Fossil Detail

C lass：Gastropoda 腹足綱
Order：Heteropoda 異足目
Family：Naticidae 玉螺科
Genus：Polinices 無臍玉螺屬
Scientific Name ：Polinices didyma didyma  (Roeding, 1798)
Chinese Name：大玉螺
Fossil Location：苗栗縣龍港地方通霄層 (Tungshiao Formation, Longgang, Miaoli county)
Fosill Ages：更新世, Pleistocene
Reservation Location： 國立台中自然科學博物館
Inventory No.：NMNS001830,001830a-d
Size：SH1.4cm,Dia3.1cm
Reference：台灣貝類化石誌2-7(上):695-696, 1992
Plate：圖版一一七，圖 3,4,7

• Taiwan Malacofauna
• Shell specimen from Taiwan
• Shell specimen in abroad
• New species
• The shells of world
  • shell base
  • Common shells of world
• Reference of shells
• Taxonomy of Taiwan shells
• Query by Family
• Query by contour
• Shell midden
• Shell fossil
• Others
  • The Oceanic Squids of Taiwan
  • Radula and ultrastructure of shell
  • The Chinese character of shell
  • Inner beautiful spiral
• Chinese 中文