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Kudnu
''Kudnu'' is an extinct genus of neodiapsid reptile from the Early Triassic Arcadia Formation of Australia. The type species is ''K. mackinlayi''. Discovery and naming The holotype is QM F9181, an anterior section of a cranium with articulated dentary rami, and it was discovered in the Crater, southwest of Rolleston, Queensland. The referred skull QM F9182 is also known. ''Kudnu mackinlayi'' was named and described by Alan Bartholomai in 1979. Classification ''Kudnu'' was initially classified within Paliguanidae by Bartholomai (1979). Benton (1985) classified ''Kudnu'' within Lepidosauromorpha, while Evans (2003) classified ''Kudnu'' within Prolacertiformes, and Evans & Jones (2010) later assigned ''Kudnu'' to the Procolophonidae. More recent authors, such as Poropat ''et al.'' (2023), consider ''Kudnu'' to be a basal member of Neodiapsida. Paleoecology The world ''Kudnu'' inhabited was still recovering from the recent Permian–Triassic extinction event, and as a re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eomurruna
''Eomurruna'' is a genus of procolophonid reptile that existed in what is now Queensland, Australia during the Early Triassic period (247-251 Mya). The genus is made up of a single species, ''E. yurrgensis'', originally uncovered within the Arcadia Formation in 1985. Since then over 40 specimens have been referred to the genus, making ''Eomurruna'' one of the most complete organisms so far found from the Mesozoic of Australia. Discovery and naming ''Eomurruna'' was originally discovered on the basis of an articulated skeleton (QMF 59501), only missing various digits of each foot, gastralia as well as half of the tail. QMF 59501 was originally collected by Ruth Lane in 1985 within the Arcadia Formation. From here on more specimens would be referred to the genus; today there are over 40 specimens that have been referred to the genus, making ''Eomurruna'' one of the most complete and well understood animals from Mesozoic of Australia. It wasn't until 35 years later that the genus w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alan Bartholomai
Alan Bartholomai AM (1938–2015) was a geologist and palaeontologist, and Director of the Queensland Museum from 1969–1999. Early life and education Alan Bartholomai was born on 31 December 1938 in Boonah, Queensland. He attended Boonah State School and after his parents moved the family to the Gold Coast, he attended the Southport State School. He boarded at Gatton College in 1953–1954 where he took his Junior Certificate, and completed his senior studies at Southport State High School. He was able to obtain a Commonwealth Scholarship to attend the University of Queensland and pursue a BSc in geology and zoology, graduating in 1960. Career After graduation, Bartholomai was appointed the Curator of Geology at the Queensland Museum. He studied his MSc on fossil kangaroos, under the supervision of Dorothy Hill, and graduated in 1969. He continued his study toward a PhD, taking this in 1973 with a thesis on the ''Stratigraphy, skeletal morphology and evolution of the Uppe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcadia Formation, Australia
The Arcadia Formation is a geological formation located within central-eastern Queensland, Australia, which has been aged between the Induan–Olenekian epoch of the Early-Triassic period. It is most well known for its abundance of Early-Triassic aged fossils, most notably its high diversity of amphibians. Description The Arcadia Formation is a sequence of sandstones and mudstones deposited as a result of freshwater rivers and lakes during the Induan–Olenekian epoch. The Arcadia Formation represents one of the oldest known Mesozoic geology, formations within the entirety of Australia, as well as containing relatively well-preserved specimens for its age and country. At the time at which the Arcadia Formation was building up, the then region of today's Australia was still recovering from the recent Permian–Triassic extinction event which had resulted in the global biodiversity remaining at a low level throughout much of the lower Triassic. The world currently was generally a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diapsids
Diapsids ("two arches") are a clade of sauropsids, distinguished from more primitive eureptiles by the presence of two holes, known as temporal fenestrae, in each side of their skulls. The earliest traditionally identified diapsids, the araeoscelidians, appeared about three hundred million years ago during the late Carboniferous period. All diapsids other than the most primitive ones in the clade Araeoscelidia are often placed into the clade Neodiapsida. The diapsids are extremely diverse, and include birds and all modern reptile groups, including turtles, which were historically thought to lie outside the group. All modern reptiles and birds are placed within the neodiapsid subclade Sauria. Although some diapsids have lost either one hole (lizards), or both holes (snakes and turtles), or have a heavily restructured skull (modern birds), they are still classified as diapsids based on their ancestry. At least 17,084 species of diapsid animals are extant: 9,159 birds, and 7,925 sn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcadia Formation (Australia)
The Arcadia Formation is a geological formation located within central-eastern Queensland, Australia, which has been aged between the Induan–Olenekian epoch of the Early-Triassic period. It is most well known for its abundance of Early-Triassic aged fossils, most notably its high diversity of amphibians. Description The Arcadia Formation is a sequence of sandstones and mudstones deposited as a result of freshwater rivers and lakes during the Induan–Olenekian epoch. The Arcadia Formation represents one of the oldest known Mesozoic formations within the entirety of Australia, as well as containing relatively well-preserved specimens for its age and country. At the time at which the Arcadia Formation was building up, the then region of today's Australia was still recovering from the recent Permian–Triassic extinction event which had resulted in the global biodiversity remaining at a low level throughout much of the lower Triassic. The world currently was generally a hot and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Triassic
The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 251.9 Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era. It is preceded by the Lopingian Epoch (late Permian, Paleozoic Era) and followed by the Middle Triassic Epoch. The Early Triassic is divided into the Induan and Olenekian ages. The Induan is subdivided into the Griesbachian and Dienerian subages and the Olenekian is subdivided into the Smithian and Spathian subages. The Lower Triassic series is coeval with the Scythian Stage, which is today not included in the official timescales but can be found in older literature. In Europe, most of the Lower Triassic is composed of Buntsandstein, a lithostratigraphic unit of continental red beds. The Early Triassic and partly also the Middle Trias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalisuchus Rewanensis
''Kalisuchus'' ('Kali's crocodile') was a genus of basal archosauriform known from remains unearthed from the Arcadia Formation ( Rewan Group) of the Early Triassic of the Crater, Southwest of Rolleston, south central Queensland, Australia. It was named after Kali, the Hindu goddess of destruction, a reference to the very fragmentary nature of its remains. The type species of ''Kalisuchus'' is ''K. rewanensis,'' which refers to the Rewan Group. The Arcadia formation is dated to the Induan age at the very beginning of the Triassic, making ''Kalisuchus'' one of the oldest archosauromorphs known in Australia. Description The holotype of ''Kalisuchus'' is a partial left maxilla, QM F8998. Although many other fragmentary bones from the Arcadia Formation were referred to the genus, the lack of overlap between these bones and the holotype makes these referrals dubious. One of the referred bones, QM F9521, was originally believed to be an unusual jugal The jugal is a skull bone foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
