U.S. Geological Survey Professional Paper, Issue 142U.S. Government Printing Office, 1947 - Geology |
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Page 288
... protoconch marked by the abrupt however , much less radical than in the protoconchs . In cessation of the axial ribbing and the equally abrupt the Chipola form the protoconch is almost or quite as initiation of 3 symmetrically spaced ...
... protoconch marked by the abrupt however , much less radical than in the protoconchs . In cessation of the axial ribbing and the equally abrupt the Chipola form the protoconch is almost or quite as initiation of 3 symmetrically spaced ...
Page 292
... protoconch sinuous , upon the posterior fasciole and the spaces between the rather obscure ; a couple of feeble and irregular axial primaries . The Ballast Point specimens are probably wrinkles on the last quarter turn of the protoconch ...
... protoconch sinuous , upon the posterior fasciole and the spaces between the rather obscure ; a couple of feeble and irregular axial primaries . The Ballast Point specimens are probably wrinkles on the last quarter turn of the protoconch ...
Page 295
... protoconch and the adult sculpture . The best rep- resentation is in the Chipola and Shoal River faunas , the number of species running higher in the Chipola , lection formerly included under " Drillia " are recognized , the number of ...
... protoconch and the adult sculpture . The best rep- resentation is in the Chipola and Shoal River faunas , the number of species running higher in the Chipola , lection formerly included under " Drillia " are recognized , the number of ...
Page 296
Protoconch entirely smooth - Continued . External surface sculptured with more or less elevated axials and raised ... Protoconch twice coiled , axials usually 14 upon the penult . Clavatula habra Gardner , n . sp . Clavatula ...
Protoconch entirely smooth - Continued . External surface sculptured with more or less elevated axials and raised ... Protoconch twice coiled , axials usually 14 upon the penult . Clavatula habra Gardner , n . sp . Clavatula ...
Page 299
... protoconch flattened laterally tions , is similar in general characters but runs larger and relatively high . The line of demarcation between and is more closely sculptured axially . The spirals the conch and protoconch is initiated by ...
... protoconch flattened laterally tions , is similar in general characters but runs larger and relatively high . The line of demarcation between and is more closely sculptured axially . The spirals the conch and protoconch is initiated by ...
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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