- Albian.
Raninids'
dorsal surfaces have
varying textures: smooth, pitted, granular,
inclined or
fungiform nodes, eroded,
scabrous or terraced.
Raninids have...
-
sidelong gait more efficient. Some
crabs walk
forward or backward,
including raninids,
Libinia emarginata and
Mictyris platycheles. Some crabs, like the Portunidae...
-
Hippoids are
adapted to
burrowing into
sandy beaches, a
habit they
share with
raninid crabs, and the
parallel evolution of the two
groups is striking. In the...
-
Tepee Buttes,
South Dakota. A
raninid crab. R.
oaheensis Butte County,
South Dakota.
Gammon Ferruginous Member. A
raninid crab.
Rugafarius R. fredrichi...
- more efficient. However, some
crabs walk
forwards or backwards,
including raninids,
Libinia emarginata and
Mictyris platycheles. Some crabs,
notably the Portunidae...
-
Rodney M.
Feldmann &
Carrie E.
Schweitzer (2009). "Systematic
evaluation of
raninid cuticle microstructure" (PDF).
Bulletin of the
Mizunami Fossil Museum....
- Martínez-Díaz et al.
Paleocene (Selandian)
Rancho Nuevo Formation Mexico A
raninid crab.
Cretalamoha Gen. et sp. nov
Valid Nyborg & Gar****ino Late Cretaceous...
-
Bonizzatoides Gen. et sp. nov
Valid Beschin,
Busulini &
Tessier Eocene Italy A
raninid crab. The type
species is
Bonizzatoides tuberculatus.
Boschettocheles Gen...
- comb. nov
Valid Van
Bakel et al.
Eocene Italy Spain United
States A
raninid crab. The type
species is "Cyrtorhina"
globosa Beschin, Busulini, De Angeli...
- et comb. nov
Valid Karasawa et al.
Eocene (Lutetian-Bartonian) Italy A
raninid crab. The type
species is "Cyrtorhina"
oblonga Beschin, Busulini, De Angeli...
