Laccognathus [SEP] parent taxon
likely trait exhibited by "Laccognathus". Rather, the dense ossifications may have served to retain water inside the body as "Laccognathus" traveled on land between bodies of water.
Taxonomy.
"Laccognathus" are classified under the family Holoptychiidae in the extinct order Porolepiformes. They are not direct ancestors of tetrapods like the clade Tetrapodomorpha, but instead belong to the clade Dipnomorpha. Their closest living descendants are the members of the subclass Dipnoi (lungfishes).
Species.
The following are the species classified under "
Laccognathus". A fourth undescribed species recovered from the Middle Devonian of Latvia may exist.
- †"Laccognathus panderi"
- †"Laccognathus grossi"
- †"Laccognathus embryi"
See also.
- "Holoptychius"
- Sarcopterygii
- List of sarcopterygians
- List of prehistoric bony fish