that make up the collection site. Palynological content had been used to date the Ipubi Formation as Aptian-Albian (125–100.5 mya), and the amber samples were thought to be allochthonous, having swept in from nearby conifer sources. GC-MS analysis resulted in the chromatogram shown to the right, with the ferruginol peak marked in red. Additionally, 3C-CPMAS-NMR was used to further understand the sample. The terpenoids analyzed were separated into three groups: monoterpenes, sesquiterpenoids, and diterpenoids. Diterpenoids of the abietanic class were the most abundant in the amber, though they are widely present in all conifer families and therefore less useful in identifying specific contributing species. The detection of ferruginol helped limit the biological origin to the families Cupressaceae, Podocarpaceae and Cheirolepidiaceae. Further more, the absence callitrisates, kauranes and phyllocladanes excluded Cupressaceae as the source. Therefore, the possible botanical sources of the amber collected in the Ipubi Formation were identified as Podocarpaceae and Cheirolepidiaceae. The results from the amber samples are consistent with environmental conditions determined from a separate analysis of the bituminous shale. References Terpeno-phenolic compounds Diterpenes Phenanthrenes Isopropyl compounds