Pachycormiformes Temporal range: Late Triassic - Late Cretaceous, 228–65.5 Ma |
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Hypsocormus of the Pachycormidae | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Infraclass: | Holostei |
Order: | †Pachycormiformes |
Families | |
Pachycormiformes is an extinct order of ray-finned fish known from Mesozoic deposits from Eurasia and the Americas. They were characterized by having serrated pectoral fins, reduced pelvic fins and a bony rostrum. Their relations with other fish are unclear.
Some sources place Ichthyodectidae herein too, but these seem to be somewhat more advanced Teleostei.