Submitted on 2008-02-24 by David Thompson

Location (approximate): Petoskey, Emmet, MI

Strat unit: Traverse formation

Submitter notes: This is one of three views of this coral from the West side of Michigan near Petoskey in Emmet County, MI. The correlation of Northwestern and Northeastern goes by different names from one side of the state to the other. This was collected in the 'Kegomic Quarry' just to the East of the city of Petoskey. This is now a series of expensive condominiums and off limits to collecting. The 'Petoskey formation' here is comparable to the Potter Farm/Thunder Bay Fms. at Alpena according to the U. of M. Papers in Paleontology No. 7

Photo title: Hexagonaria percarinata, Coral head

Taxa present: Hexagonaria percarinata

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Petoskey, Emmet, MI

Strat unit: Traverse formation

Submitter notes: This second view shows the base of the coral head from the Petoskey formation with a US 10 cent piece for scale. The actual size is 5 1/4' wide (13. cm) by 4 3/4' long (11.5 cm) by 2 1/2' (6.5 cm) high. This coral had been preserved in sandy matrix and appears weathered but is quite pristine.

Photo title: Hexagonaria percarinata, Coral head

Taxa present: Hexagonaria percarinata

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Petoskey, Emmet, MI

Strat unit: Traverse formation

Submitter notes: This last view is from the side of the previous two.

Photo title: Hexagonaria percarinata, Coral head

Taxa present: Hexagonaria percarinata

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Charlevoix, Charlevoix, MI

Strat unit: Traverse formation

Submitter notes: These three views are of an unusual bryozoan that is rectangular rather then stick-like or encrusting or fan shaped. It seems to be unique to the Devonian of Western Michigan and does not appear in the East I am aware of. These are in matrix but as individual pieces they can be triangular and look almost man-made. these are from the 'Whiskey Creek' formation of the Charlevoix Limestone

Photo title: Scalaripora variosa, unusual bryozoan

Taxa present: Scalaripora variosa

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Charlevoix, Charlevoix, MI

Strat unit: Traverse formation

Submitter notes: A different view of the same bryozoan specimen.

Photo title: Scalaripora variosa,

Taxa present: Scalaripora variosa

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Charlevoix, Charlevoix, MI

Strat unit: Traverse formation

Submitter notes: A third example of this bryozoan

Photo title: Scalaripora variosa,

Taxa present: Scalaripora variosa

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Marquette, Marquette, MI

Strat unit: Kona Dolomite formation

Submitter notes: This is an example of the 'Kona Dolomite' which is a stromatolite formed by the Cyanophyte, Collenia undosa. This is Pre-Cambrian from the Kona hills of Marquette County and shows the layered banding of sediments characteristic of Stromatolites. The actual blue-green algae is not present.

Photo title: Collenia undosa, Kona Dolomite

Taxa present: Collenia undosa

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Submitted on 2008-02-24 by David Thompson

Location (approximate): Marquette, Marquette, MI

Strat unit: Kona Dolomite formation

Submitter notes: This is a closer view of the previous block. Although the Kona Dolomite started out as dolomite, the pressures exerted through 2.2 Billion years has turned this into a rich marble with quartz inclusions and attractive colors

Photo title: Collenia undosa, Kona Dolomite

Taxa present: Collenia undosa

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a hypotype and measures about 4 cm across.

Photo title: Bivalve (clam)

Taxa present: Ptychoperia flabellum

UMMP specimen number: hypotype 61422

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Chandler Falls formation

Submitter notes: This specimen is a hypotype and measures about 3 cm across.

Photo title: Brachiopod

Taxa present: Strophomena filitexta

UMMP specimen number: hypotype 30147

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): , Chippewa, MI

Strat unit: Manistique formation

Submitter notes: This specimen is a hypotype. It measures 10 cm across.

Photo title: Cephalopod

Taxa present: Huronia vertebralis

UMMP specimen number: hypotype 2815

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Engadine, Mackinac, MI

Strat unit: Manistique formation

Submitter notes: This specimen is the holotype for this species. It measures 9 cm across.

Photo title: Cephalopod

Taxa present: Stokesoceras engadinense

UMMP specimen number: holotype 7551

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): , Mackinac, MI

Strat unit: Burnt Bluff formation

Submitter notes: This specimen is a diploholotype and measures 7 cm across.

Photo title: Cephalopod

Taxa present: Stokesoceras romingeri

UMMP specimen number: holotype 7557

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a hypotypo and is 12 cm across.

Photo title: Bryozoan

Taxa present: Sulcoretepora deissi

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): , Huron, MI

Strat unit: Coldwater formation

Submitter notes: The brachiopods are about 1 cm across.

Photo title: Brachiopods

Taxa present: Chonetes scitulus

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a hypotype and is 3 cm top to bottom.

Photo title: Inarticulate Brachiopod

Taxa present: Dignomia alveata

UMMP specimen number: hypotype 57146

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a hypotype. The brachiopods are encrusting a cephalopod of which 10 cm is shown in the photo

Photo title: Inarticulate Brachiopods

Taxa present: Petrocrania hamiltoniae

UMMP specimen number: hypotype 29426

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This speicmen is a hypotype and is 4 cm across.

Photo title: Inarticulate Brachiopod

Taxa present: Roemerella grandis

UMMP specimen number: hypotype 57159

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Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Specimen is about 10 cm across.

Photo title: Coral

Taxa present: Favosites clausus

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Submitted on 2008-02-22 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Specimen is listed as being from the Dock Street Clay. Crown is 4 cm top to bottom.

Photo title: Crinoid crown

Taxa present: Euryocrinus barrisi

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