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Schultzsuchus
''Schultzsuchus'' is an extinct genus of pseudosuchian from the Triassic Santa Maria Formation of Brazil. Initially described as a species of ''Prestosuchus'', a 2024 study found the taxon to differ in multiple aspects of its anatomy, enough to warrant it being placed in a distinct genus. Unlike ''Prestosuchus'', which is a more derived member of Loricata, ''Schultzsuchus'' appears to have been a basal member of the clade Poposauroidea. History and naming The remains of what is now called ''Schultzsuchus'' were first described under the name ''Prestosuchus loricatus'' by German paleontologist Friedrich von Huene in 1938,von Huene, F. (1938). Die fossilen Reptilien des südamerikanischen Gondwanalandes. Ergebnisse der Sauriergrabungen in Südbrasilien 1928/29. ''Neues Jahrbuch für Mineralogie, Geologie Und Paläontologie'', 1938(3), 142–151. who had recovered the fossils of this pseudosuchian from the Cynodontier Sanga of the Santa Maria Supersequence in 1928/29 and regarded the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestosuchus
''Prestosuchus'' (meaning "Prestes crocodile") is an extinct genus of pseudosuchian in the group Loricata, which also includes ''Saurosuchus'' and ''Postosuchus''. It has historically been referred to as a "rauisuchian", and was the defining member of the family Prestosuchidae, though the validity of both of these groups is questionable: Rauisuchia is now considered Paraphyly, paraphyletic and Prestosuchidae is Polyphyly, polyphyletic in its widest form. History of study The holotype of ''Prestosuchus chiniquensis'' was discovered by Wilhelm Rau alongside the holotype of ''Rauisuchus tiradentes'' in the Santa Maria Formation at the Paleontological Site Chiniquá, near the city of São Pedro do Sul, Rio Grande do Sul, São Pedro do Sul in 1928 or 1929, and the fossils were shipped back to Germany for study by the German paleontologist Friedrich von Huene. Von Huene named the genus ''Prestosuchus'' in 1938 in honor of Vicentino Prestes de Almeida. This site is located in the geop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poposauroidea
Poposauroidea is a clade of advanced Pseudosuchian, pseudosuchians. It includes poposaurids, Shuvosaurinae, shuvosaurids, ctenosauriscids, and other unusual pseudosuchians such as ''Qianosuchus'' and ''Lotosaurus''. It excludes most large predatory quadrupedal "Rauisuchia, rauisuchians" such as rauisuchids and "prestosuchids". Those reptiles are now allied with Crocodylomorpha, crocodylomorphs (crocodile ancestors) in a clade known as Loricata, which is the Sister group, sister taxon to the poposauroids in the clade Paracrocodylomorpha. Although it was first formally defined in 2007, the name "Poposauroidea" has been used for many years. The group has been referred to as Poposauridae by some authors, although this name is often used more narrowly to refer to the family that includes ''Poposaurus'' and its close relatives. It was phylogenetically defined in 2011 by Sterling Nesbitt as ''Poposaurus gracilis'' and all taxa more closely related to it than to ''Postosuchus kirkpatricki' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metatarsals
The metatarsal bones or metatarsus (: metatarsi) are a group of five long bones in the midfoot, located between the tarsal bones (which form the heel and the ankle) and the phalanges (toes). Lacking individual names, the metatarsal bones are numbered from the medial side (the side of the great toe): the first, second, third, fourth, and fifth metatarsal (often depicted with Roman numerals). The metatarsals are analogous to the metacarpal bones of the hand. The lengths of the metatarsal bones in humans are, in descending order, second, third, fourth, fifth, and first. A bovine hind leg has two metatarsals. Structure The five metatarsals are dorsal convex long bones consisting of a shaft or body, a base (proximally), and a head (distally).Platzer 2004, p. 220 The body is prismoid in form, tapers gradually from the tarsal to the phalangeal extremity, and is curved longitudinally, so as to be concave below, slightly convex above. The base or posterior extremity is wedge-sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteoderms
Osteoderms are bony deposits forming scales, plates, or other structures based in the dermis. Osteoderms are found in many groups of Extant taxon, extant and extinct reptiles and amphibians, including lizards, crocodilians, frogs, Temnospondyli, temnospondyls (extinct amphibians), various groups of dinosaurs (most notably ankylosaurs and stegosaurians), phytosaurs, aetosaurs, placodonts, and hupehsuchians (marine reptiles with possible ichthyosaur affinities). Osteoderms are uncommon in mammals, although they have occurred in many xenarthrans (armadillos and the extinct glyptodonts and Mylodontidae, mylodontid ground sloths). The heavy, bony osteoderms have evolved independently in many different lineages. The armadillo osteoderm is believed to develop in subcutaneous dermal tissues. These varied structures should be thought of as anatomical analogues, not homology (biology), homologues, and do not necessarily indicate monophyly. The structures are however derived from scute, sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carinae
