Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Bryozoan has left this small gastropod unidentifiable

Photo title: Gastropod with Bryozoan

Taxa present: Fistulipora , Platyceras

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Alpena, Alpena, MI

Strat unit: Partridge Point formation

Submitter notes: None

Photo title: Blastoids

Taxa present: Hyperoblastus , Hetroschisma , Nucleocrinus

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Brachiopod with Bryozoan

Taxa present: Strophodonta demissa, Fistulipora

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title:

Taxa present: Protitanichthys

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Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Crinoid Calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2021-08-16 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This complete pyritized calyx shows the dramatic arm branching bifurcating again and again.

Photo title: Pyritized Crinoid Calyx

Taxa present:

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Submitted on 2021-08-16 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This entire plate was expertly prepared by J. Koniecki who is familiar with the Silica and took special care to reveal this Bryozoan colony on the plate.

Photo title: Detail of Bryozoan colony

Taxa present:

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Submitted on 2021-08-16 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Here is closer view of the crown showing charactoristic branching of arms and detail of stem column

Photo title: Detail of crinoid crown

Taxa present: Arthroacantha carpenteri

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Submitted on 2021-08-16 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This plate from the Silica shale was collected long ago, but I have not been able to get anyone with skills needed to prepare it until now. It shows a complete Arthroacantha carpenteri crinoid crown with arms, caylx and stem plus a distinctive Bryozoan colony related to the Silica Fm., Sulcoreteporra deissi (Mc Nair 1937) Size of plate 9" or 23 cm wide by 8 1/2" or 21 cm. Weighs 8 .5 lbs.

Photo title: Silica Fossil plate

Taxa present: Arthroacantha carpenteri, Sulcoretepora deissi

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Submitted on 2021-08-09 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Brachiopod with Bryozoan

Taxa present: Pseudoatrypa , Fistulipora

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: Crinoid calyx with exquisite tegmen.

Photo title: Crinoid calyx

Taxa present: Dolatocrinus stellifer

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Pelecypod

Taxa present: Limoptera macroptera

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: None

Photo title: Crinoid crowns

Taxa present: Dolatocrinus asterias

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: None

Photo title: Crinoid calyx

Taxa present: Dolatocrinus barrisi

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: None

Photo title: Brachiopod with coral

Taxa present: Schizophoria ferronensis, Aulopora sp.

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Dundee formation

Submitter notes: None

Photo title: Rostroconch

Taxa present: Hippocardia cunea

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Pelecypod

Taxa present: Mytilarca cordata

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Brittle Starfish

Taxa present: Acinetaster konieckii

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Submitted on 2021-06-24 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: Crinoid calyx with crinoid holdfast attached to tegmen.

Photo title: Crinoid calyx

Taxa present: Dolatocrinus asterias

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Submitted on 2021-05-08 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Pyritized Brachiopod

Photo title: Brachiopod

Taxa present: Paraspirifer bownockeri

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