Geranylfarnesyl pyrophosphate is an intermediate used by organisms in the biosynthesis of sesterterpenoids.
References
Bibliography Michalak, K.; Michalak, M.; Wicha, J. (2005). "Studies Towards the Total Synthesis of Di- and Sesterterpenes with Dicyclopenta[a,d]cyclooctane Skeletons. Three-component Approach to the A/B Rings Building Block". Molecules. 10 (9): 1084–1100. doi:10.3390/10091084. ISSN 1420-3049. PMC 6147619. PMID 18007374.