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): 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 2008-05-12 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 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): 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 2008-05-11 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Potter Farm formation

Submitter notes:

Photo title: very detailed view of coralites

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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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: 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 2008-04-28 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This specimen is 6.5 cm top to bottom.

Photo title: Pelecypod

Taxa present: Limoptera macroptera

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): Rogers City, Presque Isle, MI

Strat unit: Rogers City formation

Submitter notes: This specimen is the interior mold of a pelecypod. The specimen is 12 cm across. It is a hypotype.

Photo title: Pelecypod

Taxa present: Liromytilus attenuatus

UMMP specimen number: hypotype 23921

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): Saint Ignace, Mackinac, MI

Strat unit: Bois Blanc formation

Submitter notes: This specimen is 5 cm across.

Photo title: Pelecypod

Taxa present: Cypricardinia sp.

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): , Delta, MI

Strat unit: Trenton formation

Submitter notes: This specimen is 6 cm across. It is the holotype for the species.

Photo title: Pelecypod

Taxa present: Cuneamya childsi

UMMP specimen number: holotype 26392

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): , Chippewa, MI

Strat unit: Trenton formation

Submitter notes: This specimen is 5 cm across.

Photo title: Cystoid

Taxa present: Amecystis laevis

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): Escanaba, Delta, MI

Strat unit: Trenton formation

Submitter notes: This specimen is 3 cm across. The specimen is a hypotype.

Photo title: Edrioasteroid

Taxa present: Edrioaster bigsbyi

UMMP specimen number: hypotype 10347

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is the holotype for the species, It is 7.5 cm across the slab.

Photo title: Trilobites

Taxa present: Phacops iowensis southworthi

UMMP specimen number: holotype 24313

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Submitted on 2008-04-28 by ummp invertebrate paleontology

Location (approximate): , Alpena, MI

Strat unit: Genshaw formation

Submitter notes: The average size of these specimens is 7 cm across. These specimens are homeotypes.

Photo title: Corals

Taxa present: Pinnatophyllum scyphus

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Submitted on 2008-04-27 by ummp invertebrate paleontology

Location (approximate): Thedford, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This slab of cephalopods ia approximately 20 cm across. It is probably one of the rarest fossils in the Arkona Fm. Fortunately, this slab is in the university collection.

Photo title: Cephalopds

Taxa present: Arkonoceras arkonense

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Ancyrocrinus holdfasts are considered uncommon in the shale. This specimen retains two of the anchor points and a portion of the stem is attached. The square stem is a feature of this crinoid species. The length of the holdfast and stem is 78mm. The anchor points are approx. 35mm long.

Photo title: Crinoid Holdfast

Taxa present: Ancyrocrinus bulbosus

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Only three of these extremely rare crinoids are known. They may belong to A. bulbosus but further study is needed to determine that at the species level. The calyx measures 15mm x 11mm.

Photo title: Crinoid Calyx

Taxa present: Ancyrocrinus bulbosus

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