Hanadirella
Hanadirella bramkampi is a species of problematic ichnofossil organism from the Lower Ordovician of the Tabuk formation located in central Saudi Arabia, and has been recognised as probably having taxonomic relationships with the phylum Arthropoda.
Hanadirella bramkampi is the type species and only species in the genus Hanadirella, making the genus monotypic.
Description
H. bramkampi represents a segmented organism which suggests an arthropod affinity due to its multiple segments which are seen in arthropods. Specimens of H. bramkampi typically show a flat, oval hat-shaped organism baring some similarities in how it looks to animals such as Yorgia from the Ediacaran, with its diameter being less than 1 mm.Because of the animals enigmatic nature and its affinity not being understood yet, its palaeoecology—along with its affinity which was discussed later—are being argued with.