41. The monophyly of this family is questionable; it is composed of three possibly monophyletic groups: 42. Although the monophyly of the order has been strongly supported, their placement is still uncertain. 43. Recent studies have confirmed its monophyly . 44. Monophyly of Old World Lotus is moderately supported whereas New World Lotus is considered as paraphyletic.45. Molecular studies have both confirmed the monophyly of the monocots and helped elucidate relationships within this group. 46. This even went as far as proposing monophyly for grebes, loons, and the toothed Hesperornithiformes. 47. The monophyly of several of the presumed orders in each subclass is still in need of verification. 48. A review in 2014 concluded that " at this time the monophyly of Deinopoidea remains dubious ". 49. These groups are no longer formally accepted because they do not adhere to the principle of monophyly . 50. The extensive cladistic analysis conducted by Turner et al . ( 2012 ) supported the monophyly of Troodontidae.
