What is "uarbryichthys"

Uarbryichthys (" Uarbry Fish") is a genus of primitive teleost ray-finned fish from fossil beds near the Talbragar River Bed. The various species were lake-dwelling fish that lived during the Upper Jurassic of Australia, and are closely related to the macrosemiids. The living animal would have had a superficial resemblance to a very small porgie, or sea bream, but with a heterocercal tail fin.