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Petalichthyida is an
extinct order of small,
flattened placoderm fish. They are
typified by
their spla****
pectoral fins,
exaggerated lateral spines, flattened...
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during the Carboniferous. Many placoderms,
particularly the Rhenanida,
Petalichthyida, Phyllolepida, and Antiarchi, were bottom-dwellers. In particular, the...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
- (MDR). The
fusion of the
tubercles is
unique to
Lunaspis in the
order Petalichthyida,
where other devonian fish in this
order have
ornament tubercles that...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
- Acanthothoraci*
Petalichthyida Ptyctodontida Rhenanida Asterosteus Bolivosteus Gemuendina Jagorina Nefudina Ohioaspis Antiarchi see
Antiarchi Arthrodira...
- †Placoderms †Antiarchi †Arthrodira †Brindabellaspida †
Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida...
