Haptodus garnettensis was named based on the holotype RM 14156, a partially articulated skeleton (cranial and postcranial) of an immature individual. More than 16 well-preserved specimens of various ontogenetic stages were referred to this species.
The species Haptodus garnettensis was identified using the holotype RM 14156, which includes a partially articulated skeleton (both cranial and postcranial) of an immature individual. Over 16 well-preserved specimens from different developmental stages were classified under this species.