Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 66 (9078 total)
116 online now:
dwise1, PaulK (2 members, 114 visitors)
Newest Member: harveyspecter
Post Volume: Total: 895,180 Year: 6,292/6,534 Month: 485/650 Week: 23/232 Day: 0/23 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Fossils - New Discoveries
AZPaul3
Member
Posts: 6835
From: Phoenix
Joined: 11-06-2006
Member Rating: 3.4


(1)
Message 16 of 22 (867169)
11-21-2019 9:02 AM


Satan's Fossil Found
Conclusive proof that Satan evolved here on earth. Still hunting fossils of god.

Beautifully Preserved Skull of 'Biblical Snake' with Hind Legs Discovered

Not sorry.

Edited by AZPaul3, : No reason given.


Eschew obfuscation. Habituate elucidation.

Replies to this message:
 Message 17 by Phat, posted 11-22-2019 4:01 AM AZPaul3 has seen this message but not replied

  
Phat
Member
Posts: 16087
From: Denver,Colorado USA
Joined: 12-30-2003


(1)
Message 17 of 22 (867205)
11-22-2019 4:01 AM
Reply to: Message 16 by AZPaul3
11-21-2019 9:02 AM


Re: Satan's Fossil Found
So the garden of Eden was in Argentina? I'm not sorry either.

Chance as a real force is a myth. It has no basis in reality and no place in scientific inquiry. For science and philosophy to continue to advance in knowledge, chance must be demythologized once and for all. ~RC Sproul
"A lie can travel half way around the world while the truth is putting on its shoes." ~Mark Twain "
~"We, humans, are engaged in an ongoing war of ideologies. I see it in this microcosm of EvC Forum just as I see it in the governments and attitudes of people throughout the world. Take your pick: Oppression or Seduction .
"~Thugpreacha

You can "get answers" by watching the ducks. That doesn't mean the answers are coming from them.~Ringo

“As the fear of God is the beginning of wisdom, so the denial of God is the height of foolishness.”
? R.C. Sproul, Essential Truths of the Christian Faith


This message is a reply to:
 Message 16 by AZPaul3, posted 11-21-2019 9:02 AM AZPaul3 has seen this message but not replied

  
caffeine
Member (Idle past 342 days)
Posts: 1800
From: Prague, Czech Republic
Joined: 10-22-2008


(3)
Message 18 of 22 (867209)
11-22-2019 7:24 AM


This is not at all new, but I enjoyed reading through it and thought I'd share.

News reports of fossils such as get shared here are always about the interesting fossils. The ones that are atypically well preserved, or that represent something completely new, or that transform our understanding.

In an attempt to redress the balance, I give you the Grant Museum of Zoology's blog series (sadly no longer updated): Underwhelming Fish Fossil of the Month!, focusing especially on the poorly preserved, fragmentary and uninformative fossils that fill museum drawers and which no one ever sees.


  
Tanypteryx
Member
Posts: 3435
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 4.2


(1)
Message 19 of 22 (887812)
08-22-2021 3:58 PM


Unexpected Anatomical Complexity in Early Comb Jellies
Rare Cambrian fossils from Utah reveal unexpected anatomical complexity in early comb jellies

quote:
Ctenophores, also known as comb jellies, are a group of over 200 living species of invertebrate animals with a transparent gelatinous body superficially resembling that of a jellyfish. There is much interest in ctenophore evolution in recent years as their controversial phylogenetic position in the animal tree of life has prompted conflicting hypotheses. While some studies suggest they might represent the earliest branching animals, others suggest a more traditional position as close relatives of jellyfish.

quote:
These hypotheses carry different and important implications for understanding the origin of animals themselves because, depending on the position of comb jellies in the tree of life, it's possible that muscles and the nervous system might have had multiple origins, a rather big deal as these are some of the most distinguishing features of animals today.

quote:
Despite their importance for understanding animal evolution, most information about ctenophores comes from living species alone as fossil comb jellies are extremely rare due to their gelatinous bodies. However, some fossil ctenophores have been discovered in early and middle Cambrian sites (about 520-500 million years ago) with exceptional preservation. These fossilized specimens, found around the world in sites including Burgess Shale in Canada and Chengjiang in South China, show that Cambrian ctenophores are a bit different from living representatives. The fossils include features such as a skeleton that supported the ctenes, or comb rows, as well as up to 24 comb rows—many more than the eight comb rows possessed by living species.

quote:
Ultimately, the two new species from Utah illuminate the evolution of the nervous system, sensory structures, and diversity of Cambrian ctenophores. The researchers conclude that Cambrian ctenophores had more complex nervous systems compared to those observed today. Living species of comb jellies have a diffuse nervous system similar to the structure of chicken wire, but very thin and transparent. Cambrian ctenophores' nervous systems were condensed with specific nerve tracks that basically ran along the length of the body and then as a ring around the mouth. This complex system is only seen in one living species, the Euplokamis, which is regarded as potentially being an early branching ctenophore living today. However, while Euplokamis has this elongated nerve structure that runs the length of the body, it does not have the ring around the mouth, so it too is simpler compared to Cambrian ctenophores.

We keep learning new things!


