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Sieberella romingeri |
Genshaw formation |
David Thompson |
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Submitted on 2008-02-17 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Genshaw formation
Submitter notes: Second view of the top of this brachiopod.
Photo title: Sieberella romingeri, brachiopod
Taxa present: Sieberella romingeri
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Sieberella romingeri, bryozoa |
Traverse formation |
David Thompson |
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Submitted on 2008-02-17 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Traverse formation
Submitter notes: This is one of three views of this brachiopod from the Genshaw formation in the Lafarge Quarry of Alpena. This 'old' brachiopod is encrusted with bryozoan and some few Aulopora. Anything that was hard and still for very long had something
living on it. I have collected very few of these brachiopods that were not damaged or missing valves.
Photo title: Sieberella romingeri, brachiopod
Taxa present: Sieberella romingeri, bryozoa
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Corocrinus calypso |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes:
Photo title: Complete crown in a starburst position
Taxa present: Corocrinus calypso
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Corocrinus calypso |
Arkona formation |
David Thompson |
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Submitted on 2008-02-17 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This is another example of this small ornate crinoid from the Arkona that Mike Topor has other examples of on this site and gives a slightly different view of the cup and arms attachment. The edge of a US 10 cent piece is for scale with this tiny crinoid.
Photo title: Corocrinus calypso, crinoid crown
Taxa present: Corocrinus calypso
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Megistocrinus concavus |
Thunder Bay formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Thunder Bay formation
Submitter notes:
Photo title: Crinoid calyx
Taxa present: Megistocrinus concavus
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Heliophyllum halli |
Silica formation |
David Thompson |
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Submitted on 2008-02-17 by David Thompson
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: This is a small Helliophyllum with several smaller coralites growing from the edge after the main coral had been buried(?). Life is tenacious even for tiny organisms and they struggle to survive even if shortly they were all buried for the ages.
Photo title: Heliophyllum halli, coral with regeneration
Taxa present: Heliophyllum halli
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Platyceras sp. |
Thunder Bay formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Thunder Bay formation
Submitter notes: It is interesting to note that Platyceras in not listed in either the checklist for the Traverse Group or Alpena book (Ehlers and Kesling 1970). Its occurrence should not be a surprise.
Photo title: Gastropod
Taxa present: Platyceras sp.
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Platyceras conicum |
Thunder Bay formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Thunder Bay formation
Submitter notes: It is interesting to note that Platyceras in not listed in either the checklist for the Traverse Group or Alpena book (Ehlers and Kesling 1970). Its occurrence should not be a surprise.
Photo title: Gastropod with brachiopod
Taxa present: Platyceras conicum
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Poteriocrinus arkonensis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes:
Photo title: Crinoid calyx with anal tube
Taxa present: Poteriocrinus arkonensis
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Poteriocrinus arkonensis |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes:
Photo title: Crinoid
Taxa present: Poteriocrinus arkonensis
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Tentaculites sp. |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Specimen is about 3 cm long.
Photo title: Tentaculid
Taxa present: Tentaculites sp.
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Lingula thedfordensis |
Hungry Hollow formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: The color on the specimen is real. There is no color added. Brachiopod is about 0.5 cm tall.
Photo title: Inarticulate brachiopod
Taxa present: Lingula thedfordensis
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Repteria stolonifera |
Silica formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: The bryozoan is encrusting a cephalopod. The specimen is 8 cm across.
Photo title: Bryozoan
Taxa present: Repteria stolonifera
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Logocrinus brandoni |
Silica formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This crinoid is on the same plate as the group of Arthroacantha and the bryozoan Sulcoretepora.
Photo title: Crinoid
Taxa present: Logocrinus brandoni
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Sulcoretepora sp. |
Silica formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This is a close up view of the bryozoan on the Arthroacantha plate.
Photo title: Bryozoan
Taxa present: Sulcoretepora sp.
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Arthroacantha carpenteri |
Silica formation |
Joseph Koniecki |
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Submitted on 2008-02-17 by Joseph Koniecki
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: Photo is 22 cm across.
Photo title: Group of Arthroacantha crinoids.
Taxa present: Arthroacantha carpenteri
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Megastrophia concava |
Hungry Hollow formation |
Joseph Koniecki |
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Submitted on 2008-02-16 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes:
Photo title: Brachiopod
Taxa present: Megastrophia concava
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Naticonema lineata |
Hungry Hollow formation |
Joseph Koniecki |
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Submitted on 2008-02-16 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes:
Photo title: Gastropod
Taxa present: Naticonema lineata
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Arthroacantha carpenteri |
Arkona formation |
Joseph Koniecki |
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Submitted on 2008-02-15 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Note the gastropod with spines sitting on top of the calyx. This association is not unusual but to be able to see the spines on the gastropod is uncommon.
Photo title: Crinoid with gastropod
Taxa present: Arthroacantha carpenteri
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Proctothylacocrinus longus |
Silica formation |
Joseph Koniecki |
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Submitted on 2008-02-15 by Joseph Koniecki
Location (approximate): Paulding, Paulding, OH
Strat unit: Silica formation
Submitter notes: Crinods from the Silica Shale at Paulding are extremely rare. Very few have been found.
Photo title:
Taxa present: Proctothylacocrinus longus
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