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单词 Pachycormid
释义

Pachycormid

英语百科

Pachycormidae

(重定向自Pachycormid)

Pachycormidae is an extinct family 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. Certain members of the group were large filter-feeding planktivores. Their relations with other fish are unclear.

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