Friends of the UMMP Michigan Basin Specimen Database

Image	Taxa	Strat Unit	Contributor
	Echinocaris	Widder formation	Jeffrey Mackin
Submitted on 2007-10-11 by Jeffrey Mackin Location (approximate): Arkona, Lambton, ON Strat unit: Widder formation Submitter notes: Photo title: Phyllocarid Taxa present: Echinocaris View full record
	Tornoceras , Bactrites , Koenenites cooperi	Squaw Bay formation	Jeffrey Mackin
Submitted on 2007-10-11 by Jeffrey Mackin Location (approximate): Alpena, Alpena, MI Strat unit: Squaw Bay formation Submitter notes: Photo title: Cephalopods on matrix Taxa present: Tornoceras , Bactrites , Koenenites cooperi View full record