Armoured fish ['Placodermi'] Size:XS: 25 x 20cm 199 and Drawing Nov 25

199 and Drawing Nov 25 1832

Proposal for roof covering quadrangle of the Royal Exchange

Gordon Banks

built in 1676

Armoured fish ['Placodermi'] Size:XS: 25 x 20cm 199 and Drawing Nov 25Sketches of two types of extinct armoured fossil fish from the class Placodermi, active from the Silurian to Devonian periods. Side views of one whole fish and one head study, as if in life. Found loosely inserted in Recherches sur les poisons fosssiles tome 1, by Louis Agassiz (Neuchatel, 1833 1843), pp. 36 37. Agassiz's work was the first significant survey of fossil ichthyology and these rough sketches were probably made by someone using the book