Formation (with age) | Lithology | Marker Taxa |
Boulder Conglomerate *0.63 to 1.79 Ma | Boulders, cobbles, pebbles mainly of grey and purple coloured, rounded to well-rounded compact sandstones; set in matrix of coarse to very coarse occasional gravel matrix. Sometimes coarse sandstone, siltstone, mudstone beds or lenses are present. Clasts of limestone are present but very less. | No fossils |
Pinjor 2.60 Ma | Alternation of dull, brown, pink mudstones and coarse to medium-grained, grey, green, pebbly and soft sandstones. Sometimes in the upper part sandstone beds alternate with conglomeratic (pebbly sized) beds. | **First appearance of Equus, Cervus (cervids with antlers), Bubalus, Bos etc. |
Pre-Pinjor beds (=Tatrot Stage, =Dhamala Formation, =Saketi Formation of various workers) ***5.26 Ma | Bright grey and variegated mudstones interbedded with grey, brown coarse to medium-grained soft sandstones. | **Hipparion, Cormohipparion, Stegodon bombifrons, Hippohyus lydekkeri (=H. tatroti) etc. |