Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is the holotype for the species and is 21 cm across.

Photo title: Coral

Taxa present: Trachypora silicensis

UMMP specimen number: holotype 53063

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is a hypotype and is 7 cm including the stem.

Photo title: Crinoid

Taxa present: Synbathocrinus michiganensis

UMMP specimen number: hypotype 57632

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Manistique formation

Submitter notes: This specimen is 18 cm across.

Photo title: Coral

Taxa present: Favosites favosus

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Charlevoix, Charlevoix, MI

Strat unit: Traverse formation

Submitter notes: This specimen is a paratype and is 2.7 cm top-bottom.

Photo title:

Taxa present: Aviculopecten sp.

UMMP specimen number: paratype 20318

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Bill's Creek formation

Submitter notes: This specimen is the holotype for this species. It is 2 cm top to bottom.

Photo title: Inarticulate Brachiopod

Taxa present: Lingula changi

UMMP specimen number: holotype 9865

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Bay de Noc formation

Submitter notes: This specimen is a hypotype and is 3.5 cm across.

Photo title: Brachiopod

Taxa present: Herbertella alveata

UMMP specimen number: hypotype 9807

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): , Chippewa, MI

Strat unit: Pte aux Chenes formation

Submitter notes: This specimen is a hypotype and is 5 cm across the slab. The label reads St.Ignace, Michigan but this database does not recognize St.Ignace as a city in Michigan.

Photo title: Graptolites

Taxa present: Medusaegraptus graminiformis

UMMP specimen number: hypotype 23563

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Groos Quarry formation

Submitter notes: This specimen is 4 cm tall.

Photo title: Graptolites

Taxa present: Dictyonema sp.

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a hypotype and is 2.5 cm across

Photo title: Crinoid

Taxa present: Euryocrinus laddii

UMMP specimen number: hypotype 61311

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a paratype and is 3 cm tall.

Photo title: Crinoid

Taxa present: Eutaxocrinus wideneri

UMMP specimen number: paratype 57901

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is the holotype for the species. It is 12 cm tall.

Photo title: Crinoid

Taxa present: Proctothylacocrinus berryorum

UMMP specimen number: holotype 58656

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Submitted on 2008-03-01 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is a paratype and is 10 cm tall.

Photo title: Crinoid

Taxa present: Proctothylacocrinus longus

UMMP specimen number: paratype 27695

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Submitted on 2008-02-25 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Traverse formation

Submitter notes: These two examples show an unusual form of the coral, Favosites turbinatus, in the form of crinoid calyxes! The bases have stem or what appears to be stem attachments then the coralites are forming a cup or calyx that mimics a crinoid. On turning the form over (see next photo) the coral is very clear.

Photo title: unusual forms of Favosites coral

Taxa present: Favosites turbinatus

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Submitted on 2008-02-25 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Traverse formation

Submitter notes: This shows the reverse of the previous photo so that the coral can be seen mimicking the crinoid.

Photo title: second photo of unusual coral forms

Taxa present: Favosites turbinatus

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Submitted on 2008-02-25 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Traverse formation

Submitter notes: In the Genshaw formation there is a noted section containing these small inflated Athyris brachiopods along with small Atrypa species. There are thousands of these small brachiopods all of the same size and few showing any predatory borings or damage. Due to hydrocarbons in some nearby layers and the presence of water, they are a distinct and clear blue. Once dry, they are a flat gray. These were collected and are being kept in water to preserve the color which shows a bit in these photos.

Photo title: blue Athyris brachiopods from the 'blue beds'

Taxa present: Athyris lens

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Submitted on 2008-02-25 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Traverse formation

Submitter notes: Another view of these small brachiopods. Where these are found they are all about the same size but in a deep layer. Considering the numbers found at exposed sites,there must be millions of these brachiopods in the formation. It is staggering to wonder what was going on at this time whereby so many brachiopods of almost one size (and age?) lived and died preserved this way. These are things I wonder about and make collecting so fascinating.

Photo title: blue Athyris brachiopods from the 'blue beds'

Taxa present: Athyris lens

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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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