. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE AMMONITE FAMILY BACULITIDAE 57. A B C Fig. 42. A. Baculites sp. from the Baculites compressus Zone, Pennington County, South Dakota. BHI4360. B-C. B. cuneatus from Elk Creek, Meade County, South Dakota. BHI4366. Two baculite specimens showing constrictions that appear to indicate old apertures. Both x 1. B. cockyensis appear in the Middle Coniacian. Ornament consists predominantly of lateral ribbing, although some variants of B. cocky ensis have distinct lateral nodes rather than ribs—the B. 'asp
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE AMMONITE FAMILY BACULITIDAE 57. A B C Fig. 42. A. Baculites sp. from the Baculites compressus Zone, Pennington County, South Dakota. BHI4360. B-C. B. cuneatus from Elk Creek, Meade County, South Dakota. BHI4366. Two baculite specimens showing constrictions that appear to indicate old apertures. Both x 1. B. cockyensis appear in the Middle Coniacian. Ornament consists predominantly of lateral ribbing, although some variants of B. cocky ensis have distinct lateral nodes rather than ribs—the B. 'asper' of previous authors. Lateral ribbing remains the dominant mode of ornament in the baculitid succession of the US Western Interior; in the Santonian, distinct ventral corrugations are initiated in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
