Friends of the UMMP Michigan Basin Specimen Database

Currently showing records 1 - 4 of 4 total

More Info	Image	Taxa	Strat Unit	Contributor
		Megistocrinus rugosus, Platyceras	Partridge Point formation	David Thompson
	Submitted on 2012-07-04 by David Thompson Location (approximate): Alpena, Alpena, MI Strat unit: Partridge Point formation Submitter notes: This view of the Tegmen of a Megistocrinus rugosus shows the base of a platyceras snail but it also has been called a fragment of an inarticulate brachiopod. In either case the majority of the attached specimen was scraped off during its many millions of years underground. What's your opinion? Photo title: Crinoid tegmen with fragment of snail(?) Taxa present: Megistocrinus rugosus, Platyceras View full record
		Botryocrinus thomasi	Partridge Point formation	David Clark
	Submitted on 2014-05-16 by David Clark Location (approximate): Alpena, Alpena, MI Strat unit: Partridge Point formation Submitter notes: A small calyx with interesting ornimentation from Partridge Point Photo title: Botryocrinus thomasi calyx Taxa present: Botryocrinus thomasi View full record
		Placoblastus obovatus	Partridge Point formation	Mary Ann Szwabowski
	Submitted on 2021-02-17 by Mary Ann Szwabowski Location (approximate): Alpena, Alpena, MI Strat unit: Partridge Point formation Submitter notes: None Photo title: Blastoid Taxa present: Placoblastus obovatus View full record
		Hyperoblastus , Hetroschisma , Nucleocrinus	Partridge Point formation	Mary Ann Szwabowski
	Submitted on 2021-09-22 by Mary Ann Szwabowski Location (approximate): Alpena, Alpena, MI Strat unit: Partridge Point formation Submitter notes: None Photo title: Blastoids Taxa present: Hyperoblastus , Hetroschisma , Nucleocrinus View full record