Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 3 cm across.

Photo title: Crinoid calyx

Taxa present: Dolatocrinus barrisi

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: The picture is a view of cup and tegmen of the same specimen. The calyx is 3.5 cm across.

Photo title: Crinoid calyx

Taxa present: Dolatocrinus stellifer

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 4.5 cm across.

Photo title: Crinoid calyx

Taxa present: Megistocrinus spinulosus

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of both sides of the same specimen. The calyx is 5 cm across.

Photo title: Crinoid calyx

Taxa present: Megistocrinus nodosus

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of both sides of the same specimen. There is an inarticulate brachiopod attached to the back side of the gastropod. The gastropod is 5 cm across.

Photo title: Gastropod with Brachiopod

Taxa present: Platyceras carinatum, Petrocrania hamiltoniae

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 4 cm across

Photo title: Crinoid calyx

Taxa present: Arthroacantha carpenteri

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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 2012-01-11 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: Phacops rana milleri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 4 cm at its widest.

Photo title: Crinoid calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: The specimen is 4.3 cm across.

Photo title: Crinoid calyx

Taxa present: Megistocrinus multidecoratus

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 2.5 cm across

Photo title: Crinoid calyx

Taxa present: Dolatocrinus romingeri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of both sides of the same specimen. The calyx is 4 cm across

Photo title: Crinoid calyx

Taxa present: Megistocrinus multidecoratus

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen with a coral growing around the base of the cup. The calyx is 3.5 cm across

Photo title: Crinoid calyx with coral

Taxa present: Dolatocrinus romingeri, Antholites alpenensis

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 2 cm across

Photo title: Crinoid calyx

Taxa present: Dolatocrinus romingeri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 5 cm across

Photo title: Crinoid calyx

Taxa present: Megistocrinus multidecoratus

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Submitted on 2012-01-10 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: This specimen is 5.5 cm across.

Photo title: Cephalopod

Taxa present: Dolorthoceras lambtonense

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Submitted on 2011-12-27 by David Clark

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: 2 mm crinoid calyx, possibly Arthroacantha carpenteri. Photo via SEM

Photo title: Juvenile crinoid calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2011-12-27 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Trilobite cluster as found unprepared

Photo title: Trilobite cluster as found

Taxa present: Basidechenella arkonensis, Eldredgeops

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Submitted on 2011-12-27 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Beautifully preserved Basidechenella with the axial spines. The Eldredgeops on the bottom right is a molt and missing it's head.

Photo title: Trilobite cluster

Taxa present: Basidechenella arkonensis, Eldredgeops

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Submitted on 2011-12-14 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is undescribed from the Hungry Hollow. It is assigned to Deltacrinus as a temporary best fit. Like many crinoids from Arkona, this crinoids needs to be studied. The specimen is 1.3 cm across.

Photo title: Crinoid calyx

Taxa present: Deltacrinus sp.

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