Submitted on 2008-11-23 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes:

Photo title: Another view of the baby Brachiopod

Taxa present: Mucrospirifer thedfordensis

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Submitted on 2008-11-23 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Attached to the slightly larger Brachiopod is a very tiny passenger that is complete in every way. This illustrates Jonathon Swift's famous quote; 'A flea hath smaller that on him prey, and these have smaller still to bite 'em; and so proceed ad infinitum.' This is not a prey situation but rather if it is hard and sits still; grow on it! The baby brachiopod is 5.6 mm long to the host's 20. mm.

Photo title: A tiny hitchhiker!

Taxa present: Mucrospirifer thedfordensis

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Submitted on 2008-11-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A spectacular plate with two complete crinoid crowns. In additon, there is another Arthroacantha and a Poteriocrinus on the bottom half of this plate (see next photo). There are also several Arthroacantha crowns on the back of this plate. It is 9 inches across the two crowns.

Photo title: Crinoid crowns

Taxa present: Arthroacantha carpenteri

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Submitted on 2008-11-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This is the bottom half of the plate with the two Arthrocantha crowns. On the bottom half are two additional crinoids.

Photo title: Crinoid crowns

Taxa present: Arthroacantha carpenteri, Poteriocrinus arkonensis

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Submitted on 2008-11-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Another spectacular individual crinoid crown. This crown is 4.5 inches tall.

Photo title: Crinoid crown

Taxa present: Arthroacantha carpenteri

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Submitted on 2008-11-07 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This piece contains three crinoid crowns and a very large conularid.

Photo title: Crinoid crowns with a Conularid

Taxa present: Arthroacantha carpenteri, Conularia sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Material of this sort(thin film) is difficult to collect in the soft shales. I believe this is a lateral plate of the creature's carapace. It measures 102mm long X 44mm wide

Photo title: Phyllocarid

Taxa present: Rhinocaris sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Bottom View: An extremely rare find in the H.H. member This is the only specimen we have seen. Collected by Richard Barnard. Dime for size.

Photo title: Colony Coral

Taxa present: Pleurodictyum insigne

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: An extremely rare find in the H.H. member This is the only specimen we have seen. Collected by Richard Barnard. Dime for size.

Photo title: Colony Coral

Taxa present: Pleurodictyum insigne

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This branching tetracoral is very common in the H.H. member but is usually found in pieces. It was reconstructed. A specimen of Thamnoptychis(Trachypora) branches within the Eridophyllum. The specimen measures 75mm X 76mm. The Thamnoptychis is 42mm long.

Photo title: Branching Coral

Taxa present: Eridophyllum subcaespitosum, Thamnoptychis elegantula

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: These are the only fragments of this genus from the Arkona formation that I have collected. They are very rare. The largest plate measures 27mm X 21mm.

Photo title: Armored Fish Plates

Taxa present: Holonema sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Dental elements are uncommon in the Arkona formation. This 'Ptychodont' lower jaw measures 90mm in length and 25mm at the thickest point.

Photo title: Armored Fish Dental Element

Taxa present: Protitanichthys sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Many dental elements are classified under the name 'Ptychodont'. I assume that this specimen belongs to this genus. The specimen measures 48mm X 48mm.

Photo title: Armored Fish Dental Element

Taxa present: Protitanichthys sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A typical fish plate from this formation. This one is on a concretion. Most fish material is fragmentary. This specimen measures 83mm X 62mm.

Photo title: Armored Fish Plate

Taxa present: Protitanichthys cf. rockportensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: These gastrointestinal mandibles are very rare in the Arkona formation as are any parts of this animal. It measures 16mm in length.

Photo title: Phyllocarid Mandibles

Taxa present: Echinocaris punctata

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Top view: This is a rare occurance of a brachiopod totally encrusted with a branching Bryozoan. It may well have been caused by a reworked environment. The specimen measures 52mm in length and 19mm at the widest point.

Photo title: Bryozoan Encrusted Brachiopod

Taxa present: Leptotrypella quadrangularis, Mucrospirifer arkonensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Bottom view: This is a rare occurance of a brachiopod totally encrusted with a branching Bryozoan. It may well have been caused by a reworked environment. The specimen measures 52mm in length and 19mm at the widest point.

Photo title: Bryozoan Encrusted Brachiopod

Taxa present: Leptotrypella quadrangularis, Mucrospirifer arkonensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: A rare crinoid crown from the lower Widder formation. The specimen measures 40mm high and is 16.5mm wide.

Photo title: Crinoid Crown

Taxa present: Eutaxocrinus whiteavesi

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: View 2: The only specimen of this cladid crinoid I found in the H.H. member in over thirty years of collecting. It measures 19mm high and 12.5mm wide.

Photo title: Crinoid Calyx

Taxa present: Decadocrinus multidosus

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: View 1: The only specimen of this cladid crinoid I found in the H.H. member in over thirty years of collecting. It measures 19mm high and 12.5mm wide.

Photo title: Crinoid Calyx

Taxa present: Decadocrinus multidosus

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