- told from the
fossils of the
actual animals by
whether the
librigena are present. (The
librigena, or ch**** spines,
detach during moulting.) In ptychopariids...
- 1 – fixigena; 2 –
librigena; 3 – glabella...
- or the 'head') can be
divided into two regions—the
cranidium and the
librigena ("free ch****s"). The
cranidium can be
further divided into the glabella...
-
gemmuliferous †gemmula gemmul- gena gen- ch**** fixigena, gena, genal,
librigena gens gent- gens, genteel, gentile, gentility, gentle, gentrice, gentrification...
- Like in most trilobites, the
division between the
outer free ch**** (or
librigena) and the
inner fixed ch**** (or fixigena) is a line (or suture)
where the...
-
angle Glabella Gonatoparian Heteronomous Homonomous Hypostome Isopygous Librigena Macropygous Micropygous Opisthoparian Proparian Prosopon Spinosity Subisopygous...
-
angle Glabella Gonatoparian Heteronomous Homonomous Hypostome Isopygous Librigena Macropygous Micropygous Opisthoparian Proparian Prosopon Spinosity Subisopygous...
-
angle Glabella Gonatoparian Heteronomous Homonomous Hypostome Isopygous Librigena Macropygous Micropygous Opisthoparian Proparian Prosopon Spinosity Subisopygous...
-
angle Glabella Gonatoparian Heteronomous Homonomous Hypostome Isopygous Librigena Macropygous Micropygous Opisthoparian Proparian Prosopon Spinosity Subisopygous...
-
angle Glabella Gonatoparian Heteronomous Homonomous Hypostome Isopygous Librigena Macropygous Micropygous Opisthoparian Proparian Prosopon Spinosity Subisopygous...
