ecofactbook
/
species
/
Animalia
/
Chordata
/
_
/
_
/
Ptychodontidae
/
Ptychodus
/
Ptychodus altior
Ptychodus arcuatus
Ptychodus decurrens
Ptychodus depressus
Ptychodus gibberulus
Ptychodus latissimus
Ptychodus mammillaris
Ptychodus mortoni
Ptychodus multistriatus
Ptychodus oweni
Ptychodus paucisulcatus
Ptychodus polygyrus
Ptychodus rugosus
Ptychodus spectabilis
Ptychodus whipplei
about