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A Creationist Speaker Comes to Town

Long but detailed; updated resources include rebuttals to creationist claims, including dinosaur soft tissue, and teaching exercise on Lucy. I have mined this for links. There is also a discussion of bible-basd arguments, for those (like the author) to whom such thngs are important.

Letters to Creationists

By the early 1800s European geologists (many of them devout Christians) realized that the rock layers they observed had to be far older than the 6000 years allowed by a literal interpretation of Bible chronology. For instance, as discussed here , angular unconformities like that shown below could not been formed in the course of the one-year-long Flood of Noah.

Angular Unconformity at Siccar Point, Scotland. Siccar Point, Scotland (Photo: Wikipedia “Hutton’s Unconformity”) Angular Unconformity at Siccar Point, Scotland. Siccar Point, Scotland (Photo: Wikipedia “Hutton’s Unconformity”)

Numerous other evidences for an old earth have been observed by scientists over the past two hundred years. These include fossil soils, and massive deposits of salt and of limestone in the midst of sedimentary rock layers, and tens of thousands of annual layers in lake bottom deposits (“varves”) and in glaciers (see Some Simple Evidences for an Old Earth). We can trace, in reasonable detail, the movements of the sections of earth’s crust over the…

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What is the “Soft Tissue” Found in Dinosaur Bones?

An analysis (with link to full scholarly critique) of this deceptive and slippery claim, which creationists continue to promote despite rebuttals from the very scientist whose work they are misdescribing. The red “blood” colour is merely iron oxide; the preserved structures are encased in bone mineral; the only preserved organics are fragments of notoriously tough connective proteins, stabilised by cross-linking over time (I would add from my own scientific experience that the microcomposite bone-collagen structure will add further stabilisation); and the scientist responsible (Mary Schweitzer, who happens to be a devout Christian) has herself protested against the use of her data to promote an indefensible Young Earth agenda.

Letters to Creationists

For fossils as old as dinosaurs (over 65 million years), the conventional wisdom has been that no original organic material could remain. If the delicate structure of soft body parts is discernable, that is only because these parts were converted to some type of inorganic mineral in the fossilization process.

However, over the past two decades, paleontologist Mary Schweitzer has rocked our world by presenting visual evidence of soft tissues recovered from the interior of dinosaur bones, and biochemical evidence indicating that these are in fact the remnants of the original cells and structures from within the dinosaur bone pores. For instance, here is a network of blood vessels, containing little round red things that look like red blood cells:

High magnification of dinosaur vessels shows branching pattern (arrows) and round, red microstructures in the vessels. Source: Schweitzer, et al., “Soft-Tissue Vessels and Cellular Preservation in Tyrannosaurus rex”, Science, 307 (2005) 1952 [6]. High magnification of dinosaur vessels shows branching pattern (arrows) and round, red microstructures in the vessels. Source: Schweitzer, et al., “Soft-Tissue Vessels and Cellular Preservation in Tyrannosaurus rex”, Science, 307…

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