Mined from: Arkona, Ontario, Canada

Era: Devonian era (Palezoic)
Geological Age: Approximately 419-359 mya

Species: Mucrospirifier thedfordensis

Description: Mucrospirifer thedfordensis is an extinct species of brachiopod that lived during the Middle Devonian period. This species belongs to the genus Mucrospirifer, which is known for its distinctive butterfly-shaped shells, a feature that made them stand out among marine invertebrates. The species is commonly found in marine strata and was a filter feeder, attaching itself to the seafloor using its pedicle. Its shell typically ranges in size from 2.5 to 4 cm in length, featuring a fold and sulcus, with elongated, wing-like points extending along the hinge line. The Mucrospirifer genus, including M. thedfordensis, is often referred to as "butterfly shells" due to their fin-like appearance. What makes these brachiopod fossils even cooler is that they were found in Ontario, Canada by amateur rock hounders!

Small
Approximate Size of 1 piece: 2cm x 1cm x 0.5cm
Approximate Weight of 1 piece: 2g

Large
Approximate Size of 1 piece: 3cm x 1.6cm x 1.2cm
Approximate Weight of 1 piece: 7g

Quantity: 1pc

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.