Chinese scientists have discovered a block of sandstone three meters square that has more than 215 fossilized eggs. The eggs are from one species of flying reptiles known as Hamipterus tianshanensis–a pterosaur from the Cretaceous geological period. When scientists find that many eggs in one place, they can establish a great many facts about how the animals reproduced and lived. There is no question about the arrangement of the bones or how they developed.
We have suggested that dinosaurs had a very large role in the development of the resources on Earth that humans would eventually need. Knowing how these animals lived, what they ate, how they got around, and how they interacted with their environment helps us understand that role. In this case, the eggs contain at least 16 embryos for study.
This dinosaur, found in Patagonia, Argentina, is named Patagotitan mayorum. It was more than 120 feet (36.5 m) long and weighed more than 76 tons (69 tonnes). It is also one of the most complete fossils with 150 bones recovered. When it is reassembled, the skeleton will be roughly the size of a Boeing 737.
What scientists want to learn about an animal of that size is, “How could it get so big?” We recently published a post about the world’s largest snake, the titanoboa. Reptiles, unlike mammals, continue to grow during their entire lives. In this case, the question is, “What sustains such massive growth?” How much food must the animal eat? How would its vascular system work? What is its significance to the ecology of the area where it lived? What environmental temperature and oxygen levels would allow an animal of that size to live? How could a human exist in such surroundings? Some of these questions are being addressed. Some are so complex that researchers on the site say it “is really hard to imagine” the answers.
We have pointed out that the ecological system that produced the resources humans would need to exist on this planet had to be different from what we have today. Those conditions would be hostile to human survival. This fossil of the largest land animal supports that point very well.
It’s always interesting to see how the media distorts scientific material to make it more sensational. The front page of USA Today for March 2, 2017, carried a headline saying: “3.8 Billion-year-old Bacteria May Be Earth’s Oldest Fossils.” The article goes on to state as fact: “The bacteria lived near hydrothermal vents…” There are so many issues here that it would take several pages to point them all out, but the interesting thing is the actual discovery. Stromatolites are layered structures that may be produced by algae or bacteria, and some are ancient deposits, although others are still being produced today. I have seen these formations in the Gunflint Chert in Minnesota near a cabin owned by my brother. Those formations are circular and contain a mineral called hematite, an iron mineral that may have been a part of the biology of microorganisms.
This new find is an iron carbonate rosette that is circular and contains hematite. There is some evidence that it was formed near an undersea thermal vent. Since we see life around sea-vents today, it might be assumed the formation is of biological origin. There are chemical, non-biological processes that can produce similar structures. The problem with this kind of media headline is that it gives a false impression of how science works and what has actually been found. It may be that these structures were biologically formed, and they may be 3.8 billion years old. The Bible doesn’t date or describe bacteria and how God formed the ecosystem that would support humans on planet Earth. This same process may even be going on elsewhere in the universe, but it will take exhaustive research to verify or deny whether this is ancient life.