Erdtmanispermum K.R.Pedersen, P.R.Crane et E.M.Friis
Plant Fossil Names Registry Number: PFN001903
Act LSID: urn:lsid:plantfossilnames.org:act:1903
Page of description: 286
Erdtmanispermum balticum K.R.Pedersen, P.R.Crane et E.M.Friis
Seeds ovoid to ellipsoid in longitudinal outline, with a distinctly pointed or elongated micropylar projection and rounded to weakly triangular in transverse section. Nucellus weakly cutinised, surrounded by a thin inner integument and a sclerified outer envelope. Megaspore membrane well developed, resistant to maceration, with a distinct granular structure. Pollen grains in micropyle of the Eucommiidites-type
In honour of Gunnar Erdtman who first drew attention to the Eucommiidites pollen grains.