Williamsonia

Williamsonia (dragonfly)

Williamsonia is a genus of small dragonflies in the family Corduliidae. They are commonly known as Boghaunters. Unlike other genera of Emerald dragonflies, they have dark eyes and non-metallic bodies.The genus consists of only two species:...

 is also a genus of corduliid

Corduliidae

The insect family Corduliidae contains the emerald dragonflies or green-eyed skimmers. These dragonflies are usually black or dark brown with areas of metallic green or yellow, and most of them have large, emerald-green eyes...

 dragonflies

Williamsonia is a fossil

Fossil

Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

 genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of Bennettitales

Bennettitales

Bennettitales is an extinct order of seed plants that first appeared in the Triassic period and became extinct toward the end of the Cretaceous...

, an extinct group of seed plants

Spermatophyte

The spermatophytes comprise those plants that produce seeds. They are a subset of the embryophytes or land plants...

. The plants looked a bit like a cycad

Cycad

Cycads are seed plants typically characterized by a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves. They usually have pinnate leaves. The individual plants are either all male or all female . Cycads vary in size from having a trunk that is only a few centimeters...

, with slender trunks up to two meters tall topped with a crown of leaves.

The genus is used for fossil cones containing ovule

Ovule

Ovule means "small egg". In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integument forming its outer layer, the nucellus , and the megaspore-derived female gametophyte in its center...

s, from which seeds

SEEDS

SEEDS is a voluntary organisation registered under the Societies Act of India....

would have later developed. The cones are round and include up to 50 seeds packed in among the cone scales.