<div class=lexical__image float><div class=lexical__imageWrapper><img src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=1&url=https%3A%2F%2Fimages.vocus.cc%2F5f77e580-bf41-420e-899c-40ad9b3cc8c1.jpg&width=640&sign=g6TrugF7TF8JnLVmbrHyU9ZpyWdNSJqxxtCD6PkAiMc data-src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=80&url=https%3A%2F%2Fimages.vocus.cc%2F5f77e580-bf41-420e-899c-40ad9b3cc8c1.jpg&width=640&sign=XbO1Oi6dw5gFVyL2YxsgdDwDoorrIa3opXhWnmsJFuk class=lazy data-original-src=https://images.vocus.cc/5f77e580-bf41-420e-899c-40ad9b3cc8c1.jpg data-lowquality=true data-width=640 data-height=480 alt=raw-image></div><div></div></div><p class=lexical__paragraph dir=ltr><b> alta</strong></b></p><p class=lexical__paragraph dir=ltr> 輻鰭魚綱</span></p><p class=lexical__paragraph dir=ltr><span style=white-space: pre-wrap;> Clupeiformes 鯡形目</span></p><p class=lexical__paragraph dir=ltr><span style=white-space: pre-wrap;> Clupeidae 鯡科</span></p><p class=lexical__paragraph dir=ltr><span style=white-space: pre-wrap;> Knightia 艾氏魚屬</span></p><p class=lexical__paragraph><br></p><p class=lexical__paragraph dir=ltr><span style=white-space: pre-wrap;>產地:美國懷俄明州綠河組 (Green River Fm, Wyoming USA)</span></p><p class=lexical__paragraph dir=ltr><span style=white-space: pre-wrap;>年代:始新世 (Eocene,54 ~ 37 Mya)</span></p><p class=lexical__paragraph dir=ltr>.alta 原本被認為是懷孕的始新艾氏魚,Leidy於1873年重新劃分為不同的種類。為群捿性,具有很寬的腹部為其特徵,身體高,身長最大為15公分,較一般的艾氏魚小。</span></p><div class=lexical__image center><div class=lexical__imageWrapper><img src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=1&url=https%3A%2F%2Fimages.vocus.cc%2Faad9fc9d-6d1e-4922-adbe-e5147c94823a.jpg&width=640&sign=1njeCRnZUDWyrCT9BUGCKug0c-iEcKeBCbJv3IhvlK4 data-src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=80&url=https%3A%2F%2Fimages.vocus.cc%2Faad9fc9d-6d1e-4922-adbe-e5147c94823a.jpg&width=640&sign=yFVAfJn7Lj7LrFwBpE1VKg91GBnkNukXiD8T1R7rOMo class=lazy data-original-src=https://images.vocus.cc/aad9fc9d-6d1e-4922-adbe-e5147c94823a.jpg data-lowquality=true data-width=640 data-height=480 alt=raw-image></div><div></div></div><div class=lexical__image center><div class=lexical__imageWrapper><img src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=1&url=https%3A%2F%2Fimages.vocus.cc%2F55d56848-1a98-4da9-930b-65ea9197dd28.jpg&width=640&sign=vbHXJ78qzP7sEgpVN_GHcQ5wwpoL05MBGGvZIGd-KnQ data-src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=80&url=https%3A%2F%2Fimages.vocus.cc%2F55d56848-1a98-4da9-930b-65ea9197dd28.jpg&width=640&sign=nGwtt7qTntbPAejyWS1Ttom5msecnUFAaROlJKmm3tk class=lazy data-original-src=https://images.vocus.cc/55d56848-1a98-4da9-930b-65ea9197dd28.jpg data-lowquality=true data-width=640 data-height=480 alt=raw-image></div><div></div></div><div class=lexical__image center><div class=lexical__imageWrapper><img src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=1&url=https%3A%2F%2Fimages.vocus.cc%2F4830f518-72c5-4715-8bd5-4a1787c086a1.jpg&width=640&sign=grjCmcSTAoA1qIkzv39mxhx1QOOWUjf30GTFpswYheQ data-src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=80&url=https%3A%2F%2Fimages.vocus.cc%2F4830f518-72c5-4715-8bd5-4a1787c086a1.jpg&width=640&sign=CgVAKBuHGugoljxlb-CxX7glFKjoLaTB99GLqHcxi9Y class=lazy data-original-src=https://images.vocus.cc/4830f518-72c5-4715-8bd5-4a1787c086a1.jpg data-lowquality=true data-width=640 data-height=480 alt=raw-image></div><div></div></div><div class=lexical__image center><div class=lexical__imageWrapper><img src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=1&url=https%3A%2F%2Fimages.vocus.cc%2F0833ebc7-bb59-4217-875a-17fbbf7dbc0a.jpg&width=640&sign=i54MsU5a4x9CUoWfEcfyTD6vUBTZlrepMfoHvFsDD08 data-src=https://d2a6d2ofes041u.cloudfront.net/resize?norotation=true&quality=80&url=https%3A%2F%2Fimages.vocus.cc%2F0833ebc7-bb59-4217-875a-17fbbf7dbc0a.jpg&width=640&sign=tyRHKZ-dc5S8yvlrCze5tM1YlPZuMabSc6qh4GIRqiA class=lazy data-original-src=https://images.vocus.cc/0833ebc7-bb59-4217-875a-17fbbf7dbc0a.jpg data-lowquality=true data-width=640 data-height=480 alt=raw-image></div><div></div></div>