Submitted on 2008-11-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This piece contains three crinoid crowns and a very large conularid.

Photo title: Crinoid crowns with a Conularid

Taxa present: Arthroacantha carpenteri, Conularia sp.

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Submitted on 2008-11-24 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A partial crown measuring 60mm long(stem not included).

Photo title: Crinoid Crown

Taxa present: Poteriocrinus arkonensis

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Submitted on 2008-11-30 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is a paratype. It is 2 cm across.

Photo title: Starfish

Taxa present: Devonaster triradiatus

UMMP specimen number: paratype 25580

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Submitted on 2008-11-30 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is a paratype. It is 2.5 cm across.

Photo title: Starfish

Taxa present: Devonaster triradiatus

UMMP specimen number: paratype 30518

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Submitted on 2008-12-02 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: There are a lot of very nice Devonasters in this archive but none more important that this one. This is the holotype upon which the name is based. The specimen is 4 cm across.

Photo title: Starfish - View #1

Taxa present: Devonaster triradiatus

UMMP specimen number: holotype 26489

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Submitted on 2008-12-02 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: See view #1 for additional information.

Photo title: Starfish - View #2

Taxa present: Devonaster triradiatus

UMMP specimen number: holotype 26489

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Submitted on 2008-12-02 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is a holotype. It is 1.5 cm across.

Photo title: Brittle starfish

Taxa present: Drepapaster wrighti

UMMP specimen number: holotype 57497

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Submitted on 2009-02-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is 1 cm across.

Photo title: Brittle Starfish

Taxa present: Acinetaster konieckii

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Submitted on 2009-06-20 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A fairly large specimen (160+ mm) of uncommon Devonian wood found at Arkona.

Photo title: Devonian wood

Taxa present: Unknown

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Submitted on 2009-08-25 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is 3 cm across.

Photo title: Gastropod

Taxa present: Spiniplatyceras arkonense

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Submitted on 2009-08-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The slab is about 10 cm across. The Arthroacantha crinoid has regenerating arms.

Photo title: Starfish and Crinoid

Taxa present: Arthroacantha carpenteri, Devonaster triradiatus

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Submitted on 2009-08-28 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This crinoid is 9 cm tall.

Photo title: Crinoid

Taxa present: Poteriocrinus arkonensis

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Submitted on 2009-08-28 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This crinoid is 7.5 cm from tip of arm to the base of stem.

Photo title: Crinoid

Taxa present: Poteriocrinus arkonensis

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Submitted on 2009-08-28 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This crinoid is 4.5 cm tall including arms and stem.

Photo title: Crinoid

Taxa present: Corocrinus calypso

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Submitted on 2009-10-13 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The largest specimen is 4.5 cm across.

Photo title: Crinoid Holdfast

Taxa present: Ancyrocrinus bulbosus

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Submitted on 2009-11-09 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The larger specimen is 1.5 cm across.

Photo title: Crinoid holdfast

Taxa present: Ancyrocrinus bulbosus

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Submitted on 2009-11-09 by ummp invertebrate paleontology

Location (approximate): Thedford, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The largest specimen is 2.3 cm across.

Photo title: Crinoid holdfast

Taxa present: Ancyrocrinus bulbosus

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Submitted on 2009-11-09 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The specimens are 1 cm tall.

Photo title: Crinoids

Taxa present: Corocrinus calypso, Platyceras sp.

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Submitted on 2009-11-19 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A common pyritized ammonite from the Arkona Formation. It measures 7.5mm in diameter.

Photo title: Ammonite

Taxa present: Tornoceras (T.) arkonensis

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Submitted on 2010-04-10 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: An unusual crinoid calyx

Photo title: CRINOID CALYX

Taxa present: Atractocrinus concinnus

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