- cartilage. The very
first remains of
Ptychodus were
found in
England and
Germany in the
first half of the 18th century.
Ptychodus teeth have long been identified...
- †Serratolamna
Family †Ptychodontidae (extinct,
Cretaceous period)
Genus †
Ptychodus (16+ species)
Below is a
cladogram showing relationships within Lamniformes...
-
sharks such as Squalicorax, Cretoxyrhina, and the
giant s****fish-eating
Ptychodus mortoni (believed to be 10
metres (33 ft) long); and
advanced bony fish...
- Glikman, 1980 †
Ptychodus Ag****iz, 1839 †
Ptychodus acutus Ag****iz, 1843 †
Ptychodus ag****izi Dixon, 1850 †
Ptychodus altior Ag****iz, 1843 †
Ptychodus anonymus Williston...
-
reservoir by an embankment. [citation needed] In 1926, a
fossilized tooth of
Ptychodus latissimus paucisulcata was
found in
redeposited sediments of
Tunguz sand...
-
dolichosaurian thoracic vertebra and
teeth of chondrichthyians:
hybodontiform Ptychodus and
lamniform Protolamna, Cretolamna,
Cretoxyrhina and Hispidaspis. These...
-
unique dentition,
combining Squalicorax-like,
cutting anterior teeth with
Ptychodus-like,
crushing posterior teeth. Glickman, L.S. (1980).
Evolyutsiya melovykh...
- Cenomanian-Campanian
Kansas Chondrichthyes Odontaspis Cretaceous Delaware Chondrichthyes Ptychodus Albian-Maastrichtian
Kansas Chondrichthyes Scapanorhynchus Cretaceous-Miocene...
- the
dorsal finned Bananogmius, and the
cartilaginous fishes Cretolamna,
Ptychodus,
Rhinobatos and
Squalicorax were also
found within the formation. Several...
-
tenuis †P.
terminalis Synonyms Australopachycormus?
Ptychodus arcuatus Ptychodus gibberulus Ptychodus spectabilis Saurocephalus striatus Protosphyraena...
