-
Graticula,
formerly incorrectly named Craticula, is a
genus of
Palaeozoic coralline alga. They form the
framework of reef
rocks in the
Silurian of Gotland...
- formation;
later stem-group
forms include Arenigiphyllum, Petrophyton,
Graticula, and Archaeolithophyllum. The
corallines were
thought to have evolved...
- (15th century; VL brodicula),
griddle (c. 1300, ME gridel, F gredil, VL
graticula;
cognate with E hurdle),
grille (1661), jail (1250s; F jaiole, nF gaiole...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
-
Palaeozoic coralline to bear
clear conceptacles,
although the
earlier Graticula does bear
reproductive structures. It
mineralized using aragonite. Its...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
- corallines:
Arenigiphyllum (Ordovician)
Petrophyton (Ordovician : Caradoc)
Graticula (Silurian : Wenlock)
Halysis (Ordovician)
Archaeolithophyllum (Pennsylvanian)...
