Submitted on 2008-03-22 by ummp invertebrate paleontology

Location (approximate): Thedford, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 8 cm across. It is a hypotype.

Photo title: Coral

Taxa present: Heliophyllum tenuiseptatum

UMMP specimen number: hypotype 8567

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Submitted on 2008-03-22 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen is 1.6 cm across.

Photo title: Gastropod

Taxa present: Naticonema lineata

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Submitted on 2008-03-22 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A syperb specimen that is 5 cm tall.

Photo title: Gastropod

Taxa present: Platyceras conicum

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Submitted on 2008-03-23 by Joseph Koniecki

Location (approximate): Thedford, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This crinoid is 3.5 cm across.

Photo title: Crinoid calyx

Taxa present: Megistocrinus rugosus

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Submitted on 2008-03-23 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The larger specimen is 5.5 cm across.

Photo title: Coral

Taxa present: Heterophrentis sp.

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Submitted on 2008-03-29 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A very nice specimen of a bryozoan attached to a coral. Additional, unnamed bryozoans lie around the main specimen. The bryozoan is 4 cm including the base.

Photo title: Bryozoan

Taxa present: Reteporina striata

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: One of the rarer blastoids occurring in the Hungry Hollow Fm., Its distinctive features include striations and bumps on the radials as well as highly ornamented basals. The largest of the pictured specimens measures 16mm in height and the smallest is 14.8mm tall.

Photo title: Blastoid

Taxa present: Hyperoblastus cummingsi

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: One of the rarest of all blastoids in any of the formations in the Arkona-Thedford area, this inflated specimen on matrix is 17.8mm tall and 9mm at the widest point.

Photo title: Blastoid

Taxa present: Pleuroschisma lycorias

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A very rare crinoid calyx. The larger specimen measures 12mm x 9mm and the smaller is 7.5mm x 8.5mm.

Photo title: Crinoid Calyx

Taxa present: Pyrenocrinus berryorum

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This camerate crinoid is slightly rarer than Dolatocrinus or Megistocrinus in the formation. Some specimens can be heavily pyritized. This partial crown measures 43mm high, 36mm wide and the calyx is about 14mm in diameter.

Photo title: Partial Crinoid Crown

Taxa present: Gilbertsocrinus spinigerus

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: These very rare sponges from the Hungry Hollow mb. are somewhat saucer-shaped and covered with smooth spicules. The slab measures 40mm x 35mm.

Photo title: Sponge (Porifera)

Taxa present: Gondekia hastula

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Evan Topor found this large crinoid calyx. The find was made even better when the large gastropod was uncovered alongside it. The crinoid is 27mm in diameter and the gastropod is 34mm in diameter. The slab is 88mm x 57mm.

Photo title: Crinoid Calyx and Gastropod

Taxa present: Dolatocrinus liratus, Naticonema lineata

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The checklist of fossils from the area lists four different species of Fenestella from the Hungry Hollow mb. Most bryozoa are difficult to identify and require thin sectioning for positive I.D. I can identify only by sight. This specimen nearly covers the slab measuring 79mm x59mm.

Photo title: Bryozoan

Taxa present: Fenestella arkonensis

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The checklist of fossils from the area lists four different species of Fenestella from the Hungry Hollow mb. Most bryozoa are difficult to identify and require thin sectioning for positive I.D. I can identify only by sight. This specimen is 40mm high and 35mm wide and rests on a slab 42mm x 60mm.

Photo title: Bryozoan

Taxa present: Fenestella arkonensis

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A small colony showing the nature of the cups. The specimen measures 51mm x 39mm.

Photo title: Colonial Coral

Taxa present: Eridophyllum subcaespitosum

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This large colony was attached to the hardground uppermost surface of the Encrinal limestone just below the coral zone. The size of this coral colony measures 9in. x 9in.

Photo title: Colony Coral

Taxa present: Eridophyllum archiaci

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This bryozoa has a distinctive branching pattern. Not rare in the formation but hard to find large specimens as most are fragmented. These small slabs measure about 30mm in diameter.

Photo title: Bryozoan

Taxa present: Taeniopora exigua

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A common brachiopod found in the formation. The smaller measures 29mm x 29mm and the larger 32mm x 31mm.

Photo title: Brachiopod

Taxa present: Atrypa reticularis

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Most specimens of this brachiopod are somewhat flattened. Plump specimens are rare. The bottom row specimens in the photo each measure 31mm x 23mm. The top one measures 19mm wide and 13mm thick.

Photo title: Brachiopod

Taxa present: Callipleura nobilis

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A common brachiopod found in the formation. The smaller measures 16mm x 16mm and the larger 23mm x 18mm.

Photo title: Brachiopod

Taxa present: Athyris spiriferoides

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