What if Eleanor Roosevelt had wings? -- Monty Python

One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie

If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy

The reason that we have the scientific method is because common sense isn't reliable. -- Taq


  
Tanypteryx
Member
Posts: 3435
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 4.2


(1)
Message 20 of 22 (888328)
09-12-2021 2:31 PM


A New Large Predator Fossil from the Burgess Shale
“Absolutely Mind-Boggling” Massive New Animal Species Discovered in 500 Million-Year-Old Burgess Shale

quote:
Paleontologists at the Royal Ontario Museum (ROM) have uncovered the remains of a huge new fossil species belonging to an extinct animal group in half-a-billion-year-old Cambrian rocks from Kootenay National Park in the Canadian Rockies. The findings were announced on September 8, 2021, in a study published in Royal Society Open Science.

quote:
Named Titanokorys gainesi, this new species is remarkable for its size. With an estimated total length of half a meter, Titanokorys was a giant compared to most animals that lived in the seas at that time, most of which barely reached the size of a pinky finger.

“The sheer size of this animal is absolutely mind-boggling, this is one of the biggest animals from the Cambrian period ever found,” says Jean-Bernard Caron, ROM’s Richard M. Ivey Curator of Invertebrate Palaeontology.


quote:
Evolutionarily speaking, Titanokorys belongs to a group of primitive arthropods called radiodonts. The most iconic representative of this group is the streamlined predator Anomalocaris, which may itself have approached a metre in length. Like all radiodonts, Titanokorys had multifaceted eyes, a pineapple slice-shaped, tooth-lined mouth, a pair of spiny claws below its head to capture prey and a body with a series of flaps for swimming. Within this group, some species also possessed large, conspicuous head carapaces, with Titanokorys being one of the largest ever known.

The Burgess Shales continue to be a rich source of new fossil organisms.


What if Eleanor Roosevelt had wings? -- Monty Python

One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie

If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy

The reason that we have the scientific method is because common sense isn't reliable. -- Taq


Replies to this message:
 Message 21 by AZPaul3, posted 09-13-2021 9:17 PM Tanypteryx has not replied

  
AZPaul3
Member
Posts: 6835
From: Phoenix
Joined: 11-06-2006
Member Rating: 3.4


(1)
Message 21 of 22 (888335)
09-13-2021 9:17 PM
Reply to: Message 20 by Tanypteryx
09-12-2021 2:31 PM


Re: A New Large Predator Fossil from the Burgess Shale
Saw your article, looked at the graphics of this little beast. Your sure like them pretty ones.

Eschew obfuscation. Habituate elucidation.

This message is a reply to:
 Message 20 by Tanypteryx, posted 09-12-2021 2:31 PM Tanypteryx has not replied

  
Tanypteryx
Member
Posts: 3435
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 4.2


(1)
Message 22 of 22 (895454)
06-28-2022 12:33 PM


Clues About the Origins of Complex Life
Incredible Virus Discovery Offers Clues About the Origins of Complex Life
quote
The first discovery of viruses infecting a group of microbes that may include the ancestors of all complex life has been found, scientists at The University of Texas at Austin (UT Austin) report in Nature Microbiology. The incredible discovery offers tantalizing clues about the origins of complex life and suggests new directions for investigating the hypothesis that viruses were essential to the evolution of humans and other complex life forms.
There is a well-supported hypothesis that all complex life forms such as humans, starfish, and trees — which feature cells with a nucleus and are called eukaryotes — originated when archaea and bacteria merged to form a hybrid organism. Recent research suggests the first eukaryotes are direct descendants of so-called Asgard archaea. The latest research, by Ian Rambo (a former doctoral student at UT Austin) and other members of Brett Baker’s lab, sheds light on how viruses, too, may have played a role in this billions-year-old history.
quote
“This study is opening a door to better resolving the origin of eukaryotes and understanding the role of viruses in the ecology and evolution of Asgard archaea,” Rambo said. “There is a hypothesis that viruses may have contributed to the emergence of complex cellular life.”
Rambo is referring to a hotly debated hypothesis called viral eukaryogenesis. It suggests that, in addition to bacteria and archaea, viruses might have contributed some genetic component to the development of eukaryotes. While this latest discovery does not settle that debate, it does offer some interesting clues.
The newly discovered viruses that infect currently living Asgard archaea do have some features similar to viruses that infect eukaryotes, including the ability to copy their own DNA and hijack protein modification systems of their hosts. The fact that these recovered Asgard viruses display characteristics of both viruses that infect eukaryotes and prokaryotes, which have cells without a nucleus, makes them unique since they are not exactly like those that infect other archaea or complex life forms.
“The most exciting thing is they are completely new types of viruses that are different from those that we’ve seen before in archaea and eukaryotes, infecting our microbial relatives,” said Baker, associate professor of marine science and integrative biology and corresponding author of the study.
Reference: “Genomes of six viruses that infect Asgard archaea from deep-sea sediments” 27 June 2022, Nature Microbiology.
DOI: 10.1038/s41564-022-01150-8

Stop Tzar Vladimir the Condemned!

What if Eleanor Roosevelt had wings? -- Monty Python

One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie

If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy

The reason that we have the scientific method is because common sense isn't reliable. -- Taq


  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.1
Innovative software from Qwixotic © 2022