Taxa described in 2003

Hjortstamia is a genus of corticioid fungi in the family Phanerochaetaceae. It was circumscribed by French mycologists Jacques Boidin and Gérard Gilles in 2003.

Troglocubazomus is a monotypic genus of hubbardiid short-tailed whipscorpions, first described by Rolando Teruel in 2003. Its single species, '''Troglocubazomus orghidani''' is distributed in Cuba.

genus of insects

The Irpicaceae are a family of mostly polypores and crust fungi in the order Polyporales.

Easonobius is a genus of centipedes in the family Henicopidae. The name honours British myriapodologist Edward Holt Eason. It was described by palaeontologist Gregory Edgecombe in 2003.

Thecofilosea is a class of unicellular testate amoebae belonging to the phylum Cercozoa. They are amoeboflagellates, organisms with flagella and pseudopodia, distinguished from other cercozoa by their scale-lacking test composed of organic material. They are closely related to the Imbricatea, a group of testate amoebae with tests composed of inorganic silica scales.

Lampadaria is a genus of flowering plants belonging to the family Gesneriaceae.

Rusavskia is a genus of lichen-forming fungi in the family Teloschistaceae. It has 12 species. It is a member of the subfamily Xanthorioideae. The thallus of Rusavskia is characterised by its foliose (leaf-like) structure with distinct and typically narrow that curve outwards.

Notocladonia is a genus of two Australasian species of lichen-forming fungi in the family Cladoniaceae. The genus was established in 2003 by Samuel Hammer to accommodate Australasian species previously misplaced in the neotropical genus Ramalea. Notocladonia species are distinguished by their spore-bearing discs (apothecia) that form at the tips of scale-like lobes or short stalks, rather than beneath the thallus as in Ramalea. Both species occur in temperate regions of southeastern Australia and New Zealand, typically growing on thin soils in open habitats.

Tuckermanella is a genus of lichen-forming fungi in the family Parmeliaceae.

Vanderwaltozyma is a genus of ascomycetous yeasts in the family Saccharomycetaceae.