-
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...
- Hildoceratidae,
Hammatoceratidae, Graphoceratidae, and Sonniniidae. In some
taxonomies the name
Phymatoceratidae is
substituted for the
Hammatoceratidae Hildoceratidae...
- with
strongly ribbed,
involute s****. They are
combined with the
Hammatoceratidae (= Phymatoceratidae), Graphoceratidae, and
Sonniniidae to make up 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...
- 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...
- then (e.g.
Donovan et al. 1981) have
removed it to the
Hammatoceratidae. The
Hammatoceratidae, the
oldest of
which predate the
Sonniniidae so as to be...
- class:
Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †
Hammatoceratidae Subfamily: †Hammatoceratinae Genus: †Eudmetoceras Buckman, 1920...
-
Toarcian ages. He
studied the
evolutions of
families Hildoceratidae,
Hammatoceratidae and Polymorphitidae.[1] He
introduced numerous new taxa (species, genera...
- the
venter that
replaces the keel,
generally characteristic of the
Hammatoceratidae Abbasites was
originally described by
Sydney S.
Buckman in 1921, with...
