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Unknown sp. |
Traverse formation |
Travis Vivian |
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Submitted on 2009-11-21 by Travis Vivian
Location (approximate): Alpena, Alpena, MI
Strat unit: Traverse formation
Submitter notes:
Photo title: Placoderm Jaw
Taxa present: Unknown sp.
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Ptychodont |
Traverse formation |
Travis Vivian |
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Submitted on 2009-11-21 by Travis Vivian
Location (approximate): Alpena, Alpena, MI
Strat unit: Traverse formation
Submitter notes: Ptychodont is a lesser known type of Placoderm
Photo title: Fish Jaw
Taxa present: Ptychodont
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Sarcopterygian |
Traverse formation |
Travis Vivian |
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Submitted on 2009-11-21 by Travis Vivian
Location (approximate): Alpena, Alpena, MI
Strat unit: Traverse formation
Submitter notes:
Photo title: Anterior tooth whorl of an Onychodont
Taxa present: Sarcopterygian
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Platyceras sp. |
Alpena formation |
Stan Hyne |
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Submitted on 2009-11-20 by Stan Hyne
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A nice specimen measuring 25.4mm tall
Photo title: GASTROPOD
Taxa present: Platyceras sp.
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Corocrinus sp. |
Alpena formation |
Stan Hyne |
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Submitted on 2009-11-20 by Stan Hyne
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A very nice crown.
Photo title: Crinoid Crown
Taxa present: Corocrinus sp.
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Undescribed sp. |
Bell formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Bell formation
Submitter notes: An oral view of the central disk with very little of the arms. This may be a new brittlestar from the formation. The disk measures 9mm in diameter.
Photo title: UNDESCRIBED OPHIUROID
Taxa present: Undescribed sp.
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Sphenophragmus nanus |
Norway Point formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Norway Point formation
Submitter notes: A brachial valve view of a tiny 6mm specimen. This brachiopod is a fairly large adult for the species.
Photo title: Brachiopod
Taxa present: Sphenophragmus nanus
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Sphenophragmus nanus |
Norway Point formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Norway Point formation
Submitter notes: A pedicle valve view of a tiny 6mm specimen. This brachiopod is a fairly large adult for the species.
Photo title: Brachiopod
Taxa present: Sphenophragmus nanus
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Naos ponderosum |
Potter Farm formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: A new occurance for a rare coral. It measures 62mm in diameter.
Photo title: Horn Coral
Taxa present: Naos ponderosum
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Kophinocrinus magrumi |
Silica formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A rare Silica crinoid. One of the larger, more complete specimens known of this species. It measures 43mm high.
Photo title: Crinoid Crown
Taxa present: Kophinocrinus magrumi
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Undescribed sp. |
Bell formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Bell formation
Submitter notes: An aboral view of the central disk with very little of the arms. This may be a new brittlestar from the formation. The disk measures 9mm in diameter.
Photo title: UNDESCRIBED OPHIUROID
Taxa present: Undescribed sp.
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Melocrinites sp. |
Thunder Bay formation |
Scott Vergiels |
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Submitted on 2009-11-20 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Thunder Bay formation
Submitter notes: This is one of two undescribed Melocrinites species from this formation. It measures 90mm long.
Photo title: Partial Crinoid Crown
Taxa present: Melocrinites sp.
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Unknown sp. |
Genshaw formation |
David Clark |
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Submitted on 2009-11-19 by David Clark
Location (approximate): Alpena, Alpena, MI
Strat unit: Genshaw formation
Submitter notes: A rare Devonian lungfish tooth. One of three known specimens. Approximately 12mm long
Photo title: LUNGFISH TOOTH PLATE
Taxa present: Unknown sp.
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Unknown sp. |
Genshaw formation |
David Clark |
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Submitted on 2009-11-19 by David Clark
Location (approximate): Alpena, Alpena, MI
Strat unit: Genshaw formation
Submitter notes: An unidentified fish tooth measuring 12mm wide.
Photo title: FISH TOOTH
Taxa present: Unknown sp.
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Undescribed sp. |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A close-up view taken under a stereo zoom microscope of another of the individual immature specimens from the crinoid/brittlestar death plate. The average size of these babies ranges from 4.8mm to 6.4mm in diameter.
Photo title: UNDESCRIBED IMMATURE OPHIUROID
Taxa present: Undescribed sp.
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Undescribed sp. |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A close-up view taken under a stereo zoom microscope of another of the individual immature specimens from the crinoid/brittlestar death plate. The average size of these babies ranges from 4.8mm to 6.4mm in diameter.
Photo title: UNDESCRIBED IMMATURE OPHIUROID
Taxa present: Undescribed sp.
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Undescribed sp., Arthroacantha carpenteri |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A close-up view of 2 brittlestars from the crinoid/brittlestar death plate nestled together. These mature specimens measure 32mm X 25mm and 13mm X 11mm. Note the immature specimens nearby.
Photo title: UNDESCRIBED OPHIUROIDS
Taxa present: Undescribed sp., Arthroacantha carpenteri
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Undescribed sp., Arthroacantha carpenteri |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A close-up view of a partial brittlestar from the crinoid/brittlestar death slab. This mature individual measures 40mm X 31mm. Note the immature specimens nearby.
Photo title: UNDESCRIBED OPHIUROID
Taxa present: Undescribed sp., Arthroacantha carpenteri
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Undescribed sp., Arthroacantha carpenteri |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A close-up view of a partial brittlestar from previous post. This mature individual measures 20mm X 12mm. Note the immature specimens nearby.
Photo title: UNDESCRIBED OPHIUROID
Taxa present: Undescribed sp., Arthroacantha carpenteri
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Undescribed sp., Arthroacantha carpenteri |
Silica formation |
Pat Rutkowski |
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Submitted on 2009-11-19 by Pat Rutkowski
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A closer view of the amazing slab of 7 complete and partial crowns. 4 mature undescribed ophiuroids and 40+ immature brittlestars also litter the surface of this wonderful death plate. The overall size of this slab is 13.5 X 15.5 inches and 2.25 inches thick. Collected many years ago. Note the 2 mature ophiuroids just above center in the photo and 2 more nestled together in the upper left. Many immature specimens can be seen scattered about.
Photo title: CRINOIDS AND BRITTLESTARS
Taxa present: Undescribed sp., Arthroacantha carpenteri
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