The
holotype of
"Haptodus" garnettensis is
RM 14156, a partially articulated
skeleton (
cranial and
postcranial) of immature individual. More than 16 well-preserved specimen of various
ontogenetic stages were referred to this species. All specimens came from the Garnett Quarry, located in the
Anderson County of
Kansas. They were collected from the
Rock Lake Member of the
Stanton Formation (Lansing Group), dating to the late
Kasimovian stage of the late
Pennsylvanian series, about 304
million years old. Laurin (1993, 1994) suggested that
Haptodus garnettensis would have to be renamed because he saw
Haptodus baylei as a possible
nomen dubium. In his dissertation revising taxa assigned to
Haptodus, Spindler (2015) proposed that
"Haptodus" garnettensis is not congeneric with the
Haptodus type species, giving it the
nomen ex dissertationae Eohaptodus. He also concluded that two specimens referred to
garnettensis, ROM 43608 and ROM 43601, represent new genera and species, the former specimen being named
Kenomagnathus by Spindler (2020) and latter specimen being given the
nomen ex dissertationae Tenuacaptor reiszi. ==References==