The Reef-Coral Fauna of Carrizo Creek, Imperial County, California And Its ...
The Reef-Coral Fauna of Carrizo Creek, Imperial County, California And Its ...
Thomas Wayland Vaughan
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373 is very constantly 3.5 millimeters. Some corallitee may be smaller and some slightly larger, but 3.5 millimeters is the usual diameter. The walls between two corallites on an unweathered siuiace or in a section are stout and usually solid ; they are almost a millimeter thick . They are clearly peeudothecal. In places the corallites may be joined by very short costs; then open vertical spaces may exist be- tween the costs. None of the specimens shows the upper edge of the wall in its origina...l condition ; therefore its orna- mentation can not be described. The septa are in three complete cycles; the members of the first and second cycle fuse to the colimiella; those of the third cycle fuse to the sides of those of the second (?). (There is no way of differentiating the first from the second cycle.) They are thicker at the wall; their faces granulate. The charac- ter of the septal mai^gins could not be studied . In the best- preserved calicos there appear to be pali before both the first and second cycles of septa.
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