Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Like the genus Dolatocrinus, Megistocrinus has great plate ornamentation variability which can make classification to the species level difficult. There are probably only 2 or 3 species in the Hungry Hollow member. Loose plates of Megistocrinus are common in the formation and even partial specimens should be collected due to the rarity of whole calyxes. An inflated nearly perfect specimen of M. rugosus that in itself, is rare for the Hungry Hollow member. This specimen is 30mm in diameter and 24mm high. This photo shows the bottom view.

Photo title: Crinoid Calyx

Taxa present: Megistocrinus rugosus

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: The Hungry Hollow member coral zone was a high energy environment fragmenting many crinoids. Crinoid plates and stem fragments are common. Complete calyxes are very rare and partial or whole crowns are exceedingly rare! This cladid crinoid is the most common in the formation, however, all complete calyxes are considered rare. The specimen is 17mm in height and approximately 8.5mm wide.

Photo title: Partial Crinoid Crown

Taxa present: Synbathocrinus sp.

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This specimen, like many crinoids in the Hungry Hollow member, needs revision. Deltacrinus is used here until it’s placement can be determined. Deltacrinus (a disparid), and Synbathocrinus (a cladid), are the most abundant crinoids in the formation. This specimen is 14mm wide and 40mm high including the stem and rests on matrix measuring 60 X 31mm.

Photo title: Partial Crinoid Crown

Taxa present: Deltacrinus sp.

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A very rare crinoid also found in the Hamilton of New York State. The robust specimen measures 9mm in diameter and 9mm high. The other is 7mm in diameter and 10mm high.

Photo title: Crinoid Calyx

Taxa present: Cyttarocrinus jewetti

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This crinoid was listed as Botryocrinus crassus in the 1958 Checklist before George McIntosh placed it in the genus Nuxocrinus. The three specimens shown range from 6-8.5mm in height and 6-7.5mm in diameter.

Photo title: Crinoid Calyx

Taxa present: Nuxocrinus crassus

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This camerate crinoid is one of only a few known specimens from the Hungry Hollow member. It measures 44mm in diameter including the arm segments and 21mm high. The photo shows the tegmen(top) view.

Photo title: Crinoid Calyx

Taxa present: Gennaeocrinus kentuckiensis

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This camerate crinoid is one of only a few known specimens from the Hungry Hollow member. It measures 44mm in diameter including the arm segments and 21mm high. The photo shows the side view.

Photo title: Crinoid Calyx

Taxa present: Gennaeocrinus kentuckiensis

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Submitted on 2008-03-02 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This camerate crinoid is one of only a few known specimens from the Hungry Hollow member. It measures 44mm in diameter including the arm segments and 21mm high. The photo shows the bottom view.

Photo title: Crinoid Calyx

Taxa present: Gennaeocrinus kentuckiensis

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Submitted on 2008-03-12 by Stan Hyne

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A nice specimen measuring 34mm long x 23mm wide.

Photo title: Trilobite

Taxa present: Basidechenella rowi arkonensis

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Submitted on 2008-03-12 by Stan Hyne

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: A nice trilobite measuring 33mm x 20mm.

Photo title: Trilobite

Taxa present: Greenops widderensis

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Submitted on 2008-03-15 by Kara Tecco

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This coral measures 113mm x 75mm

Photo title: Colony Coral

Taxa present: Alveolites goldfussi

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Submitted on 2008-03-15 by Kara Tecco

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Four specimens, the largest measuring 46mm x 18mm.

Photo title: Rugose Coral

Taxa present: Eridophyllum subcaespitosum

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Submitted on 2008-03-15 by Kara Tecco

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A single small worm tube attached to a colony coral.

Photo title: Annelid attached to a Coral

Taxa present: Spirorbis sp., Platyaxum frondosum

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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: Widder formation

Submitter notes: An example of the more typical preservation of ammonites in the Widder formation. The ammonite is 2.2 cm across.

Photo title: Ammonite

Taxa present: Tornoceras uniangulare widderi

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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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