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Eldredgeops norwoodensis

Wed, 03 Jul 2013 20:11:53 +0000

A triple specimen of Eldredgeops norwoodensis from Johnson County, Iowa. The first photo is as found. After cleaning it with water and a toothbrush I noticed there was a third specimen. The matrix is quite hard and requires dolomite powder as the abrasive.

Eldredgeops

Tue, 19 Mar 2013 16:01:02 +0000

Here is an Eldredgeops norwoodensis from the Devonian Little Cedar Formation of Iowa.

Crassiproetus arietinus

Wed, 20 Feb 2013 14:18:18 +0000

As far as I can tell this is a Crassiproetus arietinus from the Little Cedar Formation of Johnson County, Iowa. I say "as far as I can tell" because the trilobites from this formation are not very well documented and C. arietinus is the closest match I could make based on a line drawing and written description. The remarks after the written description state: "Specimens from this interval have been assigned doubtfully to C. arietinus. The holotype is a fragmentary but complete specimen in which the glabell and pygidium have been exfoliated. Since these two features are critical in identifying different species of Crassiproetus, it will be impossible to assign any material to this species with certainty."-- ("Geologic Reconnaissance of the Coralville Lake Area" Orrin Plocher, 1989)

Greenops sp.

Mon, 18 Feb 2013 16:57:22 +0000

This is from the Devonian aged Little Cedar Formation of Johnson County Iowa. It is a small piece containing a Greenops sp. and a rolled Eldredgeops norwoodensis.

Anataphrus borraeus

Thu, 12 Jul 2012 14:56:20 +0000

Paralejurus hamlagdadicus

Tue, 21 Feb 2012 17:22:43 +0000

This is a Paralejurus hamlagdadicus from the Devonian of Morocco. The fantastic preservation and uncommon orange coloring of the eyes made this bug a "must have" for me.

Anataphrus borraeus

Thu, 12 Jan 2012 14:54:20 +0000

Here is a rare association of a prone, rolled, and molt of Anataphrus borraeus from the Galena Formation(Prosser member) of Southeast Minnesota.

Thaleops ovata

Wed, 09 Nov 2011 18:54:14 +0000

This is a Thaleops ovata that I found last fall in the Platteville fm. of Southwest Wisconsin. It took a while but I finally got it back... again(the compressor broke early last spring). The first photo is when found, then scribed, and finally finished with an air abrasive unit.

Acaste sp.

Thu, 03 Nov 2011 15:29:52 +0000

This is an Acaste sp. from the Devonian of Morocco that I picked up at the Denver show this fall. While there were many examples of this trilobite enrolled at the show, there were very few prone specimens.

Small Isotelus

Fri, 09 Sep 2011 22:29:38 +0000

This is a small Isotelus found near Waynesville, OH.