Detailed Flexicalymene Trilobite, Mt. Orab, Ohio

$120.00

Description

 For sale is a very detailed Flexicalymene retrorsa trilobite from the Richmond Formation, Mt. Orab, Ohio. The specimen is almost completely intact, save for a couple of nicks along the thorax. The pygidium is partially enrolled whilst the rest of the body is prone. This is a fine trilobite; cephalon and thorax are very detailed and has been well prepped. There has been no restoration done to this fossil; it is 100% natural.

There are two species of Flexicalymene known from the Richmond Formation; F. meeki and F. retrorsa. The latter is more uncommonly found and can be distinguished from F. meeki by its lack of genal spines.

Note: This fossil is not freestanding

Genus: Flexicalymene

Species: Flexicalymene retrorsa

Location: Richmond Formation, Mount Orab, Ohio, USA

Dimensions of Matrix:

Length: 1.444” (36.68mm)

Width: 1.097” (27.88mm)

Weight: 14.78 grams (0.521 oz.)

Dimensions of Trilobite:

Length: 1.002” (25.46mm)

Width: 16.55" (0.652)

Trilobites (meaning “three lobes”) are a group of extinct marine arthropods that lived in the Palaeozoic Era. They first appeared during the Atdabanian stage of the Early Cambrian period (521 million years ago) and throughout the lower Palaeozoic. Their numbers began to slowly decline during the Silurian period until all trilobite orders, except the Proetids, died out during the Devonian period. Trilobites were widely dispersed throughout the world’s oceans and had many different lifestyles; some were predators and scavengers while others were filter feeders and lived off plankton. Currently there are approximately 17,000 species known, with many more still waiting to be discovered. Unfortunately, trilobites did not survive the Permian-Triassic extinction, where 95% of all life on Earth went extinct.

Specifications

Dimensions of Matrix:

Length: 1.444” (36.68mm)

Width: 1.097” (27.88mm)

Weight: 14.78 grams (0.521 oz.)

Dimensions of Trilobite:

Length: 1.002” (25.46mm)

Width: 16.55" (0.652)

Genus: Flexicalymene

Species: Flexicalymene retrorsa

Location: Richmond Formation, Mount Orab, Ohio, USA

Geological era: Palaeozoic

Period: Ordovician

Age (MYA): 445 Million Years

All orders are dispatched within 24 hours, except for weekends and public holidays. Below is our shipping chart, all prices are in USD. Orders $250 USD and over come with free standard postage worldwide.
Standard postage takes 6+ business days to arrive, whereas Express is only 1-4 business days.

Region Standard (tracked) Express (1-4 business days)
North America $12 $25
UK & Europe $16 $30
New Zealand $10 $20
Australia Free $8

Our lifetime guarantees means you can buy from us with absolute confidence. If at any time you discover the condition of your fossil was not as described (e.g. has restoration or repairs not as described) we will issue you a full refund including postage.

If your item(s) arrives damaged, or you are not 100% satisfied with it, please contact us with the details and if the problem cannot be resolved we will issue you a full refund upon receiving the item back in the mail. Our refund will include the whole amount you paid as well as the cost of your postage. We strive to make our customers happy so please contact us if you have any trouble or questions.