Submitted on 2008-05-16 by ummp invertebrate paleontology

Location (approximate): Rockport, Alpena, MI

Strat unit: Bell formation

Submitter notes: This specimen is 5 cm tall. The specimen is a paratype.

Photo title: Crinoids

Taxa present: Botryocrinus bellensis

UMMP specimen number: paratype 57967

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Submitted on 2008-05-16 by ummp invertebrate paleontology

Location (approximate): Rockport, Alpena, MI

Strat unit: Bell formation

Submitter notes: This specimen is also a paratype. The lower crinoid is 4 cm tall.

Photo title: Crinoids

Taxa present: Botryocrinus bellensis

UMMP specimen number: paratype 57968

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This series shows two species of Pelecypods from the Silica formation from several angles to show their structure but this is not too exciting to view. The Silica bivalves generally are casts or Steinkerns with little shell other then thin phosphatic layers and as such are overlooked. Here are two similar species distinguished mostly by size. The larger is nodocostata and the smaller is sylvaniensis. The smaller is 2' long by 1 1/4' wide (5 X 3 cm). The larger is 2 1/4' long by 2' wide by 1 1/2' high (5.5 X 5 x 3.5 cm).

Photo title: Silica Pelecypods

Taxa present: Grammysia sylvaniensis, Grammysia nodocostata

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: Another view of the bottom of the G. sylvaniensis and the larger nodocostata,

Photo title: Silica Bivalves

Taxa present: Grammysia nodocostata, Grammysia sylvaniensis

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This shows the thin layer on the bottom of the larger G. nodocostata, Although the previous photos identified the location of the Bivalves as Milan in Washtenaw county, this larger was found at Sylvania in Ohio. The bivalve is 2 1/4' long by 2' wide ( 5.5 X 5 cm).

Photo title: Bottom of bivalve

Taxa present: Grammysia nodocostata

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: This example of Platyceras rarispinum from the Widder beds at Arkona, Ontario was the first gastropod that I found ever. It is also a nice example of the species.The snail is 1 3/4'(3.5 cm) high and wide.

Photo title: Gastropod from Arkona, Ontario

Taxa present: Platyceras rarispinum

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: This shows the compressed body of the snail.

Photo title: Gastropod from Arkona, Ontario, third view

Taxa present: Platyceras rarispinum

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Submitted on 2008-05-13 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: Opposite view of Platyceras

Photo title: Gastropod from Arkona, Ontario

Taxa present: Platyceras rarispinum

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Traverse formation

Submitter notes: This large branching coral colony was found in many pieces in the ditch near the cemetery in Alpena, MI This was painstakingly re-assembled and restored by Scott Vergiels of the 'Friends'

Photo title: A Branching Coral Colony

Taxa present: Cystiphylloides petoskeyenes (potterenes?)

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: Another view of this large coral. The coral is 8'(20.5 cm)high by 9 1/2' (24. cm) wide. In the first view hand gives scale. In this a USA 25 cent piece is used.

Photo title: Another view of same branching coral,

Taxa present: Cystiphylloides petoskeyenes (potterenes?)

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: This shows opening and internal structure of coral. This opening is 2' (5. cm) across.

Photo title: View of individual coralite,

Taxa present: Cystiphylloides petoskeyenes (potterenes?)

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This shows the opposite view of Strophodonta demissa with some small Bryozoan, Hederella concinnoides, growing on it.

Photo title: Opposite view of Brachiopod

Taxa present: Strophodonta demissa, Hederella concinnoides

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The top view of same specimen.

Photo title: Callipleura nobilis, Brachiopod

Taxa present: Callipleura nobilis

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This is another example of this lovely brachiopod from the Hungry hollow formation in Ontario, Canada. This is a nice large example at 1 1/4' (3. cm)

Photo title: Callipleura nobilis, Brachiopod

Taxa present: Callipleura nobilis,

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This brachiopod, Strophodonta demissa, has an inarticulate brachiopod, Petrocrania hamiltoniae, on it and on that inarticulate there is the tabulate coral, Aulopora microbuccinata., but not on the big brachiopod (?). In addition there are two Bryozoans on the brachiopods; Atactotoechus cf. typicus (a trepostome bryozoan) covers the side opposite the Inarticulate and Hederella filiformis (cyclostome bryozoan) on the base. Also Hederella concinnoides on the reverse and also on the inarticulate.

Photo title: A Brachiopod, Strophodonta demissa, with lots of epifauna!

Taxa present: Strophodonta demissa, Petrocrania hamiltoniae, Aulopora microbuccinata, Atactotoechus typicus, Hederella filiformis, Hederella concinnoides

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes:

Photo title: Another view of same Brachiopod with epifauna

Taxa present: Strophodonta demissa

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Submitted on 2008-05-12 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This view shows the Bryozoans, Atactotoechus cf. typicus and the Hederella filiformis (cyclostome bryozoan)

Photo title: Third view of brachiopod

Taxa present: Atactotoechus typicus, Strophodonta demissa, Hederella filiformis

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Submitted on 2008-05-11 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: A complete coral head for the Spongophyllum alpenense species,similar to the famous 'Petoskey'stone,(Hexagonaria sp.) when these are water worn or polished. This is the natural fossil with unworn coralites as it was buried in sediment and preserved in detail.

Photo title: Spongophyllum alpenense, Coral head

Taxa present: Spongophyllum alpenense.

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Submitted on 2008-05-11 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: This is a side view of the Spongophyllum alpenense

Photo title: Another view of same coral head

Taxa present: Spongophyllum alpenense.

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Submitted on 2008-05-11 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes: Closeup view of Spongophyllum alpenense coral showing detail of coralites. There are several Bryozoan colonies upon the same coral head. The coral is about 9'(22.8 cm) by 7' (17.7 cm) by 4 1/2' (11.4 cm) thick and weighs 8 1/2 lb or 3.85 Kg. This was removed from soft clay at the Potter Farm location in Alpena.

Photo title: Detail of coralites

Taxa present: Spongophyllum alpenense.

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