12 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
Reptescharellina disparilis Gabb and Horn, 1862. See Micropora coriacea. 
Reticulipora dieliotoma Gabb and Horn, 1862. See Lekythionia dichotoma. 
Semteschara tubulata Gabb and Horn, 1862. See Smittina tubulata. 
Tubulipora proboscidea Lonsdale, 1845. Probably Mecynoecia proboscidea. 
Vmcularia ( ?) insolita De Gregorio, 1890. Not recognizable. 
GEOLOGIC TABLES OF MESOZOIC AND CENOZOIC FORMATIONS. 
The following tables are introduced for convenience of reference in the location 
of the various formational names employed in this monograph. 
Table showing relations of Early Tertiary formations of Atlantic and Gulf States. 
Series. 
Group. 
North 
Carolina. 
South 
Carolina. 
East 
Georgia. 
West 
Georgia. 
Florida. 
Alabama. 
Mississippi. 
Oligocene. 
Jacksonian, j Vicksburgian. 
(Absent) 
(Absent) 
(Absent) 
Vicksburg 
group (un- 
ci i ff e r e n- 
tiated). 
Marianna 
limestone. 
Marianna lime- 
stone (with 
G lend on lime- 
stonemember.) 
Red Bluff clay. 
Byram marl. 
Marianna lime- 
stone (with 
Glendon lime- 
stone and Mint 
Spring calcare- 
ous marl mem- 
ber). 
Red Bluff clay. 
Eocene. 
Castle Hayne 
limestone. 
Cooper marl, 
Barnwell 
formation. 
Barnwell 
formation. 
Ocala lime- 
stone (Tiv- 
ola tongue 
at base). 
Ocala lime- 
stone. 
Ocala limestone 
(east of Tom- 
bigbee river). 
Jackson forma- 
tion (west of 
Tombigbee riv- 
er). 
Jackson forma- 
tion (with Ya- 
zoo clay and 
Moodys marl 
members). 
Wilcoxian. Claibornian. 
Trent marl . . 
McBean for- 
mation. 
McBean for- 
mation. 
Undifferenti- 
ated. 
(Buried) 
Gosport sand, 
Lisbon forma- 
tion, 
Tallahatta buhr- 
stone. 
Yegua formation, 
Lisbon forma- 
tion, 
Tallahatta buhr- 
stone. 
(Absent) 
Congaree 
shales, 
Williamsburg 
formation. 
(Probably 
overlapped). 
Wilcox forma- 
tion. 
(Buried) 
Hatchetigbee for- 
mation, Bashi 
formation, Tus- 
cahome forma- 
tion, Nanafalia 
formation, 
Grenada forma- 
tion, 
Holly Spring 
sand 
Ackerman forma- 
tion. 
Midwayan. 
(Absent) 
Black Mingo 
formation. 
(Probably 
overlapped). 
Midway for- 
mation. 
(Buried) 
Naheola forma- 
tion, 
Sucharnachee 
clay. 
Clayton lime- 
stone. 
Tippahsandstone. 
Porters Creek 
clay. 
Clayton lime- 
stone absent or 
replaced b y 
sand. 
The above table shows the general relations of the early Tertiary formations 
of North America, most of which have yielded bryozoan remains. The following 
table gives a summary of the principal European and South American post Paleo- 
zoic divisions. An index of these divisions is also introduced for the convenience 
of the student. 
