An internal node of a phylogenetic tree is described as a polytomy or multifurcation if (i) it is in a rooted tree and is linked to three or more child...

hard polytomy of nine clades as the base of Neoaves. An analysis by Houde and colleagues in 2019 recovered Columbea and a reduced hard polytomy of six...

the position of Emballonuroidea and the relationships between Rhinolophidae, Hipposideridae, and Rhinonycteridae, which are represented as polytomies....

The first placed it in a polytomy including Neovenator and other megaraptorans, while the second placed it in a polytomy including other basal carcharodontosaurians;...

however in one analysis the nautiloids, octopus and teuthids plot as a polytomy. Some molecular phylogenies do not recover the mineralized coleoids (Spirula...

morphology was accepted, until a 2024 study found Emmonsaspis to be in a polytomy with Metaspriggina and Nuucichthys as a stem-group vertebrate. Lerosey-Aubril...

William R.; Mouton, P. Le Fras N. (2011). "Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae)"...

phylogenetic analysis of Otero et al., 2015 found Sauropodomorpha to be in a polytomy with Agnosphitys and Theropoda within Eusaurischia, with Herrerasauridae...

entomophagous, entomophilous, epitome, monatomic, pentatomic, polyatomic, polytomy, Temnospondyli, tmesis, tome, tomogram, tomography, trichotomous, trichotomy...

most trees including Pyroraptor, this caused a polytomy as seen in the cladogram below. This polytomy was also repeated in a phylogeny of Archaeopteryx...

2021 study found the genus to be a lepidosaur of uncertain position, in a polytomy with Squamata and Rhynchocephalia. In 2022, the extinct genus Cryptovaranoides...

majority of these phylogenomic studies, conveys this uncertainty with a polytomy. "ParaHox" genes are usually referred to in CamelCase and the original...

William R.; Mouton, P. Le Fras N. (2011). "Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae)"...

and the overall nature of Pelmatozoa remains unresolved. The four-way polytomy including the Eleutherozoa and Crinoidea shows either Camptostroma or Gogia...

Abelisauroidea, with some variance as to which taxa are placed into basal polytomy. Abelisauroidea is further divided into the Abelisauridae and Noasauridae...

Alexander (2016). "The phylogenomic forest of bird trees contains a hard polytomy at the root of Neoaves". Zoologica Scripta. 45: 50–62. doi:10.1111/zsc...

 louisae was the most basal species, followed by FMNH P25112, and then a polytomy of A. ajax, A. parvus, and A. excelsus. Their analysis was revised and...

well supported clade. Seven species endemic to the Canary Islands form a polytomy, resolved differently in different analyses, in which subtaxa of some species...

Apteryformes+Aepyornithformes and Tinamiformes+Dinornithformes) are an effective polytomy, with only slightly more support for Novaeratitae over the alternative...

the kouprey represents a distinct species unrelated to zebu, forming a polytomy with the banteng and gaur due to incomplete lineage sorting, suggesting...

2018, Bernardo González Riga and colleagues found Patagotitan to form a polytomy with Puertasaurus and Notocolossus, with Argentinosaurus being closest...

Summary of relationships of gnathiferans in recent studies including Chaetognatha within the clade, with disputed relationships represented as polytomies...

evolution of the avian bauplan, Cau (2018) found in the parsimony analysis a polytomy between herrerasaur-grade taxa, Sauropodomorpha and the controversial Ornithoscelida...

analyses, Rolando et al. (2022) recovered Maip as a derived megaraptorid in a polytomy with other Argentinian megaraptorids. They also noted the presence of two...

avialans, but as basal members of the clade Paraves remaining in unresolved polytomy with alvarezsaurids and the clade Eumaniraptora (containing avialans and...

Timaliidae that were studied across what essentially was a badly resolved polytomy with Old World warblers and white-eyes. As the typical warblers (genus...

basalmost batoids, followed by the Rhinopristiformes, this analysis finds a polytomy between skates, electric rays, and thornbacks at the base of Batoidea,...

outside the family, and many taxa within the Metriacanthosauridae were in polytomy. However, the positions of Xuanhanosaurus and Poekilopleuron were very...

phylogenetic analysis and recovered it within Therizinosauroidea in a polytomy with Alxasaurus, Enigmosaurus and therizinosaurids. In 1997 Dong Zhiming...

Dahlia. Outside of these three clades lie D. tubulata and D. merckii as a polytomy. Horticulturally the sections retain some usage, section Pseudodendron...