Pachycormiformes
Автор:
Jesse Russell,Ronald Cohn, издатель:
"VSD", ISBN:
978-5-5119-8119-2
High Quality Content by WIKIPEDIA articles! 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