Determining Average Dinosaur Size Using the Most Recent Comprehensive Body Mass Data Set | The Institute for Creation Research
Determining Average Dinosaur Size Using the Most Recent Comprehensive Body Mass Data Set

by Timothy L. Clarey, Ph.D., and Jeffrey P. Tomkins, Ph.D

In Answers Research Journal 8 (2015): 85-93

The median mass of a dinosaur is determined to be 630 kg (1389 lb), or the size of an American bison, based on the largest published and most accurate data set to date. Most dinosaurs seem to have stayed very small (0–60 kg [0–132 lb]) or grew very large (1081–56,000 kg [2383–123,459 lb]), with less species in the medium-sized range. The dinosaurs buried in the lower Flood layers (Upper Triassic series) were mostly small. Although there was an average size increase upward into younger Flood layers, it was not universal or statistically strong. There were many small dinosaurs buried throughout the entire spectrum of dinosaur-bearing rocks. The largest sauropodomorphs were buried in the Upper Jurassic series, about midway through the Flood record of dinosaurs. Whereas, ornithopods showed an increase in size from earliest to latest Flood deposits, attaining greatest size in the Upper Cretaceous series. Theropods generally showed an increase in size from the earliest deposits to the later Flood deposits, but had a small peak in size in the Middle Jurassic deposits also. The sizes of dinosaurs buried at different times in the Flood seem to have been influenced by several factors, including habitat elevation, mobility, and reaction to danger or intelligence. The larger brain size and mobility of the coelurosaur theropods may explain their prevalence in the Cretaceous system. Higher mobility of theropods in general may explain their greater than expected proportion of footprints also.

Click here to read the full article text.

The Latest
Can Scripture Be Trusted? | Creation.Live Podcast: Episode 8
Both believers and skeptics can find themselves asking if Scripture can be taken at its word. Is it scientifically accurate? Can its history be trusted?...

Cambrian Soft Tissue Defies Evolution
Paleontologists have discovered “early fossils [of] simple hollow tubes ranging from a few millimetres to many centimetres in length.”1...

Fruit Fly Jitters
Researchers working with fruit flies–the ubiquitous lab animal–have discovered the flies are able to undergo an amazing ocular process called...

Can Radioisotope Dating Be Trusted? | The Creation Podcast: Episode...
Carbon dating is a common method used to determine the ages of fossils and other materials, but carbon14 deteriorates quite quickly. How can it still...

Prepare for the Big Non-Event!
In 1950 the famed Italian physicist Enrico Fermi asked his coworkers at the lunch table the simple metaphysical question in regard to possible aliens...

Move Toward the Enemy: Fighting for Truth in Science
Honor to the soldier and sailor everywhere, who bravely bears his country’s cause. Honor, also, to the citizen who cares for his brother in the...

Evolving Mammals?
The evolution of mammals from non-mammals, like the evolution of all other animal groups, has been, and will always be, problematic. English paleontologist...

Butterfly Variation
Butterflies have made science news again, this time in regard to a master gene called WntA: “a combined team of researchers from Cornell University...

How Old Is The Universe? | The Creation Podcast: Episode 35
Many scientists claim that the universe is approximately 13.8 billion years old by reverse-engineering the Big Bang with the assumption that this theory...

Massive Tsunamis Generated by the Flood, Not an Asteroid
Two separate studies claim massive tsunamis and earthquakes from an asteroid impact profoundly affected the rock record. One research team modeled a...