Creek deposit.

Aside from Aviculopecten mazonensis, all are uncommon to rare.

Dunbarella striata is commonly found in Pennsylvanian aged black shales but fairly rare in the Mazon Creek deposit.

Like all Mazon scallops, they are only found in the Essex (marine) portion of the deposit.

It has a relatively round shell compared to the much more common Aviculopecten.

I actually collected this first specimen on March 1st 2020 (opening day for collecting). It just split open this evening and is the largest example that I have seen.

 

[RCFossils]

Here are a few more typical examples.

[RCFossils]

Here you can see the size difference.

The specimen on the is a more typical sized example.

[deutscheben]

Thanks for sharing!

[bigred97]

Wow, what a find! Always good to see excellent specimens still being collected.