Navigation Links
Ancient sharks reared young in prehistoric river-delta nursery
Date:1/7/2014

Mazon Creek egg cases, and that the deposit's marine sites represent a shark nursery where females spawned and then departed, returning upstream to freshwater rivers and swamps.

"This is the first fossil evidence for a shark nursery that's based on both egg cases and the babies themselves," Sallan said. "It's also the earliest evidence for segregation, meaning that juveniles and adults were living in different locations, which implies migration into and out of these nursery waters."

The Mazon Creek deposit is known for its extremely diverse, well-preserved fossils, with more than 320 animal species identified, according to the Illinois State Museum.

Many of those animals lived in shallow marine bays. Other plants and animals lived in swampy areas along rivers that emptied into the bay. When the remains of all these plants and animals sank to the bottom of the bay, they were rapidly buried by mud washing in from the river, which preserved them.


'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Amber fossil reveals ancient reproduction in flowering plants
2. Ancient fig wasp lived tens of millions of years before figs
3. Ancient minerals: Which gave rise to life?
4. Unusual greenhouse gases may have raised ancient Martian temperature
5. Acid raid, ozone depletion contributed to ancient extinction
6. Ancient, modern DNA tell story of first humans in the Americas
7. Visualizing the past: Nondestructive imaging of ancient fossils
8. A new scorpion species from ancient Lycia
9. Reading ancient climate from plankton shells
10. The mysterious scarab beetles: 2 new species of the endangered ancient genus Gyronotus
11. Lampreys provide hints to ancient immune cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/25/2015)... , May 25, 2015  Australia,s market for ... stage, although 2014 saw the advent of several trials ... 24 April 2015 is expected to ignite interest in ... in Australia . This in turn ... industry and drive new partnerships amongst vendors and distributors. ...
(Date:5/21/2015)... According to a new ... Software, Services), by Applications (Surveillance (Airborne, Maritime, Land), ... (Military & Defense & Commercial) - Global Forecast ... is expected to grow from $7252.0 Million in ... Compound Annual Growth Rate (CAGR) of 6.6%. ...
(Date:5/20/2015)... 20, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... owned subsidiary, 3D-ID LLC, a company engaged in biometric ... the biometrics technology portion of the recently awarded TIES ... Department of the Army. 3D-ID LLC has ... government, law enforcement and security agencies. ...
Breaking Biology News(10 mins):Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4Thermal Imaging Market Worth $9,998.9 Million by 2020 2Thermal Imaging Market Worth $9,998.9 Million by 2020 3Thermal Imaging Market Worth $9,998.9 Million by 2020 4NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3
... , A group of Japanese researchers, who publish their findings ... Biomimetics , have succeeded in building a fully functional replica ... they have filmed their model butterfly flying. Among the ... wing area is very large relative to their body mass. ...
... to minimize the use of chemical herbicides need creative solutions ... research at the University of Illinois on Canada thistle, Sudangrass ... smother crop. "Sudangrass get very tall. It outcompetes the ... occur in the thistle," said U of I weed scientist ...
... NC Social status in paper wasps is established earlier ... month in the journal PLoS ONE . While ... appearance and are fixed from birth, paper wasp society is ... can climb the social ladder and become a queen. Now, ...
Cached Biology News:Sudangrass recommended to combat Canada thistle 2Sudangrass recommended to combat Canada thistle 3The making of a queen: Road to royalty begins early in paper wasps 2
(Date:5/28/2015)... 2015 Research and Markets( http://www.researchandmarkets.com/research/26qndf/nanobiotechnology ... PharmaBiotech,s new report "Nanobiotechnology Applications, Markets ... An increasing use of nanobiotechnology by ... Nanotechnology will be applied at all stages ... optimal delivery to diagnostic applications in clinical ...
(Date:5/28/2015)... Research and Markets( http://www.researchandmarkets.com/research/3nl6s2/neuroprotection ) has ... "Neuroprotection - Drugs, Markets and Companies" ... the role of neuroprotection in acute disorders such ... as well as in chronic diseases such as ... of damage to neural tissues are similar in ...
(Date:5/28/2015)... SAN CARLOS, Calif. , May 28, 2015 ... genetic testing, today announced a study published in ... that the Panorama single-nucleotide polymorphism (SNP)-based non-invasive prenatal ... in the first trimester. A ... indicates that complete molar pregnancies occur in about ...
(Date:5/28/2015)... BRUNSWICK, N.J. , May 28, 2015 /PRNewswire/ ... PDS0101, a cancer immunotherapy treatment targeting HPV-16, has ... Currently, pre-cervical cancer is treated ... offer a simple and effective non-surgical alternative. Results ... defense mechanisms (T-cells) to recognize, target, and kill ...
Breaking Biology Technology:Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 2Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 3Global Neuroprotection Market Report 2015-2024 - Drugs, Markets and Companies 2Global Neuroprotection Market Report 2015-2024 - Drugs, Markets and Companies 3First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 2First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 3PDS Biotechnology reports positive Phase I clinical trial results in proprietary HPV-Cancer Immunotherapy 2
... Dec. 20 /PRNewswire-FirstCall/ - Athersys,Inc. (Nasdaq: ATHX ... announced today that Athersys has received authorization from ... a Phase I clinical trial,evaluating the safety of ... The companies believe that this represents the first,clinical ...
... access to ZEVALIN(R) and other novel ... ... by the House and Senate extends the 2007 reimbursement methodology,for ... had implemented new hospital outpatient reimbursement rates,for 2008 for radiopharmaceuticals ...
... abuse treatment for teens and adults, HIGHLANDS RANCH, ... the expansion of its treatment services to,include a detox ... 17 as well,as adults, and the hospital has added ... dual diagnosis (substance abuse and,mental illness)., Teen suicide ...
Cached Biology Technology:Athersys and Angiotech announce authorization of Phase I intramyocardial stem cell U.S. clinical trial in acute myocardial infarction 2Athersys and Angiotech announce authorization of Phase I intramyocardial stem cell U.S. clinical trial in acute myocardial infarction 3Athersys and Angiotech announce authorization of Phase I intramyocardial stem cell U.S. clinical trial in acute myocardial infarction 4Athersys and Angiotech announce authorization of Phase I intramyocardial stem cell U.S. clinical trial in acute myocardial infarction 5Athersys and Angiotech announce authorization of Phase I intramyocardial stem cell U.S. clinical trial in acute myocardial infarction 6House and Senate Pass Medicare Legislation to Freeze 2008 Reimbursement for Therapeutic Radiopharmaceuticals at 2007 Levels 2House and Senate Pass Medicare Legislation to Freeze 2008 Reimbursement for Therapeutic Radiopharmaceuticals at 2007 Levels 3Highlands Behavioral Health Hospital Unveils New Substance Abuse Detox Program 2
... Each vial contains 200 g of lyophilized ... sequence (C-terminal amino acids 380-402; GLTPSAWEASSLRSSRHSGLSHF. ... antigen for production of Cayman's EP1 receptor ... be used in conjunction with this antibody ...
Anti-ZFP200 Family: Zinc Finger Peptide Sequence: CGKSFNHKTNLNKHER...
Complete cell culture media with cytokines...
Consists of 4 separate 100mM solutions (ATP,GTP,CTP and UTP pH 7.5) as sodium salts. 98% Pure by HPLC...
Biology Products: