Submitted on 2019-07-02 by Mike Palescuk

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Almost a hundred in a one foot square crumbly portion of Unit 13.

Photo title: Mucrospirifer prolificus

Taxa present: Mucrospirifer prolificus

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Submitted on 2019-07-21 by Nick Katsarelas

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This is the largest (partial) trilobite I ever found. It's approximately 4 cm across the cephalon. It was beautifully prepped by Joseph Koniecki.

Photo title:

Taxa present: Eldredgeops rana crassituberculata

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Submitted on 2021-03-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title:

Taxa present: Mucrospirifer prolificus, Cornulites

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This speciman is 5-1/2" at its widest point with association of almost 100 Spirorbis (coiled) worms and bryozoan

Photo title: Nautiloid Cephalopod

Taxa present: Hederella filiformus, Heracloceras ineligans, Spirorbis

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This speciman measures 2-1/4" and exhibits a calcite vug, sponge boring holes, and Cornulites worm tubes and furrows

Photo title: Pyritized Brachiopod with Calcite Crystal

Taxa present: Cornulites , Paraspirifer bownockeri

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Speciman measures 2-1/2" with original shell intact.

Photo title: Pelecypod

Taxa present: Ptychopteria flabellum

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Submitted on 2021-02-19 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Gastropod

Taxa present: Spinyplatyceras arkonense

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Submitted on 2021-02-17 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The speciman has pyrite flakes on the surface

Photo title: Gastropod with Pyrite

Taxa present: Platyceras

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This speciman is encrusted with Botryllopora socialis

Photo title: Brachiopod with Bryozoan

Taxa present: Strophodonta , Botryllopora socialis

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Mature pyritized brachiopod encrusted with bryozoan

Photo title: Brachiopod with Bryozoan

Taxa present: Paraspirifer bownockeri, Fistulipora

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Submitted on 2021-02-19 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This gastropod is encrusted with two different bryozoan

Photo title: Gastropod with Bryozoan

Taxa present: Platyceras bucculentum, Fistulipora , Hederella filiformus

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This gastropod is encrusted with bryozoan

Photo title: Gastropod with Bryozoan

Taxa present: Atactotoechus typicus, Platyceras bucculentum

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Submitted on 2024-09-07 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This solitary coral is encrusted with bryozoan

Photo title: Solitary Coral

Taxa present: Fistulipora , Heliophyllum halli

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Submitted on 2021-02-19 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This brachiopod is fully encrusted with bryozoan

Photo title: Brachiopod with Bryozoan

Taxa present: Paraspirifer bownockeri, Fistulipora , Hederella filiformus

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Brachiopod encrusted with bryozoan

Photo title: Brachiopod with Bryozoan

Taxa present: Fistulipora , Mediospirifer audaculus

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Submitted on 2024-03-20 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Speciman measure about 6.0 cm

Photo title: Trilobite - Eldredgeops milleri

Taxa present: Eldredgeops milleri

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Brachiopod with worm tubes

Photo title: Brachiopod with Worm Tubes

Taxa present: Cornulites , Paraspirifer bownockeri

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Pryritzed brachiopod with bryozoan

Photo title: Pyritized Brachiopod with Bryozoan

Taxa present: Fistulipora , Paraspirifer bownockeri

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Submitted on 2021-02-16 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Mature pyritized brachiopod encrusted with bryozoan and

Photo title: Pyritized Brachiopod with Bryozoan

Taxa present: Fistulipora , Paraspirifer bownockeri

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is a mature pyritized brachipod

Photo title: Pyritized Brachiopod with Inarticulate Bracjipods

Taxa present: Mucrospirifer , Devonochonetes , Chonetes , Paraspirifer bownockeri, Cornulites

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