化石：魟魚脊柱皮齒

品名：Ray dermal spine 魟魚脊柱皮齒

地點：Bone Valley, (骨頭谷）佛州

年代：中新世 10ma

<span style="-webkit-text-stroke-width:0px; background-color:rgb(255, 255, 255); color:rgb(29, 33, 41); display:inline !important; float:none; font-family:helvetica,arial,sans-serif; font-size:15px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">這是個怪東西 <br style="letter-spacing: normal; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; color: rgb(29, 33, 41); font-family: Helvetica, Arial, sans-serif; font-size: 15px; background-color: rgb(255, 255, 255);"> <span style="-webkit-text-stroke-width:0px; background-color:rgb(255, 255, 255); color:rgb(29, 33, 41); display:inline !important; float:none; font-family:helvetica,arial,sans-serif; font-size:15px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">魟魚脊椎骨上面的棘突 <span style="-webkit-text-stroke-width:0px; background-color:rgb(255, 255, 255); color:rgb(29, 33, 41); display:inline !important; float:none; font-family:helvetica,arial,sans-serif; font-size:14px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">應該是背上的那一條像牙齒的鱗片 <span style="-webkit-text-stroke-width:0px; background-color:rgb(203, 203, 203); color:rgb(119, 119, 119); display:inline !important; float:none; font-family:verdana; font-size:13px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px"> ， <span style="-webkit-text-stroke-width:0px; background-color:rgb(255, 255, 255); color:rgb(29, 33, 41); display:inline !important; float:none; font-family:helvetica,arial,sans-serif; font-size:14px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; orphans:2; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">紅色圈起來的地方，類似鯊魚的dermal denticles，翻譯是皮齒，游泳時降低水的阻力用

資料來源： https://fossilmeenjoy.pixnet.net/blog/post/45926496-%E9%AD%9F%E9%AD%9A%E8%84%8A%E6%9F%B1%E7%9A%AE%E9%BD%92

BrownSheep的部落格

生活雜記書評