by Richard William Nelson | Jun 26, 2012
Clues from fossilized mating turtles (pictured left) point to an enormous and sudden geological event. In last week’s edition of Biology Letters published by the Royal Society, Walter Joyce (pictured right) of Geosciences at the University of Tübingen in Germany.
The letter, entitled “Caught in the act: the first record of copulating fossil vertebrates,” updates information on the fossilized turtles discovered 30 years ago.
ABC News, BBC News, National Geographic, New York Daily News, MSNBC, FOX News, and Nature and Science journals featured the story, an unprecedented finding.
Continue Reading
by Richard William Nelson | May 22, 2012
Andrew J. Wendruff and Mark V. H. Wilson of the University of Alberta added a new dimension to the ongoing coelacanth saga this week in the paper “A fork-tailed coelacanth, Rebellatrix divaricerca,” published in the Journal of Vertebrate Paleontology.
In the paper, Wendruff and Wilson present a newly discovered coelacanth species found surprisingly on the rocky slopes of the Canadian Rockies, British Columbia.
The species named Rebellatrix divaricerca means “rebel coelacanth (with a) forked tail.” Far different from today’s Indian Ocean coelacanths, these ancient rebel fast-swimming predators further undermine attempts to develop a cohesive coelacanth evolution saga.
Continue Reading
by Richard William Nelson | Apr 3, 2012
The sequence of biological events leading to hominin locomotion has long intrigued evolution scientists.
Last week, the journal Nature reported on a hominin-like foot discovered in Eastern Africa.
Entitled “A new hominin foot from Ethiopia shows multiple Pliocene bipedal adaptations,” the finding raises questions about the evolution of hominin locomotion.
Continue Reading
by Richard William Nelson | Dec 11, 2011
Anomalocaris, an ancient three-foot-long shrimp-like creature, is an evolutionary anomaly. Anomalocaris (pictured left) is Greek for “anomaly shrimp.”
The origin of this marine creature’s compound eye, a species first discovered by Charles Doolittle Walcott in the Canadian Rockies at an elevation of over 7,000 feet above sea level, has long puzzled evolution scientists. Where did the freakish eyes originate, and how did they end up in the Canadian Rockies?
The findings have no natural explanation.
Continue Reading
by Richard William Nelson | Sep 18, 2011
In the journal Science, the September 9 edition, a collection of reports generated a storm of controversy on the evolutionary status of Australopithecus sediba. Nicknamed Karabo, meaning “answers,” the fossils have emerged as the latest human ancestor candidate.
While last week’s topic focused on Karabo’s transitional links, this week examines the dating of these two remarkable fossilized skeletons recovered from the Malapa site in South Africa.
The Karabo dating surprised the investigators.
Continue Reading
Clues from fossilized mating turtles (pictured left) point to an enormous and sudden geological event. In last week’s edition of Biology Letters published by the Royal Society, Walter Joyce (pictured right) of Geosciences at the University of Tübingen in Germany.
Andrew J. Wendruff
The sequence of biological events leading to hominin locomotion has long intrigued evolution scientists.
