U.S. Geological Survey Professional Paper, Issue 142U.S. Government Printing Office, 1947 - Geology |
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Page 5
... Conrad proteracuta Gard- ner , n . sp.- linifera chipolana Dall ... P cpr C a a C ? p ? p ? p ? r pa a a p r proteracuta dys- takta Gardner , n . subsp . p r r PPP proteracuta leita Gardner , n.subsp . P P a a a p C proteracuta diame ...
... Conrad proteracuta Gard- ner , n . sp.- linifera chipolana Dall ... P cpr C a a C ? p ? p ? p ? r pa a a p r proteracuta dys- takta Gardner , n . subsp . p r r PPP proteracuta leita Gardner , n.subsp . P P a a a p C proteracuta diame ...
Page 12
... ( Conrad ) Plate II , Figures 13-16 . 1832. Nucula acuta Conrad , American marine conchology , p . 32 , pl . 6 , fig . 3 . Not Nucula acuta Sowerby , Geol . Soc . London Trans . , 2d ser . , vol . 5 , pl . 39 , fig . 5 , 1837 . 1845 ...
... ( Conrad ) Plate II , Figures 13-16 . 1832. Nucula acuta Conrad , American marine conchology , p . 32 , pl . 6 , fig . 3 . Not Nucula acuta Sowerby , Geol . Soc . London Trans . , 2d ser . , vol . 5 , pl . 39 , fig . 5 , 1837 . 1845 ...
Page 13
... Conrad . It is quite possibly the ancestor of Conrad's species and resembles its descendant in the range of varia- tion . It is , however , constantly smaller than Leda acuta , more delicate , and as a rule relatively higher . The few ...
... Conrad . It is quite possibly the ancestor of Conrad's species and resembles its descendant in the range of varia- tion . It is , however , constantly smaller than Leda acuta , more delicate , and as a rule relatively higher . The few ...
Page 25
... Conrad . ( Cretaceous mesially sulcate. posterior keel , which is produced backward beyond the posterior extremity of ... Conrad 1875. Plagiarca Conrad . Kerr , Rept. The type form of this group is tolerably regular and seldom ...
... Conrad . ( Cretaceous mesially sulcate. posterior keel , which is produced backward beyond the posterior extremity of ... Conrad 1875. Plagiarca Conrad . Kerr , Rept. The type form of this group is tolerably regular and seldom ...
Page 26
... Conrad . Kerr , Rept . Geol . Survey North Carolina , vol . 1 , app . A , p . 4 . = Calloarca Dall and authors ... Conrad's clearly defined Plagiarca . Conrad defines this section as follows : Shell with a straight hinge margin ...
... Conrad . Kerr , Rept . Geol . Survey North Carolina , vol . 1 , app . A , p . 4 . = Calloarca Dall and authors ... Conrad's clearly defined Plagiarca . Conrad defines this section as follows : Shell with a straight hinge margin ...
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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