Currently showing records 1 - 20 of 1866 total

More Info Image Taxa Strat Unit Contributor
Deltodus Marshall formation Mary Ann Szwabowski

Submitted on 2021-09-27 by Mary Ann Szwabowski

Location (approximate): Napoleon, Jackson, MI

Strat unit: Marshall formation

Submitter notes: This speciman from the lower Marshall Formation is a crusher tooth belonging to the Chondrichthyans class of fish and measures 12.7mm long

Photo title: Shark Tooth

Taxa present: Deltodus

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Fistulipora , Mediospirifer audaculus Silica formation Mary Ann Szwabowski

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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Paraspirifer bownockeri Silica formation Mary Ann Szwabowski

Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is a mature speciman

Photo title: Pyritized Brachiopod

Taxa present: Paraspirifer bownockeri

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Cornulites , Paraspirifer bownockeri Silica formation Mary Ann Szwabowski

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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Mucrospirifer , Devonochonetes , Chonetes , Paraspirifer bownockeri, Cornulites Silica formation Mary Ann Szwabowski

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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Fistulipora , Platyceras Silica formation Mary Ann Szwabowski

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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Strophodonta demissa, Fistulipora Silica formation Mary Ann Szwabowski

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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Protitanichthys Silica formation Mary Ann Szwabowski

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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Arthroacantha carpenteri Silica formation Mary Ann Szwabowski

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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Hyperoblastus , Hetroschisma , Nucleocrinus Partridge Point formation Mary Ann Szwabowski

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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Paraspirifer bownockeri Silica formation Mary Ann Szwabowski

Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: None

Photo title: Brachiopod

Taxa present: Paraspirifer bownockeri

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Brachiopoda Dundee formation Mary Ann Szwabowski

Submitted on 2021-09-22 by Mary Ann Szwabowski

Location (approximate): Sylvania, Lucas, OH

Strat unit: Dundee formation

Submitter notes: None

Photo title: Brachiopods

Taxa present: Brachiopoda

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Arthroacantha carpenteri Silica formation David Thompson

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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Silica formation David Thompson

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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Arthroacantha carpenteri, Sulcoretepora deissi Silica formation David Thompson

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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Silica formation David Thompson

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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Pseudoatrypa , Fistulipora Silica formation Mary Ann Szwabowski

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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Pseudoatrypa , Fistulipora Silica formation Mary Ann Szwabowski

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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Acinetaster konieckii Silica formation Joseph Koniecki

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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Mytilarca cordata Silica formation Joseph Koniecki

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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