幻龍目 (已滅絕的目) Nothosauroidea(extinct order)
範圍註 ：
為已滅絕的海生爬蟲類，其化石多半在歐洲被發現。牠們與後來的蛇頸龍極為相似，但是被歸類為獨立的一目。幻龍目可追溯至三疊紀時期。特色是上顎與氣道位置接近，氣道則與食道分開。此外，其頭骨長而平坦，上有大型的孔；頜的邊緣則長有許多銳齒。身體纖細，頸、尾及四肢皆長。雖然幻龍為水生動物，但與較為進化的蜥鰭類相比，牠們的四肢較不適於游泳。
詞彙 ：
幻龍目 (已滅絕的目) (P,,U,繁體中文-偏好,D,,)
幻龍類(,U,繁體中文-非偏好,UF,U,U)
Nothosauroidea(extinct order) (P,,U,英文-偏好,D,L,N)
Nothosauroidea(extinct order) (P,,U,拉丁語-偏好,D,U,N)
nothosaurs(,U,英文-非偏好,AD,U,N)
nothosaur(,U,英文-非偏好,AD,U,N)
幻龍類(,U,繁體中文-非偏好,UF,U,U)
Nothosauroidea(extinct order) (P,,U,英文-偏好,D,L,N)
Nothosauroidea(extinct order) (P,,U,拉丁語-偏好,D,U,N)
nothosaurs(,U,英文-非偏好,AD,U,N)
nothosaur(,U,英文-非偏好,AD,U,N)
層面/層級編碼： X
層級架構：
藝術與建築詞典根目錄 ....代理者層面........活體有機體............真核生物 (域)................動物界 (界)....................脊索動物門 (門)........................脊椎動物亞門 (亞門)............................爬蟲動物綱 (綱)................................雙弓亞綱 (亞綱)
....................................幻龍目 (已滅絕的目)
其他範圍註 ：
| 英文.... | Extinct order of fossil marine reptiles found chiefly in Europe and closely resembling the later plesiosaurs, but classified as a distinct order; dating to the Triassic age. Distinguished by a palate that was closed with the air passages being separated from the food passages, a long and flat skull with large openings, numerous pointed teeth along the margins of the jaws, a slender body, long neck and tail, and long limbs. Although the animal was aquatic, the limbs were less specialized for swimming than they were in more advanced sauropterygians. |
來源與貢獻者：
| 幻龍類............ | [AS-Academia Sinica] |
| ................. | 大英百科全書線上繁體中文版 August 17, 2012 |
| Nothosauroidea(extinct order)............ | [VP] |
| ................. | Animal Diversity Web (1995-) accessed 17 August 2008 |
| ................. | Natural History Museum, London (2000-) accessed 17 August 2008 |
| ................. | Tree of Life Web Project (1995-) accessed 17 August 2008 |
| ................. | Encyclopedia Britannica Online (2002-) accessed 17 August 2008 |
| nothosaurs............ | [VP] |
| ................. | Oxford English Dictionary Online (2002-) |
| ................. | Encyclopedia Britannica Online (2002-) |
| nothosaur............ | [VP] |
| ................. | Oxford English Dictionary Online (2002-) |
外部連結：
Getty AAT: 300310273
Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300310273
聯合目錄： 幻龍目 、幻龍類 、Nothosauroidea 、nothosaurs 、nothosaur 、Nothosauroidea
聯合目錄： 幻龍目 、幻龍類 、Nothosauroidea 、nothosaurs 、nothosaur 、Nothosauroidea
引用：
[幻龍目 (已滅絕的目) Nothosauroidea(extinct order)(編號300310273)]。《藝術與建築索引典》。http://aat.teldap.tw/AATFullDisplay/300310273（2025/07/04瀏覽）。