Submitted on 2007-09-07 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: Fish tooth from the Genshaw formation.

Photo title: Fish tooth

Taxa present: Onychodus sp.

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Submitted on 2011-12-27 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Beautifully preserved Basidechenella with the axial spines. The Eldredgeops on the bottom right is a molt and missing it's head.

Photo title: Trilobite cluster

Taxa present: Basidechenella arkonensis, Eldredgeops

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Submitted on 2008-10-07 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: Fish tooth from the Genshaw formation. A second tooth is located on the back side of the plate

Photo title:

Taxa present: Onychodus sp.

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Submitted on 2008-10-07 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: Fish tooth from the Genshaw formation. This is the second tooth and is located on the back side of the plate

Photo title:

Taxa present: Onychodus sp.

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Submitted on 2008-10-07 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: Prepared by Scott Vergiels. Photo by Colin Sumrall. Rare late Devonian cystoid donated to UMMP. Potentially the second known specimen of this species.

Photo title:

Taxa present: Lipsanocystis oblatus

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Submitted on 2008-11-24 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A partial crown measuring 60mm long(stem not included).

Photo title: Crinoid Crown

Taxa present: Poteriocrinus arkonensis

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Submitted on 2008-11-24 by David Clark

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: A pair of trilobites on matrix. The larger specimen is 53.5mm long and the smaller is 42mm in length.

Photo title: Trilobite Double

Taxa present: Phacops (Eldredgeops) crassituberculata

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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

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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

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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.

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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.

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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.

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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

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Submitted on 2009-06-20 by David Clark

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A fairly large specimen (160+ mm) of uncommon Devonian wood found at Arkona.

Photo title: Devonian wood

Taxa present: Unknown

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Submitted on 2009-06-20 by David Clark

Location (approximate): , Lucas, OH

Strat unit: Silica formation

Submitter notes: A very small Arthroacantha crinoid in starburst position. A 10 mm logocrinus is just above it.

Photo title: Juvenile Arthroacantha and Logocrinus crinoids

Taxa present: Arthroacantha carpenteri, Logocrinus brandoni

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Submitted on 2009-11-19 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: A rare Devonian lungfish tooth. One of three known specimens. Approximately 12mm long

Photo title: LUNGFISH TOOTH PLATE

Taxa present: Unknown sp.

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Submitted on 2009-11-19 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Genshaw formation

Submitter notes: An unidentified fish tooth measuring 12mm wide.

Photo title: FISH TOOTH

Taxa present: Unknown sp.

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Submitted on 2009-11-19 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Bell formation

Submitter notes: A side view of a very ornate species measuring 7mm wide and 5.5mm tall.

Photo title: CRINOID CALYX

Taxa present: Gennaeocrinus goldringae

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Submitted on 2009-11-19 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Bell formation

Submitter notes: Opposite side view of a very ornate species measuring 7mm wide and 5.5mm tall.

Photo title: CRINOID CALYX

Taxa present: Gennaeocrinus goldringae

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Submitted on 2009-11-19 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Bell formation

Submitter notes: A tegmen view of a very ornate species measuring 7mm wide and 5.5mm tall.

Photo title: CRINOID CALYX

Taxa present: Gennaeocrinus goldringae

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