Top--Graptolites from an upper Ordovician section of the upper Ordovician to lower Silurian Hanson Creek Formation, Eureka County, Nevada, a number of miles west of the western border of White Pine County, Nevada; they are latex casts of the original specimens, thus revealing actual three-dimensional morphology of the extinct colonial animal. Specimens: 4, 6, 7, 11, and 16--Climacograptus hastatus; 17--Glyptograptus n. sp.; 19--Orthograptus truncatus cf. 0. t. var. pauperatus; 21--Climacograptus tridentatus.

Bottom--Graptolites from an upper Ordovician section of the upper Ordovician to lower Silurian Hanson Creek Formation, Eureka County, Nevada, a number of miles west of the western border of White Pine County, Nevada. Both graptolites referred to the genus-species Dicellograptus complanatus; they reside on their original shale bedding planes. Photographs courtesy Rueben J. Ross and William B. N. Berry; I edited and processed the images through photoshop.

Photographs courtesy Rueben J. Ross and William B. N. Berry; I edited and processed the images through photoshop.