premaxilla，英語單詞，主要用作名詞，作名詞時譯為“[解剖] 前頜骨”。
前頜骨（Premaxilla）：僅右上頜骨前端殘存一小的腹側部分，其內側較凸，形成圓滑的嵴，並與上頜骨主體內側相續。上頜骨（Maxilla）：只保存右側部分，長35 cm，構成眼前孔的大部分前緣。內側視上頜骨主體部分比較低，內側面凸起呈縱向延伸的圓滑的隆嵴，與Sinraptor的比較相似。隆嵴的下面呈長板狀，至少8個齒槽...
primitive protoceratopsid, lightly built; premaxillary dentition consisting of 3-4 teeth; skull narrow and long; width across quadrato-jugal reaching 75% basal length of skull; frill short or absent; snout relatively long; large antorbital fossa located at premaxilla-maxilla suture; in lateral ...
燕子溝遼寧角龍（Liaoceratops yanzigouensis Xu,Makovicky,Wang,Norell & You,2002）是採集於朝陽市北票市燕子溝的化石標本。特徵描述 neoceratopsian characterized by sutures between premaxilla, maxilla, nasal and prefrontal intersecting at a common point high on side of snout; possession of several ...
小吻幻龍（Nothosaurus rostellatus Shang,2006）是採集於六盤水市盤縣的化石標本。特徵描述 A species of Nothosaurus of medium overall size (the condylobasal skull length 210-320mm); rostrum relatively short and small; five fangs on each premaxilla, the fifth slightly smaller; 6-9 small maxillary...
norm of anteroposterior skeletal occlusion.目的：分析常用頜骨矢狀向位置關係評價指標的準確性和可靠性。Results: Cephalometric analysis revealed that the premaxilla was moved forward and downward and the length of palatal plane increased.頭影測量分析顯示上頜前部得到有效向前、向下移動；齶平面延長。
for which directly comparable material is currently unknown. differs from pantolambdodon inermisin having the premolar row longer than the molar row, m2 the longest molar instead of m3, and the third incisor alveolus set laterally instead of all three being at the front edge of the premaxilla...
Nasal process of premaxilla forms the whole posterior margin of the naris.背突構成整個外鼻孔的後緣。With the development of the fish, the anterior naris of the fry rose above the external surface and developed into a tubular extension, which opened to the outside.隨其發育，仔魚前鼻孔隆起於外...
dentary center 翻譯 ; 下頜骨化中心 ; 牙中心 dentary-squamosal joint 齒骨 雙語例句 It can be diagnosed by various details of the premaxilla, nasal, and dentary in the skull and the shape of the distal caudal vertebrae.它的特徵包括其各細節的前頜骨，鼻骨，齒骨，頭骨和在尾椎骨末端的形狀。
差異吐魯番鱈是產於新疆維吾爾自治區烏魯木齊市的晚二疊世（P₂）的化石。特性描述 Parietal grand, dont la longueur atteint environ les 2/3 de celle du frontal; suture parieto-frontale digitee; existence d'un supraorbital et d'os anamestiques;anteorbital et rostropremaxillaire grands; quatre sous...
