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Platyceras rarispinum |
Alpena formation |
David Thompson |
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Submitted on 2009-05-05 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A different view of the Platyceras showing the tightly coiled conch and the expansion of the shell. The Spine is in the background
Photo title: Platyceras rarispinum
Taxa present: Platyceras rarispinum
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Cyrtina alpenensis |
Potter Farm formation |
Joseph Kchodl |
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Submitted on 2009-04-12 by Joseph Kchodl
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: Two nice specimens of a common braciopod in this formation. These specimens are approximately 10mm wide.
Photo title: Brachiopods
Taxa present: Cyrtina alpenensis
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Trachypora alternans |
Potter Farm formation |
Joseph Kchodl |
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Submitted on 2009-04-12 by Joseph Kchodl
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: Two typical specimens of the branching coral. The larger specimen measures 38.5mm high and 15.2mm at the widest branch. The smaller measures 17.4mm tall and 14.7mm at the widest.
Photo title: Coral
Taxa present: Trachypora alternans
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Protitanichthys rockportensis |
Silica formation |
Travis Vivian |
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Submitted on 2009-04-12 by Travis Vivian
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Placoderm (armored fish) median dorsal plate measuring 49.5mm long by 31.6mm at the widest point.
Photo title: Arthrodire Fish Plate
Taxa present: Protitanichthys rockportensis
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Protitanichthys rockportensis |
Silica formation |
Travis Vivian |
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Submitted on 2009-04-12 by Travis Vivian
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Placoderm (armored fish) jaw plate measuring 83.9mm long by 25.7mm at the widest point.
Photo title: Arthrodire Jaw
Taxa present: Protitanichthys rockportensis
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Protitanichthys rockportensis |
Silica formation |
Travis Vivian |
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Submitted on 2009-04-12 by Travis Vivian
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Placoderm (armored fish) jaw plate measuring 148.6mm long by 36.0mm at the widest point.
Photo title: Arthrodire Jaw
Taxa present: Protitanichthys rockportensis
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Monodechenella macrocarpa |
Hungry Hollow formation |
John Benson |
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Submitted on 2009-04-12 by John Benson
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: Surface collected between the clay pit and river at Hungry Hollow. It measures 31mm long.
Photo title: Trilobite
Taxa present: Monodechenella macrocarpa
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Petrocrania hamiltonae |
Silica formation |
John Benson |
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Submitted on 2009-04-12 by John Benson
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: Two fine specimens on a large Strophomenid brachiopod. Surface collected from the spoil piles at Milan. Note coin for size.
Photo title: Inarticulate Brachiopods
Taxa present: Petrocrania hamiltonae
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Cyrtina sp. |
Silica formation |
John Benson |
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Submitted on 2009-04-12 by John Benson
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: Three specimens surface collected from the spoil piles at Milan. The largest is 10mm wide.
Photo title: Brachiopods
Taxa present: Cyrtina sp.
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Tentaculites sp. |
Silica formation |
John Benson |
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Submitted on 2009-04-12 by John Benson
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: Two specimens in matrix surface collected at the spoil piles at Milan.
Photo title: Tentaculites
Taxa present: Tentaculites sp.
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Mediospirifer audaculus |
Silica formation |
Julie Brown |
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Submitted on 2009-04-12 by Julie Brown
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Side view of both valves of a typical specimen. Note the fine narrow ribs.
Photo title: Brachiopod
Taxa present: Mediospirifer audaculus
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Mediospirifer audaculus |
Silica formation |
Julie Brown |
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Submitted on 2009-04-12 by Julie Brown
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Brachial view of typical specimen. Note the fine narrow ribs.
Photo title: Brachiopod
Taxa present: Mediospirifer audaculus
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Favosites norwoodensis |
Alpena formation |
Joseph Kchodl |
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Submitted on 2009-04-12 by Joseph Kchodl
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A nice specimen measuring 64.4mm high and 64.4mm wide. Collected from spoil piles at the Lafarge North America Alpena Quarry.
Photo title: Coral
Taxa present: Favosites norwoodensis
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Mucrospirifer latus |
Potter Farm formation |
Joseph Kchodl |
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Submitted on 2009-04-12 by Joseph Kchodl
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: Pedicle view of a fine specimen measuring 52.4mm long and 15.0mm wide.
Photo title: Brachiopod
Taxa present: Mucrospirifer latus
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Mucrospirifer latus |
Potter Farm formation |
Joseph Kchodl |
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Submitted on 2009-04-12 by Joseph Kchodl
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: Brachial view of a fine specimen measuring 52.4mm long and 15.0mm wide.
Photo title: Brachiopod
Taxa present: Mucrospirifer latus
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Eldredgeops milleri |
Silica formation |
David Clark |
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Submitted on 2009-04-12 by David Clark
Location (approximate): Paulding, Paulding, OH
Strat unit: Silica formation
Submitter notes: A fine 41.5mm prone specimen on matrix.
Photo title: Trilobite
Taxa present: Eldredgeops milleri
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Dolatocrinus sp. |
Alpena formation |
David Clark |
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Submitted on 2009-04-12 by David Clark
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A side view of the broken specimen showing an internal crystal structure of mineral replacement.
Photo title: Crinoid Calyx
Taxa present: Dolatocrinus sp.
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Dolatocrinus sp. |
Alpena formation |
David Clark |
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Submitted on 2009-04-12 by David Clark
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A broken specimen showing an internal crystal structure of mineral replacement.
Photo title: Crinoid Calyx
Taxa present: Dolatocrinus sp.
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Heteroschisma sp. |
Genshaw formation |
David Clark |
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Submitted on 2009-04-12 by David Clark
Location (approximate): Alpena, Alpena, MI
Strat unit: Genshaw formation
Submitter notes: A small 6mm specimen on matrix.
Photo title: Blastoid
Taxa present: Heteroschisma sp.
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Devonoblastus whiteavesi |
Hungry Hollow formation |
David Clark |
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Submitted on 2009-04-12 by David Clark
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: A rare specimen measuring 9mm in height.
Photo title: Blastoid
Taxa present: Devonoblastus whiteavesi
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