• Starting today August 7th, 2024, in order to post in the Married Couples, Courting Couples, or Singles forums, you will not be allowed to post if you have your Marital status designated as private. Announcements will be made in the respective forums as well but please note that if yours is currently listed as Private, you will need to submit a ticket in the Support Area to have yours changed.

  • CF has always been a site that welcomes people from different backgrounds and beliefs to participate in discussion and even debate. That is the nature of its ministry. In view of recent events emotions are running very high. We need to remind people of some basic principles in debating on this site. We need to be civil when we express differences in opinion. No personal attacks. Avoid you, your statements. Don't characterize an entire political party with comparisons to Fascism or Communism or other extreme movements that committed atrocities. CF is not the place for broad brush or blanket statements about groups and political parties. Put the broad brushes and blankets away when you come to CF, better yet, put them in the incinerator. Debate had no place for them. We need to remember that people that commit acts of violence represent themselves or a small extreme faction.

Creation ex nihilo challenge

Oncedeceived

Senior Veteran
Jul 11, 2003
21,214
629
✟66,870.00
Gender
Female
Faith
Christian
Marital Status
Married
Plants before the Cambrian evidence:

First Land Plants and Fungi Changed Earth's Climate, Paving the Way for Explosive Evolution of Land Animals, New Gene Study Suggests — Eberly College of Science

I am taking a quote from the article but please read the entire article to have the full information.

"Our research shows that land plants and fungi evolved much earlier than previously thought — before the Snowball Earth and Cambrian Explosion events — suggesting their presence could have had a profound effect on the climate and the evolution of life on Earth," says Blair Hedges, an evolutionary biologist and leader of the Penn State research team that performed the study.
 
Upvote 0

RickG

Senior Veteran
Site Supporter
Oct 1, 2011
10,092
1,430
Georgia
✟128,873.00
Faith
Presbyterian
Marital Status
Married
Plants before the Cambrian evidence:

First Land Plants and Fungi Changed Earth's Climate, Paving the Way for Explosive Evolution of Land Animals, New Gene Study Suggests — Eberly College of Science

I am taking a quote from the article but please read the entire article to have the full information.

"Our research shows that land plants and fungi evolved much earlier than previously thought — before the Snowball Earth and Cambrian Explosion events — suggesting their presence could have had a profound effect on the climate and the evolution of life on Earth," says Blair Hedges, an evolutionary biologist and leader of the Penn State research team that performed the study.

The full paper is here: http://ebme.marine.rutgers.edu/Hist...ll2008/Week10a/Heckman_et_al_Science_2008.pdf

It appears that they are actually running a model rather than having actual fossils. Since the paper was published in 2001 I'll have to check out some of the citations concerning that paper to see if it stands subsequent scrutiny. One thing that throws up a flag for me is the idea that those plants are responsible for oxygenation of Earth's atmosphere. The reason I would question that is that I don't see any land life being able to survive without an ozone layer. All of the papers I have previously read pertaining to the origin of Earth Atmosphere (and it's been quite a few), show photosynthesis occurring in shallow seas where UVB and UVC cannot penetrate. More later.
 
Upvote 0

Oncedeceived

Senior Veteran
Jul 11, 2003
21,214
629
✟66,870.00
Gender
Female
Faith
Christian
Marital Status
Married
The full paper is here: http://ebme.marine.rutgers.edu/Hist...ll2008/Week10a/Heckman_et_al_Science_2008.pdf

It appears that they are actually running a model rather than having actual fossils. Since the paper was published in 2001 I'll have to check out some of the citations concerning that paper to see if it stands subsequent scrutiny. One thing that throws up a flag for me is the idea that those plants are responsible for oxygenation of Earth's atmosphere. The reason I would question that is that I don't see any land life being able to survive without an ozone layer. All of the papers I have previously read pertaining to the origin of Earth Atmosphere (and it's been quite a few), show photosynthesis occurring in shallow seas where UVB and UVC cannot penetrate. More later.

Here is something newer.

Simple Seaweeds May Be Earth’s First Plants | Science | WIRED
 
Upvote 0

RickG

Senior Veteran
Site Supporter
Oct 1, 2011
10,092
1,430
Georgia
✟128,873.00
Faith
Presbyterian
Marital Status
Married
Upvote 0

Oncedeceived

Senior Veteran
Jul 11, 2003
21,214
629
✟66,870.00
Gender
Female
Faith
Christian
Marital Status
Married
Yes, marine, not terrestrial.

I think what (Heckman et al, 2001) did was to model a sequence that suggested the possibility they reported. I would agree with that. But I think they shot themselves in the foot overlooking the UV problem.

Oh right, I didn't catch that. I am interested in whatever you find. Thanks.
 
Upvote 0