-
Siberian nomenclature stage 4
would overlap with
parts of the
Botomian and
Toyonian. The
beginning of
Cambrian Stage 4 has been
tentatively correlated with...
- the
first major extinction of the Phanerozoic, the 513 – 508 Ma Botoman-
Toyonian Extinction (BTE),
which included the loss of the
archaeocyathids and hyoliths...
-
animals which lived in the
early to mid-Cambrian
Period (Tommotian to
Toyonian). They were very
similar to
archaeocyath sponges, with a cup-shaped calcareous...
- (about 5
centimetres or 2.0
inches long). It
lived during the
Botomian and
Toyonian stages (Olenellus-zone), 522 to 510
million years ago, in what is currently...
-
fossil marine arthropods, the trilobites. It
lived during the part of the
Toyonian stage. This
faunal stage was part of the
Cambrian Period.
Fremontella shares...
-
Cambrian p****ed into the
Middle Cambrian, at the end of the
stage called Toyonian. A
feature uniting the
Olenellina is the lack of
rupture lines (or sutures)...
- entire,
articulate specimens have not yet been found. It
lived during the
Toyonian stage (Upper Olenellus-zone), in what is
today the South-Western United...
-
extinct marine arthropods. They
occurred during the late
Lower Cambrian (
Toyonian) and
disappeared at the end of the
Middle Cambrian.
Representatives of...
-
solitary organisms,
while others formed colonies. In the
beginning of the
Toyonian Age
around 516 mya, the
archaeocyaths went into a
sharp decline. Almost...
- arthropods.
Olenellids lived during the late
Lower Cambrian (Botomian/
Toyonian) in the Olenellus-zone in the
former paleocontinent of
Laurentia and parts...
