U.S. Geological Survey Professional Paper, Issue 142U.S. Government Printing Office, 1947 - Geology |
From inside the book
Results 1-5 of 35
Page 258
... Aperture sinuous , symmetrically inflated medially ; slightly oblique to the axis of the shell , later- ally ... view of the fossil records , Collins ventures the state- ment that " enough evidence has been assembled to indicate ...
... Aperture sinuous , symmetrically inflated medially ; slightly oblique to the axis of the shell , later- ally ... view of the fossil records , Collins ventures the state- ment that " enough evidence has been assembled to indicate ...
Page 297
... Aperture moderately long and wide , scarcely contracted at the base , forming a suggestion of a canal ... view that is in harmony with Sherborn's cita- tion of Crassispira bottae as a name of Swainson's ( Index ani- malium ...
... Aperture moderately long and wide , scarcely contracted at the base , forming a suggestion of a canal ... view that is in harmony with Sherborn's cita- tion of Crassispira bottae as a name of Swainson's ( Index ani- malium ...
Page 322
... apertural view , its spire and the medial portion of the body , not differ- breadth perceptibly increased by the ... Aperture oblique , upon the posterior fasciole , feebly protractive and usu- widening a little behind by reason of ...
... apertural view , its spire and the medial portion of the body , not differ- breadth perceptibly increased by the ... Aperture oblique , upon the posterior fasciole , feebly protractive and usu- widening a little behind by reason of ...
Page 345
... apertural view , the maximum diameter falling in with 6 or 7 beaded spirals , slightly coarser than the front of the median horizontal ; aperture almost half as secondaries , which they resemble in general character ; high as the entire ...
... apertural view , the maximum diameter falling in with 6 or 7 beaded spirals , slightly coarser than the front of the median horizontal ; aperture almost half as secondaries , which they resemble in general character ; high as the entire ...
Page 390
... aperture , 6.0 millimeters ; maximum diameter , 4.8 ponent volutions . Furthermore , there is in M. denti ... apertural view , the maximum diameter falling not far from the median horizontal ; the profile of the spire not ...
... aperture , 6.0 millimeters ; maximum diameter , 4.8 ponent volutions . Furthermore , there is in M. denti ... apertural view , the maximum diameter falling not far from the median horizontal ; the profile of the spire not ...
Other editions - View all
Common terms and phrases
acute adult altitude angulated anteriorly Apertural view arcuate axial sculpture Baileys Ferry base body whorl Calhoun County canal cardinal Chipola formation Chipola River chipolana conch Conrad constricted costals Dall denticles Dimensions dorsal margin elevated fauna feebly FIGURE flattened front Gardner genus grooves height hinge holotype incremental Inner margin labrum later whorls latitude left valve less Liberty County ligament lirae lirate lunule Maury maximum diameter mile below Baileys millimeters Miocene moderately narrow Oak Grove Oak Grove sand obliquely obscure obtuse Occurrence Okaloosa County Outer lip outline pallial line paratype penult periphery pillar Plate posterior fasciole posterior margin posteriorly prominent protoconch radial ribs right valve sharply Shell Bluff Shell small Shoal River formation sinus slender slightly smooth specimens spiral sculpture spire striated subsp suture Trans Type locality U. S. Nat umbones valve cotype varix view of holotype volutions Wagner Free Inst Walton County