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Gennaeocrinus mourantae |
Arkona formation |
John Topor |
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Submitted on 2010-11-04 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This incomplete specimen shows the exposed tegmen along with it's spines. This crown measures 26mm tall and is 33mm at the widest part of it's arms.
Photo title: CRINOID CROWN
Taxa present: Gennaeocrinus mourantae
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Devonaster triradiatus |
Arkona formation |
John Topor |
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Submitted on 2010-11-04 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A complete specimen that has it's arms tightly clenched. The specimen is approximately 33mm in diameter.
Photo title: STARFISH
Taxa present: Devonaster triradiatus
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Devonaster triradiatus |
Arkona formation |
John Topor |
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Submitted on 2010-11-04 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Another view of a complete specimen that has it's arms tightly clenched. The specimen is approximately 33mm in diameter.
Photo title: STARFISH
Taxa present: Devonaster triradiatus
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Devonaster triradiatus, Tentaculites attenuatus |
Arkona formation |
John Topor |
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Submitted on 2010-11-04 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A beautiful specimen measuring 35mm in diameter on a slab that is 76mm X 45mm. With Tentaculites strewn across the matrix
Photo title: STARFISH
Taxa present: Devonaster triradiatus, Tentaculites attenuatus
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Devonaster triradiatus |
Arkona formation |
John Topor |
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Submitted on 2010-11-04 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A beautiful specimen measuring 47mm in diameter on a slab that is 87mm X 105mm.
Photo title: STARFISH
Taxa present: Devonaster triradiatus
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Melocrinus |
Arkona formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes:
Photo title: CRINOID CALYX
Taxa present: Melocrinus
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Krama devonicum |
Arkona formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: 23.5mm and 14.5mm specimens with 8 to 10 juveniles surrounding them on 2 inch x 3 inch matrix found along AuSable River.
Photo title: EDRIOASTEROID group
Taxa present: Krama devonicum
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Krama devonicum |
Arkona formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Close-up of largest specimen 15/16 inches(24mm) in a group consisting of 2 adult specimens and as many as 8 more tiny juveniles on 2 inch x 3 inch matrix.
Photo title: EDRIOASTEROID
Taxa present: Krama devonicum
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Eugasterella thorni |
Arkona formation |
Mike Palescuk |
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Submitted on 2011-01-15 by Mike Palescuk
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Eugasterella thorni, a pyritized brittlestar confirmed ID by Dr. Hotchkiss. About the size of a penny.
Photo title: BRITTLESTAR
Taxa present: Eugasterella thorni
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Gennaeocrinus mourantae |
Arkona formation |
Mike Palescuk |
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Submitted on 2011-01-15 by Mike Palescuk
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Crinoid crown from the banks of the AuSable River. Measures over 1-1/2 inches wide.
Photo title: CRINOID CROWN
Taxa present: Gennaeocrinus mourantae
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Devonaster triradiatus |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-01-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This starfish is 5.2 cm across.
Photo title: Starfish
Taxa present: Devonaster triradiatus
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Devonochonetes sp. |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-01-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: The average size of the brachiopods is 1 cm across.
Photo title: Brachiopods
Taxa present: Devonochonetes sp.
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Tentaculites sp. |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-01-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: The longest specimen is 2 cm across.
Photo title: Tentaculids
Taxa present: Tentaculites sp.
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Leiopteria ausablensis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-01-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is 2.5 cm tall.
Photo title: Pelecypod
Taxa present: Leiopteria ausablensis
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Leptotrypella quadrangularis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-06-01 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is 11 cm across.
Photo title: Bryozoan Colony
Taxa present: Leptotrypella quadrangularis
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Leiopteria ausablensis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-06-01 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is 3 cm tall.
Photo title: Clam
Taxa present: Leiopteria ausablensis
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Loriolaster n. sp. |
Arkona formation |
Joseph Koniecki |
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Submitted on 2011-06-01 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This is the first and only reported occurance of the genera from the Arkona locality. The specimen was ID'ed by Dr. Fred Hotchkiss. The specimen is 2.7 cm in diameter. The missing plates of the star are on the negative which was collected and stored.
Photo title: Brittle Star
Taxa present: Loriolaster n. sp.
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Platyceras conicum |
Arkona formation |
David Clark |
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Submitted on 2012-05-02 by David Clark
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A snail found in a unique position on a crinoid. Most gastropods attach to the calyx, not the stem.
Photo title: Platyceras conicum gastropod on a crinoid stem
Taxa present: Platyceras conicum
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Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2012-11-28 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is 3 cm tall.
Photo title: Crinoid calyx with tegmen
Taxa present: Arthroacantha carpenteri
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Undetermined |
Arkona formation |
Joseph Koniecki |
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Submitted on 2012-12-02 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: I found this specimen a couple years back in the Arkona Formation. I have not been able to ID it. It is quite large for a pelecypod from the Arkona. This specimen is 7 cm across. Most Arkona formation pelecypods are a cm or less. Any help in ID'ing this specimen would be appreciated.
Photo title: Pelecypod
Taxa present: Undetermined
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