Wikipedia
Fieldia is a genus of worm known from the Cambrian Burgess Shale, and assigned to the Priapulids. It was originally interpreted as an arthropod; its trunk bears a dense covering of spines, and its proboscis is small. It fed on sea-floor mud, evidenced by the frequent presence of sediments preserved in its gut.
Along with the other Cambrian priapulids Ottoia, Selkirkia, Louisella, Ancalagon, Scolecofurca, and Lecythioscopa, the organism was originally classified into a clade termed the archaeopriapulida, a stem group to the Priapulids proper. However, the morphological similarity of these organisms to their modern cousins is remarkable, especially for the Burgess Shale, and their similarity to the modern genus Maccabeus suggests that they are in the Seticoronaria stem group, and thus are true crown-group priapulids. A phylogenetic analysis does not provide a great deal of resolution to the relationships between these basal worms.
Fieldia australis, usually referred to as fieldia is a small climbing plant or epiphyte found in eastern Australian rainforests. Commonly seen in the cooler rainforests at higher altitudes. It also grows in the warmer rainforests with a high humidity. The plant uses adventitious roots to grip hold of tree trunks, mossy rocks or tree ferns.
Leaves are 3 to 7 cm long 1 to 3 cm wide, reverse ovate or elliptical in shape with toothed edges. The leaf stem is around 8 mm long. Flowering occurs mostly in summer or autumn, being an attractive, relatively long thin white flower. The fruit is a whitish berry with some purple markings. Egg-shaped or oblong, 1 to 3 cm long, and around 11 mm in diameter.
Fieldia may refer to a number of different genera in various scientific fields: