Submitted on 2009-02-05 by John Topor

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: One of four different genera that are found in this formation. This is a large specimen for the species. It measures 25.6mm high x 15mm at the widest point.

Photo title: Blastoid

Taxa present: Hyperoblastus bassleri

View full record

Submitted on 2009-02-05 by John Topor

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: These three fine specimens were found together in the Medusa North Quarry. Note the different poses as they were not found on the same plane but were sort of loosely entwined. The one on the left measures 41.5mm x 28mm, Top right is 45.5mm x 26mm and lower right is 41mm x 23mm. Commonly known as Phacops.

Photo title: Trilobite Trio

Taxa present: Eldredgeops milleri

View full record

Submitted on 2009-02-05 by John Topor

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: A large gastropod found in units 7-9. The specimen on the left in the photo measures 44mm x 35.5mm and the right is 42.5mm x 39mm.

Photo title: Gastropod

Taxa present: Platyceras bucculentum

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record

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

View full record