Class Id resinite from Canada: A new sub-class containing succinic acid

► Resinites from three distinct deposits in Canada were studied. ► Samples were analysed using Py-GC-MS and FTIR. ► The resinites have enantio polylabdanoid matrices incorporating succinic acid. ► There is evidence of partial esterification of ozol with succinic acid. ► A new sub-category of Class Id resinites was designated.