1.
Tiwari R, Ram-Awatar. Protoeusaccites gen. nov.- A case of transitionary, character-state in saccus structure in the late permian bisaccate pollen. JPS [Internet]. 1993 Dec. 31 [cited 2024 Nov. 23];42(1-3):387-95. Available from: https://jpsonline.co.in/index.php/jop/article/view/1159