Branislav "Brana" Petronijevic (sometimes styled as Petronievics) (Serbian Cyrillic: ????????? "?????" ????????????; 6 April 1875 – 4 March 1954) was a Serbian philosopher and paleontologist.
His major work is the two-volume Prinzipien der Metaphysik (Principles of Metaphysics, Heidelberg, 1904–1911), in which he outlines his original metaphysical system – a synthesis of Baruch Spinoza's monism and Gottfried Leibniz's monadological pluralism into what he called "monopluralism".
Influenced by George Berkeley and G.W.F.
Hegel, Petronijevic held that our immediate experience is the source of basic logical and metaphysical axioms – what he called "empirio-rationalist" epistemology.In the field of palaeontology, Petronijevic was the first to distinguish between the genera Archaeopteryx and Archaeornis.
However, most of his taxonomic interpretations were later abandoned.
He also discovered new characteristics of the genera Tritylodon and Moeritherium.