Fabaceae, presently a significant dominant taxon of the tropical vegetation of India, has been recognized as the most widespread and common component of Indian Cenozoic flora and known from numerous fossil woods, leaflets, pollen, and fruits. However, unfortunately no fossil legume flower has been reported from the Cenozoic sediments of India so far. Here, for the first time an extinct papilionoid flower is documented from the latest Neogene (Pliocene: Rajdanda Formation) sediments of Chotanagpur Plateau, eastern India. The fossil flower is characterized by a long ped-icel, five-lobed calyx, campanulate calyx tube with unequal calyx teeth, corolla with well-preserved standard and wing petal and is recognized as Neopapilionia indica Hazra, Hazra M and Khan gen. et sp. nov. The palaeoclimatic significance in terms of the present-day distribution of its modern analogue is also discussed.

豆科，目前是印度热带植被的重要优势分类群，已被认为是印度新生代植物群中分布最广，最常见的组成部分，并从众多化石，小叶，花粉和果实中获知。然而，不幸的是，到目前为止，印度新生代沉积物中尚无豆科植物化石的报道。在这里，首次记录了印度东部霍塔纳格普尔高原最新的新近纪（上新世：拉贾达达组）沉积物中灭绝的蝶粉花。化石花的特征是花梗长，有五裂的花萼，钟状的花萼筒和不等的花萼齿，花冠具保存完好的标准和翼状的花瓣，被认为是印度新芽孢杆菌哈兹拉（Hazra），哈兹拉M（Hazra M）和汗根（Khan gen）。等 十一月 还讨论了其现代类似物在当今分布方面的古气候意义。