Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Marshall, Calhoun, MI

Strat unit: Marshall formation

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

Photo title: Pelecypod

Taxa present: Myalina michiganensis

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: I found this while looking for specimens to include in this database and was just facinated with the specimen. It is the internal structure of Paraspirifer brachiopod. The specimen is 4 cm across.

Photo title: Brachiopod internal structure

Taxa present: Paraspirifer bownockeri

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): , Hillsdale, MI

Strat unit: Marshall formation

Submitter notes: This specimen is a hypotype. The left specimen is 4 cm across.

Photo title: Pelecypod

Taxa present: Palaeoneilo concentrica

UMMP specimen number: hypotype 43874

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Battle Creek, Calhoun, MI

Strat unit: Marshall formation

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

Photo title: Pelecypod

Taxa present: Sanquinolites unionformis

UMMP specimen number: hypotype 44071

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Submitted on 2008-07-17 by ummp invertebrate paleontology

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

Strat unit: Dundee formation

Submitter notes: From the Calcite Quarry.

Photo title: Pelecypods

Taxa present: Paracyclas proavia

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): , Presque Isle, MI

Strat unit: Dundee formation

Submitter notes: From the Crawford Quarry.

Photo title: Pelecypods

Taxa present: Paracyclas proavia

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: The large specimen on the left is 5 cm top to bottom.

Photo title: Pelecypods

Taxa present: Plethomytitus sp.

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): , Wayne, MI

Strat unit: Amherstburg formation

Submitter notes: This specimen is 4.5 cm top to bottom.

Photo title: Rostroconch - View #1

Taxa present: Conocardium cuneus

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Sylvania, Lucas, OH

Strat unit: Dundee formation

Submitter notes: This specimen is 4 cm top to bottom.

Photo title: Rostroconch

Taxa present: Conocardium sp.

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Whitehouse, Lucas, OH

Strat unit: Columbus formation

Submitter notes: This specimen is 3.5 cm top to bottom.

Photo title: Rostroconch

Taxa present: Conocardium subtrigonale

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): , Monroe, MI

Strat unit: Amherstburg formation

Submitter notes: The mold is 3 cm top to bottom.

Photo title: Rostroconch

Taxa present: Conocardium monroicum

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): , Wayne, MI

Strat unit: Amherstburg formation

Submitter notes: This specimen is 4.5 cm top to bottom.

Photo title: Rostroconch - View #2

Taxa present: Conocardium cuneus

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Submitted on 2008-07-17 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Thhis specimen is a paratype. It is 2.3 cm across.

Photo title: Rostroconch

Taxa present: Conocardium pseudobellum

UMMP specimen number: paratype 47287

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: There are four species of these large 'shrimp-like' animals in the Silica formation. This is an unusual picture as it shows this species from the top with both lateral plates, the axial ridge and prora with the rostrum broken off. This type of preservation is rare, normally only one of the lateral plates shows with the animal on its side. These show incredible iridescent colors when wet and just exposed but turn dull when dry.

Photo title: Phyllocarid Rhinocaris

Taxa present: Rhinocaris ehlersi

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This shows full plate with US 25 cent piece for scale, The Phyllocarid is 6.5 cm long by 2.8 cm wide

Photo title: Full view of plate with Phyllocarid, Rhinocaris.

Taxa present: Rhinocaris ehlersi

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is the second of the four species of Phyllocarid from the Silica. Unlike the previous photos, this species has clear patterns of lines in its lateral plates and tail pieces or somites. Also this shows one of the paired gastric teeth or mandibles used by Phyllocarids to eat their prey as shrimp and lobsters do today.

Photo title: Phyllocarid Herbertocaris with gastric 'teeth'

Taxa present: Herbertocaris wideneri

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is a closeup of the previous photo showing the mandible in greater detail.

Photo title: Detail of Mandible

Taxa present: Herbertocaris wideneri

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This detail shows the texture and striations in the shell material of one of the somites or tail sections of the animal.

Photo title: Detail of 'shell' of Phyllocarid somite or tail.

Taxa present: Herbertocaris wideneri

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Submitted on 2008-06-09 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This believed to be the lateral plate of the third species of Phyllocarid from the Silica and shows a bit of the lateral ridge that is not present in other species of Phyllocarid from this formation. Due to the fragmented nature of the specimen however, this could also be part of one of the other species found in the Silica.

Photo title: Third species of Phyllocarid from Silica Formation

Taxa present: Dithyrocaris neptuni

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Submitted on 2008-06-06 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: George McIntosh has identified this crinoid as probably Nassoviocrinus. He stated that if the identification holds up upon closer examination, that it would be the first report of a Nassviocrinus from the Alpena area. The crinoid crown is 2.5 cm tall.

Photo title: Crinoid

Taxa present: Nassoviocrinus sp., Corocrinus sp.

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