Submitted on 2008-10-07 by David Clark

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: Prepared by Scott Vergiels. Photo by Colin Sumrall. Rare late Devonian cystoid donated to UMMP. Potentially the second known specimen of this species.

Photo title:

Taxa present: Lipsanocystis oblatus

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Submitted on 2008-10-07 by Ken Dobson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes:

Photo title: Detail of arms and crown

Taxa present: Megistocrinus nodosus

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Submitted on 2008-10-07 by Ken Dobson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: Also the extent and variety of bryozoa is clear on the plate.

Photo title: This shows the detail of the stem with the cirri and the base of another incomplete Megistocrinus

Taxa present: Megistocrinus nodosus

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Submitted on 2008-10-07 by Ken Dobson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This view is photographed on a black background that can show details not seen in natural color.

Photo title: Another view to show detail of the whole crinoid

Taxa present: Megistocrinus nodosus

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is the holotype for the species. It is 2 cm tall.

Photo title: Cystoid - View #1

Taxa present: Lipsanocystis traversensis

UMMP specimen number: holotype 5414

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: See view 1 for additional information.

Photo title: Cystoid - View #2

Taxa present: Lipsanocystis traversensis

UMMP specimen number: holotype 5414

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is a hypotype. It is 2 cm tall.

Photo title: Cystoid - View #1

Taxa present: Lipsanocystis traversensis

UMMP specimen number: hypotype 26422

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: See view 1 for additional information.

Photo title: Cystoid - View #2

Taxa present: Lipsanocystis traversensis

UMMP specimen number: hypotype 26422

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is a topotype. It is 2.3 cm tall.

Photo title: Cystoid - View #1

Taxa present: Lipsanocystis traversensis

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: See view 1 for additional information.

Photo title: Cystoid - View #2

Taxa present: Lipsanocystis traversensis

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is a hypotype. It is 4.2 cm tall.

Photo title: Blastoid - View #1

Taxa present: Placoblastus obovatus

UMMP specimen number: hypotype 1262

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: See view 1 for additional information.

Photo title: Blastoid - View #2

Taxa present: Placoblastus obovatus

UMMP specimen number: hypotype 1262

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Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is the holotype for the species. It is 2 cm tall.

Photo title: Crinoid

Taxa present: Corocrinus pettyesi

UMMP specimen number: holotype 30529

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Submitted on 2008-11-02 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is theholotype for the species. It is 1.5 cm across.

Photo title: Crinoid

Taxa present: Gilbertsocrinus alpenensis

UMMP specimen number: holotype 9433

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Submitted on 2008-11-02 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This specimen is the holotype for the species. It is 1.4 cm across.

Photo title: Crinoid - View #1

Taxa present: Lennaeocrinus goldringae

UMMP specimen number: holotype 9434

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Submitted on 2008-11-02 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: See view #1 for additional information.

Photo title: Crinoid - View #2

Taxa present: Lennaeocrinus goldringae

UMMP specimen number: holotype 9434

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Submitted on 2008-11-23 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This crinoid with crown and stem was preserved at the bottom of a channel and was covered by Bryozoa. This was revealed after the fronds of bryozoans were removed.

Photo title: Crinoid with stem and arms

Taxa present: Botryocrinus thomasi

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Submitted on 2008-11-23 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes:

Photo title: A more detailed view

Taxa present: Botryocrinus thomasi

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Submitted on 2008-11-23 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This shows the curved nature of the matrix in which the crinoid was washed(?) and covered with additional matrix to preserve all.

Photo title: Third view showing the 'pipe' in which the crinoid was preserved.

Taxa present: Botryocrinus thomasi

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Submitted on 2008-11-23 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This calyx was preserved in soft shale mud so that all the details were protected.

Photo title: well preserved caylx (bottom or stem view)

Taxa present: Megistocrinus multidecoratus

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