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Nucula lirata |
Arkona formation |
John Topor |
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Submitted on 2008-03-02 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Two views of a pyritized clam from the Arkona Formation’s pyrite zone. They are approximately 13mm long and 9mm wide.
Photo title: Pelecypod
Taxa present: Nucula lirata
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Leptotrypella quadrangularis |
Arkona formation |
John Topor |
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Submitted on 2008-03-02 by John Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Finding whole colonies of this bryozoan is a rare occurrence in the Arkona Formation. This branching specimen required some reassembly after cleaning. The colony measures 73mm tall by 57mm wide.
Photo title: Bryozoan
Taxa present: Leptotrypella quadrangularis
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Reptaria stolonifera, Dolorthoceras exile |
Arkona formation |
John Topor |
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Submitted on 2008-03-02 by John Topor
Location (approximate): Thedford, Lambton, ON
Strat unit: Arkona formation
Submitter notes: The Reptaria encrusted this cephalopod after it had died. The cephalopod is 47mm in length and is 23mm in diameter at it’s widest.
Photo title: Bryozoan encrusting a Cephalopod
Taxa present: Reptaria stolonifera, Dolorthoceras exile
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Reptaria stolonifera |
Arkona formation |
John Topor |
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Submitted on 2008-03-02 by John Topor
Location (approximate): Thedford, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A close-up view of The Bryozoan Reptaria.
Photo title: Encrusting Bryozoan
Taxa present: Reptaria stolonifera
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Hyperoblastus decipiens |
Arkona formation |
Mike Topor |
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Submitted on 2008-03-02 by Mike Topor
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: These three, very large for the species, inflated blastoids from the shale are very high quality specimens. Most are found crushed. H. decipiens are often found retaining some of their delicate brachioles. The top row specimen measures 21mm high and 16mm in diameter. The bottom row left is 21.5mm high and 14.5mm in diameter and bottom right is 20mm high and 14.5mm in diameter.
Photo title: Blastoid
Taxa present: Hyperoblastus decipiens
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Tornoceras (T.) mesopleuron |
Arkona formation |
Stan Hyne |
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Submitted on 2008-03-12 by Stan Hyne
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: A pyritized partial specimen measuring 45mm x 17mm.
Photo title: Ammonite
Taxa present: Tornoceras (T.) mesopleuron
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Tornoceras arkonense |
Arkona formation |
Stan Hyne |
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Submitted on 2008-03-12 by Stan Hyne
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Five small ammonites and a tiny gastropod from 11mm to 13mm in diameter.
Photo title: Ammonites and Gastropod
Taxa present: Tornoceras arkonense
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Atractocrinus concinnus |
Arkona formation |
Stan Hyne |
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Submitted on 2008-03-13 by Stan Hyne
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This calyx measures 23mm high and 15mm at the widest.
Photo title: Crinoid Calyx
Taxa present: Atractocrinus concinnus
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Arthroacantha carpenteri, Platyceras arkonense |
Arkona formation |
Kara Tecco |
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Submitted on 2008-03-15 by Kara Tecco
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This snail was found with the crinoid calyx.
Photo title: Crinoid -Gastropod Association
Taxa present: Arthroacantha carpenteri, Platyceras arkonense
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Hederella thedfordensis, Mucrospirifer arkonensis |
Arkona formation |
Kara Tecco |
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Submitted on 2008-03-15 by Kara Tecco
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This bryozoan completely encrusts a broken brachiopod.
Photo title: Bryozoan Encrusting a Brachiopod
Taxa present: Hederella thedfordensis, Mucrospirifer arkonensis
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Leiopteria ausablensis
Type Specimen |
Arkona formation |
ummp invertebrate paleontology |
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Submitted on 2008-03-15 by ummp invertebrate paleontology
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is the holotype for the species. It is 2.5cm tall.
Photo title: Pelecypod
Taxa present: Leiopteria ausablensis
UMMP specimen number: holotype 38114
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Leiopteria ausablensis
Type Specimen |
Arkona formation |
ummp invertebrate paleontology |
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Submitted on 2008-03-15 by ummp invertebrate paleontology
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is a paratype and is 3 cm tall.
Photo title: Pelecypod
Taxa present: Leiopteria ausablensis
UMMP specimen number: paratype 38115
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Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This crinoid is perserved in the starburst position. The crinoid is 12 cm in diameter.
Photo title: Crinoid crown
Taxa present: Arthroacantha carpenteri
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Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Nice crinoid that is 10 cm from tip of arms to stem.
Photo title: Crinoid
Taxa present: Arthroacantha carpenteri
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Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Another nice crinoid specimen but this one shows a lot of cirri coming off the stem. The crinoid is 9 cm top to bottom.
Photo title: Crinoid
Taxa present: Arthroacantha carpenteri
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Spiniplatyceras arkonense, Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This plate has a partial crinoid crown with several gastropods lying around. The plate is 17 cm across.
Photo title: Crinoid with gastropods
Taxa present: Spiniplatyceras arkonense, Arthroacantha carpenteri
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Arthroacantha carpenteri, Eugasterella thorni |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This is a very nice crinoid crown that also has a brittle star lying on the arms. The crinoid is about 5 cm across the arms.
Photo title: Crinoid with starfish
Taxa present: Arthroacantha carpenteri, Eugasterella thorni
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Tornoceras mesopleuron |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Thedford, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is from the Arkona Fm. and is not pyritized. This specimen is 2.5 cm across.
Photo title: Ammonite
Taxa present: Tornoceras mesopleuron
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Leptotrypella quadrangularis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This specimen is 5 cm across.
Photo title: Bryozoan
Taxa present: Leptotrypella quadrangularis
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Decorocrinus arkonensis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-03-22 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Two specimens of the same species with one perserved in the normal position and one in the starburst position. The slab is 18 cm tall.
Photo title: Crinoids
Taxa present: Decorocrinus arkonensis
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