, ▁known ▁from ▁head , ▁cer v ical , ▁d ors al , ▁sac ral , ▁and ▁ca ud al ▁sc utes . ▁Only ▁a ▁few ▁head ▁o ste od erm s ▁were ▁identified , ▁so ▁it ▁is ▁unknown ▁how ▁much ▁of ▁the ▁sk ull ▁was ▁arm oured . ▁Many ▁cer v ical ▁and ▁d ors al ▁sc utes ▁have ▁been ▁preserved ▁alongside ▁species ▁of ▁Str uth ios aur us . ▁They ▁include ▁cer v ical ▁bands , ▁which ▁are ▁groups ▁of ▁o ste od erm s ▁f used ▁together ▁and ▁attached ▁to ▁the ▁verte bra e , ▁and ▁large ▁sp ines ▁found ▁on ▁the ▁shoulders ▁of ▁nod osa ur ids ▁like ▁Sau rop elta ▁and ▁Ed mont onia , ▁although ▁it ▁is ▁not ▁known ▁if ▁the ▁sp ines ▁were ▁f used ▁like ▁the ▁later ▁of ▁separate ▁like ▁the ▁former . ▁It ▁is ▁quite ▁possible ▁that ▁small ▁o void ▁sc utes ▁found ▁on ▁Str uth ios aur us ▁could ▁have ▁formed ▁a ▁pel vic ▁shield ▁like ▁pol ac anth ids . ▁The ▁ca ud al ▁sc utes ▁of ▁str uth ios aur ines ▁are ▁small ▁and ▁rough . ▁Even ▁though ▁o ste od erm s ▁are ▁well - known , ▁it ▁is ▁not ▁certain ▁where ▁they ▁were ▁position ed ▁on ▁the ▁body . ▁ ▁Classification ▁Str uth ios aur inae ▁is ▁a ▁group ▁named ▁by ▁Franz ▁N op cs a , ▁that ▁was ▁re inst ated ▁by ▁James ▁Kirk land ▁for ▁a ▁group ▁of ▁just - e urope an ▁nod osa ur ids