''Caytonanthus'' is an extinct genus of

seed fern A seed is an Plant embryogenesis, embryonic plant enclosed in a testa (botany), protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, includ ...

Description

''Caytonanthus'' is the polliniferous organ-genus of the Caytoniales, and it is often found along ''

Sagenopteris ''Sagenopteris'' is a genus of extinct seed ferns from the Triassic to late Early Cretaceous.

'' and '' Caytonia''. ''Caytonanthus'' remains have been found in Greenland, UK, Hungary Russia, Poland, India, Antarctica and Argentina. ''Caytonanthus'' has simple or multiple orders of branches arrayed along axes, each terminal branch bears one or many synangia, each composed by four, partially fused, pollen sacs.

References

Pteridospermatophyta Triassic plants Jurassic plants Cretaceous plants Prehistoric plant genera Triassic first appearances Cretaceous extinctions {{jurassic-plant-stub