Dry indehiscent single-seeded fruit formed from bicarpellary, syncarpous, inferior ovary is:

Cypsela is a dry, indehiscent, one-seeded fruit that develops from a bicarpellary, syncarpous, unilocular, inferior ovary with basal placentation.
The pericarp and the seed coat remain free from each other, and the fruit often bears a hairy pappus (persistent calyx) for dispersal.
It is the characteristic fruit of the family Asteraceae (Compositae), for example sunflower and marigold.
A berry is a fleshy, many-seeded fruit.
A cremocarp is a two-seeded schizocarpic fruit of Apiaceae (for example coriander) that splits into two mericarps.
A caryopsis is a one-seeded dry fruit of grasses formed from a monocarpellary superior ovary, in which the pericarp is fused with the seed coat.
So the fruit described is a cypsela.