Pholidosauridae might be monophyletic, paraphyletic or even a polyphyletic in relation to Dyrosauridae. Epiphytic fungi, however, may associate more commonly with limited clades of "rhizoctonia", a polyphyletic grouping. This taxon was previously classified in the now polyphyletic family Stenoplesictidae. The original Carnosauria was a polyphyletic group including any large carnivorous theropod. Based on molecular phylogeny work, it is now believed that Hamamelididae is a polyphyletic group. Their results rendered the suborder Sciuravida as defined by to be polyphyletic and invalid. However hybrid speciation arguably leads to polyphyletic species. They lack a common multicellular ancestor, forming a polyphyletic group. Recognizing the polyphyletic nature of the genus "Euglena," Marin et al. The genus is now known to be polyphyletic. The Cronquist circumscription of Ranunculales is now known to be polyphyletic. Non-clavicipitaceous endophytes represent a polyphyletic group of organisms. However, there are alternate hypotheses which conclude that bats are polyphyletic. In Diatoms, the Heterokontophyta have polyphyletic turgor-resistant cell walls. Family Stenoplesictidae is a polyphyletic family of extinct civet-like feliforms.