WebDownload scientific diagram Tangential section of Stromatoolithus pinglingensis and Spheroolithus chiangchiungtingensis under light microscope (unpolarised). (a-c), Stromatoolithus pinglingensis ... WebSep 25, 2024 · “The fossils collected from the Shanyang Basin represented only three different dinosaurian eggshell species (oospecies): Macroolithus yaotunensis, Elongatoolithus elongatus, and Stromatoolithus pinglingensis .”
Chinese Fossil Eggs Show Dinosaur Decline Before Extinction
WebSep 27, 2024 · We have found only three dinosaurian eggshell taxa (Macroolithus yaotunensis, Elongatoolithus elongatus, and Stromatoolithus pinglingensis) representing two clades (Oviraptoridae and Hadrosauridae) in sediments deposited between ∼68.2 and ∼66.4 million y ago, indicating sustained low dinosaur biodiversity, and that assessment … WebSep 24, 2024 · Macroolithus yaotunensis and Elongatoolithus elongatus belonged to a group of toothless dinosaurs known as oviraptors, while the third, Stromatoolithus … michael layton missouri
(PDF) A revision of the eggshell fragment of ... - ResearchGate
WebSep 21, 2024 · Their findings indicate there was a decline in dinosaur diversity across the two-million-year period, with the 1,000 egg fossils belonging to just three species – Macroolithus yaotunensis,... WebStromatoolithus pinglingensis has been considered to be derived from hadrosaurs (24, 25). These hypothesized eggshell producers are consistent with known dinosaur bones from the basin, and that... WebSep 24, 2024 · Macroolithus yaotunensis and Elongatoolithus elongatus belonged to a group of toothless dinosaurs known as oviraptors, while the third, Stromatoolithus pinglingensis, was a plant-eating hadrosaur ... michael lazarakis death