Simplify the following text for a Grade 14 native English-speaking person.
Original: From a morphological standpoint , it has been originally placed within the family Crocodylidae , but recent immunological studies suggest that it is more closely related to the gharial than was originally thought .
Simplified: From a morphological standpoint , it has long been classed in the family Crocodylidae , but recent immunological studies have shown that it is more closely related to the gharial than was originally thought .