| The vertical lines represent the actual time ranges of equid genera or clades. |
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| Among these clades are such diverse forms as arawanas, knifefishes, mormyrids, eels, tarpon, and herring. |
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| The 13 living genera are relicts of this earlier diversification and represent one of the four major clades of placental mammals. |
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| Even the dentally unimaginative dinosaur clades often did better than this. |
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| Therefore, we cannot support Durham's derivation of New World lunulate clades from an ancestor in common with protoscutellids, either. |
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| Both the water ferns and Ceratopteris occur in clades with terrestrial ferns and the aquatic habit appears to be derived in these lineages. |
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| All these taxa are relevant to the history of the conquest of land by vertebrates because they are outside the large clades of extant tetrapods. |
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| Both clades, together with H. bastetanum, form a trichotomy that it is separate from H. suaveolens. |
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| Marriages between members of clades with more than two sexes are known as trigamous, quadrigamous, and so on. |
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| Was survival of the various clades through various biotic crises just a matter of luck? |
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| The dorsal siphuncles of the Clymeniida tend to be larger than the ventral siphuncles of other ammonoid clades. |
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| Divergence times among clades in the ochrocephala complex were estimated using two different molecular clock calibrations. |
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| Both clades show some overlap in their geographic distribution around the equator. |
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| Warren et al. estimated rates of divergence for both ND3 and cytochrome b for two clades of Indian Ocean sunbirds using estimates of island age. |
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| Species in the two primary clades in the genus tend to be found in different parts of North America. |
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| The same mode of increase has been adopted independently in phylogenetically distinct clades. |
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| Fossils are often not ancestors of extant taxa, but instead may be extinct sister groups to modern taxa or clades. |
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| Sinistral clades also did not originate in the less planktonically productive insular Indo-West Pacific and Caribbean. |
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| These clades are labeled together with four diverse MSY1 codes from each lineage to indicate the diagnostic minisatellite structures. |
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| However, the degree of dimorphism in some clades of mammals, including perissodactyls, does not correlate with the degree of polygyny. |
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| Instead, species that differ in timing of gamete release tend to constitute genetically distinct clades. |
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| Although sinistral individuals are known in many normally dextral species, left-handedness as a characteristic of species is rare in most gastropod clades. |
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| The temporal distribution of first appearances of sinistral clades as documented by fossils generally differs from that of clades with a labral tooth. |
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| Polymixia, the beardfish, may belong in the Beryciformes but recent work suggests that it is the sister-group to the paracanthopterygian plus acanthopterygian clades. |
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| Of all molluscan clades, only the gastropods undergo torsion. |
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| The four species of owls divide into two strongly supported clades, corresponding to the widely accepted bifurcation of the owls into two families, Tytonidae and Strigidae. |
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| These and other attributes have been used to develop scenarios for the origin and evolution of New World sand dollar clades, notably the lunulate forms. |
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| In contrast, our molecular data show that Petrocosmea consists of five clades corroborated by morphological data as prementioned. |
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| This division into four major clades was then confirmed using morphology alone. |
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| There is evidence that some clades of flypaper traps have evolved from morphologically more complex traps such as pitchers. |
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| We here distinguish clade A from other clades based on the retention of a caulescent habit and moderate floral zygomorphy. |
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| In this case we have identified three well-supported clades with several molecular synapomorphies in the 16S and H3 genes. |
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| Assemblages in mainland habitats that consist of species in different families and other higher order clades are much more complex. |
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| A number of clades of American geckos seem to have rafted over from Africa during both the Paleogene and Neogene. |
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| However, recent DNA analysis has identified as few as five main clades which contain all extant brown bears. |
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| The phylogeny of the rodents places them in the clades Glires, Euarchontoglires and Boreoeutheria. |
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| Mass extinctions are often followed by adaptive radiations as existing clades expand to occupy the ecospace emptied by the extinction. |
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| Despite their nearly synchronous collections in 2004, these sequences fell into distinct clades in the maximum clade credibility phylogeny, indicating population subdivision. |
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| Molecular data support separate Scombroid and xiphioid clades. |
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| This diet appears to have been diversified in two clades of relatively small largeheaded and shortbodied temnospondyls, the zatracheids and dissorophoids. |
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| It is one of two sister clades corresponding to genera in the Narcisseae, being distinguished from Sternbergia by the presence of a paraperigonium, and is monophyletic. |
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| While these three or four groups, loosely circumscribed, are an informal arrangement, they probably contain several distinct clades in their entirety. |
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| Conrad, Kirsten Jenkins, Thomas Lehmann, and others did not support Osteolaeminae as a true clade but rather a paraphyletic group consisting of two smaller clades. |
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| Recalibrations of genetic and morphological diversity rates have suggested a Late Cretaceous origin for placentals, and a Paleocene origin for most modern clades. |
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| Names of SNP mutations can also be used to name clades or haplogroups. |
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| Evolutionary diversification of clades of squamate reptiles. |
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| Principal well-supported clades recovered in the phylogenetic analyses provided the foundation upon which we assessed phenotypic differences to make generic recommendations. |
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| Although superinfection by strains from different clades has been reported previously, this is the first published report of infection by two strains from the same clade. |
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