-
Hammatoceratidae is a
family of
lower and
middle Jur****ic
ammonites included in the
superfamily Hildoceratoidea.
Hammatoceratidae comprises genera which...
- by
Schindewolf in 1964 that
combined the
families Graphoceratidae,
Hammatoceratidae, and Sonniniidae. The
three families were
previously included in the...
- e.g. W.J.
Arkell et al., 1964 and D.T.
Donovan et al., 1981, the
Hammatoceratidae,
which then
included erycitid genera, was part of the Hammatoceratoidea...
- Hildoceratidae,
Hammatoceratidae, Graphoceratidae, and Sonniniidae. In some
taxonomies the name
Phymatoceratidae is
substituted for the
Hammatoceratidae Hildoceratidae...
- Jur****ic,
found in
Europe and
North America.
Bredyia is a
member of the
Hammatoceratidae, a
family which comprises part of the Hildoceratoidea. Its s**** is...
- is
likely all
three component families have
their beginnings in the
Hammatoceratidae in the
middle Bajocian. None of the
Haploceratoidea is
thought to have...
-
genus of
dwarf ammonites from the
Middle Jur****ic
included in the
Hammatoceratidae and
lacking a keel. The s**** is evolute,
inner whorls exposed; whorls...
- cf.spinosum SW of
Anergui Isolated S**** An
Ammonite of the
family Hammatoceratidae.
Indicator of a
Middle Aalenian age for the
uppermost layers, as is...
-
Hammatoceras is a
genus of
ammonites belonging to the
family Hammatoceratidae which lived during the
Toarcian stage of the Early/Lower Jur****ic between...
-
benannt wurde.
Fissilobiceras gehört zur
Familie der
Hildoceratoiden (
Hammatoceratidae).
Fissilobiceras is
similar to Shirbuirnia,
except primarily for being...
