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Elytha fimbriata |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: The lower most specimen is 1.2 cm across. It is the same specimen as pictured in the single specimen entry.
Photo title: Brachiopods
Taxa present: Elytha fimbriata
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Elytha fimbriata |
Widder formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Arkona, Lambton, ON
Strat unit: Widder formation
Submitter notes: This specimen is 2.1 cm across
Photo title: Brachiopod
Taxa present: Elytha fimbriata
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Elytha fimbriata |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 1.2 cm across.
Photo title: Bachiopod
Taxa present: Elytha fimbriata
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Elytha fimbriata |
Widder formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Thedford, Lambton, ON
Strat unit: Widder formation
Submitter notes: This specimen is 2 cm across.
Photo title: Bachiopod
Taxa present: Elytha fimbriata
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Elytha sp. |
Traverse formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Ann Arbor, Washtenaw, MI
Strat unit: Traverse formation
Submitter notes: This specimen is 4 cm across including the matrix. It was found in glacial drift. It is labeled as Onondaga Limestone, however that name does not appear as a choice for the Michigan Basin.
Photo title: Bachiopod
Taxa present: Elytha sp.
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Douvillina distans |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 2.5 cm across including the matrix.
Photo title: Bachiopod
Taxa present: Douvillina distans
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Delthyris sp. |
Hungry Hollow formation |
ummp invertebrate paleontology |
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Submitted on 2013-01-24 by ummp invertebrate paleontology
Location (approximate): Thedford, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: This specimen is 2.1 cm across.
Photo title: Bachiopod
Taxa present: Delthyris sp.
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Deltacrinus sp. |
Hungry Hollow formation |
David Thompson |
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Submitted on 2013-02-07 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: This is a rare example of this crinoid, Deltacrinus from the Hungry Hollow Formation in Ontario, Canada. I had the help of our resident experts in the Arkona fossil formations; John and Mike Topor in identifying this genus, but we are not sure of the species so its a (?). The height with the arms is .9' or 2.29 cm. The width is .75' or 1.9 cm. The stem attached is about .69' or 1.1 cm.
Photo title: unusual crinoid caylx from Arkona
Taxa present: Deltacrinus sp.
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Deltacrinus sp. |
Hungry Hollow formation |
David Thompson |
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Submitted on 2013-02-07 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: The caylx from reverse.
Photo title: Opposite side of Deltacrinus
Taxa present: Deltacrinus sp.
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Cadiscocrinus southworthi |
Arkona formation |
David Thompson |
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Submitted on 2013-02-07 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This Cadiscocrinus crown with arms is quite unusual in that several of the arms were broken (or eaten?) The arm tips on the left of this photo show three light pink arm tips that have been regrown by the crinoid prior to its final burial. This comes from the Arkona Formation of the Arkona area. Again our experts, John and Mike Topor clarified the identification of this crinoid as southworthi. The fossil is on loan to the Museum of Paleontology for research.
Photo title: Another rare Devonian crinoid crown with arm regeneration
Taxa present: Cadiscocrinus southworthi
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Cadiscocrinus southworthi |
Arkona formation |
David Thompson |
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Submitted on 2013-02-07 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This shows the crown and arms for identification. There is a slight view of a regenerating arm on the extreme right but it's hard to notice. The base of the crown is visible. Total height of matrix is 1.85' or 4.7 cm, the arms are 1.4' or 3.7 cm, the width of the caylx is .5' or 1.2 cm. The width of the arms and matrix is 1.1' or 2.8 cm at their widest. This crinoid is named after the famous Thedford, Ontario collector; Charles Southworth.
Photo title: Reverse of previous crown of Cadiscocrinus
Taxa present: Cadiscocrinus southworthi
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Cadiscocrinus southworthi |
Arkona formation |
David Thompson |
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Submitted on 2013-03-04 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Cadiscocrinus southworti from the Arkona formation of Ontario, Canada. This is smaller then the example just given and is .49' or 1.2 cm wide and .97' or 2.4 cm tall including arms. Roughly 1/2 inch by 1 inch.
Photo title: Another example of rare Arkona Crinoid; Cadiscocrinus southworthi
Taxa present: Cadiscocrinus southworthi
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Cadiscocrinus southworthi |
Arkona formation |
David Thompson |
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Submitted on 2013-03-04 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This is the less well preserved reverse side of the previous crinoid
Photo title: Reverse side of Cadiscocrinus just shown.
Taxa present: Cadiscocrinus southworthi
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Pseudodechenella lucasensis |
Silica formation |
David Thompson |
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Submitted on 2013-06-09 by David Thompson
Location (approximate): Paulding, Paulding, OH
Strat unit: Silica formation
Submitter notes: Pseudodechenella lucasensis from the Silica shale of LaFarge Quarry at Paulding, Ohio. The trilobite is 2.8 cm or 1.1' long by 2.1 cm or .8 ' wide at the genal spines.
The matrix is 10.8 cm or 4.3' long by 5.6 cm or 2.2' wide.
Photo title: Dechenella Trilobite
Taxa present: Pseudodechenella lucasensis
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Pseudodechenella lucasensis |
Silica formation |
David Thompson |
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Submitted on 2013-06-09 by David Thompson
Location (approximate): Paulding, Paulding, OH
Strat unit: Silica formation
Submitter notes:
Photo title: Head of Dechenella in previous photo
Taxa present: Pseudodechenella lucasensis
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Megistocrinus rugosus |
Hungry Hollow formation |
Joseph Koniecki |
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Submitted on 2013-07-23 by Joseph Koniecki
Location (approximate): Arkona, Lambton, ON
Strat unit: Hungry Hollow formation
Submitter notes: Crinoids in general are very rare in the Hungry Hollow member of the Widder formation. This is a rare example of an intact crinoid calyx. It measures 4 cm in diameter.
Photo title: Crinoid Calyx
Taxa present: Megistocrinus rugosus
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Heteroschisma alatus |
Potter Farm formation |
Joseph Koniecki |
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Submitted on 2013-07-23 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Potter Farm formation
Submitter notes: This blastoid is 1.3 cm tall. The side and top view are of the same specimen.
Photo title: Blastoid
Taxa present: Heteroschisma alatus
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Gennaeocrinus mourantae |
Arkona formation |
David Thompson |
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Submitted on 2013-08-19 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This shows the detail of pinnules on the feeding arms. There are several blobs of pyrite on the arms also.
Photo title: Rare Crinoid Calyx
Taxa present: Gennaeocrinus mourantae
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Gennaeocrinus mourantae |
Arkona formation |
David Thompson |
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Submitted on 2013-08-19 by David Thompson
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: This is another view of this rare crinoid that shows a small gastropod to the extreme right that is NOT attached to this crinoid but associated with it.
Photo title: Second view of crinoid
Taxa present: Gennaeocrinus mourantae
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Atractocrinus concinnus |
Arkona formation |
Darrell Ellis |
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Submitted on 2013-09-10 by Darrell Ellis
Location (approximate): Arkona, Lambton, ON
Strat unit: Arkona formation
Submitter notes: Collected from the upper Arkona Formation; I am told this is the most complete Atractocrinus concinnus found to date.
Photo title: Atractocrinus concinnus (Photo 1/2)
Taxa present: Atractocrinus concinnus
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