Submitted on 2011-08-03 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Squaw Bay formation

Submitter notes: The specimen on the right side of the slab is 7.5 cm across.

Photo title: Cephalopod

Taxa present: Bactrites warthini

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Submitted on 2011-08-03 by Joseph Koniecki

Location (approximate): , Chippewa, MI

Strat unit: Fiborn formation

Submitter notes: The specimen is 3.2 cm across.

Photo title: Conularid

Taxa present: Conularia sp.

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: Here are two examples of Atactotoechus typicus Bryozoan on a horn coral and on the Brachiopod, Megastrophia. The small raised regular monticules are visible on these examples. The Horn Coral is from the Silica formation in Paulding, Ohio and the Megastrophia is from the Silica of Milan, Michigan.

Photo title: Encrusting Bryozoan on varied taxon

Taxa present: Atactotoechus typicus, Heliophyllum halli, Megastrophia concava

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is a Dolatocrinus barrisi with a Platyceras conicum attached to the tegmen. As J. Koniecki pointed out earlier in this listing, the Platyceras conicum is not listed in the species of the Alpena area but it is clear the the platyceras fauna was similiar to other areas of the Michigan Basin and this is another example. The crown and Platyceras are 1.54' or 3.9 cm tall and 1.24' or 3.3 cm wide. there are two additional views.

Photo title: Unusual Snail attached to Crinoid caylx

Taxa present: Dolatocrinus barrisi, Platyceras conicum

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: An additional view showing snail attachment to tegmen of crinoid

Photo title: Snail on crinoid

Taxa present: Dolatocrinus barrisi, Platyceras conicum

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is the last view showing the attachment of the Platyceras to the crinoid. This is quite a small specimen and difficult to show all the details

Photo title: Third view of snail/Crinoid

Taxa present: Dolatocrinus barrisi, Platyceras conicum

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is a Dolatocrinus asterias complete crinoid with full crown, feeding arms and stem, both disarticulated and complete of about 5' or 12.5 cm in length. The entire plate is 12.5' or 18 cm tall by 5' or 12.5 cm wide. the caylx itself is only .5' or 1.5 cm wide and the crown is a total of 4.5 cm tall.

Photo title: Complete small Crinoid on plate.

Taxa present: Dolatocrinus asterias

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Submitted on 2011-06-09 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is a close up view of the small crinoid previously. The species of Dolatocrinus asterias is quite variable in the plate structure of the calyx and this is a young example so the plates may not be typical.

Photo title: Detail of crinoid crown with feeding arms

Taxa present: Dolatocrinus asterias

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 6 cm across.

Photo title: Coral

Taxa present: Heterophrentis simplex

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is 11 cm across.

Photo title: Bryozoan Colony

Taxa present: Leptotrypella quadrangularis

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This specimen is 3 cm tall.

Photo title: Clam

Taxa present: Leiopteria ausablensis

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Thedford, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 19 cm across.

Photo title: Coral Colony

Taxa present: Platyaxum frondosum

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 6.5 cm tall.

Photo title: Coral Colony

Taxa present: Eridophyllum subcaespitosum

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 7.5 cm tall.

Photo title: Coral Colony

Taxa present: Platyaxum frondosum

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This is the first and only reported occurance of the genera from the Arkona locality. The specimen was ID'ed by Dr. Fred Hotchkiss. The specimen is 2.7 cm in diameter. The missing plates of the star are on the negative which was collected and stored.

Photo title: Brittle Star

Taxa present: Loriolaster n. sp.

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Thedford, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Close up view of one of the previously submitted specimens of Platyaxum.

Photo title: Coral Colony

Taxa present: Platyaxum frondosum

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 12.5 cm across.

Photo title: Coral Colony

Taxa present: Platyaxum frondosum

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Submitted on 2011-06-01 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 1.5 cm in diameter. The bryozoan sits on the coral Platyaxum.

Photo title: Bryozoan Colony

Taxa present: Platyaxum frondosum, Botryllopora socialis

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This is a large and pretty complete crown with stem in matrix. The stem is 2 3/4 inches long (7.5 cm). The whole piece is 8 1/2 inches long (21.5 cm), by 5 inches high (12.5 cm). The calyx is 4.1 cm wide and the longest arm is 3.4 cm long.

Photo title: Crown and stem of large Crinoid

Taxa present: Dolatocrinus stellifer

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Submitted on 2011-05-04 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: Closer view of crinoid.

Photo title: Another view of large crinoid from Thunder Bay Limestone

Taxa present: Dolatocrinus stellifer

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