Our understanding of pre-Cretaceous dinosaur reproduction is hindered by a scarcity of
evidence within fossil records. Here we report three adult skeletons and five clutches of …

Live birth has evolved many times independently in vertebrates, such as mammals and
diverse groups of lizards and snakes. However, live birth is unknown in the major clade …

Introduction: Despite an extensive published literature, skepticism over the claim of original
biochemicals including proteins preserved in the fossil record persists and the issue remains …

Massospondylus carinatus Owen, 1854 is an iconic basal sauropodomorph dinosaur from
the Early Jurassic of southern Africa. Over 200 specimens have been referred to this taxon …

The cuticle layer consisting mainly of lipids and hydroxyapatite (HAp) atop the mineralized
avian eggshell is a protective structure that prevents the egg from dehydration and microbial …

Abstract Hundreds of Indian Late Cretaceous sauropod and theropod nests, eggs and
eggshells have been recorded from a specific lithologic unit (Lameta Limestone) at …

Histological studies have established relationships between the microstructural features of
bone, the growth rates of primary cortical bone, and whole-body growth rates of the animal …

The first dinosaur embryos found inside megaloolithid eggs from Auca Mahuevo, Patagonia,
were assigned to sauropod dinosaurs that lived approximately 80 million years ago …

Chemical imaging techniques, based on a combination of microscopy and spectroscopy, are
designed to analyse the composition and spatial distribution of heterogeneous chemical …

Two new Late Jurassic (uppermost Late Kimmeridgian) dinosaur eggshell sites are
described, Casal da Rola and Porto das Barcas, both near Lourinhã, central-west Portugal …