Ordovician Trilobites

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Raymondites longispinus (Walcott 1876)

[Glabella and Partial Cephalon with Brachiopod Fragments in Limestone]

Ordovician - Blackriverian
Platteville Formation
Mifflin Member

Grant County
WISCONSIN
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Norinia convexa (Troedson 1937)

[Near-Complete in Calcareous Shale]

Ordovician
Yinchufu Series

Yongshun

Hunan Province
CHINA
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Homotelus bromidensis (Esker)

[Partially Prepared Complete in Limestone]

Ordovician - Blackriverian
Bromide Formation
Pooleville Member

Geological Enterprises Quarry

Carter County
OKLAHOMA
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Isotelus mafritzae

[Near Complete and Partially Disarticulated in Calcareous Shale]

Ordovician
Cobourg Formation

Colborne

Ontario
CANADA
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Platycalymene duplicata (Murchison)

[Pygidium in Silty Shale]

Ordovician - Llanvirnian

Llanfawr Quarry
Llandrindod Wells

Wales
UNITED KINGDOM
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Ogyginus corndensis

[Impressions in Silty Shale]

Ordovician - Llanvirnian

Gilwern Quarry
Powys

Wales
UNITED KINGDOM
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz