(BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 1974) Kovacs-Endrody, E.
Seeds are commonly known elements of
Glossopteris floras. The connection of these seeds to
any definite elements in the floras and their
systematic position with it has always been uncertain,
and they are usually referred to as a group
"incertae sedis". Several of these seeds have been
described and placed in the genera Cardiocarpus
Brongniart, Cordiocarpus Geinitz and Samaropsis
Goeppert, specially erected for them. Arber (1905, p .
206) noticed the common occurrence of seeds with
Glossopteris leaves, and refers to them without any
further conclusion as "A few seeds .. . in association
with fronds of Glossopteris broumiana. The seeds are
possibly referable to Cardiocarpus".