"Fossil Foraminifera (Nummulites) in limestone." -Thomson, 1916

Foraminifera

"Fossil Foraminifera (Nummulites) in limestone." -Thomson, 1916

"Orthoceras, upper part showing perforated chamber." -Taylor, 1904

Orthoceras

"Orthoceras, upper part showing perforated chamber." -Taylor, 1904

A curved orthoceras, common in limestone (Cyrtoceras Murchisoni).

Curved Orthoceras

A curved orthoceras, common in limestone (Cyrtoceras Murchisoni).