Watsonella

Watsonella; Temporal range: Cambrian Stage 2, c.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca (?)
Genus:	†Watsonella; Grabau, 1900
Type species
	Watsonella crosbyi; Grabau, 1900
Accepted species
	Watsonella crosbyi Grabau, 1900;
Synonyms
	Heraultia Cobbold, 1935; Heraultipegma Pojeta and Runnegar, 1976;

Watsonella is an extinct genus of mollusc known from early (Terreneuvian) Cambrian strata. It has been hypothesized to be close to the origin of bivalves. It contains a single species, Watsonella crosbyi.

The genus is closely related to Anabarella, with which it bears many morphological similarities, including a laminar internal shell microstructure said to connect it with the early bivalves Fordilla and Pojetaia.