Submitted on 2007-03-06 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Traverse formation

Submitter notes: Here is a colony of blastoids occuring on a small lense. The lense is composed of disarticulated blastoid brachioles and stems. This preservation is unique to the Givetian of the Great Lakes region. (aka Hyperoblastus cooperi)

Photo title: Blastoid Hyperoblastus americana (Barris, 1883)

Taxa present: Hyperoblastus americana

View full record

Submitted on 2007-03-06 by Alex Fabian

Location (approximate): Alpena, Alpena, MI

Strat unit: Traverse formation

Submitter notes: A good Specimen measuring 4 cm

Photo title: Cephalopod

Taxa present: Tornoceras uniangulare

View full record

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.

View full record

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.

View full record

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.

View full record

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.

View full record

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.

View full record

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.

View full record