-
Cambrian period,
thrived in the oceans. This
includes the
distinctive Nemagraptus gracilis graptolite fauna,
which was
distributed widely during peak sea...
-
boundary is
defined as the
first appearance datum of the
graptolite species Nemagraptus gracilis around 458.4
million years ago. The
Sandbian lasted for about...
- has been
collected from the
Middle Ordovician of
Kazakhstan (Caradoc,
Nemagraptus gracilis Zone, Saga Formation, Saga
River section,
Stepnyak district)...
- Fågelsång
section Sularp Brook, Skåne,
Sweden Biologic:
First appearance of
Nemagraptus gracilis (Graptolite). 1.4 m
below a
phosphorite marker bed. 55°42′49″N...
- L.
bimucronatus L.
mucronatus Leptograptus L.
patulosus Mesograptus Nemagraptus N.
gracilis Orthograptus Phyllograptus Retiograptus R. geinitzi**** R...
-
period on the
geologic time scale. The
first appearance of the
graptolite Nemagraptus gracilis defines the boundary. The rock
section consists primarily of...
-
Lower GSSP
ratified 1987
Upper boundary definition FAD of the
Graptolite Nemagraptus gracilis Upper boundary GSSP Fågelsång section,
Sularp Brook, Skåne,...
- L M N O P Q R S T U V W X Y Z †Naticopsis †Naticopsis
buttsi †
Nemagraptus †
Nemagraptus gracilis †Neozaphrentis †Nervostrophia †Nervostrophia
nervosa †Nicholsonella...
- †Naticopsis †Naticopsis
tayloriana – type
locality for
species †
Nemagraptus †
Nemagraptus gracilis – or
unidentified comparable form †Neoeridotrypella †Neoeridotrypella...
-
unidentified related form †Naticopsis
suturicompta †Nazarovella †
Nemagraptus †
Nemagraptus gracilis †Nematosalpinx †Nematosalpinx
dichotomica †Nematosalpinx...
