Currently showing records 1 - 20 of 46 total

More Info Image Taxa Strat Unit Contributor
Megistocrinus rugosus Four Mile Dam formation David Thompson

Submitted on 2007-03-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This example of Megistocrinus rugosus crinoid caylx shows how at times mineral replacement can be of a rich red Calcite, making a nice fossil more attractive. This was collected at a bioherm or fossil 'reef' in a quarry. This shows the stem base, the upper tegman is complete also.

Photo title: A 'carnelian' crinoid from Alpena

Taxa present: Megistocrinus rugosus

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Megistocrinus rugosus Four Mile Dam formation David Thompson

Submitted on 2007-03-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This shows the tegmen of the previous Megistocrinus rugosus with the red replacement. Traces of red are found in fossils near the bioherms but rarely a complete calyx with this much. U.S. Ten Cent piece for scale

Photo title: The tegmen of 'red' crinoid

Taxa present: Megistocrinus rugosus

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Eutaxocrinus sp. Four Mile Dam formation Stan Hyne

Submitted on 2007-11-03 by Stan Hyne

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Undescribed crinoid from the Dock Street Clay prepared by Scott Vergiels

Photo title: RARE CRINOID CROWN

Taxa present: Eutaxocrinus sp.

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Euryocrinus barrisi Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-02-22 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Specimen is listed as being from the Dock Street Clay. Crown is 4 cm top to bottom.

Photo title: Crinoid crown

Taxa present: Euryocrinus barrisi

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Favosites clausus Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-02-23 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: Specimen is about 10 cm across.

Photo title: Coral

Taxa present: Favosites clausus

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Turbinopsis anacarina
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-03-15 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is the holotype for the species. It is 3.5 cm across.

Photo title: Gastropod

Taxa present: Turbinopsis anacarina

UMMP specimen number: holotype 47381

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Timeischytes megapinacotus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-16 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: A very tiny specimen that is only 0.3 cm in diameter and is sitting on a bryozoan. This specimen is a paratype.

Photo title: Edrioasteroid

Taxa present: Timeischytes megapinacotus

UMMP specimen number: paratype 35428

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Conocardium pseudobellum
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-17 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: View #1. This rostroconch is a paratype and is 2.5 cm across.

Photo title: Rostroconch -View #1

Taxa present: Conocardium pseudobellum

UMMP specimen number: paratype 47286

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Conocardium pseudobellum
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-17 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This is view #2. See view #1 for additional information.

Photo title: Rostroconch - View #2

Taxa present: Conocardium pseudobellum

UMMP specimen number: paratype 47286

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Ancyrocrinus bulbosus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-27 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is 3 cm. It is hypotype.

Photo title: Crinoid holdfast

Taxa present: Ancyrocrinus bulbosus

UMMP specimen number: hypotype 57702

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Ancyrocrinus bulbosus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-27 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is a rare find that has the entire crinoid (crown, stem and holdfast). The specimen is 6 cm. It is a hypotype.

Photo title: Crinoid

Taxa present: Ancyrocrinus bulbosus

UMMP specimen number: hypotype 23867

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Ancyrocrinus bulbosus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-05-27 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is 3 cm. It is a hypotype.

Photo title: Crinoid holdfast

Taxa present: Ancyrocrinus bulbosus

UMMP specimen number: hypotype 57706

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Plethomytitus sp. Four Mile Dam formation ummp invertebrate paleontology

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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Conocardium pseudobellum
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

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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Lipsanocystis rugosus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is the holotype for the species. it is 1.4 cm tall.

Photo title: Cystoid - View #1

Taxa present: Lipsanocystis rugosus

UMMP specimen number: holotype 31432

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Lipsanocystis rugosus
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-10-28 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: see view 1 for additional information.

Photo title: Cystoid - View #2

Taxa present: Lipsanocystis rugosus

UMMP specimen number: holotype 31432

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Fenestrellina regularis
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-11-26 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is a holotype. It is 2.5 cm across.

Photo title: Bryozoan

Taxa present: Fenestrellina regularis

UMMP specimen number: holotype 17069

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Fenestrellina alpenensis
Type Specimen
Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-11-26 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is a holotype. It is 3 cm across.

Photo title: Bryozoan

Taxa present: Fenestrellina alpenensis

UMMP specimen number: holotype 17071

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Botryllopora socialis Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-11-27 by ummp invertebrate paleontology

Location (approximate): , Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is a geneotype. It is 2 cm across.

Photo title: Bryozoan

Taxa present: Botryllopora socialis

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Greenops aequituberculatus Four Mile Dam formation ummp invertebrate paleontology

Submitted on 2008-12-02 by ummp invertebrate paleontology

Location (approximate): Alpena, Alpena, MI

Strat unit: Four Mile Dam formation

Submitter notes: This specimen is 1.2 cm across.

Photo title: Trilobite cephalon

Taxa present: Greenops aequituberculatus

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