Submitted on 2011-12-13 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 6 cm across. The two views are of the same specimen (top and bottom).

Photo title: Crinoid calyx

Taxa present: Megistocrinus rugosus

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Submitted on 2011-12-13 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 0.7 cm across. A very tiny calyx.

Photo title: Crinoid calyx

Taxa present: Cyttarocrinus jewetti

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Submitted on 2011-11-29 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The specimen is 4 inches across.

Photo title: Coral

Taxa present: Favosites placenta

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Submitted on 2011-11-29 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Squaw Bay formation

Submitter notes: The ammonite is 2 inches across.

Photo title: Ammonite

Taxa present: Koenenites cooperi

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Submitted on 2011-11-29 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: The cephalopod is 6 inches across.

Photo title: Cephalopod

Taxa present: Michelinoceras sp.

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Submitted on 2011-11-29 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: The specimen is 6 inches across.

Photo title: Cephalopod

Taxa present: Michelinoceras sp.

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Submitted on 2011-11-29 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The specimen is 3 inches tall.

Photo title: Coral

Taxa present: Cystiphylloides americanum

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Dundee formation

Submitter notes: Rostroconch after preparation & cleaning. This unusual fossil was shown before cleaning on this site.

Photo title: Conocardium cuneus

Taxa present: Conocardium cuneus

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Paulding, Paulding, OH

Strat unit: Dundee formation

Submitter notes: A slightly different view emphasizing the structure of the shell. A U.S. ten cent piece is for scale.

Photo title: Conocardium cuneus from the Dundee Fm., Paulding Co. OH

Taxa present: Conocardium cuneus

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is the tiniest complete Eldredgeops (Phacops) trilobite I have seen or found. The eyes are so tiny I can not determine the species although it did come from Sylvania, Ohio. It is complete but only a few millimeters long as seen by the comparison with the U.S. Ten cent piece next to it. Far rarer then the larger trilobites this site is famous for.

Photo title: A very tiny Eldredgeops (Phacops) trilobite

Taxa present: Eldredgeops

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This shows the brachiopod with a U.S. ten cent piece for scale.

Photo title: Another view of same brachiopod

Taxa present: Leiorhynchus kelloggi

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: This species of Brachiopod, Leiorhynchus kelloggi, from the silica shale often has significant amounts of the original nacre or Mother of Pearl still visible and sparkling after 375 Million years. This example from Milan, Michigan has a large amount of the original shell still shining after all these millions of years!

Photo title: A Silica Brachiopod with iridescent nacre.

Taxa present: Leiorhynchus kelloggi

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This shows a slightly different view with natural coloring to show the decorations.

Photo title: A differing view of the Megistocrinus

Taxa present: Megistocrinus multidecoratus

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: This shows to good effect the varied decorations on the calyx of this species of Megistocrinus. This very large Caylx comes from Partridge Point in Alpena. Unfortunately the entire opposite side is covered with a very hard limey Bryazoan that completely obscures it and only this side, bottom and tegmen could be cleaned and seen.

Photo title: Large Caylx of Megiatocrinus multidecoratus from Alpena

Taxa present: Megistocrinus multidecoratus

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Submitted on 2011-11-05 by David Thompson

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Again shown with a dime for scale. This is the negative to the positive of the little trilobite shown in previous photo.

Photo title: The negative counterpart for the tiny Eldredgeops in the previous photo

Taxa present: Eldredgeops

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Submitted on 2011-08-21 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Squaw Bay formation

Submitter notes:

Photo title: Second view of Zoophycos

Taxa present: zoophycos

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Submitted on 2011-08-21 by David Thompson

Location (approximate): Alpena, Alpena, MI

Strat unit: Squaw Bay formation

Submitter notes: This trace fossil is from the Squaw Bay formation of Alpena and is part of a larger piece. These trace fossils are attributed to a variety of causes from plant or algae fronds to worm feeding activity. The consensus seems to be for the systematic feeding activity of marine worms. This piece is about 18 inches long by 8 inches wide. A twelve inch ruler is for scale.

Photo title: 'rooster-tail' Trace Fossil, Zoophycos

Taxa present: Zoophycos

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Submitted on 2011-08-21 by David Thompson

Location (approximate): Jackson, Jackson, MI

Strat unit: Marshall formation

Submitter notes: This is the interior of a small section of nautiloid, probably Mooreoceras, that shows the Siphuncle and straight septa of the nautiloid. The piece is less then 1 inch or 2. cm

Photo title: Interior of small Nautiloid

Taxa present: Mooreoceras

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Submitted on 2011-08-21 by David Thompson

Location (approximate): Jackson, Jackson, MI

Strat unit: Marshall formation

Submitter notes: This is a small fragment of Ammonite from the Marshall sandstone. The internal whorl is visible but only a few of the simple sutures can be seen in the center making species identification difficult. The entire specimen is less then an inch across. A partial cast of the Pelecypod, Palaeoneilo sulcatina, is below the Ammonite.

Photo title: Ammonite

Taxa present: Ammonite , Palaeonnello sulcatina

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Submitted on 2011-08-21 by David Thompson

Location (approximate): Jackson, Jackson, MI

Strat unit: Marshall formation

Submitter notes: This piece has several Pelecypods,Palaeoneilo sulcatina, and nautiloids, Mooreoceras sp. as well as a fragment of gastropod in the center. The entire cluster is 3.4 inches or 8.6 cm wide

Photo title: Cluster of pelecypods, nautiloids

Taxa present: Palaeoneilo sulcatina, Mooreoceras marshallense, Gastropod

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