Results 251 to 260 of about 24,601 (294)

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Correction: Molecular species delimitation of shrub frogs of the genus Pseudophilautus (Anura, Rhacophoridae). [PDF]

open access: yesPLoS One
Ellepola G   +6 more
europepmc   +1 more source

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

open access: yesThe Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso   +2 more
wiley   +1 more source

Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes. [PDF]

open access: yesBMC Plant Biol
Jiang Y   +9 more
europepmc   +1 more source

Global species delimitation of the cosmopolitan marine littoral earthworm Pontodrilus litoralis (Grube, 1855). [PDF]

open access: yesSci Rep
Seesamut T   +6 more
europepmc   +1 more source

Species Concepts and Species Delimitation [PDF]

open access: yesSystematic Biology, 2007
The issue of species delimitation has long been confused with that of species conceptualization, leading to a half century of controversy concerning both the definition of the species category and methods for inferring the boundaries and numbers of species. Alternative species concepts agree in treating existence as a separately evolving metapopulation

exaly   +4 more sources

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