Suchomimus

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Dinosaurs, Noah’s Flood, and Creationism- An ecological challenge

SuchomimusI recently visited the Science Museum of Minnesota to check out the exhibit “Ultimate Dinosaurs” which features a number of dinosaurs which aren’t typically displayed in North America. I heard one other museum-goer talking about how they always thought that dinosaurs just were dinosaurs–that they were the same all over the Earth. But they weren’t! In fact, there is great diversity in the types of dinosaurs found in different parts of the world. Some are found all over North America; others are restricted to small parts of Africa or South America.

That got me thinking on creationism. A standard young earth creationist account of the history of the world would state that dinosaur fossils are found where they lay because the Flood put them there. Many YEC accounts are catastrophic in nature, arguing that the Flood recreated the surface of the Earth and left most or all of the layers of sediment we now observe. The dinosaurs (and other creatures) we find were swept up in the Flood and then laid down once the water had settled.

Pictured above and left, there is a fossil of a Suchomimus. Suchomimus was a fish-eating dinosaur which has only been found in Niger, Africa. According to standard scientific explanations, it lived in the Early Cretaceous period, about 121-112 million years ago. According to a young earth creationist account, this dinosaur died either during the Flood or migrated to the location it was found after the Flood. Either way, this was no more than a few thousand years ago. Pictured below and to the right, there is a fossil of a Tyrannosaurus Rex. It lived in the Late Cretaceous period, about 66-67 million years ago and ranged across what is now North America. Again, a young earth creationist account would have it dying during the flood or going extinct afterwards.

Tyrannosaurus-Rex-mn-sciThe Young Earth Creationist Explanation- A problem?

The young earth creationist (YEC) account is once more generally based upon the notion that the Noachian Deluge deposited these fossils where they are now found. The Flood is to explain how these fossils ended up in their present locations.

The fact that dinosaurs are found in different parts of the planet–and only in those parts–suggests an interesting problem for YECs: How is it that such a catastrophic event managed to destroy the surface of the Earth and then remake it through layers while creating the illusion of localized ecosystems at different points in history?

Such a challenge should not simply be dismissed. YEC literature sometimes suggests that the fossilized ecosystems which are proposed in different parts of the world at different (millions of years ago) times are merely products of the Flood depositing the fossils where they now lay. For example, according to YEC literature, many scientists believe that there was an ancient sea over North America merely because the Flood happened to deposit a bunch of mosasaur fossils and other marine life in a certain layer of the sediment it laid down.

The observed evidence, however, goes against this notion. Consider the Suchomimus (pictured above, left) once more. It has been found only in a localized area in what is now Africa. It is nearly certain it was a fish eater. This notion is not a mere product of accidental laying down of fish fossils near and around where Suchomimus has been found. Instead, it is based upon observational evidence. First, its large claws seem perfectly adapted to snagging large lungfish along the shore (large lungfish fossils have been found in the same area). Second, its narrow skull lined with extremely pointy teeth suggest a fishy diet, as it is once more adapted to eating them. Third, and most telling, fish fossils have been found with tooth marks from Suchomimus on their bones.

So what? How does this bring up a problem for YEC? Well, to put it simply, it demonstrates that the localized ecosystem found near and around Suchomimus is not a mere random product of fossils being jumbled together and then deposited during the Flood. Instead, predator and prey are found in a localized environment with other fossil specimens that fit neatly into the same ecosystem. But on the YEC account, how could this happen? Surely it would be an astounding happening if an entire ecosystem were swept away by the Flood, jumbled up with others along with sediment and the like, subjected to tidal waves across the surface, and then neatly deposited in a localized area, preserving that same ecosystem.

cretaceous-mapA Possible Alternative

Some YECs (such as Kurt Wise) have instead suggested that the Flood did not destroy the whole surface of the Earth but was rather providentially brought about by God along with catastrophic plate tectonics. On this scenario, water rapidly rose and covered the face of the Earth, bringing with it sediment and the like which rapidly buried such localized ecologies.

Setting aside difficulties with such a scenario related to the means by which it would have allegedly occurred, it should be clear that this explanation is at least somewhat more palatable. It doesn’t turn ecosystems into mere fictions. However, this scenario doesn’t solve everything. For example, why are there separate and distinct ecosystems, one atop the other, in the same place? Going to North America, Tyrannosaurus Rex has been found across much of what is now North America. Again, we find prey with T-Rex tooth marks in their bones and the like. We have preserved ecosystems from this time. But different places (like the inland sea I discussed here) feature what appears to be a marine environment. Moreover, different layers, like those exposed through glaciation in the upper Midwest, show entirely different (and seemingly more primitive) marine lief. This raises a number of issues, most of which are relevant for any alleged Flood scenario.

First, if the Flood was a sudden event which covered the face of the Earth and thus preserved ecosystems in place, how did it manage to kill off and bury so much marine life? It seems like it must have been gentle enough to preserve the fossil evidence, so why did the marine life not simply swim away and get scattered across other layers as it died? Second, how do we have distinct and separate ecosystems preserved in different layers, one atop the other? Again, the suggestion was that ecosystems were preserved in place–so why do some places have different ecosystems above one another? Third, why are the types of sediment laid down distinct for each ecosystem? If the sediment was all due to one event, then why does the sediment type match the ecosystems which it buries?

herrerasaurusThe Balance of Evidence

At this point, I think we must remember that we may evaluate such claims from a number of angles. First, the YEC explanations seem very ad hoc–that is, they are invented  by adjusting the Flood scenario (or some other device like distant starlight moving faster)–in order to explain away the difficulties rather than pursuing the evidence. It is reactionary rather than investigative. [I edited this line after some insight from a comment below.]

Second, realistically, which portions of the YEC explanation might be found in the Bible, if any? Having read the accounts of the Flood and Creation many times, I have to say I have never once spotted a place wherein it discusses the distribution of dinosaurs, the way the Flood laid down sediment, or any number of things put forward by YECs.

Third, when YECs and others are offering alternative scientific explanations–i.e. an explanation for “how did this [dinosaur] get here?”–they must deal with the fact that we’re looking for the most likely explanation. As I discussed in another post on dinosaurs and creationism, the proposed alternative YEC explanation is very clearly more complex and less likely than that of the one already offered–that the dinosaurs simply existed at different times and/or in different places over the course of history. We should be honest in our evaluations of evidence and look to see which explanation is more likely. Remember, we should be investigating the evidence while trying to stay free of any a priori assumptions about what must have happened and instead look at the evidence to see which explanation best fits. As I pointed out in the post linked above, proposing a global catastrophic Flood as the alternative hypothesis demands an enormous burden of proof.

Links

Be sure to check out the page for this site on Facebook and Twitter for discussion of posts, links to other pages of interest, random talk about theology/philosophy/apologetics/movies and more!

“Oceans of Kansas,” Unexpected Fossils, and Young Earth Creationism– I discuss the alleged findings out out-of-sequences fossils in the fossil record and how YEC explanations fail to show they are attributable to a global catastrophic Flood.

What options are there in the origins debate? – A Taxonomy of Christian Origins Positions– I clarify the breadth of options available for Christians who want to interact on various levels with models of origins. I think this post is extremely important because it gives readers a chance to see the various positions explained briefly.

The photographs in this post were taken by me at the Science Museum of Minnesota with permission. Any use of these pictures should be only with express, written consent. The map is an image created by BBC and I do not claim any rights over it but use it through fair use.

SDG.

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