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Pseudoatrypa devoniana |
Silica formation |
John Topor |
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Submitted on 2009-02-05 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This brachiopod is common in unit 7. Specimens can show a great range of variation. The largest specimen in the photo measures 35mm x 36mm.
Photo title: Brachiopods
Taxa present: Pseudoatrypa devoniana
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Rhipidomella vanuxemi |
Silica formation |
John Topor |
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Submitted on 2009-02-05 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: These specimens are likely from unit 7. Single valves are often found in this unit. The large specimen measures 24.5mm x 26.7mm.
Photo title: Brachiopod
Taxa present: Rhipidomella vanuxemi
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Reptaria stolonifera |
Silica formation |
John Topor |
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Submitted on 2009-02-05 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: VIEW #2: Zoarium of this species of bryozoan are usually present on the casts of the living chambers of cephalopods. In this case, a straight nautiloid cephalopod. The cephalopod measures 78.7mm long and 26mm at the widest point.
Photo title: Bryozoan encrusting a Cephalopod
Taxa present: Reptaria stolonifera
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Reptaria stolonifera |
Silica formation |
John Topor |
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Submitted on 2009-02-05 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: VIEW #1: Zoarium of this species of bryozoan are usually present on the casts of the living chambers of cephalopods. In this case, a straight nautiloid cephalopod. The cephalopod measures 78.7mm long and 26mm at the widest point. Note the small brachiopod attached on the right.
Photo title: Bryozoan encrusting a Cephalopod
Taxa present: Reptaria stolonifera
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Intrapora irregularis, Hernodia humifusa |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: The bryozoan Hernodia is encrusting the bryozoan Intrapora. From unit 12 of the Medusa North Quarry. The largest of the 4 specimens in the photo measures 22mm long by 11mm wide.
Photo title: Bryozoan
Taxa present: Intrapora irregularis, Hernodia humifusa
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Hyperoblastus reimanni |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: A nice, large for the species, specimen measuring 13mm tall by 8.6mm wide. Most blastoids from this formation are small.
Photo title: Blastoid
Taxa present: Hyperoblastus reimanni
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Hyperoblastus reimanni |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: This rare blastoid is found in units 7, 13 & 14 of the Silica quarries. In old material collected in unit 13 it was more common and could sometimes be found with brachioles. This specimen measures 11.9mm X 9.1mm and is considered large.
Photo title: Blastoid
Taxa present: Hyperoblastus reimanni
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Devonochonetes fragilis |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: These specimens were collected at the Martin-Marietta Quarry. The larger measures 25.3mm x 16.3mm.
Photo title: Brachiopod
Taxa present: Devonochonetes fragilis
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Protoleptostrophia perplana |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: These strophomenid brachiopods were collected on the shale dump piles at the Martin-Marietta Quarry. The larger measures 44.3mm x 36.2mm.
Photo title: Brachiopod
Taxa present: Protoleptostrophia perplana
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Echinocoelia umbonata |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This brachiopod is abundant in unit 17 of the Silica Fm. Formerly known by the genus 'Ambocoelia'. Note: dime for size.
Photo title: Brachiopods
Taxa present: Echinocoelia umbonata
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Sphenophragmus nanus |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This brachiopod is abundant in unit 18A (coral bioherm) of the Silica Fm. It is also rarely found in units 7 & 17. Note: dime for size.
Photo title: Brachiopods
Taxa present: Sphenophragmus nanus
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Megastrophia concava |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This large brachiopod was collected at the Medusa quarry. Probably unit 8. It measures 54.3mm x 44.1mm.
Photo title: Brachiopod
Taxa present: Megastrophia concava
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Hercostrophia robusta |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: These fragile specimens were collected from unit 7 of the Medusa North Quarry. The largest measures 24.2mm x 19.7mm.
Photo title: Brachiopods
Taxa present: Hercostrophia robusta
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Tropidoleptus carinatus |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Milan, Washtenaw, MI
Strat unit: Silica formation
Submitter notes: These specimens were collected at the Martin-Marietta Quarry. The largest measures 20mm x 17.2mm
Photo title: Brachiopods
Taxa present: Tropidoleptus carinatus
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Trachypora labyrinthica |
Silica formation |
John Topor |
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Submitted on 2009-02-04 by John Topor
Location (approximate): Sylvania, Lucas, OH
Strat unit: Silica formation
Submitter notes: This tabulate coral was collected from unit 7 of the Medusa North Quarry. The largest measures 11mm x 20mm.
Photo title: Coral
Taxa present: Trachypora labyrinthica
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Endoceras proteiforme |
Trenton formation |
ummp invertebrate paleontology |
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Submitted on 2009-01-27 by ummp invertebrate paleontology
Location (approximate): St. Joseph, Algoma, ON
Strat unit: Trenton formation
Submitter notes: See view #1 for more information
Photo title: Cephalopod - View #2
Taxa present: Endoceras proteiforme
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Endoceras proteiforme |
Trenton formation |
ummp invertebrate paleontology |
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Submitted on 2009-01-27 by ummp invertebrate paleontology
Location (approximate): St. Joseph, Algoma, ON
Strat unit: Trenton formation
Submitter notes: This cephalopod is 18 cm across. I have listed this specimen as being from Ontario even though the label with the specimen says Michigan. There is no St. Jospeh Island, Michigan.
Photo title: Cephalopod - View #1
Taxa present: Endoceras proteiforme
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Euryrizocerus sp. |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2009-01-27 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 4 cm across.
Photo title: Cephalopod
Taxa present: Euryrizocerus sp.
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Euryrizocerus sp. |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2009-01-27 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 2.7 cm across.
Photo title: Cephalopod
Taxa present: Euryrizocerus sp.
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Huronia vertebralis |
Manistique formation |
ummp invertebrate paleontology |
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Submitted on 2009-01-27 by ummp invertebrate paleontology
Location (approximate): , Chippewa, MI
Strat unit: Manistique formation
Submitter notes: This specimen is 18 cm across. It is from Drummond Island.
Photo title: Cephalopod
Taxa present: Huronia vertebralis
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