Crater Hunters Find New Clues to Ancient Impact Storm

Crater Hunters Find New Clues to Ancient Impact Storm

Crater Hunters Find New Clues to Ancient Impact Storm
by Becky Oskin, Live Science, October 31, 2014
http://www.livescience.com/48565-meteor-crater-hunters-ordovician-impacts.html
http://news.discovery.com/space/asteroids-meteors-meteorites/crater-hunters-find-new-clues-to-ancient-impact-storm-141103.htm

The paper is:

Ormo, J., E. Sturkell, C. Alwmark, and J. Melosh, 2014,
First known Terrestrial Impact of a Binary Asteroid from
a Main Belt Breakup Event. Scientific Reports no. 4,
Article number 6724. Published online October 23, 2014
http://www.nature.com/srep/2014/141023/srep06724/full/srep06724.html

Yours,

Paul H.

Ancient Shark Fossil Reveals New Insights into Jaw Evolution

Ancient Shark Fossil Reveals New Insights into Jaw Evolution

Ancient Shark Fossil Reveals New Insights into
Jaw Evolution, American Museum of Natural
History, News and Blogs, April 16, 2014.
http://www.amnh.org/about-us/press-center/shark-fossil-reveals-new-insights-into-jaw-evolution
http://www.amnh.org/explore/news-blogs/research-posts/ancient-shark-fossil-reveals-new-insights-into-jaw-evolution?utm_source=social-media&utm_medium=twitter&utm_term=20140416-wed&utm_campaign=shark

New Fossil Takes A Bite Out Of Theory That
Sharks Barely Evolved by Geoff Brufiel, ALL
things Considered, NPR, April 16, 2014
http://www.npr.org/blogs/thetwo-way/2014/04/16/303727295/new-fossil-takes-a-bite-out-of-theory-that-sharks-barely-evolved

The paper is:

Pradel, A., J. G. Maisey, P. Tafforeau, R. H. Mapes , and
J. Mallatt, 2014, A Palaeozoic shark with osteichthyan-like
branchial arches. Nature. Published online 16 April 2014.
http://www.nature.com/nature/journal/vaop/ncurrent/full/nature13195.html

Yours,

Paul H.

The Ancient Meandering Rivers of Mars

The Ancient Meandering Rivers of Mars

The Ancient Meandering Rivers of Mars
by Ian O'Neill, Discovery News, Feb. 3, 2104
http://news.discovery.com/space/the-ancient-meandering-rivers-of-mars-140203.htm
http://dannyboston.blogspot.com/2014/02/the-ancient-meandering-rivers-of-mars.html

Sinuous Ridges and Meanders
ESP_034189_1740: Fluvial Processes
http://hirise.lpl.arizona.edu/ESP_034189_1740
http://hirise.lpl.arizona.edu/ESP_034044_1740
http://static.uahirise.org/images/2014/details/cut/ESP_034189_1740-2.jpg

Fairen, A. G., N. S. Davies, and S. W. Squyres, 2013,
Equatorial Ground Ice and Meandering Rivers on Mars
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2948.pdf
44th Lunar and Planetary Science Conference, The
Woodlands, Texas. LPI Contribution No. 1719, p.2948
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2948.pdf

Yours,

Paul H.