Currently showing records 141 - 160 of 176 total

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Gennaeocrinus mourantae Arkona formation John Topor

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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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