But based on the fossil auction at Guernsey's, one of the largest to date, the thirst for expensive fossils may be cooling.
Divergence times between paddlefish paralogs were estimated using the software r8s (Sanderson 2002, 2003), which does not assume a molecular clock and requires a calibration based on the fossil record for at least one node.
"The California grays looked exactly like the bones that were dug up in Scandinavia back in the 19th century," Ervan Garrison, a geoarchaeology professor at the University of Georgia, said in a statement, describing it as "one of the first instances where a living species was named based on the fossil evidence".
Based on the fossil content, the original turbidite sequence would have been deposited during Devonian to Carboniferous times.
Branch lengths reflect divergence time estimates based on the fossil record.
Based on the fossil record, the earliest known ears of this type date to 200 million years ago or later.
"Based on the fossil record, about 521 million years ago trilobites exploded out of the Cambrian Period and onto the scene.
However, some evidence of warm-water intrusion from the southern strait has been proposed, based on the fossil records of diatoms, mollusks, and ostracods in on-land sections.
Evidence based on the fossil record, serology, karyology, behavior, anatomy, and reproduction reflect closer affinities with Procyonidae than Ursidae.
Their research, based on the fossil record and published in the Proceedings of the National Academy of Sciences, estimates the number of generations for 28 mammals to become larger and smaller over the past 70 million years.
Lemurs were traditionally thought to have evolved during the Eocene (55 to 37 mya) based on the fossil record, although molecular tests suggest the Paleocene (66 to 56 mya) or later.
