Pteruchus Africanus on:
[Wikipedia]
[Google]
[Amazon]
''Pteruchus africanus'' is a pollen organ of a seed fern (
Pteridospermatophyta
The term Pteridospermatophyta (or "seed ferns" or "Pteridospermatopsida") is a polyphyletic group of extinct seed-bearing plants (spermatophytes). The earliest fossil evidence for plants of this type is the genus ''Elkinsia'' of the late Devonia ...
). It was first described by Hamshaw Thomas from the Umkomaas locality of South Africa.
Description
The pollen organs ''Pteruchus africanus'' differ from other species of ''Pteruchus
''Pteruchus'' is a form genus for pollen organs of the seed fern (Pteridospermatophyta family Umkomasiaceae. It was first described by Hamshaw Thomas from the Umkomaas locality of South Africa. It is associated with the seed bearing organs '' Um ...
'' in small size, and equant blade supporting the pollen sacs.
Whole plant reconstructions
''Pteruchus africanus'' may have been produced by the same plant as '' Umkomasia macleanii'' (ovulate organs) and ''Dicroidium odontopteroides
''Dicroidium odontopteroides'' was a common and widespread species of ''Dicroidium'' known from South Africa, Australia, New Zealand, South America and Antarctica. The species was first discovered in Triassic sediments of Tasmania and described ...
'' (leaves), based on cuticular similarities between these leaves and reproductive structures at the Umkomaas locality of South Africa.
References
Triassic plants Pteridospermatophyta {{triassic-plant-stub