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Strataster devonicus |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 24 mm across.
Collected and prepared by Patricia Rutkowski.
Photo title:
Taxa present: Strataster devonicus
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Tornoceras uniangulare |
Squaw Bay formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Squaw Bay formation
Submitter notes: 43 mm across.
Collected by Patricia Rutkowski. Prepared by Scott Vergiels.
Photo title:
Taxa present: Tornoceras uniangulare
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Eldredgeops milleri |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 43 mm long.
Collected and prepared by Patricia Rutkowski.
Photo title: Trilobite
Taxa present: Eldredgeops milleri
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Arthroacantha carpenteri |
Arkona formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: The stem alone is 137 mm long.
Collected and prepared by Patricia Rutkowski. This incredible specimen is on a chunk of Arkona Shale that is over 15 inches long. Pat spent countless hours preparing this classic crinoid.
Photo title: Crinoid
Taxa present: Arthroacantha carpenteri
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Koenenites cooperi |
Squaw Bay formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Squaw Bay formation
Submitter notes: Koenenites cooperi (the largest is 63 mm across) and Bactrite warthini (54 mm long), Squaw Bay, Alpena, Michigan (Devonian).
Collected and prepared by Patricia Rutkowski.
Photo title:
Taxa present: Koenenites cooperi
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Michelinoceras sp. |
Squaw Bay formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Squaw Bay formation
Submitter notes: 44 mm.
Collected by Patricia Rutkowski.
Photo title:
Taxa present: Michelinoceras sp.
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Arthroacantha carpenteri |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: The plate is 187 mm across.
Collected and prepared by Patricia Rutkowski.
Photo title: Crinoid
Taxa present: Arthroacantha carpenteri
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Euryocrinus laddii |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 17 mm.
Collected and prepared by Patricia Rutkowski.
Photo title: Crinoid
Taxa present: Euryocrinus laddii
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Corocrinus nodosus |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 18 mm.
Collected and prepared by Patricia Rutkowski.
Photo title: Crinoid
Taxa present: Corocrinus nodosus
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Eutaxocrinus wideneri |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 26 mm.
Collected by Patricia Rutkowski and prepared by Patricia Rutkowski & Joe Koniecki.
Photo title: Crinoid
Taxa present: Eutaxocrinus wideneri
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Eldredgeops crassituberculata |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: The largest one is 29 mm across the genal spines.
Collected and lightly prepared by Patricia Rutkowski.
Photo title: Trilobite
Taxa present: Eldredgeops crassituberculata
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Eldredgeops crassituberculata |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Antwerp, Paulding, OH
Strat unit: Silica formation
Submitter notes: 46 mm
Photo title: Trilobite
Taxa present: Eldredgeops crassituberculata
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Platyceras rarispinum |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: 41 mm across.
This snail would have been covered in long spines in life. Only the base of the spines are preserved in this specimen. Occasionally the spines are preserved and revealed with very careful preparation.
Photo title:
Taxa present: Platyceras rarispinum
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Tentaculites bellulus |
Arkona formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: 70 mm across
Photo title:
Taxa present: Tentaculites bellulus
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Lingula sp. |
Antrim formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Antrim formation
Submitter notes: 10 mm long
Photo title:
Taxa present: Lingula sp.
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Paneka sp. |
Squaw Bay formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Squaw Bay formation
Submitter notes: 56 mm.
This bivalve (clam!) was collected by Patricia Rutkowski.
Photo title:
Taxa present: Paneka sp.
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Bactrite warthini |
Squaw Bay formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Alpena, Alpena, MI
Strat unit: Squaw Bay formation
Submitter notes: 44 mm.
Collected and prepared by Patricia Rutkowski.
Photo title:
Taxa present: Bactrite warthini
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Eldredgeops milleri |
Silica formation |
Michael Lask |
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Submitted on 2015-12-20 by Michael Lask
Location (approximate): Berkey, Lucas, OH
Strat unit: Silica formation
Submitter notes: 30 mm across the cephalon.
This was collected and prepared by Dan Edmondson during the Summer of 2012.
Photo title: Trilobite
Taxa present: Eldredgeops milleri
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Melocrinites sp. |
Silica formation |
Joseph Koniecki |
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Submitted on 2015-11-14 by Joseph Koniecki
Location (approximate): Paulding, Paulding, OH
Strat unit: Silica formation
Submitter notes: This calyx measure at 1.6 cm including the small portion of arms present. This is a very rare crinoid from the Silica Formation and even more so because it is from the Paulding locality.
Photo title: Crinoid calyx with a bit of arms
Taxa present: Melocrinites sp.
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Hippocardia cunea |
Detroit River formation |
Joseph Koniecki |
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Submitted on 2015-11-14 by Joseph Koniecki
Location (approximate): Carleton, Monroe, MI
Strat unit: Detroit River formation
Submitter notes: This specimen is 2.7 cm. It came from an old collection. The collectors found it at the Thompson-McCully quarry. Obviously, once upon a time it was possible to collect there. The name is as given by the collector. I would not know the difference between any of the genera.
Photo title: Rostroconch
Taxa present: Hippocardia cunea
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