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Facts and Information

Huntonia Triolobites

Huntonia lingulifer fossil trilobite from Oklahoma

Fast Facts about Huntonia Trilobites

Taxonomy: Phylum: Arthropoda - Class: Trilobita - Order: Phacopida - Suborder: Phacopina - Family: Dalmanitidae - Genus: Huntonia

Common Genus: huntonensis, oklahomae, lingulifer

Age: Devonian

Distribution: Oklahoma, U.S.
The Huntonia genus is found in the Haragan and Bois D'Arc Formations of Oklahoma.

Body Size:
Huntonia trilobites are medium in size. They range from around an inch to nearly 5 inches (13 cm).

Like all Phacopida trilobites, their large eyes and body shape indicate a predatory lifestyle, patroling the sea floor.

Physical Appearance:
Huntonia are beautiful trilobites. They have a "snout" protruding from their cephalon, long genial spines (spines on the cheaks), and a long spine on the pygidium.

Huntonia Trilobite Facts and Information

Huntonia trilobites have an interesting look. They have a "snout" on the front of their cephalon, they have large, round, eyes that stick up from the cephalon, short genial spines, and a pygidial spine (tail). The main difference between the more rare Huntonia lingulifer and the more common Huntonia huntonensis is that H. lingulifer has a much longer pygidial spine.

Huntonia trilobites can range in size. Many found are between 2 and 3 inches. They can however reach sizes that approach 6". Bob Carroll had been prepping a few that were well over 5" in length when we were there.

Based on the shape of the trilobite, it roamed the bottom of the sea floor, possibly hunting or scavanging.

Image sequence of the preparation of a Huntonia Trilobite from Oklahoma

Preparation sequence of the Huntonia lingulifer trilobite

Here is the Huntonia Fossil as it was found

Locality Information

Huntonia Trilobites are found in the Lower Devonian Haragan Formation in Coal County, Oklahoma.

The trilobites on this page came from a collecting trip into Bob Carroll's quarry at Black Cat Mountain.

Here is the fossil trip to Black Cat Mountain, Oklahoma.

Huntonia Fossil Examples
H. lingulifer and H. huntonensis

Huntonia lingulifer

Huntonia lingulifer trilobite fossil.

Closer look at the Huntonia trilobite as found.

Fully prepped Huntonia trilobite fossil
Location:Black Cat Mountain, Oklahoma
Age:Lower Devonian
Formation: Haragan Formation

Huntonia huntonensis

These Huntonia are more common and have a shorter pygidial spine.

This is a pygidium of a huntonia huntonensis trilobite. Notice the shorter spine than the lingulifer trilobite fossil

Here are two pieces of Huntonia huntonensis. These show how large they can become. For example, the remaining part of the pygidium on the left is about 1.5 inches. Doing a quick ratio conversion, the complete trilobite would have been around 5.7"

Recommended Books

Trilobites: Common Trilobites of North America (A NatureGuide Book)
by Jasper Burns, 2000

Jasper Burns has some great illustrated fossil guide books. This one is on the Trilobites of North America. It has detailed illustrations of 41 species of North American trilobites and includes information about trilobite paleobiology, vision, growth, extinction, and much more! It's a nice little resource book for those interested in North American trilobites. It's also a very inexpensive book. Check it out!

The Trilobite Book: A Visual Journey
by Dr. Riccardo Levi-Setti, 2014

This is an updated (2014) hardcover (kindle available) of his famous 1994 book. It now has color images instead of black and white ones. The images are of prefectly prepared trilobites from all over the world. this book is geared toward the beginner and does not get overly technical. However, it's wonderful just to see the pictures and is a must for any trilobite enthusiast.

Trilobites for Sale:

Trilobites from Fossil Era
Trilobite fossils are some of the most beautiful and collectible fossils in the world! There are countless species of trilobites. They make beautiful display and conversation pieces. Common ones make very affordable for gifts to fossil and paleontology enthusiasts. Fossil Era has a huge selection of top quality trilobites from many states and many countries. It's fun just to browse through the inventory and look at all the different types!

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