Caytonanthus is an extinct genus of seed ferns.

Description

Caytonanthus is the polliniferous organ-genus of the Caytoniales, and it is often found along Sagenopteris and Caytonia. Caytonanthus remains have been found in Greenland, UK, Hungary Russia, Poland, India, Antarctica and Argentina.[1] 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.[1]

References

  1. ^ a b Elgorriaga, A.; Escapa, I. H.; Cúneo, R. (2019). "Southern Hemisphere Caytoniales: vegetative and reproductive remains from the Lonco Trapial Formation (Lower Jurassic), Patagonia". Journal of Systematic Palaeontology. 17 (17): 1257–1275. doi:10.1080/14772019.2018.1535456. S2CID 92287804.


Allikas: https://en.wikipedia.org/wiki/Caytonanthus
No tags for this post.