HOME >> BIOLOGY >> NEWS
Possible Human Ancestors In Spain 780,000 Years Ago

Paleomagnetic dating indicates possible human ancestors lived in Spain more than 780,000 years ago, says U-M expert.

University of Michigan
412 Maynard St. Ann Arbor, MI 48109-1399

TORONTO---Some 780,000 years ago, the first Europeans were using simple stone tools to scratch out a living in a cave called Gran Dolina in the Atapuerca Mountains of northern Spain. Whether they were direct ancestors of modern Homo sapiens or an evolutionary dead end like the Neanderthals is for anthropologists to decide. But Josep Pares is certain of one thing: they were living there 780,000 years ago.

An expert on paleomagnetic dating, Pares, who is now a University of Michigan research scientist, first reported the age of the Atapuerca hominid fossils in an article published in Science on Aug. 11, 1995, with colleague Alfredo Perez-Gonzalez. Since no hominid fossils or tools older than 500,000 years had ever been discovered in Europe before, Pares' date was highly controversial.

Pares based his date for the Gran Dolina fossils on the orientation of magnetic minerals in the rock layer in which the fossils were found. In the early 1900s, scientists discovered that magnetic minerals in rocks work like tiny compass needles---pointing toward the location of the Earth's magnetic field at the time the rock was created.

Today Earth's magnetic field lies to the north, but it wasn't always that way. The field has switched back and forth between north and south many times in the Earth's 4.5-billion-year history. The last major switch from south to north, which scientists call the Matuyama/Brunhes reversal, took place about 780,000 years ago. This reversal marks the boundary between the lower and middle Pleistocene geological epochs.

"Because the Gran Dolina fossils were found below the Matuyama/Brunhes boundary with a clear signal of reversed polarity, we are confident the date is accurate," Pares said.

At the Geological Soc
'"/>

Contact: Sally Pobojewski
pobo@umich.edu
734-647-1844
University of Michigan
27-Oct-1998


Page: 1 2

Related biology news :

1. Possible new cure for psoriasis
2. Possible link discovered between gene responsible for blood vessel development and ACD in newborns
3. Possible mechanism for link between diabetes and Alzheimers disease discovered
4. Scientists switch components in cell circuits: Possible new technology, therapy
5. Possible new cell type found in developing inner ear
6. Possible gene for form of mental retardation, brain development identified
7. Possible cause and treatment for shock uncovered by UC San Diego bioengineers
8. Reproductive Signals Affect Lifespan In Roundworm C. Elegans, Offering Possible Insight Into Human Aging Process
9. UV Rays, Fire And Flame Retardants To Be Reviewed For Possible Listing As Carcinogens, NTP Announces
10. Coffee Without Addiction, Possible New Treatment For Osteoporosis, Wrinkle-Free Cotton, And More
11. Mechanism For Fungal Adherence Found, Possible Key To Disease

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/31/2020)... FRANCISCO (PRWEB) , ... July 30, 2020 , ... ... maturing prescription digital therapeutics product portfolio with a near term focus on Type ... biotech and pharma commercialization experience across multiple therapeutic areas and classes. As Chief ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... effectiveness of the Invictus Medical Neoasis™ active noise control device to attenuate typical ... that the Neoasis™ device attenuated the alarm sounds from patient monitors, ventilators and ...
(Date:7/10/2020)... Va. (PRWEB) , ... July 08, 2020 , ... ... Latest on Cell and Gene Therapy Regulation, An FDAnews Webinar, Wednesday, July 22, ... need a comparability study, but what is the most effective way to complete ...
Breaking Biology News(10 mins):
(Date:8/15/2020)... ... August 13, 2020 , ... Inc. magazine today revealed ... prestigious ranking of the nation’s fastest-growing private companies. The list represents a unique ... independent small businesses. Intuit, Zappos, Under Armour, Microsoft, Patagonia, and many other well-known ...
(Date:8/12/2020)... ... August 11, 2020 , ... Modality ... for free its new white paper – Simulated Transport Methodologies. Regulatory expectations ... biologics licensing application (BLA). In response, Modality Solutions shares an explanation of ...
(Date:8/7/2020)... Texas (PRWEB) , ... August 06, 2020 , ... ... and DNA vaccine industries, announces it has closed on the purchase of greenfield ... Park in Conroe, TX and includes over 21 acres in the initial acquisition, ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... Introducing Ardent ... for transformative growth, , Known as MediVet Biologics since its ... , The new Ardent Animal Health will build on its base of ...
Breaking Biology Technology:
Cached News: