Author:
Retallack,G.J.;Dilcher,D.L.
Year:
1986
Title:
Cretaceous angiosperm invasion of North America.
Reference:
Retallack,G.J. et al. (1986) Cretaceous angiosperm invasion of North America. Cretaceous Research Vol. 7 P. 227- 252
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Afropollis Afropollis USA(Atlantic Coast.Pl.) Cretaceous
Classopollis Classopollis USA(Atlantic Coast.Pl.) Early Cretaceous
Pseudofrenelopsis Pseudofrenelopsis paraceramosa USA(Atlantic Coast.Pl.) Early Cretaceous
Schizosporis Schizosporis USA(Atlantic Coast.Pl.) Cretaceous