Thinnfeldia – a Triassic fern

(thin-fell-dee-a)

Fossil of the fern, Thinnfeldia feistmanteli.
Source: Museum Victoria

Triassic

HOW BIG IT WAS

Thinnfeldia relative size depiction as described below
This fossilised Thinnfeldia frond is 21 cm long.

The warm, seasonal climate of the early Triassic set the scene for changes to plant life. ‘Seed ferns’ like Thinnfeldia were common plants at this time, and increasingly drier conditions saw the evolution of drought-resistant plants. Plant life spread from low-lying water margins and swamps, and the dry hillsides became populated by hardy trees and shrubs.

Australia's fossil record shows that during the Triassic the dominant plants were cycads, gingkoes, conifers and ferns like Thinnfeldia.

A TRAIL THROUGH TIME

Vascular land plants appeared in the Silurian. See the traces they have left over time.

BaragwanathiaBlack coalAnglesea floraHaddon nutsBrown coal

WHERE IT WAS FOUND

map thinnfeldia

This fossil of Thinnfeldia feistmanteli was found in New South Wales.

RELATED OBJECTS

Other objects from the Triassic

LystrosaurusCoelophysisClatrotitanCladiscites