Qeybtii ugu horeysay ee qalfoofka plesiosauroid waxaa laga helay England by Mary Anning, horraantii qarnigii 19aad, waxayna ka mid ahaayeen lafdhabartii ugu horreysay ee lafdhabarta ah ee lagu sharraxay sayniska. Qeybaha plesiosauroid waxaa laga helay geologist Scottish Hugh Miller 1844 dhagaxyada Great Estuarine Group (oo markaa loo yaqaan 'Series') ee galbeedka Scotland. Qaar badan oo kale ayaa la helay, qaar ka mid ah ku dhowaad dhamaystiran, iyo helitaanka cusub ayaa si joogto ah loo sameeyaa. Mid ka mid ah tusaalooyinka ugu fiican waxaa laga helay 2002 xeebta Somerset (England) qof kalluumeysi ka ah xeebta.
dhagaxyada ku yaalla Filey, Yorkshire, England