prototherian Prototheria • prototitanium · · · Info · Definitions · Characters · · prototherian · · Text Latin · · Script 12 · · Length Definitions · · · (noun) primitive oviparous mammals found only in Australia and Tasmania and New Guinea. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074