Sentence examples for earliest representatives from inspiring English sources

Nonetheless, among the genera that may have been included in this wave of dispersal were the earliest representatives of Lutra (which may represent Lontra, given that New World river otters have been reclassified into Lontra) and Mustela, both of which are first recorded in North America from the Late Miocene to Early Pliocene (~5.9-4.6 MYA [ 19]).

However, since the earliest representatives of Au. afarensis were dated to approximately 3.75 million years ago, there remained a large gap in time between the last common ancestor that humans shared with chimpanzees (7 million years ago) and the emergence of Au. afarensis.

The ancestors of today's frogs and toads crawled out of the water some four hundred million years ago, and by two hundred and fifty million years ago the earliest representatives of what became the modern amphibian clades — one includes frogs and toads, a second newts and salamanders — had evolved.

While debate remains regarding whether their earliest representatives were aquatic or terrestrial (Dunlop and Webster 1999; Kamenz et al. 2008), by the Carboniferous, there is little question the scorpions were land-dwelling (Jeram 1994a).

Such rapid action potentials are thought to have evolved with the first metazoans, with cnidarians being the earliest representatives.

The fossil record of beavers (Castoridae) comprises roughly 30 genera, with the earliest representatives appearing in the latest Eocene of North America.

Yochelson considered this specimen to represent the earliest representative of the Patellogastropoda and therefore a gastropod rather than a monoplacophoran.

Although Yochelson (1988) considers this specimen to represent the earliest representative of the Patellogastropoda, I would argue that the Y-shape structure on the posterior margin of the steinkern represents the efferent mantle vessel, probably homologous with the circumpallial veins of the Pleurotomarioidea, Haliotoidea, Fissurelloidea, and Patellogastropoda.

Given the topology recovered in the present analysis (Figure 2), Limnofregata represents the earliest representative of Steganopodes, and suggests that the lineages leading to Fregatidae and Suloidea diverged by the early Eocene.

This species is therefore the earliest representative of this lineage, previously documented as early as the Lower Permian [ 33- 35].

Earlier, representatives from the United Nations Children's Fund had paid a visit, bearing toys.