Views of the Mahantango

I found two gastropod steinkerns in my collection of Lime Creek Formation fossils from Rockford fossil Park in Iowa. They caught my attentio...

Another brachiopod from the Lime Creek Formation is Theodossia hungerfordi . From what info I can find (primarily Paleodb.org ) Theodossia ...

Here is another species of Brachiopod I picked up from E-bay. The label that came with them said they were " Spirifer whitneyi " f...

Hystricina trulla is another wavy/spiny surfaced brachiopod like Spinatrypa. I liken it to Pseudoatrypa because it has a similarly deep, co...

Spinatrypa is a species I didn't know existed in the Devonian until I found my first specimens in the Windom Shale at the Penn Dixie cen...

These next specimens, which come from Rockford, Iowa, I purchased from a seller on E-bay. They are Strophonella reversa and come from the L...

In line with my previous post regarding Protodouvillina , here are some examples from the upper Devonian of Iowa. Pedicle valve Anter...