 I. hilli , coined by Edwin Tully Newton in 1892 for a tooth from the early Cenomanian Upper Cretaceous Lower Chalk of Hertfordshire , has been considered an early hadrosaurid of some sort . However , recent work places it as indeterminate beyond Hadrosauroidea outside Hadrosauridae . 
 I. hilli , coined by Edwin Tully Newton in 1892 for a tooth from the early Cenomanian Upper Cretaceous Lower Chalk of Hertfordshire , <a href='been_done' title='1'><mark>has</mark></a> been considered an early hadrosaurid of some sort . However , recent work <a href='uninflect' title='2'><mark>places</mark></a> it as indeterminate beyond Hadrosauroidea outside Hadrosauridae . 
I. hilli , coined by Edwin Tully Newton in 1892 fa a tooth from da early Cenomanian Upper Cretaceous Lower Chalk of Hertfordshire , done been considered an early hadrosaurid of some sort . However , recent work place it as indeterminate beyond Hadrosauroidea outside Hadrosauridae .