The palaeospinacid shark material from the Sinemurian (Early Jurassic) of Lyme
Regis,(Dorset, England), is reviewed in detail and two new species described; Synechodus
enniskilleni sp. nov. and Synechodus occultidens sp. nov. It is concluded that the name
Palaeospinax priscus can only be applied to a single specimen on which no characters of
taxonomic value can be discerned and is thus a nomen dubium. Palaeospinax cannot
therefore be applied to other Early Jurassic specimens previously assigned to the genus …