Ostarioclupeomorpha
Ostarioclupeomorpha | ||||||||||||
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Moderlieschen ( Leucaspius delineatus ) |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Ostarioclupeomorpha | ||||||||||||
Arratia , 1997 |
The Ostarioclupeomorpha , Otomorpha or Otocephala , are a cohort of the Teleostei (bony fish i. E. S. ) and the derived sister group of the Euteleosteomorpha . They include the three cohorts Clupei ( clupeiformes ) Alepocephali and Ostariophysi ( Cypriniformes , Characiformes , catfish , et al..), But are not very broadly defined, namely after Arratia (1997) only by three skeletal synapomorphies :
- The middle extrascapular (a skull bone) is fused with the parietal bone or with the parietal bone and supraoccipital (skull bone) or connected in a rigid joint.
- The autopalatine, a pair of bones in the palate of the fish, ossifies early in the course of ontogenesis .
- The bases of the first and second hypuralia are not cartilaginously connected at any stage of growth.
Other possible synapomorphies are:
- The front section of the swim bladder is covered with a silvery coating.
- The hemal arches are fused with the vertebral centers from an early stage of youth.
Systematics
According to Joseph S. Nelson , the Ostarioclupeomorpha belong to 6 recent orders, 73 families, 1159 genera and 8295 fish species.
The following cladogram shows the systematic position of the Ostarioclupeomorpha:
Real bony fish |
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literature
- Joseph S. Nelson : Fishes of the World. 4th edition. John Wiley & Sons, Hoboken NJ 2006, ISBN 0-471-25031-7 .
- EO Wiley & G. David Johnson: A teleost classification based on monophyletic groups. Pages 123-182 in Joseph S. Nelson, Hans-Peter Schultze & Mark VH Wilson: Origin and Phylogenetic Interrelationships of Teleosts. 2010, Verlag Dr. Friedrich Pfeil, Munich, ISBN 978-3-89937-107-9 .