- †Mediospirifer †Megalomoidea †Megamyonia †Megamyonia
unicostata †
Megastrophia †
Megastrophia profunda †Megistocrinus †Megistocrinus
pernodosus †Melocrinites...
- †Megalomphala cr****a †Megalomus †Megalomus
canadensis †
Megastrophia †
Megastrophia concava †
Megastrophia profunda †Megistocrinus †Megistocrinus
expansus †Melocrinites...
-
finksi †
Megastrophia †
Megastrophia concava †
Megastrophia hemisphaerica †
Megastrophia hemispherica †
Megastrophia hemisphericus †
Megastrophia profunda...
-
locality for
species †Mediospirifer †Mediospirifer
audaculus †
Megastrophia †
Megastrophia concava †Meristella †Mesocoelia †Mesocoelia
obstipisutura †Mesocoelia...
- †Megalaspidella –
tentative report †Megalaspides †
Megastrophia †
Megastrophia iddingsi †
Megastrophia transitans †Megistaspis †Meristella †Meristella robertsensis...
-
Longispina mucronatus (Hall, 1843) •
Mediospiriter audaculus (Conrad, 1842) •
Megastrophia concava (Hall, 1857) •
Mucrospirifer consobrinus (D’Obrigny 1850) • Mucrospirifer...
- member. Also
found in the
Alpena Limestone and
Gravel Point Formation.
Megastrophia M.
gibbosa Four Mile Dam,
Thunder Bay River,
Alpena County, Michigan...
- mm)
complete brachial valve, and a few
valve fragments". A lingulid. ?
Megastrophia ?M. sp.
Lowther Island reef R-4,
Facies 2 (locality R-4 no. 27) A single...
-
Intrapora fragilis, I. megalopora,
Leiorhynchus mysia,
Leptaena boyaca,
Megastrophia hopkinsi, M. pygmaea,
Meristella wheeleri,
Nucleospira concinna, Meganteris...
- †Maryvillia †Matheria †Matheria
recta †Matthevia †Megamyonia †
Megastrophia †
Megastrophia profunda †Melocrinites †Menomonia †Merista †Meristina †Meroperix...
