- 3rd
stage of the Cambrian. The
stage approximately corresponds to the "
Atdabanian",
which is used by
geologists working in Siberia. The
oldest trilobite...
- Bengtson,
Matthews et Missarzhevsky, 1981;
Lower Cambrian,
Atdabanian Stage, Kazakhstan;
Atdabanian and
Botomian Stages,
Russia (Siberian Platform) and England;...
- –
Atdabanian 3]
Ramifer Jankauskas, 1969 [Tommotian 2 –
Atdabanian 4]
Family Vologdinophyllidae Radugin, 1964
Manaella Jankauskas, 1964 [
Atdabanian 1]...
- to archaeocyaths.
Radiocyaths reached their maximum abundance in the
Atdabanian and Botomian,
contributing towards the biom**** of
archaeocyath sponge...
- In
other regions of the world, they
appeared much later,
during the
Atdabanian, and
quickly diversified into over a
hundred families. They
became the...
-
appearance of
trilobites in the
fossil record defines the base of the
Atdabanian stage of the
Early Cambrian period (521 million
years ago) and they flourished...
-
Branchian /
Comley (part)
Toyonian Dyeran Botomian "Stage 3"
Nangaoan Atdabanian Montezuman Placentian /
Comley (part)
Terreneuvian "Stage 2" Meishucunian...
- The
earliest generally accepted echinoderm fossils appeared in the Late
Atdabanian;
unlike modern echinoderms,
these early Cambrian echinoderms were not...
-
Temporal range: Cenomanian–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Possible Atdabanian Record Paragordius tricuspidatus Scientific classification Domain: Eukaryota...
-
Myllokunmingia Temporal range: 518 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Atdabanian Fossil of
Myllokunmingia fengjiaoa An artist's
conception of Myllokunmingia...
