Melanosomes are organelles that produce and store melanin, a widespread biological
pigment with a unique suite of properties including high refractive index, semiconducting …

Melanins are widespread pigments in vertebrates, with important roles in visual signaling,
UV protection, and homeostasis. Fossil evidence of melanin and melanin-bearing …

The total-evidence approach to divergence time dating uses molecular and morphological
data from extant and fossil species to infer phylogenetic relationships, species divergence …

BACKGROUND More than 30 different lineages of amphibians, reptiles, birds, and
mammals have independently invaded oceans ecosystems. Prominent examples include …

Well-preserved fossils of pivotal early bird and nonavian theropod species have provided
unequivocal evidence for feathers and/or downlike integuments. Recent studies have …

In living organisms, color patterns, behavior, and ecology are closely linked. Thus, detection
of fossil pigments may permit inferences about important aspects of ancient animal ecology …