Synonymer & Information om | Engelska ordet PLESIOMORPHIC

Exempel på hur man kan använda PLESIOMORPHIC i en mening

• In particular Enaliornis, which was apparently an ancestral and plesiomorphic member of that order, was sometimes used to support claims of Albian (Early Cretaceous) Gaviiformes.
• It thus represents a remarkable case of morphological convergence, or perhaps it is simply extremely plesiomorphic in morphology (the buttonquails, meanwhile, having turned out to be a very basal offshoot of the wader radiation).
• Most species seem readily distinguishable by morphological characteristics, but for some time the genus was used as a wastebin taxon for smaller chameleons from sub-Saharan Africa with plesiomorphic hemipenises.
• The order Myctophiformes is anatomically similar to the grinners (Aulopiformes), but their pharyngobranchials and retractor muscles are more plesiomorphic.
• The term "discoglossid" has also been used to refer to many primitive fossil frogs that share plesiomorphic (ancestral) similities to alytids, but that are probably not closely related.
• Amphizoidae share some plesiomorphic features with Carabidae, such as slender ambulatory legs, and other characteristics with Dytiscidae, such as large sensorial lobes on the epipharynx.
• Because cormorants are closer relatives of gannets and anhingas (which have no prominent gular pouch) than of frigatebirds or pelicans, it can be seen that the gular pouch is either plesiomorphic or was acquired by parallel evolution.
• These specimens of Yalkaparidon exhibit a melange of characters: the molars are zalambdodont (a distinctive tooth type also found in the marsupial mole Notoryctes, the living placental 'insectivores' Solenodon, tenrecs and golden moles, as well as a number of fossil groups); the incisors are very large and hypselodont (open-rooted and hence ever-growing, similar to those of rodents); the basicranial region of the only known skull is very primitive, somewhat similar to those of plesiomorphic bandicoots.
• The formation of a dikaryon is a plesiomorphic character for the subkingdom Dikarya, which consists of the Basidiomycota and the Ascomycota.
• The terms "plesiomorphy" and "apomorphy" are typically used in the technical literature: for example, when a plesiomorphic trait is shared by more than one member of a clade, the trait is called a symplesiomorphy, that is, a shared primitive trait; a shared derived trait is a synapomorphy.
• Elytra are a synapomorphy for placing any living species into the beetle clade, Elytra are plesiomorphic between clades of beetles, e.
• However, these species share few synapomorphies other than plesiomorphic characteristics of miacids in general.
• Sinornithomimus renders some synapomorphies of ornithomimids plesiomorphic, while also differentiating Asian ornithomimid rhamphothecae from North American ones, based on maxillary vascular foramina found in the latter.
• While sharing many plesiomorphic traits with other non-mammaliaform cynodonts, it possessed a special, secondarily evolved jaw joint between the dentary and the squamosal bones, which in more derived taxa would replace the primitive tetrapod one between the articular and quadrate bones.
• However, it differed from the American form by details in the anterior caudal vertebrae and from Barosaurus and Diplodocus both by its plesiomorphic hindlimb proportions with a short lower leg.
• Both specimens preserve a relatively complete femur: however, the features of both (an anteromedially directed head, a relatively long fourth trochanter and a trochanteric shelf) are plesiomorphic and thus do not indicate conspecifity or clade membership.
• Stegosaurids are distinguished from other stegosaurians in that the former have lost the plesiomorphic pre-maxillary teeth and lateral scute rows along the trunk.
• The "presence" of a given retrotransposon in related taxa suggests their orthologous integration, a derived condition acquired via a common ancestry, while the "absence" of particular elements indicates the plesiomorphic condition prior to integration in more distant taxa.
• For example, it retains an intertemporal bone, which is the plesiomorphic ("primitive") condition present in animals like Ventastega and embolomeres.
• Alternative scenarios in which Dimetrodon, Sphenacodon, and Ctenospondylus are united in a deep-skulled clade (Sphenacodontinae) that excludes Secodontosaurus require that either (1) tall, rod-like neural spines are plesiomorphic in the Sphenacodontidae so that the common ancestor of all four genera had a tall dorsal sail that was retained in Secodontosaurus and in Dimetrodon, but was lost by character reversal in Sphenacodon, or (2) the common ancestor of all four genera lacked a tall dorsal sail (and so more closely resembled Sphenacodon), in which case both Secodontosaurus and Dimetrodon would have evolved their very similar-looking tall sails completely independently as an apomorphy.

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