In Depth        For a long time Helveticosaurus was thought to be one of the placodonts,†‬specialist marine reptiles that lived in the Triassic seas†‬that fed upon shellfish.†‬However further analysis has revealed that only the vertebra of Helveticosaurus are similar to the placodonts,†‬which has led to Helveticosaurus being re-classed as a diapsid†(‬two … Read more
Scutosaurus: Research Database Theropoda · Cretaceous · Unknown Research Note: Scutosaurus was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact Romano Manucci Rubidge 2021: Scutosaurus and related taxa Frontiers in Ecology and Evolution Confirmed B 2021 Fossil … Read more
Coelurosauravus: Research Database Theropoda · Cretaceous · Unknown Research Note: Coelurosauravus was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact Frey Sues Munk 1997: Coelurosauravus and related taxa Science Confirmed A 1997 Fossil Frey Sues Munk, Science … Read more
Eunotosaurus: Research Database Theropoda · Cretaceous · Unknown Research Note: Eunotosaurus was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact Seeley 1892: Eunotosaurus and related taxa Quarterly Journal of the Geological Society of London Confirmed B 1892 … Read more
Lariosaurus: Research Database Theropoda · Cretaceous · Unknown Research Note: Lariosaurus was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact Rieppel Jinling Jun 2003: Lariosaurus and related taxa Canadian Journal of Earth Sciences Confirmed B 2003 Fossil … Read more
In Depth        Phosphorosaurus is a genus of halisaurine mosasaur known to have lived during the latest stage of the Cretaceous.†‬Halisaurine mosasaurs like Phosphorosaurus were the smaller end of the scale in terms of size,†‬but would have been fast and nimble predators of other creatures such as fish and perhaps cephalopods such as squid. … Read more
Archelon: Research Database Cheloniidae (Testudines) · Late Cretaceous (~70 MYA) · North America — USA (South Dakota, Pierre Shale) Research Note: Archelon was the largest sea turtle that ever lived — known from the Late Cretaceous Pierre Shale of South Dakota and an important taxon for understanding chelonid evolution in the Cretaceous. Research … Read more