Systema naturæ - nature Universum - universe see [unranked] Mundus Plinius naturalia - natural bodies Regnum Lapideum - mineral kingdom Class Fossilia nom. inval. - Lapides aggregati Order Petrificata - fossils Genus Ornitholithus nom. inval. - fossil birds Avis petrifacta nom. inval. see Ornitholithus totalis, certi vel incerti generis nom. inval.