Gervillia
Species
Gervillia? montanaensis Meek, 1873
Occurrence: Piper (middle), Rich Member of Twin Creek Limestone; unit 10 of Sundance Formation at Lower Slide Lake
Includes Gervillia sparsilirata
Reference: Imlay, 1964; Imlay, 1967
![Specimen Photo](GervilliaMontanaensis.jpg)
Gervillia? montanaensis
Photograph from Imlay, 1967