Fossil bone microanalyses reveal the ontogenetic histories of extinct tetrapods, but
incomplete fossil records often result in small sample sets lacking statistical strength. In …

Ontogenetic changes in the bone histology of Maiasaura peeblesorum are revealed by six
relatively distinct but gradational growth stages: early and late nestling, early and late …

Information on aging, maturation, and growth is important for understanding life histories of
organisms. In extinct dinosaurs, such information can be derived from the histological growth …

Some of the longest standing questions in dinosaur paleontology pertain to their
development. Did dinosaurs grow at slow rates similar to extant reptiles or rapidly similar to …

Isolated small theropod teeth are abundant in vertebrate microfossil assemblages, and are
frequently used in studies of species diversity in ancient ecosystems. However, determining …

An enduring focus of these studies has been Cope's Rule, the notion that body size tends to
increase over time within lineages (Kurtén, 1953; Stanley, 1973; Polly, 1998). Such an …

Hadrosaurs grew rapidly, and quantifying their growth is key to understanding life-history
interactions between predators and prey during the Late Cretaceous. In this study, we …

Very little is known about nonavian dinosaur population biology. Multi‐individual sampling
and longevity estimation using growth line counts can be used to construct life tables—the …

Because of their physiological and life history characteristics, mammals exploit adaptive
zones unavailable to ectothermic reptiles. Yet, they perform best in energy-rich …

Noasauridae is a clade of ceratosaurian theropods that evolved small body size
independently of other non-avian theropods. The best-preserved and most complete …