Currently showing records 1021 - 1040 of 1554 total

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Hyperoblastus reimanni Silica formation Mike Palescuk

Submitted on 2010-04-10 by Mike Palescuk

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A small specimen measuring just over 1/4 inch.

Photo title: Blastoid

Taxa present: Hyperoblastus reimanni

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Hederella sp., Heracloceras inelegans, Aulopora sp. Silica formation Mike Palescuk

Submitted on 2010-04-10 by Mike Palescuk

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A large ammonite (Goniatite) endocast with epifauna. This specimen measures 7.75 inches in diameter and is 3 inches thick. It has a Bryozoan, Hederella, on lower left of it's living chamber and the coral Aulopora on the septae (right side).

Photo title: Ammonite

Taxa present: Hederella sp., Heracloceras inelegans, Aulopora sp.

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Heracloceras inelegans, Aulopora sp. Silica formation Mike Palescuk

Submitted on 2010-04-10 by Mike Palescuk

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The opposite side of the large ammonite (Goniatite) endocast with encrusting coral Aulopora. This specimen measures 7.75 inches in diameter and is 3 inches thick.

Photo title: Ammonite

Taxa present: Heracloceras inelegans, Aulopora sp.

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Arthroacantha carpenteri Silica formation Mike Palescuk

Submitted on 2010-04-11 by Mike Palescuk

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A crown showing unusual preservation.

Photo title: Crinoid Crown

Taxa present: Arthroacantha carpenteri

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Aulocystis auloporoidea Silica formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: This small cluster of coralites is about 2 1/4 inches (5 cm) long and the individual tiny corals are about 2.9 mm wide.

Photo title: Aulocystis auloporoidea, coral cluster

Taxa present: Aulocystis auloporoidea

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Heteroschisma subtruncatum Thunder Bay formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: Although a rather common species from the Thunder Bay Limestone of Alpena, This blastoid has not been added to the site before. It is 5/8 inch (15.3 mm) long by 3/8 inch (8.6 mm) wide

Photo title: Heteroschisma subtruncatum from Alpena

Taxa present: Heteroschisma subtruncatum

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Heteroschisma subtruncatum Thunder Bay formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: The ambuulacral area of the previous specimen

Photo title: Second view of blastoid

Taxa present: Heteroschisma subtruncatum

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Aulophyllum alpenensis Thunder Bay formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This coral group is about 4 inches (10 cm) long by 1 3/4 inches (4.2 cm) wide. The individual coralites are about 1/4 inch (6. mm) in diameter or about the size of an eraser of a pencil. This small grouping is on a larger plate measuring some 8 inches.

Photo title: Aulophyllum alpenensis, coral cluster

Taxa present: Aulophyllum alpenensis

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Conocardium cuneus Dundee formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Dundee formation

Submitter notes: This is an unprepared example of a Rostroconch from Paulding. This was found by Alex Fabian who, knowing my interest, let me collect this specimen. Thanks, Alex.

Photo title: Rostroconch from Paulding

Taxa present: Conocardium cuneus

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Aulophyllum alpenensis Thunder Bay formation David Thompson

Submitted on 2010-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is a slightly close up view of the Aulophyllum sp. This specimen shows ammonites from the Squaw Bay formation on the reverse side.

Photo title: another view of corals

Taxa present: Aulophyllum alpenensis

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Gilbertsocrinus ohioensis Silica formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A very tiny crinoid crown. The entire specimen measures 1.4 cm tall including the stem.

Photo title: Crinoid

Taxa present: Gilbertsocrinus ohioensis

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Arthroacantha carpenteri Silica formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A very small crinoid crown. The crinoid measures 3cm from the tip of the arms to the bottom of the stem.

Photo title: Crinoid

Taxa present: Arthroacantha carpenteri

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Eospondylus sp. Silica formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: According to Dr. Fred Hotchkiss, this tiny brittle star is the first reported occurance of Eospondylus in the Silica Shale. This specimen measures 1.5 cm at its widest.

Photo title: Brittle Starfish

Taxa present: Eospondylus sp.

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Poteriocrinus arkonensis Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen measures 7 cm across the arms.

Photo title: Crinoid crown

Taxa present: Poteriocrinus arkonensis

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Poteriocrinus arkonensis Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen measures 3.8 cm from the tip of the anal tube to the calyx.

Photo title: Crinoid with anal tube

Taxa present: Poteriocrinus arkonensis

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Poteriocrinus arkonensis, Corocrinus calypso, Arthroacantha carpenteri Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: The Poteriocrinus measures 3.7 cm from the tip of the anal tube to the bottom of the stem.

Photo title: Plate of crinoids

Taxa present: Poteriocrinus arkonensis, Corocrinus calypso, Arthroacantha carpenteri

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Hyperoblastus filosa Hungry Hollow formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A gtoup of two blastoids with the one on the right measuring 1 cm.

Photo title: Blastoids

Taxa present: Hyperoblastus filosa

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Hyperoblastus decipiens Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A rare Arkona formation blastoid that measures 1.5 cm.

Photo title: Blastoid

Taxa present: Hyperoblastus decipiens

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Hyperoblastus decipiens Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: An immature specimen of this blastoid. The entire specimens measures 1.6 cm including brachioles and stem.

Photo title: Blastoid with brachioles

Taxa present: Hyperoblastus decipiens

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Corocrinus calypso Arkona formation Joseph Koniecki

Submitted on 2010-10-26 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This tiny specimen is 2 cm across.

Photo title: Crinoid crown

Taxa present: Corocrinus calypso

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