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From: RonO <rokimoto557@gmail.com>
Newsgroups: talk.origins
Subject: Re: Fossil record gaps not a major issue
Date: Fri, 30 Aug 2024 08:43:58 -0500
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On 8/29/2024 7:46 PM, Pro Plyd wrote:
> 
> https://phys.org/news/2024-08-darwin-unjustified-fossil-gaps-major.html
> 
> Darwin's fear was unjustified: Study suggests
> fossil record gaps not a major issue
> 
SNIP:

The simulation described in the paper is not realistic and likely 
doesn't apply to terrestrial lifeforms.  Their conclusions likely are 
not valid.  Erosion is not the main reason that there are gaps in the 
fossil record.  You need deposition to occur in order for the fossils to 
be created, and deposition has to occur in the correct soils.  The 
greatest species diversity occurs in equatorial rain forests, but those 
forest soils dissolve bone.  So you have to exist in a place that can 
produce fossils where deposition and not erosion is occurring.  This 
means that not all species have the same chance of being preserved, and 
that their preservation is not going to be evenly distributed over the 
landscape.  Gaps are not just due to patches of fossil deposits getting 
erroded away.

Look at the whale example.  We have a strip of coastline where coastal 
errosion and deposition were occurring from time to time, and some 
sediments contained fossils of animals that lived along that coast when 
those sediments were being deposited.  It isn't a continuous record at 
any one place.  Those sediments were uplifted by India crashing into 
Asia, and erosion has exposed some of the fossils.  All the species that 
evolved along the rest of the coast line are not avaliable for study.

Ron Okimoto