An electric blue Parksosaurus warreni “dances” among a wide variety of flowering plants known from different locations across Alaska and Russia during the Cretaceous era. While we are most familiar with the Pleistocene-era Bering land bridge connecting North America and Eurasia, evidence of many shared fossil plant and animal species show Alaska also bridged the continents during the late Cretaceous.
This image begins a nearly eight-year attempt to start and then finish a complete Elasmosaurus skeletal.
Augusta, J., & Burian, Z. (1964). Prehistoric sea monsters. P. Hamlyn.
Callaway, J. M., & Nicholls, E. L. (Eds.). (1997). Ancient marine reptiles. Academic Press.
[Ch. 6 and 7.]
Carroll, R. L. (1988). Vertebrate Paleontology And Evolution. W. H. Freeman and Company.
Ellis, R. (1985). The book of whales. Alfred a Knopf Inc.
Everhart, M. J. (2017). Oceans of Kansas: a natural history of the Western Interior Sea. Indiana University Press.
A scene of the estuaries of Pleistocene era California depicting a scavenging short-faced bear, Arctodus simus, feeding off a spawned-out female Oncorhynchus rastrosus, the "saber-toothed" salmon, with an entourage of ancestral California gulls, Larus californicus. In the water, a pair of speculative ocean-phase Oncorhynchus enters the estuary looking for food, while a pair of spawning males jockey for status and position, ready to meet their fate upstream.