Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This small, distinctive brachiopod is common in the formation. They average 11mm long and 6.5mm at the widest point.

Photo title: Brachiopod

Taxa present: Cryptonella attenuata

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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 little brachiopod has a smooth surface and is somewhat common in the formation. The largest specimen in the photo measures 13mm x 12mm.

Photo title: Brachiopod

Taxa present: Nucleospira concinna

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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 uncommon brachiopod requires a bit of searching in the formation. The photo specimens average 18mm x 16mm and are about12mm thick.

Photo title: Brachiopod

Taxa present: Parazyga hirsuta

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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 brachiopod is not common in the formation. A very fragile thin shell makes collecting whole specimens difficult. This beauty has a holdfast attached to it and nearby rests a smaller Pholidostrophia brachiopod. The larger brachiopod measures 35mm x 31mm.

Photo title: Brachiopod

Taxa present: Protoleptostrophia perplana, Pholidostrophia nacrea

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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 brachiopod with a distinctive triangular shape that is common in the formation. The largest of the 11 specimens in the photo measures 11mm x 7mm and is 9.5mm high. The smallest is 4mm x 5.5mm and 4mm high.

Photo title: Brachiopod

Taxa present: Cyrtina coultisorum

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This small brachiopod is rare in the formation except in certain horizons. The average size in the photo is 13mm x 8mm tall.

Photo title: Brachiopod

Taxa present: Cyrtina arkonensis

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This un-described plant material can occur throughout the exposed Arkona Formation but is more common in certain horizons. Plump specimens are needed to show internal cell structure upon sectioning. In the photo, the widest specimen measures 25mm wide x 32mm long. The longest specimen is 42mm long x 17mm wide.

Photo title: Fossil Wood

Taxa present: Unknown sp.

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Submitted on 2008-03-30 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This website contains photos of beautifully preserved Decorocrinus crowns. This pair of partial crowns shows the nature of the ornamentation on the calyx. The pair of crowns covers an area measuring 42mm x 38mm.

Photo title: Partial Crinoid Crowns

Taxa present: Decorocrinus arkonensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A typical fish plate from this formation. This one is on a concretion. Most fish material is fragmentary. This specimen measures 83mm X 62mm.

Photo title: Armored Fish Plate

Taxa present: Protitanichthys cf. rockportensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Many dental elements are classified under the name 'Ptychodont'. I assume that this specimen belongs to this genus. The specimen measures 48mm X 48mm.

Photo title: Armored Fish Dental Element

Taxa present: Protitanichthys sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Dental elements are uncommon in the Arkona formation. This 'Ptychodont' lower jaw measures 90mm in length and 25mm at the thickest point.

Photo title: Armored Fish Dental Element

Taxa present: Protitanichthys sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: These are the only fragments of this genus from the Arkona formation that I have collected. They are very rare. The largest plate measures 27mm X 21mm.

Photo title: Armored Fish Plates

Taxa present: Holonema sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: This branching tetracoral is very common in the H.H. member but is usually found in pieces. It was reconstructed. A specimen of Thamnoptychis(Trachypora) branches within the Eridophyllum. The specimen measures 75mm X 76mm. The Thamnoptychis is 42mm long.

Photo title: Branching Coral

Taxa present: Eridophyllum subcaespitosum, Thamnoptychis elegantula

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: An extremely rare find in the H.H. member This is the only specimen we have seen. Collected by Richard Barnard. Dime for size.

Photo title: Colony Coral

Taxa present: Pleurodictyum insigne

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Bottom View: An extremely rare find in the H.H. member This is the only specimen we have seen. Collected by Richard Barnard. Dime for size.

Photo title: Colony Coral

Taxa present: Pleurodictyum insigne

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Material of this sort(thin film) is difficult to collect in the soft shales. I believe this is a lateral plate of the creature's carapace. It measures 102mm long X 44mm wide

Photo title: Phyllocarid

Taxa present: Rhinocaris sp.

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: These gastrointestinal mandibles are very rare in the Arkona formation as are any parts of this animal. It measures 16mm in length.

Photo title: Phyllocarid Mandibles

Taxa present: Echinocaris punctata

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Top view: This is a rare occurance of a brachiopod totally encrusted with a branching Bryozoan. It may well have been caused by a reworked environment. The specimen measures 52mm in length and 19mm at the widest point.

Photo title: Bryozoan Encrusted Brachiopod

Taxa present: Leptotrypella quadrangularis, Mucrospirifer arkonensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Bottom view: This is a rare occurance of a brachiopod totally encrusted with a branching Bryozoan. It may well have been caused by a reworked environment. The specimen measures 52mm in length and 19mm at the widest point.

Photo title: Bryozoan Encrusted Brachiopod

Taxa present: Leptotrypella quadrangularis, Mucrospirifer arkonensis

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Submitted on 2008-11-06 by Mike Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes: A common fossil in the Widder formation. Although these are nice plump specimens, most are not. The largest specimen of the four measures 28mm X 25mm. (Formerly known as Leiorhynchus)

Photo title: Brachiopod

Taxa present: Eumetabolotoechia cf. multicostum

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