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Krabisuchus
''Krabisuchus'' is an extinct genus of alligatoroid crocodylian that lived in what is now Thailand during the Priabonian, Late Eocene. It was first named by paleontologists Jeremy A. Martin and Komsorn Lauprasert in 2010, and the type species is ''K. siamogallicus''. While originally interpreted as a relative of ''Allognathosuchus'', later studies placed ''Krabisuchus'' in the clade Orientalosuchina, an enigmatic group of crocodilians from the Cretaceous to Paleogene of Asia with disputed affinities. Fossils have been found from the Krabi Basin of southern Thailand and include mostly Skull, cranial and Mandible, mandibular elements as well as some postcranial remains. Based on these remains ''Krabisuchus'' was a relatively small animal with a short and blunt snout. During the Eocene the Krabi Basin was likely covered by dense tropical forest and featured bodies of freshwater like ponds, marshes and swamps that were home to crocodiles and turtles. It has been speculated that ''Krabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orientalosuchina
Orientalosuchina is an extinct clade of alligatoroid crocodylians from Southeast Asia, Southeast and East Asia that lived between Maastrichtian and Eocene. The clade was named as the result of a 2019 study by Massonne ''et al.'' that included several extinct alligatoroid taxa from Asia and found that they were all closely related and together formed a monophyletic clade as basal (phylogeny), basal members of Alligatoroidea. They defined this clade as "the most inclusive clade containing ''Orientalosuchus, Orientalosuchus naduongensis'', ''Krabisuchus, Krabisuchus siamogallicus'', ''Eoalligator chunyii'', ''Jiangxisuchus, Jiangxisuchus nankangensis'' and ''Protoalligator huiningensis'', but not ''Brachychampsa montana'', ''Stangerochampsa mccabei'', ''Leidyosuchus canadensis'', ''Diplocynodon darwini'', ''Bottosaurus harlani'', or any species of recent Crocodylia". History of discovery While Orientalosuchina have only been recognized as a clade relatively recently, the first disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajosuchus
''Navajosuchus'' is an extinct genus of alligatorine crocodylian. Its fossils have been found in the Paleocene-age Nacimiento Formation of the San Juan Basin, New Mexico (United States). It was named in 1942 by Charles C. Mook, and the original type species was ''N. novomexicanus''. ''N. novomexicanus'' was based on AMNH 5186, a partial skull collected in 1913. Later research showed that ''Navajosuchus novomexicanus'' was the same as the earlier-named ''Allognathosuchus mooki''. However, ''A. mooki'' does not belong to the genus ''Allognathosuchus'', and so the name of the crocodilian becomes ''Navajosuchus mooki''. Under whichever name is used, this animal would have been a generalized predator of the Nacimiento floodplains. It was the most common Nacimiento Formation crocodilian, found in both the Puercan and Torrejonian faunal assemblages. The precise placement of ''Navajosuchus'' within Alligatoroidea is disputed. Some studies have shown it as a basal member of Alliga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2010 In Paleontology
Plants Bennettitales Cycadales Czekanowkiales Pinales Pteridospermopsida Angiosperms Other plants Molluscs Newly named bivalves Arthropods Fishes Amphibians Newly named amphibians Basal reptiles Newly named basal reptiles Ichthyopterygians Newly named ichthyopterygians Lepidosauromorphs Newly named plesiosaurs Newly named basal lepidosaurs Newly named lizards Newly named snakes Turtles Newly named turtles Archosauromorphs Newly named basal archosauromorphs Archosaurs Synapsids Newly named non-mammalian synapsids Mammals Other animals Footnotes Complete author list As science becomes more collaborative, papers with large numbers of authors are becoming more common. To prevent the deformation of the tables, these footnotes list the contributors to papers that erect new genera and have many authors. References {{Reflist, 2 2010 in paleontology, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Buffetaut
The given name Eric, Erich, Erikk, Erik, Erick, Eirik, or Eiríkur is derived from the Old Norse name ''Eiríkr'' (or ''Eríkr'' in Old East Norse due to monophthongization). The first element, ''ei-'' may be derived from the older Proto-Norse ''* aina(z)'', meaning "one, alone, unique", ''as in the form'' ''Æ∆inrikr'' explicitly, but it could also be from ''* aiwa(z)'' "everlasting, eternity", as in the Gothic form ''Euric''. The second element ''- ríkr'' stems either from Proto-Germanic ''* ríks'' "king, ruler" (cf. Gothic ''reiks'') or the therefrom derived ''* ríkijaz'' "kingly, powerful, rich, prince"; from the common Proto-Indo-European root * h₃rḗǵs. The name is thus usually taken to mean "sole ruler, autocrat" or "eternal ruler, ever powerful". ''Eric'' used in the sense of a proper noun meaning "one ruler" may be the origin of ''Eriksgata'', and if so it would have meant "one ruler's journey". The tour was the medieval Swedish king's journey, when newly el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxilla
In vertebrates, the maxilla (: maxillae ) is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis. The mandible is the movable part of the jaw. Anatomy Structure The maxilla is a paired bone - the two maxillae unite with each other at the intermaxillary suture. The maxilla consists of: * The body of the maxilla: pyramid-shaped; has an orbital, a nasal, an infratemporal, and a facial surface; contains the maxillary sinus. * Four processes: ** the zygomatic process ** the frontal process ** the alveolar process ** the palatine process It has three surfaces: * the anterior, posterior, medial Features of the maxilla include: * t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Premaxillae
