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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Hyperoblastus sp. |
Alpena formation |
Alex Fabian |
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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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Heteroschisma sp. |
Alpena formation |
Stan Hyne |
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Submitted on 2010-11-26 by Stan Hyne
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: A group of small Heteroschisma blastoids probably from the Genshaw member. The largest specimen measures 9.25mm tall and 7.1mm in diameter, The smallest is 4.7mm x 3.5mm in diameter.
Photo title: BLASTOID
Taxa present: Heteroschisma sp.
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Unidentified sp. |
Alpena formation |
Scott Vergiels |
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Submitted on 2010-11-27 by Scott Vergiels
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: The rarest of the rare, A Devonian cyclocystoid. This Unidentified specimen measures 33mm in diameter. Found in the reef flank beds.
Photo title: Cyclocystoid
Taxa present: Unidentified sp.
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Megistocrinus sphaeralis |
Alpena formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: Photo 3 of 3 side view 1-5/8 inches (41mm) tall.
Photo title: CRINOID CALYX
Taxa present: Megistocrinus sphaeralis
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Megistocrinus sphaeralis |
Alpena formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: Photo 2 of 3, tegmen (top) view 1-3/4' (45mm) diameter.
Photo title: CRINOID CALYX
Taxa present: Megistocrinus sphaeralis
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Megistocrinus sphaeralis |
Alpena formation |
Mike Palescuk |
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Submitted on 2010-12-28 by Mike Palescuk
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: Photo 1 of 3, Basal view, 44mm (1-3/4') wide. More prominent dorsal cup nodes than M. regularis.
Photo title: CRINOID CALYX
Taxa present: Megistocrinus sphaeralis
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Pentamerella pericosta |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2011-01-26 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 1.1 cm across.
Photo title: Brachiopod - View #1
Taxa present: Pentamerella pericosta
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Pentamerella pericosta |
Four Mile Dam formation |
ummp invertebrate paleontology |
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Submitted on 2011-01-26 by ummp invertebrate paleontology
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: This specimen is 1.1 cm across.
Photo title: Brachiopod - View #2
Taxa present: Pentamerella pericosta
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Pithocrinus cooperi, Platyceras rarispinium |
Alpena formation |
David Thompson |
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Submitted on 2011-05-03 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This view is directly onto the tegmen showing the position of the gastropod and remaining arm bases.
Photo title: Pithocrinus cooperi & gastropod
Taxa present: Pithocrinus cooperi, Platyceras rarispinium
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Pithocrinus cooperi, Platyceras rarispinum |
Alpena formation |
David Thompson |
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Submitted on 2011-05-03 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This third view shows the unusual plate structure of this crinoid calyx with the gastropod visible on top.
Photo title: Third view of unusual crinoid & gastropod
Taxa present: Pithocrinus cooperi, Platyceras rarispinum
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Aorocrinus cassedayi |
Alpena formation |
David Thompson |
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Submitted on 2011-05-03 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This view shows the arms and calyx of this rather rare crinoid. There is a frond of Bryozoan draped over some of the arms which show the flattened tips of the arms
Photo title: Complete crown of unusual crinoid
Taxa present: Aorocrinus cassedayi
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Aorocrinus cassedayi |
Alpena formation |
David Thompson |
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Submitted on 2011-05-03 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This view shows the 3-D effect of the multiple arms folding over the top of the crown.
Photo title: View of arms folded over tegmen
Taxa present: Aorocrinus cassedayi
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Aorocrinus cassedayi |
Alpena formation |
David Thompson |
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Submitted on 2011-05-03 by David Thompson
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This view shows the stem attachment and detail of the calyx ornamentation. The crinoid crown is 2.6 cm high by 2.9 cm at the widest point. The calyx is 1.2 cm thick in this view
Photo title: Third view of crinoid crown
Taxa present: Aorocrinus cassedayi
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Pithocrinus cooperi |
Alpena formation |
Joseph Koniecki |
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Submitted on 2012-07-07 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Alpena formation
Submitter notes: This specimen is 5 cm in diameter.
Photo title: Crinoid calyx
Taxa present: Pithocrinus cooperi
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Dolatocrinus stellifer |
Four Mile Dam formation |
Joseph Koniecki |
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Submitted on 2012-01-11 by Joseph Koniecki
Location (approximate): Alpena, Alpena, MI
Strat unit: Four Mile Dam formation
Submitter notes: The picture is a view of cup and tegmen of the same specimen. The calyx is 3.5 cm across.
Photo title: Crinoid calyx
Taxa present: Dolatocrinus stellifer
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