- ("folded-teeth") are
placoderms of the
order Ptyctodontida,
containing the
family Ptyctodontidae. With
their big heads, big eyes,
reduced armor and long bodies, the...
- armour-plated fish of the late Devonian.
Ptyctodus belongs to the
family Ptyctodontidae and is of the
class Placodermi. They
share a
close resemblance to modern...
- Phylum:
Chordata class: †Placodermi Order: †Ptyctodontida Family: †
Ptyctodontidae Genus: †Eczematolepis Miller, 1892 Type
species †Eczematolepis fragilis...
- "†Macropetalichthyidae" "†Phlyctaeniidae" †Phyllolepida "†Placodermi" "†
Ptyctodontidae" "†Rhenanida"".
Archived from the
original on 2008-01-13. Retrieved...
- Phylum:
Chordata class: †Placodermi Order: †Ptyctodontida Family: †
Ptyctodontidae Genus: †Materpiscis Long et al., 2008 Species: †M. attenboroughi Binomial...
- "†Macropetalichthyidae" "†Phlyctaeniidae" †Phyllolepida "†Placodermi" "†
Ptyctodontidae" "†Rhenanida"".
Archived from the
original on 2008-01-13. Retrieved...
- CO;2. ISSN 0003-0082. Eastman, C. R. (1898). "Dentition of
Devonian Ptyctodontidae (Continued)". The
American Naturalist. 32 (380): 545–560. doi:10.1086/276968...
- Phylum:
Chordata class: †Placodermi Order: †Ptyctodontida Family: †
Ptyctodontidae Genus: †Austroptyctodus Long, 1997 Species: †A. gardineri
Binomial name...
- Phylum:
Chordata class: †Placodermi Order: †Ptyctodontida Family: †
Ptyctodontidae Genus: †Rhamphodopsis Watson, 1934 Type
species †Rhamphodopsis thrieplandi...
- Phylum:
Chordata class: †Placodermi Order: †Ptyctodontida Family: †
Ptyctodontidae Genus: †Ctenurella Ørvig, 1960 Type
species †Ctenurella gladbachensis...
