Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Three views of the same specimen. The brachiopod is 5.5 cm across. There is an inarticulate brachiopod attached to the Paraspirifer.

Photo title: Brachiopod

Taxa present: Paraspirifer bownockeri, Petrocrania hamiltoniae

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Submitted on 2025-09-03 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The trilobites measure 1.8 cm each.

Photo title: Trilobites

Taxa present: Eldredgeops milleri

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Submitted on 2012-01-12 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Multiple views of the same specimen. The brachiopod is 6.4 cm across.

Photo title: Brachiopod

Taxa present: Mediospirifer audaculus

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Submitted on 2025-09-03 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: One of the largest trilobites found at this site. The trilobite measures 5.3 cm across the cephalon.

Photo title: Trilobite

Taxa present: Eldredgeops crassituberculata

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Submitted on 2025-09-03 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: This specimen is not as large as the previous but is still a very large specimen for this site. The trilobite measures 4.5 cm across the cephalon.

Photo title: Trilobite

Taxa present: Eldredgeops crassituberculata

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Submitted on 2025-09-03 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: Another large specimen. This one also measures 4.5 cm across the cephalon.

Photo title: Trilobite

Taxa present: Eldredgeops crassituberculata

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Submitted on 2025-09-03 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: And another large specimen. This specimen measures 4.7 cm across the cephalon.

Photo title: Trilobite

Taxa present: Eldredgeops crassituberculata

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Submitted on 2012-01-21 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: This photo shows the pedicle and brachial valve of the same specimen. The specimen measures 6.5 cm across.

Photo title: Brachiopod

Taxa present: Megastrophia concava

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Submitted on 2012-01-22 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The coral measures 5 cm in diameter.

Photo title: Coral

Taxa present: Heterophrentis simplex

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Submitted on 2012-01-22 by Joseph Koniecki

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This specimen measures 1.5 cm in diameter. The photo shows both sides of the same specimen.

Photo title: Coral

Taxa present: Pleurodictyum plana

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Submitted on 2012-02-23 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This crown is 6 cm tall.

Photo title: Crinoid crown

Taxa present: Pithocrinus cooperi

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Submitted on 2012-02-23 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 4.3 cm tall.

Photo title: Crinoid crown

Taxa present: Pithocrinus cooperi

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Submitted on 2012-03-12 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This calyx is 2.8 cm across.

Photo title: Crinoid calyx

Taxa present: Dolatocrinus romingeri

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Submitted on 2012-03-13 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 2.5 cm tall.

Photo title: Crinoid

Taxa present: Euryocrinus barrisi

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Submitted on 2012-03-13 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 2.5 cm tall.

Photo title: Crinoid

Taxa present: Euryocrinus barrisi

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Submitted on 2012-03-13 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 3 cm tall.

Photo title: Crinoid

Taxa present: Euryocrinus barrisi

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Submitted on 2012-03-13 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 5 cm across.

Photo title: Crinoid crown

Taxa present: Pithocrinus cooperi

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Submitted on 2012-03-13 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This specimen is 6 cm tall.

Photo title: Crinoid crown

Taxa present: Pithocrinus cooperi

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Submitted on 2012-06-17 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: This is a very rare crinoid from the Thunder Bay formation. It measures 3 cm tall.

Photo title: Crinoid crown

Taxa present: Cunctocrinus sp.

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Submitted on 2012-07-03 by Joseph Koniecki

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This specimen is 12 cm tall.

Photo title: Bryozoan

Taxa present: Fistulipora sp.

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