-
Alkenopterus is a
genus of
prehistoric eurypterid classified as part of the
family Onychopterellidae. The
genus contains two species, A.
brevitelson and...
- were less than 20
centimeters (8 in) long; the
smallest eurypterid,
Alkenopterus, was only 2.03
centimeters (0.80 in) long.
Eurypterid fossils have been...
-
Alkenopterus Rhenopterus...
-
classified as part of the
superfamily Onychopterelloidea.
Genera included are
Alkenopterus,
Onychopterella and Tylopterella. List of
eurypterids Dunlop, J. A.,...
- ("primitive")
family of
eurypterines Onychopterellidae together with
Alkenopterus and Tylopterella,
characterized by the
presence of
spines in the second...
- carapace. Moselopterus,
Alkenopterus,
Vinetopterus and
Erieopterus are
superficially similar, but Moselopterus,
Alkenopterus and
Vinetopterus all have...
-
phylogeny of the
Stylonurina as
presented by
Lamsdell et al. (2010).
Alkenopterus (here
shown as a rhenopterid) has
since been
reclassified as a basal...
-
Tylopterella in the
family Onychopterellidae together with
Onychopterella and
Alkenopterus.
Tylopterella is
notable for its
thick ornamentation and
general body...
- one
subfamily to the family, the Rhenopterinae,
including the
genera Alkenopterus and Rhenopterus. The
Rhenopterinae was
restricted to the
Early to Middle...
-
Jordan 1854
Valid Devonian -
Permian Nearly cosmopolitan, see article.
Alkenopterus Størmer 1974
Valid Devonian Germany
Alloeurypterus Kjellesvig-Waering...