''Carinae'' was an area of ancient Rome. It was one of its most exclusive neighborhoods, where many of the senatorial class lived. Florus described the ''Carinae'' as the "''most celebrated part of the city''" (''celeberrima pars urbis''). Description The ''Carinae'' occupied the western end of the southern spur of the Esquiline hill in Rome. The district likely incorporated the earlier Fagutal, with the northern tip of the Oppian Hill on its western side; it extended between the Velian Hill and the ''Clivus Pullius''. Its outlook was southwestern, across the swamps of the ''Palus Ceroliae'' toward the Aventine. The slopes of the neighborhood near the Velia were crossed by the ''vicus Cyprius'', where, according to a Roman tradition taken up by Livy, Tullia would have killed her father Servius Tullius, overwhelming him with her chariot pulled by horses. The same passage from Livy indicates the existence of a temple dedicated to Diana in the ''Carinae''. The '' Murus Terreus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is the first and shortest period of the Mesozoic Era and the seventh period of the Phanerozoic Eon. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ischia
Ischia ( , , ) is a volcanic island in the Tyrrhenian Sea. It lies at the northern end of the Gulf of Naples, about from the city of Naples. It is the largest of the Phlegrean Islands. Although inhabited since the Bronze Age, as a Ancient Greece, Greek Emporium (antiquity), emporium it was founded in the 8th or 9th century Common Era, BCE, and known as wikt:Πιθηκοῦσαι, Πιθηκοῦσαι, ''Pithekoūsai''. Roughly trapezoidal in shape, it measures approximately east to west and north to south and has about of coastline and a surface area of . It is almost entirely mountainous; the highest peak is Mount Epomeo, at . The island is very densely populated, with 60,000 residents (more than 1,300 inhabitants per square km). Ischia, Campania, Ischia is the name of the main ''comune'' of the island. The other ''comuni'' of the island are Barano d'Ischia, Casamicciola Terme, Forio, Lacco Ameno and Serrara Fontana. Geology and geography The roughly trapezoidal island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epipophyses
Epipophyses are bony projections of the cervical vertebrae found in archosauromorphs, particularly dinosaurs (including some basal birds). These paired processes sit above the postzygapophyses on the rear of the vertebral neural arch. Their morphology is variable and ranges from small, simple, hill-like elevations to large, complex, winglike projections. Epipophyses provided large attachment areas for several neck muscles; large epipophyses are therefore indicative of a strong neck musculature. The presence of epipophyses is a synapomorphy (distinguishing feature) of the group Dinosauria. Epipophyses were present in the basal-most dinosaurs, but absent in the closest relatives of the group, such as ''Marasuchus'' and '' Silesaurus''. They were typical for most dinosaur lineages; however, they became lost in several derived theropod lineages in the wake of an increasingly S-shaped curvature of the neck. Several scientific papers have observed that epipophyses were present in v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postzygapophysis
The articular process or zygapophysis ( + apophysis) of a vertebra is a projection of the vertebra that serves the purpose of fitting with an adjacent vertebra. The actual region of contact is called the ''articular facet''.Moore, Keith L. et al. (2010) ''Clinically Oriented Anatomy'', 6th Ed, p.442 fig. 4.2 Articular processes spring from the junctions of the pedicles and laminæ, and there are two right and left, and two superior and inferior. These stick out of an end of a vertebra to lock with a zygapophysis on the next vertebra, to make the backbone more stable. * The superior processes or prezygapophysis project upward from a lower vertebra, and their articular surfaces are directed more or less backward (oblique coronal plane). * The inferior processes or postzygapophysis project downward from a higher vertebra, and their articular surfaces are directed more or less forward and outward. The articular surfaces are coated with hyaline cartilage. In the cervical vertebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
