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S. John
Attended University of Bonn
Lives in Spain
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The jaws are constructed with 182 fossilized teeth of the world's largest shark, Carcharocles megalodon, which went extinct about 2 million years ago. They represent the life work of Vito Bertucci, a jeweler-turned-fossil hunter who spent nearly two decades searching for the massive teeth used in the jaw.

For millions of years, C. megalodon, one of the largest predators to ever live on Earth, trolled nearly all the planet's oceans. Researchers have found evidence of the giant sharks stretching back 20 million years, but the species vanished from the fossil record about 2 million years ago.

The sharks went extinct at a time when glaciers covered large swaths of the globe, "and some people think that may be related to the extinction of this species, but it hasn't been established," said Catalina Pimiento, a Megalodon researcher with the University of Florida and the Smithsonian Tropical Research Institute.

Like sharks alive today, the prehistoric Megalodon's skeleton was made of cartilage, not bone, so the creatures left little behind for researchers to study. "The only remains you can find in the fossil record are the teeth, because they're hard enough to preserve through geologic time," Pimiento said.

Although that may not seem like much to go on, scientists have been able to use equations based on their knowledge of great white shark physiology — the modern-day species that most closely resembles Megalodon — to extrapolate just how big the ancient sharks grew.

http://www.livescience.com/14255-shark-jaws-worlds-largest-auction.html
 
Megalodon jaws | #Geology #GeologyPage

National Aquarium in Baltimore, USA.
© Serge Illaryonov
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Discovery of 'Jurassic butterflies' | #Geology #GeologyPage

IU paleobotanist David Dilcher is a co-author on a study out today in the Proceedings of the Royal Society: B that identifies a Jurassic age insect whose behavior and appearance closely mimic a butterfly -- but whose emergence on Earth predates the butterfly by about 40 million years.

Read more : http://www.geologypage.com/2016/02/discovery-of-jurassic-butterflies.html

Geology Page
www.geologypage.com
An image of the fossilized lacewing Oregramma illecebrosa (left) and the modern owl butterfly Caligo Memnon (right). Credit: Conrad C. Labandeira and Jorge Santiago-Blay. IU paleobotanist David Dilcher is a co-author on a stu...
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“A wonderful fact to reflect upon, that every human creature is constituted to be that profound secret and mystery to every other.”

Charles Dickens, an English writer and social critic, regarded as the greatest novelist of the Victorian era, was born #OnThisDay in 1812

Image: Dickens, Charles, Austrian National Library, public domain
Source: http://bit.ly/1TIjxl1
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The Greenland Mummies have shed new light on the every-day lives of Inuit people who lived over 500 years ago, providing fascinating insight into the culture and methods of survival of the indigenous people of Greenland in the fifteenth century. Yet for this particular group of women and children, there are still many unanswered questions.
#mummy #greenland
His little face still stares upwards, as if eternally waiting for his mother. From the moment he was discovered, the little Inuit baby captured hearts with his photograph plastered on magazines
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William Harley and Arthur Davidson unveiled their motorbikes for the first time,  1914.
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Painted probably around 1600, 'Landscape: A River among Mountains' is an early example of a landscape without religious subject matter: http://bit.ly/1YncwF6
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Hawaiian Encore
Rogelio: "Here's a rising moon under a starry sky at Punalu'u Beach, Big Island, Hawai'i"

Credit: Rogelio Bernal Andreo
Rogelio's website: DeepSkyColors.com
Location: Hawaii, United States
Date: February 6, 2016

+Rogelio Bernal Andreo 

#Astronomy #Space #Science #Moon #Moonlight #Lunar #Stars #Astrophotography #Photography #Panorama #Art #Earth #Hawaii #Island #BigIsland #Punaluu #Beach #Pacific #Ocean #USA #UnitedStates #Cosmos #Universe 
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Aurora with Leo and Jupiter Rising 
Alan: "Curtains of the aurora looking northeast and east toward Leo rising (at upper right) and Jupiter (at right), over the boreal forest of the Hudson Bay Lowlands near Churchill, Manitoba, on Feb 5, 2016." 

Credit: Alan Dyer
Alan's Website: http://amazingsky.net
Location: Hudson Bay Lowlands, Churchill, Manitoba
Date:  February 5, 2016
Technical details: This is a single frame from a 680-frame time-lapse. This is a 4-second exposure at f/1.4 with the Sigma 20mm Art lens and Nikon D750 at ISO 3200.

+Alan Dyer  

#Astronomy #Space #Science #Aurora #Borealis #NorthernLights #Stars #Leo #Planet #Jupiter #Astrophotography #Art #Earth
#HudsonBay #Churchill #Manitoba #Canada 
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Rruffite | #Geology #GeologyPage

Chemical Formula: Ca2Cu(AsO4)2·2H2O

Locality: Jote Mine, Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

Dimension area: 3.3 x 3.3 mm

Photo Copyright © Luigi Chiappino

Geology Page
www.geologypage.com
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Perseid Meteor, Lightning, Sky, Stars, Jupiter and Andromeda Galaxy

Learn more →
http://earthspacecircle.blogspot.com/2013/01/perseid-meteor-lightning-sky-stars.html

More Best Lightning Pictures on Earth Blog → http://EarthSpaceCircle.blogspot.com/p/lightings.html

