- valid: †
Ptychotrygon ameghinorum †
Ptychotrygon blainensis †
Ptychotrygon eutawensis †
Ptychotrygon geyeri †
Ptychotrygon mcnultyi †
Ptychotrygon nazeensis...
- "The
first skeletal record of the
enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the
Turonian of Morocco" (PDF). Papers...
-
extinct Cretaceous sclerorhynchoid sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a
review of
Ptychotrygon taxonomy".
Journal of
Vertebrate Paleontology...
- Sclerorhynchoidei. This
family contains the
genera Archingeayia, Asflapristis,
Ptychotrygon, Ptychotrygonoides, and Texatrygon. Kriwet, J.; Nunn, E.V.; Klug, S....
- "The
first skeletal record of the
enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the
Turonian of Morocco".
Papers in Palaeontology...
- Marcou, 1858 †
Ptychotrygon Jaekel, 1894 †
Ptychotrygon agujaensis McNulty & Slaughter, 1972 †
Ptychotrygon blainensis Case, 1978 †
Ptychotrygon boothi Case...
- V9982). A ptychodontid. P.
whipplei Multiple teeth. A ptychodontid.
Ptychotrygon cf. P. sp.
Partial tooth (MNA V10097). A sawskate.
Scapanorhynchus S...
- "The
first skeletal record of the
enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the
Turonian of Morocco" (PDF). Papers...
- Lucas, 1993,
Ischyrhiza schneideri (Slaughter and Steiner, 1968), and
Ptychotrygon triangularis (Reuss, 1844). The ****emblage is
typical of
Turonian shark...
-
juvenile teeth forming a
short transversal crest similar to
those found in
Ptychotrygon. The
apron is broad, with a
rounded extremity that is bent
basally and...
