- name
Dactylioceras comes from the Gr**** dactyl,
meaning “finger”, and keras,
meaning "horn" and
refers to the s****'s
branching ribs.
Dactylioceras are...
-
defined by the
first appearance of
ammonites belonging to the
subgenus Dactylioceras (Eodactylites). The
Aalenian is
named after the city of
Aalen in Germany...
- not
cover those preceding, the
specimen is said to be
evolute (e.g.,
Dactylioceras). A thin
living tube
called a
siphuncle p****ed
through the septa, extending...
- Microdactylites,
which is
sometimes considered to be a
synonym of
Dactylioceras, is
genus of
ammonite that
lived during early to
middle Toarcian stage...
-
variabilis zone of
Hildoceras bifrons zone of
Harpoceras serpentinum zone of
Dactylioceras tenuicostatum "International
Chronostratigraphic Chart" (PDF). International...
- A
snakestone from near Whitby, with head
carved onto a
specimen of
Dactylioceras commune (Sowerby, 1815),
Whitby Formation,
Toarcian Stage, late Lower...
-
early Jur****ic. It has
evolved from Prodactylioceras, or Cetonoceras.
Dactylioceras (Eodactylites) has
probably evolved from this genus.
Aveyroniceras is...
-
Belemnites with
Early Jur****ic
Dactylioceras ammonites...
-
Treatise has been published.
Reynesoceras Spath, 1936
Dactylioceras Hyatt, 1867 D. (
Dactylioceras) Hyatt, 1867 D. (Orthodactylites) Buckman, 1926 D. (Iranodactylites)...
- in the deposits,
including ammonites such as
Hildoceras bifrons and
Dactylioceras bifrons and also
Ichthyosaur and
Plesiosaur remains,
though the latter...
