Dettmann ( 1986 ) has remarked that the spores of the extinct genus " Cyatheacidites " correspond very well with living " Lophosoria ".
2.
The preservation of the leaves and spores was so good that Cantrill could identify the species, and described them by the name of " Lophosoria cupulata"
3.
A . Rojas has also been described in Costa Rica and Panama ( Rojas-Alvarado 1996, it was described as " Lophosoria quesadae " species ).
4.
The distribution of the " Cyatheacidites " has been used to infer that " Lophosoria " was located in the southern part of Gondwana during the Early Cretaceous Period, and then migrated to Australia and South America ( Dettmann 1986 ).
5.
D . J . Cantrill ( published as " Lophosoria cupulatus " ) with the genus change, as he considered " Lophosoria quadripinnata " ( J . F . Gmel . ) C . Chr . was the living species more closely related to the species found.
6.
D . J . Cantrill ( published as " Lophosoria cupulatus " ) with the genus change, as he considered " Lophosoria quadripinnata " ( J . F . Gmel . ) C . Chr . was the living species more closely related to the species found.
7.
On the other hand, ultrastructural studies ( using scanning electron microscopy ) of the spores ( Gastony y Tyron 1976 ) and recent studies of gametophyte development ( P�rez-Garc�a " et al . " 1995 ) have concluded that " Lophosoria " differs significantly from the characteristics of other tree ferns, so their relationship to the others remains unknown.
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