Are Burretiokentia and Rebutia both types of plants?
Burretiokentia Burretiokentia is a genus of palms (Arecaceae) endemic to New Caledonia containing five species. The relationships between Burretiokentia and some other genera of the tribe Basseliniinae including "Physokentia" and the New Caledonia endemic "Cyphophoenix" are not clear.
Requienia (bivalve) Requienia is an extinct genus of fossil saltwater clam, a marine bivalve molluscs in the order Hippuritoida, family Requieniidae. These rudists lived in the Cretaceous period, from the Valanginian age (136.4–140.2) to the Campanian age (70.6–83.5 mya). They were stationary intermediate-level suspension feeders.