Stage one of Raja the tiger’s evolution
Raja The Tiger’s Evolution, The tiger is one of the most
iconic extant animals, and its origin and evolution have been intensely
debated. Raja The Tiger’s Evolution, Fossils attributable to extant pantherine
species-lineages are less than 2 MYA and the earliest tiger fossils are from
the Calabrian, Lower Pleistocene.
Molecular studies predict a much younger age for the
divergence of modern tiger subspecies at <100 KYA, although their cranial
morphology is readily distinguishable, Raja The Tiger’s Evolution, indicating
that early Pleistocene tigers would likely have differed markedly anatomically
from extant tigers. Such inferences are hampered by the fact that well-known
fossil tiger material is middle to late Pleistocene in age.
Raja The Tiger’s Evolution, Here we describe a new
species of pantherine cat from Longdan, Gansu Province, China, Panthera
zdanskyi. Raja The Tiger’s Evolution, With an estimated age of 2.55–2.16 MYA it
represents the oldest complete skull of a pantherine cat hitherto found.
Although smaller, it appears morphologically to be surprisingly similar to
modern tigers considering its age.
Raja The Tiger’s Evolution, Morphological, morphometric,
and cladistic analyses are congruent in confirming its very close affinity to
the tiger, and it may be regarded as the most primitive species of the tiger
lineage, demonstrating the first unequivocal presence of a modern pantherine
species-lineage in the basal stage of the Pleistocene (Gelasian; traditionally
considered to be Late Pliocene).
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