U.S. Geological Survey Professional Paper, Issues 1951-1955U.S. Government Printing Office, 1951 |
Other editions - View all
Common terms and phrases
apertural end Arthur City axials beak body whorl broadly rounded cardinal Cenomanian chambers at periphery convex County loc Cragin Cretaceous Cristellaria Cushman and Todd Cushman Coll Cushman Lab Denton County diameter Dimensions in millimeters dorsal Eagle Ford earliest visible chamber edge view subelliptical elongate Eocene Euless Fannin County figures final chamber final face final margin Foraminifera genus Grayson County growth lines height of chambers hinge holotype inflated internal mold Israelsky Lamar County last chamber left valve Lewisville member margin of last meeting periphery mile west miles east millimeters Length Width narrow nodes Oligocene opposite end rounded Paleontology periphery of earliest Plate posterior posterodorsal Protoconch radial Research Contr right valve Robulus sp sandstone septal face shale side and edge side view subovate slightly Specimen Sample USNM strongly surface Survey Prof sutures Tarrant County Templeton member Timber Creek Type species Types.-Holotype U. S. Geol umbo unfigured paratypes Woodbine formation