Date Note | Agassiz visits the collection in Autumn 1834, material is loaned and returned by Feb 1836 (Britsol Inst Report) |
Administrative History | Although in unpublished series, image appears in 'Recherches sur les Poissons Fossiles' (1833-1843/1844), see below. |
CustodialHistory | From a folder marked 'Psammodus, Helodus, Strophodus, Ctenoptychius, Petalodus' |