Image Credit & Copyright: Robert Arn
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Phosphosiderite | #Geology #GeologyPage

Chemical Formula: FePO4·2H2O

Locality: Sandamap pegmatite (Sandamab pegmatite), Sandamap North Farm 115 (Sandamab), Usakos, Karibib District, Erongo Region, Namibia

Picture width is 2.7 mm

Photo Copyright © Elmar Lackner

Geology Page
www.geologypage.com
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Agardite-(Ce) | #Geology #GeologyPage

Chemical Formula: CeCu6(AsO4)3(OH)6·3H2O

Locality: Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Field of view: 1.4 mm

Photo Copyright © Edgar Müller

Geology Page
www.geologypage.com
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S.'s Collections
People
Have them in circles
2,821 people
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Education
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Introduction

"To laugh often and much;
to win the respect of intelligent people and the affection of children;
to earn the appreciation of honest critics and
to endure the betrayal of false friends.
To appreciate beauty;
to find the best in others;
to leave the world a bit better whether by a healthy child, a garden patch, or a redeemed social condition;
to know that even one life has breathed easier because you have lived.
This is to have succeeded."
R. W. Emerson

                     

Work
Occupation
Archaeologist, Paleontologist, Anthropologist
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Spain
Previously
London, UK - Viña del Mar, Chile - Atacama, Chile - Bonn, Germany
S. John's +1's are the things they like, agree with, or want to recommend.
The Archdukes Albert and Isabella Visiting a Collector's Cabinet - Hiero...
www.google.com

This painting of a private gallery or cabinet of a Flemish collector depicts a visit by Archdukes Albert and Isabella, the Habsburg governor

World’s oldest stone tools discovered in Kenya
news.sciencemag.org

Researchers unearth simple cutting stones dated to 3.3 million years ago—before the genus Homo arose

Grecia crea una comisión de expertos para auditar la deuda pública - elE...
www.eleconomista.es

La presidenta del Parlamento griego, Zoé Constandopulu, anunció hoy la creación de una comisión internacional de expertos que llevará a cabo

Huddling with thousands of climate refugees
wwf.panda.org

The lack of Arctic sea ice has forced tens of thousands of walruses ashore in Alaska. Join #WalrusPatrol to find out how you can help.

Home
www.space.com

Get the latest outer space and science news, NASA information, watch space flight videos at Space.com. View exclusive solar system Images, l

Rajoy se la puede pegar de nuevo
www.eldiario.es

Rajoy y sus asesores están metidos de lleno en una guerra limitada sustancialmente a su mundo. Fuera de éste van a convencer a muy pocos

VÍDEO | Debate Podemos-PSOE entre Pablo Iglesias y López Aguilar
www.eldiario.es

Las Mañanas de Cuatro ;ha emitido este martes un debate entre el eurodiputado de Podemos y el socialista grabado en Bruselas y en el que con

Dramatic landing attempt on a comet coming Wednesday | EarthSky.org
earthsky.org

Rosetta spacecraft will do the equivalent of transferring an object from one speeding bullet to another, when it tries to place its Philae l

Most “super” supermoon of 2014 on August 10 | EarthSky.org
earthsky.org

The closest and largest full moon of 2014 comes on August 10. It's the most super of the three full-moon supermoons in 2014.

Q&A: Why Sunni Extremists Are Destroying Ancient Religious Sites in ...
news.nationalgeographic.com

A rich and diverse history is being lost as Islamic extremists destroy religious sites in Mosul and run off the city's remaining Christians.

Artist Recreates His Own Childhood Drawings 20+ Years Later
www.boredpanda.com

Some time ago we wrote about Vancouver-based artist Wendy Tsao, who turns children’s drawings into toys. Telmo Pieper, a Dutch muralist, doe

May 2014 was the warmest May on record | Earth | EarthSky
earthsky.org

2014 has the potential to become the hottest year on record, if the trend from the first five months continues.

Museo Sorolla - Google Cultural Institute
www.google.com

The Sorolla Museum is located in the house of the artist Joaquín Sorolla, who was born in Valencia in 1863. Sorolla had this house built whe

This date in science: Happy birthday, Nicolaus Copernicus | EarthSky.org
earthsky.org

Copernicus broke open the medieval idea of an enclosed, Earth-centered universe. He set the stage for all of modern astronomy.

Spiral Galaxy With '2 Hearts' Spied By Hubble | Video
www.space.com

Some 15 million light years away, lies the Southern Pinwheel Galaxy (Messier 83) and its 'double' nucleus. It is believed that it may contai

Watch Sky Over Mauna Kea in Stunning Time-Lapse | Video
www.space.com

Time-lapse of the observatories atop Mauna Kea, Hawaii created by Sean Goebel.

Reflection Picture -- Bird Photo -- National Geographic Photo of the Day
photography.nationalgeographic.com

See a photo of a bird reflected in water in Hungary, from National Geographic.

Comet ISON's Ghost Seen By Two Spacecraft | Video
www.space.com

A wispy remnant of the comet survived its whip around the Sun, but is quickly starting to fade from sight. Imagery from NASA/ESA SOHO probe

Jan Brueghel the Elder - A Village Festival [1600]
gandalfsgallery.blogspot.com

Jan Brueghel was the son of Pieter Brueghel the Elder, born a year before his father died. He spent the years 1592-5 in Italy, where (unlike