06976 - Top Beautiful 2.00 Inch Alethopteris sp Carboniferous Fossil Fern Gruenewaldtia "A partial skeleton of the

"A partial skeleton of the basal mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland" (PDF)

fluvial (2)

with slight restorations in the fracture zones

Etched pieces range from shiny with well-developed Neumann bands

— Les vertébrés fossiles des gisements de phosphates (Maroc – Algérie – Tunisie)

06976 - Top Beautiful 2.00 Inch Alethopteris sp Carboniferous Fossil Fern Gruenewaldtia "A partial skeleton of theAlethopteris, Sternberg 1825 Alethopteridae Alethopteridae PaleoDB taxon number: 125733 Parent taxon: Alethopteridae according to D. L. Dilcher et al. 2005 Sister taxa: none Subtaxa: Alethopteris roesserti, Alethopteris valida, Alethopteris whitneyi VIEW CLASIFICATION Environments: (59 collections), terrestrial (10), deltaic (4), fluvial (2), lagoonal restricted shallow subtidal (2), delta plain (2), mire swamp (2), "floodplain" (1), lacustrine small