Cretaceous Spanish amber: History, research and checklist of taxa

The present work is a checklist of taxa described or cited from bioinclusions preserved in Spanish amber outcrops (nine type localities). All these bioinclusions are Albian in age (ca. 110–102 Ma), except for a few from a Cenomanian outcrop. All the listed taxa are arthropods (mostly insects), with the exception of some plant parataxa and plant palynomorphs. The present checklist of taxa has been elaborated 30 years after the first bioinclusion was discovered in Spain, thus virtually it spans over 30 years of study by a Spanish team (AMBERIA) thanks to a series of national projects funded by the Spanish Ministry of Science and other public institutions as the Natural Science Museum of Álava (Provincial Council of Álava), and the Government of Cantabria together with the semi-public enterprise EL SOPLAO S.L. The list comprises 7 classes (or similar rank), 24 orders (or similar rank), 101 families, 169 genera and 186 species (including the plant parataxa). Eight families, 104 genera (implicating a total of 104 type species) and 184 species were described based on 184 holotypes from Spanish amber. We provide all the relevant data for each taxon, focusing on new families, genera and species described based on Spanish bioinclusions, pretending to be as useful and readable as possible.