14 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM, 
LIST OF MESOZOIC AND CENOZOIC FORMATION NAMES. 
Ackerman formation. Wilcoxian. 
Albian. Lower Cretaceous. 
Anversian. Miocene. 
Anisian. Middle Triassic. 
Aptian. Lower Cretaceous. 
Aquitanian. Miocene. 
Araucanian. Miocene. 
Astian (Red Crag). Pliocene. 
Auversian. Eocene. 1 
Bajocian. Middle Jurassic. 
Barnwell formation. Jacksonian. 
Barremian. Lower Cretaceous. 
Bartonian. Eocene. 
Bashi formation. Wilcoxian. 
Bathonian. Middle Jurassic. 
Black Mingo formation. Midwayan. 
Burdigalian. Miocene. 
Byram marl. Vicksburgian. 
Callovian. Upper Jurassic. 
Campanian. Upper Cretaceous. 
Carintkian. Upper Triassic. 
Casselian. Oligocene. 
Castle Hayne limestone. Jacksonian. 
Cenomanian. Upper Cretaceous. 
Ckarmouthian. Lower Jurassic. 
Ckattian. Oligocene. 
Chubutian. Lower Cretaceous. 
Clayton limestone. Midwayan. 
Coniacian. Upper Cretaceous. 
Congaree shales. Wilcoxian. 
Cooper marl. Jacksonian. 
Coralline Crag. Pliocene. 
Danian. Upper Cretaceous. 
Dinarian. Middle Triassic. 
Enterrian. Oligocene. 
Garumnian. Eocene. 
Gault. Lower Cretaceous. 
Glendon limestone member. Vicksburgian. 
Gosport sand. Claibornian. 
Great Oolite. Middle Jurassic. 
Grenada formation. Wilcoxian. 
Guaranian. Upper Cretaceous. 
Ilatchetigbee formation. Wilcoxian. 
Helvetian. Miocene. 
Hettangian. Lower Jurassic. 
Holly Spring sand. Wilcoxian. 
Inferior Oolite. Middle Jurassic. 
Jackson formation. Jacksonian. 
Juvavian. Upper Triassic. 
Kimmeridgian. Upper Jurassic. 
Ladinian. Middle Triassic. 
Landenian. Eocene. 
Langhian. Miocene. 
Latdorfian. Oligocene. 
Ligurian. Oligocene. 
Lisbon formation. Claibornian. 
I.ondinian. Eocene. 
Lower Chalk. Upper' Cretaceous. 
Lower Greensand. Lower Cretaceous. 
Ludian, Eocene. 
Lutetian. Eocene. 
Maastrichtian. Upper Cretaceous. 
Magellanian. Oligocene. 
Marianna limestone. Vicksburgian. 
McBean formation. Claibornian. 
Middle Chalk. Upper Cretaceous. 
Midway formation. Midwayan. 
Mint Spring calcareous marl member. Vicksburgian 
Montian. Eocene. 
Moodys marl member. Jacksonian. 
Naheola formation. Midwayan. 
Nanafalia formation. Wilcoxian. 
Neocomian. Lower Cretaceous. 
Norian. Upper Triassic. 
Ocala limestone. Jacksonian. 
Oxfordian. Upper Jurassic. 
Pampian. Pliocene. 
Parisian. Eocene. 
Patagonian. Miocene. 
Plaisancian. Pliocene. 
Pontian. Miocene. 
Porters Creek clay. Midwayan. 
Portlandian. Upper Jurassic. 
Post-pampian. Pleistocene. 
Priabonian. Eocene. 
Red Bluff clay. Vicksburgian. 
Red Crag. Pliocene. 
Rhaetian. Lower Jurassic. 
Rocanean. Upper Cretaceous, Eocene. 
Rupelian. Oligocene. 
Sahelian. Miocene. 
Sannoisian. Oligocene. 
Santa-cruzian. Eocene. 
Santonian. Upper Cretaceous. 
Sarmatian. Miocene. 
Scythian. Lower Triassic. 
Senonian. Upper Cretaceous. 
Sequanian. Upper Jurassic. 
Sicilian. Pliocene. 
Sinemurian. Lower Jurassic. 
Soissonian (Suessonian) . Eocene. 
Sparnacian. Eocene. 
Stampian. Oligocene. 
Sucharnachee clay. Midwayan. 
Suessonian. Eocene. 
Tallahatta buhrstone. Claibornian. 
Thanetian. Eocene. 
Tippah sandstone. Midwayan. 
Tivola tongue of Ocala limestone. Jacksonian. 
Toarcian. Lower Jurassic. 
Tongrian. Oligocene. 
Tortonian. Miocene. 
Trent marl. Claibornian. 
Turonian. Upper Cretaceous. 
Tuscahome formation. Wilcoxian. 
Tyrolian. Middle Triassic. 
Upper Chalk. Upper Cretaceous. 
Upper Greensand. Upper Cretaceous. 
Urgonian. Lower Cretaceous. 
Virglorian. Middle Triassic. 
Wealden. Lower Cretaceous. 
Werfenian. Lower Triassic. 
Wilcox formation. Wilcoxian. 
Williamsburg formation. Wilcoxian. 
Yazoo clay. Jacksonian. 
Y T egua formation. Claibornian. 
Ypresian. Eocene. 
Zanclean. Miocene. 
