Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare and sought after stemless blastoid that evolved to lay on the substrate. There is only one species worldwide for the genus Eleutherocrinus. This view shows the long ambulacra of this blastoid's theca. The specimen on the left measures 14mm X 9mm. The middle specimen measures 17mm X 12mm, and the largest specimen on the right measures 19mm X 14.5mm.

Photo title: BLASTOID

Taxa present: Eleutherocrinus cassedayi

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare and sought after stemless blastoid that evolved to lay on the substrate. There is only one species worldwide for the genus Eleutherocrinus. This view shows the evolved 'flat' plates of this blastoid's theca. The specimen on the left measures 14mm X 9mm. The middle specimen measures 17mm X 12mm, and the largest specimen on the right measures 19mm X 14.5mm.

Photo title: BLASTOID

Taxa present: Eleutherocrinus cassedayi

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare and sought after stemless blastoid that evolved to lay on the substrate. There is only one species worldwide for the genus Eleutherocrinus. This side view shows the living position of this blastoid. The specimen on the left measures 14mm X 9mm and the larger specimen on the right measures 19mm X 14.5mm.

Photo title: BLASTOID

Taxa present: Eleutherocrinus cassedayi

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare and sought after stemless blastoid that evolved to lay on the substrate. There is only one species worldwide for the genus Eleutherocrinus. This is a basal view, in the living position, of this blastoid's theca. The specimen on the left measures 14mm X 9mm. The middle specimen measures 17mm X 12mm, and the largest specimen on the right measures 19mm X 14.5mm.

Photo title: BLASTOID

Taxa present: Eleutherocrinus cassedayi

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: A rare and sought after stemless blastoid that evolved to lay on the substrate. There is only one species worldwide for the genus Eleutherocrinus. This is an oral view, in the living position, showing the one shortened ambulacra of this blastoid's theca. The specimen on the left measures 14mm X 9mm. The middle specimen measures 17mm X 12mm, and the largest specimen on the right measures 19mm X 14.5mm.

Photo title: BLASTOID

Taxa present: Eleutherocrinus cassedayi

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A complete specimen that has it's arms tightly clenched. The specimen is approximately 33mm in diameter.

Photo title: STARFISH

Taxa present: Devonaster triradiatus

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Another view of a complete specimen that has it's arms tightly clenched. The specimen is approximately 33mm in diameter.

Photo title: STARFISH

Taxa present: Devonaster triradiatus

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A beautiful specimen measuring 35mm in diameter on a slab that is 76mm X 45mm. With Tentaculites strewn across the matrix

Photo title: STARFISH

Taxa present: Devonaster triradiatus, Tentaculites attenuatus

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Submitted on 2010-11-04 by John Topor

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: A beautiful specimen measuring 47mm in diameter on a slab that is 87mm X 105mm.

Photo title: STARFISH

Taxa present: Devonaster triradiatus

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Submitted on 2010-11-04 by John Topor

Location (approximate): Thedford, Lambton, ON

Strat unit: Widder formation

Submitter notes: A nice prone specimen measuring 18mm wide X 28mm long.

Photo title: TRILOBITE

Taxa present: Greenops widderensis

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Submitted on 2010-11-04 by John Topor

Location (approximate): Thedford, Lambton, ON

Strat unit: Widder formation

Submitter notes: It is not uncommon for Greenops specimens to have their pygidium tucked under. A little extra cleaning will expose what first appears to be a tail-less specimen. This trilobite is 21mm wide and is approximately 34mm long if you count the enrolled tail.

Photo title: TRILOBITE

Taxa present: Greenops widderensis

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Submitted on 2010-11-04 by John Topor

Location (approximate): Thedford, Lambton, ON

Strat unit: Widder formation

Submitter notes: It is not uncommon for Greenops specimens to have their pygidium tucked under. A little extra cleaning exposed what first appears to be a tail-less specimen. This trilobite is 21mm wide and is approximately 34mm long if you count the enrolled tail. This photo shows the exposed pygidium of the previous specimen.

Photo title: TRILOBITE

Taxa present: Greenops widderensis

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Submitted on 2010-11-04 by John Topor

Location (approximate): Thedford, Lambton, ON

Strat unit: Widder formation

Submitter notes: The cephalon is slightly pushed in on this prone specimen. It measures 17mm X 21mm.

Photo title: TRILOBITE

Taxa present: Greenops widderensis

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A side view of an excellent 'undescribed' specimen from what used to be the 'Dock Street Clay' The blastoid measures 20mm X 13mm.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: An oral view of an excellent 'undescribed' specimen from what used to be the 'Dock Street Clay' This blastoid measures 20mm X 13mm.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A basal view of an excellent 'undescribed' specimen from what used to be the 'Dock Street Clay' This blastoid measures 20mm X 13mm.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A side view of a very large, very rare, 'undescribed' blastoid collected by Bob Rutkowski. This specimen measures 31mm high and 30mm in diameter.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: An oral view of a very large, very rare, 'undescribed' blastoid collected by Bob Rutkowski. This specimen measures 31mm high and 30mm in diameter.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Alpena formation

Submitter notes: A basal view of a very large, very rare, 'undescribed' blastoid collected by Bob Rutkowski. This specimen measures 31mm high and 30mm in diameter.

Photo title: BLASTOID

Taxa present: Hyperoblastus sp.

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Submitted on 2010-11-26 by Stan Hyne

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: A very good set of teeth probably from an Echinocaris. The specimen measures 27mm long.

Photo title: PHYLLOCARID MANDIBLE

Taxa present: Echinocaris ?

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