Pliocene - Coraline Crag
Ann.Mag.Nat.Hist. 13, p.20; as Flustra trifolium
NHML – B 1642
Sutton, Suffolk
Desc. + Figd Busk 1859, Crag Polyzoa, p. 32.
Designated as LECTOTYPE
By Brown 1952 (Tertiary Cheilostomatous Polyzoa of New Zealand, p.85)
Lagaaij 1952 Pliocene Bryozoa of the Low Countries p.255.
Coll. S.V. Wood