-
Pseudomegachasma ("false megamouth") is an
extinct genus of filter-feeding
shark that was
closely related to the
modern sand
tiger shark. It is
known from...
- has been
recently reclassified as an
odontaspid shark in the
genus Pseudomegachasma, and is in fact
unrelated to the
megamouth shark despite similar teeth...
- has been
recently reclassified as an
odontaspid shark in the
genus Pseudomegachasma, and is in fact
unrelated to the
megamouth shark despite similar teeth...
- 1931
Subfamily Johnlonginae † Shimada, 2015
Genus Johnlongia †
Genus Pseudomegachasma † (Shimada, 2015) Froese, Rainer; Pauly,
Daniel (eds.). "Family Odontaspididae"...
- E. casei, from Late
Cretaceous Russian marine strata. A new genus,
Pseudomegachasma, was
erected in 2015 for E.
casei to be
transferred into. Li, G.-Q...
- however, it
forms a
clade with an
early filter-feeding
shark genus,
Pseudomegachasma. Shimada, Kenshu; Ewell, Keith; Everhart,
Michael J. (2004). "The First...
- an
extinct subfamily of sand
shark with two genera:
Johnlongia and
Pseudomegachasma. The
latter genus is
thought to have
evolved from former. They are...
-
Formation United
States An
eagle ray, a
species of Pseudaetobatus.
Pseudomegachasma Nom. nov et comb. nov
Valid Shimada et al. Late
Cretaceous (Cenomanian)...
-
another ancient organism,
which they
named the "false megamouth" (
Pseudomegachasma) shark, and
which was
likely a filter-feeding
planktivore during the...
- Zhelezko, 2000 †
Pseudomegachasma Shimada, Popov, Siversson,
Welton & Long, 2015 †
Pseudomegachasma casei Nessov, 1999 †
Pseudomegachasma comanchensis Shimada...
