-
Carbactinoceratidae are
removed from the
Actinocerida in
Kroger and
Mapes (2007).
Pseudorthocerids were
previously known as the Pseudorthocerataceae, a
superfamily within...
- taxa and a few
groups survived into the
early Mesozoic,
including pseudorthocerids, bactritids,
nautilids and
possibly orthocerids. The last straight-s****ed...
-
grounds that it
arose from a
different baltoceratid ancestor. The
pseudorthocerids are
thought to be
distinct because their protoconch and
septal necks...
- off as
separate order.
Order †
Orthocerida Includes orthocerids and
pseudorthocerids Order †
Ascocerida Order †
Oncocerida Order †
Discosorida Order † Tarphycerida...
-
Campyloceras is a
genus of
Lower Carboniferous (Mississippian)
pseudorthocerid that has an elongate,
moderately curved, s****.
Curvature is
greatest toward...
-
Tripteroceroides is a
pseudorthocerid from the
Lower Carboniferous (Mississippian)
belonging to the
family Spyroceratidae .
Pseudorthocerids are
nautiloid cephalopods...
-
Sceptrites is an
orthoceratoid genus contained within the
pseudorthocerid family Spyroceratidae known by its
slightly compressed,
possibly endogastrically...
- by
Schindewolf in 1943 (Sweet, 1964) and is the type
genus of the
pseudorthocerid family, Pseudactinoceratidae. The type species, P. promiscuum, came...
-
Southern New
Mexico with
features resembling those found in actinocerids.
Pseudorthocerids and
actinocerids (respectively
Pseuorthocerida and Actinocerida) are...
- to
Pennsylvanian orthoconic nautiloid cephalopods included in the
pseudorthocerid family Spyroceratidae,
characterized by tubular, straight-sided, siphuncle...
