-
unambiguous postcranial synapomorphies since cranial material of
basal microcleidids is unknown. The
synapomorphies are:
widely separated posterior cervical...
- been a
strong turnover around the Early–Middle Jur****ic boundary, with
microcleidids and
rhomaleosaurids becoming extinct and
nearly extinct respectively...
- taxa (like
early plesiosauroids including Plesiosaurus-like
forms and
microcleidids) and later-diverging taxa (including cryptoclidids, leptocleidians,...
- has both a long
snout and long neck. In contrast,
elasmosaurids and
microcleidids had
short snouts and
elongated necks, and many
pliosaurids and other...
- Owen
Early Jur****ic (Hettangian-Sinemurian) Blue Lias United
Kingdom A
microcleidid.
Plesiosaurus trochantericus Valid Owen Late Jur****ic (Kimmeridgian)...
-
Upper Alum Shale,
Hildoceras bifrons Zone
Multiple partial skeletons Microcleidid plesiosaur Macrospondylus M.
bollensis Harpoceras serpentinum Zone Several...
- Sp. nov
Valid Vincent et al.
Early Jur****ic (Toarcian) Luxembourg A
microcleidid plesiosaur.
Nothosaurus cristatus Sp. nov
Valid Hinz,
Matzke & Pfretzschner...
-
Lusonectes (meaning "Portuguese swimmer") is an
extinct genus of
microcleidid plesiosaur from the
Early Jur****ic (Toarcian) São Gião
Formation of Portugal...
-
coeval strata of
Europe (such as Temnodontosaurus, Stenopterygius,
microcleidids,
rhomaleosaurids and
basal pliosaurids), are
described from the Lower...
