基本信息
文件名称：参考学习资料 古生物 皮耶科梅氏鳗.pdf
文件大小：2.15 MB
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更新时间：2025-06-17
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文档摘要
__TA
morphosingandadultLampetraplaneri.
Thisenabledustodeveloptherecon-
structionshowninFig.4.
ClassAgnatha
OrderCyclostomata
ReporsFamilyPetromyzontidae
MayomyzonBardackandZangerL
newgenus
Diagnosis:Bodydeeperthanwide;max-
imumdepth1/8to1/9inbodylength.
Mouthobliquetobodyaxis,probablywith-
outcircumoralhoodandhornyteeth.Eye
large,itsdiameter3?infrontofheadto
FirstFossilLamprey:ARecordfromthefrontofeye.