Intermediate fossils and the pre-Darwin (creationist) geologists

RBH left a comment to a previous posting that inspired me to put some material together to address his (or anyone’s) reservations on the subject of intermediate fossil forms and the pre-Darwin (creationist) geologists.

Another really helpful post, Troy. Thanks!

Thanks RB!


Addendum

I realized during my discussions with RBH in the comments to this post that my main point behind writing about this subject might not be transparent to the average reader who doesn’t eat, sleep, and breath the creation/evolution debate. So I add this preface to give the reader a context for why I am going on at length about early 19th century geologists.

My point in all this is less about understanding the often vague and sometimes even contradictory views of the pre-Darwin scientists (as worthy as that subject of study is) and more about countering the arguments from modern antievolutionists that intermediate fossils do not exist and that those paleontologists who claim that they do, do so only because they are reading their “evolutionary beliefs” into the evidence.

If the pre-Darwin creationist geologists saw intermediates this tends, strongly I think, to falsify that argument. The same applies to the overall pattern of the fossil record and the geologic column that illustrates it (which is also frequently claimed by antievolutionists to be a evolutionary invention).


RBH: I do have one reservation. You wrote

The changing pattern of the fossil record and the existence of intermediate fossil forms was recognized by scientists (who were creationists) long before Darwin brought evolutionary theory into the scientific mainstream.

The changing pattern in the fossil record was surely observed; Cuvier in France and Owen in England — both eminent comparative anatomists in the first half of the 19th century — were very clear on that.

Indeed, Cuvier, Owen and just about every other geologist/paleontologist in the world at the time.

RBH: But Owen opposed Darwin’s hypothesis of species transmutation and common ancestry specifically because he did not see transitional/intermediate forms in the fossil record to which he had access.

I can’t speak much about Cuvier, but Owen is a little difficult to pigeon-hole into modern categories (perhaps a theistic evolutionist of sorts). He did oppose Darwin, particularly Darwin’s mechanism of natural selection but seemed to have been open to the idea of some sort of secondary causation for living things (as opposed to their direct creation by God).

Read on»

‘O Oysters, come and walk with us!

Dr. John Morris, president of the Institute for Creation Research, just can’t seem to stop himself from saying ignorant things. And saying them about things for which there is no reason to be ignorant about even for a young earth creationist.

In the October issue of Acts & Facts, in yet another of a seemingly endless  parade of snarks about the Cambrian radiation (Morris 2008a) he throws out this little nugget about the famous mid-Cambrian Burgess Shale fossil locality:

Morris: In 1940, fossils of amazing clarity and diversity were found in Canada’s Burgess Shale. The extremely fine-grained shale preserved intricate details of previously unknown invertebrates.

The problem is the Burgess Shale was discovered by Charles Walcott in 1909 and quarried for fossils for decades before 1940. And as far as I know nothing significant regarding the Burgess Shale happened in 1940 either. But why get this wrong? Never mind bothering to crack a book on the subject, if Morris had bothered to Google the Burgess Shale the very first thing to pop up would have been the Wikipedia entry on the fossil locality which in a matter of seconds would have given him the correct date for its discovery.

It’s like he’s not even pretending to care about getting even the most basic and noncontroversial facts straight.

Read on»

Horse (non)sense

Creationist Arthur Biele whose claims about the fossil record of horses I dissected a while back, has left a couple of lengthy comments in response. I will get around to dissecting these as well but not till I get some other things done first.

Feel free to beat me to the punch.

Tiktaalik (Your Inner Fish)

Because there are not enough songs about fossil organisms…

And you have to love the name of the band as well…

More scientific ignorance from Dr. John Morris

Dr. John Morris, president of the Institute for Creation Research is at it again. Apparently not content with advertising his abject ignorance of zoology as he did a few months ago when he listed tunicates (phylum chordata) along with sea stars as members of the phylum echinodermata, he is now letting everyone know that he is equally incompetent to comment intelligently on the subject of paleontology (I know, I am as shocked as you are).

More specifically he has come out attacking the classic fossil evidence for the evolution of the horse in the September (2008) issue of ICR’s Acts & Facts.

Morris: Horse evolution prominently appears in textbooks as a supreme example of the evolution of one body style into another. All students remember the “horse series” sketches, tracing the development of a small browser named Hyracotherium (formerly known as Eohippus) with four toes on the front feet and three on the rear, into the large one-toed horse of today. Intermediate steps included the three-toed Mesohippus, a modified horse with one toe touching the ground [Emphasis mine]

Mesohippus_toes_arrows

Wrong right off the bat. The fact is that with Mesohippus all three toes touch the ground as can be seen in the above photo of a mounted fossil at the Chicago Field Museum. This is especially true when it is taken into account that Mesohippus probably would have had pads on its feet similar to those found in tapirs.

