Species: bitholus GALTON, 1971
Etymology: Latin bi, two, and Greek, tholus, "dome," as a masculine noun used in apposition, with reference to the double dome.
= Yaverlandia bitholos HOPSON, 1979 (sic)

Holotype: Museum of Isle of Wight Geology, Sandown, Isle of Wight, MIWG 1530

Locality: From the Upper Silty Bed north of the sea wall below Yaverland Battery, Sandown, Isle of Wight County, England, Southern United Kingdom.

Horizon: Wessex Formation, Wealden Group.

Biostratigraphy:

Age: Valanginian-Hauterivian Stage, Neocomian Subepoch- Barremian Stage, Lower Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: A frontal region.

Yaverlandia bitholus (modified from GALTON, 1971), Holotype: MIWG 1530.