Submitted on 2009-04-12 by Travis Vivian

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Placoderm (armored fish) median dorsal plate measuring 49.5mm long by 31.6mm at the widest point.

Photo title: Arthrodire Fish Plate

Taxa present: Protitanichthys rockportensis

View full record

Submitted on 2009-04-12 by Travis Vivian

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Placoderm (armored fish) jaw plate measuring 83.9mm long by 25.7mm at the widest point.

Photo title: Arthrodire Jaw

Taxa present: Protitanichthys rockportensis

View full record

Submitted on 2009-04-12 by Travis Vivian

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Placoderm (armored fish) jaw plate measuring 148.6mm long by 36.0mm at the widest point.

Photo title: Arthrodire Jaw

Taxa present: Protitanichthys rockportensis

View full record

Submitted on 2009-04-12 by John Benson

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Surface collected between the clay pit and river at Hungry Hollow. It measures 31mm long.

Photo title: Trilobite

Taxa present: Monodechenella macrocarpa

View full record

Submitted on 2009-04-12 by John Benson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: Two fine specimens on a large Strophomenid brachiopod. Surface collected from the spoil piles at Milan. Note coin for size.

Photo title: Inarticulate Brachiopods

Taxa present: Petrocrania hamiltonae

View full record

Submitted on 2009-04-12 by John Benson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: Three specimens surface collected from the spoil piles at Milan. The largest is 10mm wide.

Photo title: Brachiopods

Taxa present: Cyrtina sp.

View full record

Submitted on 2009-04-12 by John Benson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: Two specimens in matrix surface collected at the spoil piles at Milan.

Photo title: Tentaculites

Taxa present: Tentaculites sp.

View full record

Submitted on 2009-04-12 by Julie Brown

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Side view of both valves of a typical specimen. Note the fine narrow ribs.

Photo title: Brachiopod

Taxa present: Mediospirifer audaculus

View full record

Submitted on 2009-04-12 by Julie Brown

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Brachial view of typical specimen. Note the fine narrow ribs.

Photo title: Brachiopod

Taxa present: Mediospirifer audaculus

View full record

Submitted on 2009-04-12 by Joseph Kchodl

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A nice specimen measuring 64.4mm high and 64.4mm wide. Collected from spoil piles at the Lafarge North America Alpena Quarry.

Photo title: Coral

Taxa present: Favosites norwoodensis

View full record

Submitted on 2009-04-12 by Joseph Kchodl

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: Pedicle view of a fine specimen measuring 52.4mm long and 15.0mm wide.

Photo title: Brachiopod

Taxa present: Mucrospirifer latus

View full record

Submitted on 2009-04-12 by Joseph Kchodl

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: Brachial view of a fine specimen measuring 52.4mm long and 15.0mm wide.

Photo title: Brachiopod

Taxa present: Mucrospirifer latus

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: A fine 41.5mm prone specimen on matrix.

Photo title: Trilobite

Taxa present: Eldredgeops milleri

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A side view of the broken specimen showing an internal crystal structure of mineral replacement.

Photo title: Crinoid Calyx

Taxa present: Dolatocrinus sp.

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A broken specimen showing an internal crystal structure of mineral replacement.

Photo title: Crinoid Calyx

Taxa present: Dolatocrinus sp.

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: A small 6mm specimen on matrix.

Photo title: Blastoid

Taxa present: Heteroschisma sp.

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare specimen measuring 9mm in height.

Photo title: Blastoid

Taxa present: Devonoblastus whiteavesi

View full record

Submitted on 2009-04-12 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: A 9mm high specimen.

Photo title: Blastoid

Taxa present: Heteroschisma alatum

View full record

Submitted on 2009-04-12 by Joseph Kchodl

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: Two rare specimens from the spoil piles of the Lafarge quarry in Alpena. The larger holdfast measures 52.6mm high and 30mm at the widest point. The smaller is 37mm X 25.3mm.

Photo title: Crinoid Holdfast

Taxa present: Ancyrocrinus bulbosus

View full record

Submitted on 2009-04-12 by Joseph Kchodl

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: Side view of a nice specimen with encrusting bryozoa. This specimen measures 32mm X 19mm. From the spoil piles of the Lafarge Quarry in Alpena.

Photo title: Brachiopod

Taxa present: Sieberella romingeri

View full record