The premaxilla (or praemaxilla) is one of a pair of small cranial bones at the very tip of the upper jaw of many animals, usually, but not always, bearing teeth. In humans, they are fused with the maxilla. The "premaxilla" of therian mammals has been usually termed as the incisive bone. Other terms used for this structure include premaxillary bone or ''os premaxillare'', intermaxillary bone or ''os intermaxillare'', and Goethe's bone. Human anatomy In human anatomy, the premaxilla is referred to as the incisive bone (') and is the part of the maxilla which bears the incisor teeth, and encompasses the anterior nasal spine and alar region. In the nasal cavity, the premaxillary element projects higher than the maxillary element behind. The palatal portion of the premaxilla is a bony plate with a generally transverse orientation. The incisive foramen is bound anteriorly and laterally by the premaxilla and posteriorly by the palatine process of the maxilla. It is formed from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procaimanoidea
''Procaimanoidea'' ("Before Caiman-forms") is an extinct genus of alligatorid from the Eocene of North America. It was named posthumously in 1946 by Charles W. Gilmore; the type species is ''P. utahensis'', from the Uintan (middle Eocene) of Utah. It is based on USNM 15996, a nearly complete skull and partial left hind leg. A second species, ''P. kayi'', was named in 1941 by C.C. Mook as a species of '' Hassiacosuchus'', for remains from the Bridgerian (early Eocene) of Wyoming. It was reassigned to ''Procaimanoidea'' in 1967 by Wassersug and Hecht. Description ''Procaimanoidea'' was a small alligatorid, and slightly heterodont, the last four teeth on each side of the jaws having blunt tips. Phylogeny Recent studies have consistently resolved ''Procaimanoidea'' as a member of Alligatorinae, although its relative placement is disputed, as shown by the cladograms below. Cladogram from 2018 Bona ''et al.'' study: Cladogram from 2019 Massonne ''et al.'' study: Cladogram fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arambourgia
''Arambourgia'' is an extinct monotypic genus of alligatorine crocodylian from Europe. It was named in 1905 as ''Allognathosuchus gaudryi''. It was made a separate genus ''Arambourgia'' in 1940. This was synonymized with '' Allognathosuchus haupti'' in 1990 (now known as '' Hassiacosuchus haupti''), but later reassigned as its own genus once again in 2004. ''Arambourgia'' was likely to have been part of an early dispersal event of alligatorines from North America to Europe during the Eocene epoch. ''Arambourgia'' had non-serrated teeth and a deep orienirostral snout, unlike the flatter snouts of most other alligatorids. Recent studies have consistently resolved ''Arambourgia'' as a member of Alligatorinae, although its relative placement is disputed, as shown by the cladogram A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit (anatomy)
In anatomy Anatomy () is the branch of morphology concerned with the study of the internal structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old scien ..., the orbit is the Body cavity, cavity or socket/hole of the skull in which the eye and Accessory visual structures, its appendages are situated. "Orbit" can refer to the bony socket, or it can also be used to imply the contents. In the adult human, the volume of the orbit is about , of which the eye occupies . The orbital contents comprise the eye, the Orbital fascia, orbital and retrobulbar fascia, extraocular muscles, cranial nerves optic nerve, II, oculomotor nerve, III, trochlear nerve, IV, trigeminal nerve, V, and abducens nerve, VI, blood vessels, fat, the lacrimal gland with its Lacrimal sac, sac and nasolacrimal duct, duct, the eyelids, Medial palpebral ligament, medial and Lateral palpebral raphe, lateral palpebr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontologists
Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geologic time, and assess the interactions between prehistoric organisms and their natural environment. While paleontological observations are known from at least the 6th century BC, the foundation of paleontology as a science dates back to the work of Georges Cuvier in 1796. Cuvier demonstrated evidence for the concept of extinction and how life of the past was not necessarily the same as that of the present. The field developed rapidly over the course of the following decades, and the French word ''paléontologie'' was introduced for the study in 1822, which was derived from the Ancient Greek word for "ancient" and words describing relatedness and a field of study. Further advances in the field accompanied the work of Charles Darwin who popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaul
Gaul () was a region of Western Europe first clearly described by the Roman people, Romans, encompassing present-day France, Belgium, Luxembourg, and parts of Switzerland, the Netherlands, Germany, and Northern Italy. It covered an area of . According to Julius Caesar, who took control of the region on behalf of the Roman Republic, Gaul was divided into three parts: Gallia Celtica, Gallia Belgica, Belgica, and Gallia Aquitania, Aquitania. Archaeologically, the Gauls were bearers of the La Tène culture during the 5th to 1st centuries BC. This material culture was found throughout Gaul and as far east as modern-day southern Poland, Slovakia, and Hungary. Warbands led by the Gaul Brennus (leader of the Senones), Brennos Battle of the Allia, sacked Rome in 387 BC, becoming the only time Rome was conquered by a foreign enemy in 800 years. However, Gallia Cisalpina was conquered by the Romans in 204 BC and Gallia Narbonensis in 123 BC. Gaul was invaded after 120 BC by the Cimbri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
