-
involute haploceratacean ammonite from the
Lower Cretaceous included in the
oppeliid subfamily Aconeceratinae. The s**** of
Protaconeceras has a
crunulate keel...
-
Aconeceras is an
early Cretaceous ammonite included in the
oppeliid subfamily Aconeceratidae,
characterized by an involute, high-whorled, flat-sided s****...
- Schweigert;
Luciano Brambilla (2019). "Pseudosonninia, a new
genus of
oppeliid ammonite (Haploceratoidea) from the
Callovian (Middle Jur****ic) of the...
-
Cymaceras is a
genus within the
oppeliid subfamily Ochetoceratinae from the
Kimmeridgian stage,
around the
middle of the
Upper Jur****ic.
Cymaceras is rather...
-
sensu lato and
Prohecticoceras from the
underlying Bathonian form the
oppeliid subfamily, Hecticoceratinae. Hecticoceras,
including its
various subgenera...
-
Uhligites is an
oppeliid ammonite included in the
subfamily Streblitinae that
lived during the
latest part of the Jur****ic and
earliest Cretaceous; from...
- sides. Creniceras,
named by Munier-Chalmas in 1892, is
included in the
oppeliid subfamily Teramelliceratinae, and has been
found in
Upper Jur****ic (Oxfordian...
-
Hecticoceratinae is a
subfamily of
oppeliids from the
Middle and
Upper Jur****ic
typically with
strong falcoid or
falcate ribbing that
covers whorl sides...
- Schweigert;
Luciano Brambilla (2019). "Pseudosonninia, a new
genus of
oppeliid ammonite (Haploceratoidea) from the
Callovian (Middle Jur****ic) of the...
