Duriavenator

In Depth        Duriavenator was for a long time attributed to Megalosaurus,‭ ‬part‭ ‬of the‭ ‘‬wastebasket taxon‭’ ‬effect which saw Megalosaurus becoming a home for many fossils that actually represented similar yet different dinosaurs. Further Reading – A redescription of “Megalosaurus” hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom. – … Read more

Brachygnathosuchus

In Depth        Brachygnathosuchus is‭ ‬a problematic genus of crocodile because so far it is only known from a small portion of a lower jaw and possible osteoderm.‭ ‬A partial mandible that was moved from Dinoschus into Brachygnathosuchus was later‭ ‬moved again into Purussaurus. Further Reading – Brachygnathosuchus braziliensis,‭ ‬a new fossil crocodilian from Brazil.‭ ‬-‭ … Read more

Eoalulavis

In Depth        Eoalulavis was the first Mesozoic bird known to have had an alula,‭ ‬more commonly known as a bastard wing.‭ ‬The alula is a small extension to the anterior‭ (‬front‭) ‬edge of the wing that serves as an attachment point for a few additional small flight feathers.‭ ‬When extended,‭ ‬the alula both increased low … Read more

Eremiasaurus

In Depth        A kind of mosasaur known from North Africa, the species name of E.‭ ‬heterodontus means different-toothed and is in reference to the different kinds of teeth that are present in the jaws of known Eremiasaurus specimens.‭ ‬This is taken to indicate that Eremiasaurus‭ ‬may have been a generalist carnivore that was not especially … Read more

Lekaneleo

In Depth        Lekaneleo is a genus of thylacoleonid marsupial that lived in Australia during the Miocene period.‭ ‬Lekaneleo is a relative of the better known Thylacoleo,‭ ‬and like Thylacoleo,‭ ‬Lekaneleo would have been a powerful predator. Further Reading -‭ ‬Priscileo roskellyae sp.‭ ‬nov.‭ (‬Thylacoleonidae,‭ ‬Marsupialia‭) ‬from the Oligocene-Miocene of Riversleigh,‭ ‬northwestern Queensland.‭ ‬-‭ ‬Memoirs of … Read more

Saltoposuchus

In Depth        Saltoposuchus was not like todays crocodiles,‭ ‬in fact it was more like a small theropod dinosaur.‭ ‬The hind legs were long which meant that fast running speeds were theoretically possible,‭ ‬though the fore limbs may have still served a weight bearing function,‭ ‬perhaps when at rest.‭ ‬The teeth in the mouth were small … Read more

Tropidostoma

In Depth        Tropidostoma is a genus of dicynodont therapsid that lived in South Africa during the Permian. Further Reading -‭ ‬Researches on the Structure,‭ ‬Organisation,‭ ‬and Classification of the Fossil Reptilia.‭ ‬-‭ ‬VI.‭ ‬On the Anomodont Reptilia and Their Allies.‭ ‬-‭ ‬Philosophical Transactions of the Royal Society of London,‭ ‬Series B‭ ‬180:215-296.‭ ‬-‭ ‬Harry Govier … Read more

Lophostropheus

In Depth        Lophostropheus was initially assigned as a specimen of Halticosaurus until‭ ‬1993‭ ‬it was re-classified as a second species of Liliensternus,‭ ‬a genus that was also previously established as a‭ ‬species of Halticosaurus.‭ ‬A new study in‭ ‬2007‭ ‬however concluded that while the fossils were similar,‭ ‬they were different enough to be established as … Read more

Helicoprion

helicoprion 1

In Depth        Helicoprion is one of the stranger ‘sharks‘ in the fossil record,‭ ‬although at the time that Helicoprion swam the oceans there were actually many sharks that did not conform to the‭ ‘‬standard‭’ ‬form that we know today.‭ ‬The majority of the remains of this shark are the teeth which are fossilised in a … Read more

Romeria

In Depth        Romeria is a genus of captorhinid reptile that lived in what is now Texas during the early Permian. Further Reading -‭ ‬Two new cotylosaurs from the Permian of Texas.‭ ‬-‭ ‬Proceedings of the New England Zoďż˝logical Club‭ ‬11:‭ ‬97‭–‬102.‭ ‬-‭ ‬Llewellyn Ivor Price‭ ‬-‭ ‬1937. -‭ ‬Romeriid Reptiles from the Lower Permian.‭ ‬-‭ … Read more