-
Ammonoids are extinct, (typically) coiled-s****ed
cephalopods comprising the
subclass Ammonoidea. They are more
closely related to
living octopuses, squid...
- Đaković,
Mrdak &
Gawlick (2025)
describe three ****emblages of
Anisian ammonoids from the
Komarani and
Bulog formations (Montenegro),
including fossils...
- cephalopods,
along with the
extinct ammonoids (ammonites) and
living coleoids (such as squid, octopus, and kin).
While ammonoids and
coleoids are monophyletic...
- Goniatids,
informally goniatites, are
ammonoid cephalopods that form the
order Goniatitida,
derived from the more
primitive Agoniatitida during the Middle...
- Tri****ic epoch. The
biostratigraphy is
constrained by the
presence of the
ammonoids Tirolites and Bajarunia, and conodonts. The Tirolites/Columbites beds...
- at 393.47 Ma.
During this time, the
first ammonoids appeared,
descending from
bactritoid nautiloids.
Ammonoids during this time
period were
simple and differed...
-
Xiaowa Formation,
forming a lagerstätte
known as the
Guanling biota.
Ammonoids and
conodonts found in the
formation constrain its age to the
early Carnian...
-
Nielsenoceras is
monotypic Paraceltitid genus of
ammonoid from the
Middle Permian, Capitanian, that is
known from
sediments in west Texas. The
genus is...
- 99 million
years ago.
During this time, the
first ammonoids appeared,
descending from
bactritoid nautiloids.
Ammonoids during this time
period were
simple and differed...
-
research the
Devonian ammonoids,
working towards a PhD. He won a year's
fellowship to the US,
where he
worked on
Devonian ammonoid collections. In 1963...
