Fig. 5
Palaeogeographic maps showing the distribution of Spirematospermum from the Late Cretaceous to the Pliocene (a−f), based on the Cretaceous occurrences (Goth 1986; Knobloch and Mai 1986; Friis 1988) and the compilation of the Cenozoic occurrences (Fischer et al. 2009). 
– S. chandlerae; 
− S. friederichii; 
− S. sp. from Austria; 
− S. sp. from USA; 
− S. wetzleri
