An interesting Late Cretaceous calcareous alga from Guatemala
Jesse Harlan Johnson, and Kenji Konishi
Pycnoporidium sinuosum, n. sp., is described from the Upper Cretaceous San Cristobal formation of Guatemala. The species is the first known Late Cretaceous representative of this Late Jurassic-Cretaceous genus. The authors discuss the classification of genera of the Solenoporaceae of the late Mesozoic and suggest that the genus Pycnoporidium be excluded from the family. A suggestion is made that the genus be placed among the Siphonocladaceae of the Chlorophyceae. A probably symbiotic alga, "Girvanella cfr. tosaensis Yabe et Toyama," occurs in association with P. sinuosum.
This record provided courtesy of AGI/GeoRef.
