Skeletal remains of a small reptile with a distinctive dentition from the Lower Keuper (Erfurt Formation; Middle Triassic, Ladinian) of the Schumann quarry near Eschenau, in the municipality of Vellberg in Baden-Württemberg, Germany, represent a new taxon of non-archosaurian archosauriforms, Polymorphodon adorfi. It is diagnosed by various craniodental autapomorphies, including mesial and distal carinae of labiolingually flattened maxillary and dentary tooth crowns with large, somewhat hook-shaped denticles aligned at distinct angle to apicobasal axis of tooth crown; premaxilla with long, leaf-shaped posterodorsal process that is slightly longer than body of element; presence of prominent lateral fossa on premaxilla anteroventral to external narial fenestra; premaxilla with five gently recurved, conical teeth; medial surface of maxilla with distinct ledge above the interdental plates; and maxilla and dentary with distinctly heterodont dentition. Phylogenetic analysis recovered Polymorphodon adorfi in a position crownward of Erythrosuchus africanus but in an unresolved polytomy with derived non-archosaurian archosauriforms such as Proterochampsidae and Euparkeria capensis and with Archosauria. The maxillary and dentary teeth of Polymorphodon adorfi differ from those of other non-archosaurian archosauriforms and indicate a different, possibly omnivorous diet, suggesting that these reptiles were more diverse in terms of feeding habits than previously assumed.

在德国巴登-符腾堡州维尔贝格市埃舍瑙附近的舒曼采石场的下库珀尔山下具独特齿系的小型爬行动物的骨骼残骸代表了一种新的非建筑类群弓形目，多形阿多里。可以通过各种颅牙共形体来诊断，包括唇舌扁平的上颌和齿冠的近中和远端隆突，齿冠的大，有点钩状的齿状体与齿冠的pic尖轴成不同角度排列。前上颌骨具长叶状后气味过程，略长于元件主体；在上颌前腹到外鼻窗外的突出的侧窝; 前颌骨，有五个轻轻弯曲的圆锥形牙齿；上颌骨内侧表面在齿间板上方有明显的凸缘；上颌和齿列具有明显的异齿牙列。系统发育分析在非洲红背冠位置回收了多形体。但在未解决的多角体切除术中，存在衍生自非弓形虫的弓形目，如Proterochampsidae和Euparkeria capensis以及与弓形目。多形夜蛾的上颌齿和齿齿不同于其他非考古龙的弓形齿，表明饮食不同，可能是杂食性的，这表明这些爬行动物的饮食习惯比以前认为的要多样化。