Submitted on 2011-04-18 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: This specimen is 8 cm across.

Photo title: Bryozoan Colony

Taxa present: Sulcoretepora sp.

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Submitted on 2011-04-24 by Shanan Peters

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen was collected by Ken Karns, back in the hey-day of Sylvania.

Photo title: Eldredgeops milleri double

Taxa present: Eldredgeops milleri

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: The Pseudoatrypa does not attract much epifauna but this one has the coral Aulopora microbuccinata spreading across it

Photo title: An old Brachiopod with epifauna

Taxa present: Pseudoatrypa devoniana, Aulopora microbuccinata

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: This brachiopod is 3.65 cm long by 2.9 cm wide

Photo title: Another view of old brachiopod

Taxa present: Pseudoatrypa devoniana, Aulopora microbuccinata

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This large Brachiopod is almost covered on top by an encrusting bryozoan. The Bryozoan has a very typical pattern of small raised monticules that identify it.

Photo title: Silica Brachiopod with epifauna

Taxa present: Paraspirifer bownockeri, Atactotoechus typicus

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This view shows the edge of the encrusting bryozoan on the top of the Brachiopod. The Brachiopod is 4.4 cm long by 5.8 cm wide.

Photo title: Second view of Brachiopod with Bryozoan

Taxa present: Paraspirifer bownockeri, Atactotoechus typicus

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This large brachiopod was infested by the worm, Cornulites, at an early stage. It also shows the tiny holes of the boring sponge, Clionoides, along what was once the lip of the Brachiopod. What is unusual here is that the worm died before the Brachiopod as the tube is truncated and the brachiopod continues to grow with a healing scar. The Brachiopod is 4.1 cm high by 5.9 cm wide.

Photo title: Brachiopod with healing worm scars

Taxa present: Paraspirifer bownockeri, Cornulites

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: Here are two examples of Atactotoechus typicus Bryozoan on a horn coral and on the Brachiopod, Megastrophia. The small raised regular monticules are visible on these examples. The Horn Coral is from the Silica formation in Paulding, Ohio and the Megastrophia is from the Silica of Milan, Michigan.

Photo title: Encrusting Bryozoan on varied taxon

Taxa present: Atactotoechus typicus, Heliophyllum halli, Megastrophia concava

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Submitted on 2011-08-14 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is another tiny pyritized crinoid from the Silica shale showing 11. mm of stem into cup that is 10.7 mm wide. The protective spines of this species did not protect it from the gastropod (possibly bucculentum sp.) from getting onto the tegmen.

Photo title: Crown of Gilbertsocrinus ohioensis with gastropod

Taxa present: Gilbertsocrinus ohioensis, Platyceras bucculentum

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Submitted on 2011-08-14 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This photo shows the complete piece with a US ten cent piece for scale.

Photo title: Second view of Gilbertsocrinus

Taxa present: Gilbertsocrinus ohioensis, Platyceras bucculentum

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is the tiniest complete Eldredgeops (Phacops) trilobite I have seen or found. The eyes are so tiny I can not determine the species although it did come from Sylvania, Ohio. It is complete but only a few millimeters long as seen by the comparison with the U.S. Ten cent piece next to it. Far rarer then the larger trilobites this site is famous for.

Photo title: A very tiny Eldredgeops (Phacops) trilobite

Taxa present: Eldredgeops

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Again shown with a dime for scale. This is the negative to the positive of the little trilobite shown in previous photo.

Photo title: The negative counterpart for the tiny Eldredgeops in the previous photo

Taxa present: Eldredgeops

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This species of Brachiopod, Leiorhynchus kelloggi, from the silica shale often has significant amounts of the original nacre or Mother of Pearl still visible and sparkling after 375 Million years. This example from Milan, Michigan has a large amount of the original shell still shining after all these millions of years!

Photo title: A Silica Brachiopod with iridescent nacre.

Taxa present: Leiorhynchus kelloggi

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This shows the brachiopod with a U.S. ten cent piece for scale.

Photo title: Another view of same brachiopod

Taxa present: Leiorhynchus kelloggi

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Submitted on 2011-12-27 by David Clark

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: 2 mm crinoid calyx, possibly Arthroacantha carpenteri. Photo via SEM

Photo title: Juvenile crinoid calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 4 cm at its widest.

Photo title: Crinoid calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of the cup and tegmen of the same specimen. The calyx is 4 cm across

Photo title: Crinoid calyx

Taxa present: Arthroacantha carpenteri

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The picture is a view of both sides of the same specimen. There is an inarticulate brachiopod attached to the back side of the gastropod. The gastropod is 5 cm across.

Photo title: Gastropod with Brachiopod

Taxa present: Platyceras carinatum, Petrocrania hamiltoniae

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Three views of the same specimen. The brachiopod is 5.5 cm across. There is an inarticulate brachiopod attached to the Paraspirifer.

Photo title: Brachiopod

Taxa present: Paraspirifer bownockeri, Petrocrania hamiltoniae

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Submitted on 2012-01-11 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The trilobites measure 1.8 cm each.

Photo title: Trilobites

Taxa present: Phacops rana milleri

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