a living fossil or so-called 'green dinosaur'; genus or subfamily of primitive nut-bearing trees thought to have died out 50 million years ago; a single specimen found in 1994 on Mount Bartle Frere in eastern Australia; not yet officially named • Syn: Bartle Frere, green dinosaur • Hypernyms: dicot genus, magnoliopsid genus • Member Holonyms: Proteaceae, family Proteaceae, protea family