- The
Xenodiscidae are the
earliest of the
Ceratitida and
comprise Middle and
Upper Permian genera characterized by compressed, discoidal,
evolute s****...
- Prolecanitidae. The
Daraelitidae gave rise in the
Middle Permian to the
Xenodiscidae, the
ancestral family of the
mainly Tri****ic
Ceratitida Miller, Furnish...
- Paleozoic. SPINOSA, Claude; FURNISH, W. M.; GLENISTER,
Brian F. The
Xenodiscidae,
Permian ceratitoid ammonoids.
Journal of Paleontology, 1975, 239-283...
- "9781157061519: Ceratitida: Xenodiscaceae, Noritaceae, Arcestes, Arctoceras,
Xenodiscidae, Halortidae, Anasirenites, Arpadites, Asklepioceras,
Araxoceratidae -...
-
probable source for the
order Ceratitida,
beginning with the
family Xenodiscidae in the
Middle Permian. Not
counting their ceratite descendants, the youngest...
-
Daraelitidae of the
Prolecanitida and they are the
apparent source of the
Xenodiscidae. All
together they
lived for some 12
million years, from
about 270.6...
-
Permian of
northern India and Timor.
Xenodiscus is
included in the
family Xenodiscidae which is part of the
ceratite superfamily Xenodiscaceae.
Xenodiscus has...
-
Treatise on
Invertebrate Paleontology, but was
earlier placed in the
Xenodiscidae. Five
subgenera are
recognized (in brackets):
Ophiceras (Ophiceras),...
-
Daraelitidae through the
ancestral Xenodiscidae.
According to
Kummel (1952) and
Arkell et al. (1957) the
Xenodiscidae gave rise to the
Otoceratidae and...
- deep
serrated lobes. Smith, J. P. (1932)
included Flemingites in the
Xenodiscidae,
which was
included in the
superfamily Prolecanitoidea (note spelling...