Tapir hooves

Tapir hooves

Read on»

You can tune a piano but you can’t tunicate…

The May (2008) issue of the Institute for Creation Research‘s monthly newsletter Acts & Facts contains an article by the current President of ICR, Dr. John Morris, titled “Evolution’s Biggest Hurdles“. The article is ostensibly about enumerating unsolved questions in evolutionary theory but instead what it does is highlight a deeply rooted set of character flaws in the “creation science” movement and its leaders: intellectual laziness (and/or dishonesty) combined with a lack of basic scientific literacy and colossal hubris.

While I understand that this article is a relatively short, non-technical piece, this does not in my opinion excuse the glaring omissions of relevant evidence about its supposed subject. Nor does the fact that Dr. Morris has a background in geological engineering forgive the zoological ignorance it displays. I am not a zoologist. I don’t have any degrees, but still I was able to immediately spot some of the rather glaring zoological errors and omissions in what Dr. Morris wrote. For someone who has been involved in the creation/evolution debate as long as Dr. Morris has it is difficult to fathom how he could not be better informed on such basic issues.

Read on»

A horse is a horse, unless of course…

…the horse is of course the famous Eohippus.

One of my favorite corners of the alternate universe that is creationism is where creationists get to talking about (denying) horse evolution. The fossil record for horses and their relatives (rhinos, tapirs and some extinct groups) is so well documented it is amusing seeing how creationists rationalize their way around the evidence and when I find something about horses on a creationist site I often take a look to see what sort of silliness they’ve gotten up to.

Case in point: Answers in Genesis put up a short piece on their site recently titled “Not Just Horsin’ Around” which directs their readers to a site called “eQuest 4 Truth.com”. They report that the owner of the website (Rebekah Holt) started it to “… steer young people away from the incorrect information that they receive in many public school textbooks and encyclopedias” and that the site “…helps refute the claim that the modern horse evolved from a much smaller, non-horse ancestor.”

On the site is a page titled “Horse Evolution – Fact or Horse Manure?” written by creationist Arthur Biele, who, judging by a Google search on his name, has been pestering people with nonsense in various internet discussion forums for years. His article here attacking the evidence for horse evolution is a barely readable hodgepodge of unsupported assertions, factual errors and standard quotes from “The Creationist Joke Book™”.

Given that there is so much creationist nonsense out there on the web I normally wouldn’t have taken as much time as I did to dissect it but since Answers in Genesis put their seal of approval on it I figured it would be worth the time.

OK, we’re off to the Eohippus races…

Read on»

I’m still here…

Sorry for the lack of new posts but I am working on about three different things right now (and remember I have a day job ;) ). One is a big post on fossil horses, another post has to do with ICR and tunicates and lastly I am supposed to be helping on a rewrite of the Talk Origins Archive FAQ on the Lewis Overthrust (hi John).

The horse piece is dragging on a bit as it involves an ongoing correspondence with people from two major museums and a major university, and I’ve had to make two trips to the local UC library to pick up relevant papers.

So please bear with me, and hopefully it will all be worth the wait.

More questionable science reporting

I recently picked up the March/April issue of a new magazine, Science Illustrated which is sort of like Discover Magazine-lite. Lots of pretty pictures (as the name suggests) but the actual information content is somewhat limited and in some cases it is more than limited, it is simply wrong.

For example while flipping through this issue I ran across a little two paragraph editorial piece on a small (non-avian) dinosaur fossil known as Sinosauropteryx: “Researchers Pluck “Feathered Dinosaur” Theory”.

Read on»

“Tests Confirm T. Rex Kinship With Birds”

Just ran across this on the science section of the NY Times web site:

Tests Confirm T. Rex Kinship With Birds

The article, by science writer John Noble Wilford, reports on results from a Harvard study to be reported in the next edition of the journal Science.

In the first analysis of proteins extracted from dinosaur bones, scientists say they have established more firmly than ever that the closest living relatives of the mighty predator Tyrannosaurus rex are modern birds.

The research, being published Friday in the journal Science, yielded the first molecular data confirming the widely held hypothesis of a close dinosaur-bird ancestry, the American scientific team reported. The link was previously suggested by anatomical similarities.

This, if it bears out, it is further evidence supporting the evolutionary relationship between theropodcomparative anatomy. dinosaurs and birds that has been strongly suggested by the evidence from

The anti-dino/bird faction amongst scientists (Martin, Feduccia etc.) will no doubt claim that this is merely yet another example of the many (supposed) convergences between dinosaurs and birds. Creationists will probably deny, deny, deny.

Remember to stay tuned on this though. This is only the popular level report, the peer reviewed material is yet to be seen; and it is only the first such study. More studies, if possible, will be needed to confirm this finding.

They apparently did some similar tests on mastodon bones:

Similar molecular tests on tissues from the extinct mastodon confirmed its close genetic link to the elephant, as had been suspected from skeletal affinities.

Perhaps not terribly surprising, but still interesting nonetheless.