Fossil taxa described in 1973

Shantungosaurus () is an extinct genus of very large herbivorous saurolophine hadrosaurid dinosaur found in the Late Cretaceous Wangshi Group of the Shandong Peninsula in China, containing a single species, Shantungosaurus giganteus. The stratigraphic interval of Shantungosaurus ranges from the top of the Xingezhuang Formation to the middle of the Hongtuya Formation, middle to late Campanian in age. Shantungosaurus is so far the largest hadrosauroid taxon in the world, with size estimates around in length and in body mass.

Eudimorphodon is an extinct genus of pterosaur that was discovered in 1973 by Mario Pandolfi in the town of Cene, Italy and described the same year by Rocco Zambelli. The nearly complete skeleton was retrieved from shale deposited during the Late Triassic (mid to late Norian stage, 219-215 million years ago), making Eudimorphodon one of the oldest pterosaurs known. It had a wingspan of about . Eudimorphodon is known from several skeletons, including juvenile specimens.

Wuerhosaurus is an extinct genus of stegosaurine stegosaur dinosaurs from the Early Cretaceous of China. The genus contains two species, Wuerhosaurus homheni, the type species named in 1973, and Wuerhosaurus ordosensis, named in 1993. It is one of the youngest (most recent) known stegosaurs in the fossil record, alongside Mongolostegus and Yanbeilong.

Megistotherium ("greatest beast") is an extinct genus of very large hyaenodont belonging to the family Hyainailouridae that lived in Africa and possibly Asia during the early-middle Miocene epoch. The first specimen, a near-complete skull, was discovered in 1963 by Robert J. G. Savage in Libya, and was kept at the Natural History Museum in London alongside postcrania discovered in the prior few years. In 1973, Savage described Megistotherium based on these elements, with the skull serving as the type specimen. It was later determined that the assigned postcrania actually came from an amphicyon

Enaliarctos is an extinct genus of pinnipedimorph, and may represent the ancestor to all pinnipeds. The five species in the genus Enaliarctos have been recovered from late Oligocene and early Miocene (ca. 28-17 million years ago) strata of California and Oregon.

Efraasia (pronounced "E-FRAHS-ee-A") is a genus of basal sauropodomorph dinosaur. It was a herbivore which lived during the middle Norian stage of the Late Triassic, around 210 million years ago, in what is now Germany. It was named in 1973 after Eberhard Fraas, who during the early twentieth century collected what were the original type specimens. The specimens were at first assigned to three already existing genera and so became divided among three separate species: Teratosaurus minor, Sellosaurus fraasi and Paleosaurus diagnosticus. In 2003, these were combined into a single valid spec

Kelmayisaurus (meaning "Karamay lizard") is an extinct genus of carcharodontosaurian theropod dinosaur from the Early Cretaceous. It was roughly long and its name refers to the petroleum-producing city of Karamay in the Xinjiang province of western China near where it was found.

Noripterus (meaning "lake wing" from Mongolian nuur, "lake" and Greek pteron, "wing") is a genus of dsungaripterid pterodactyloid pterosaur from Lower Cretaceous of Asia. The type species, Noripterus complidicens, is from the Wuerho Pterosaur Fauna (WPF) of the Lianmuqin Formation and Shengjinkou Formation in the Junggar Basin of Xinjiang, China. Both formations have seen various age estimates, with data suggest at least some of the WPF dates to the middle Valanginian, but the upper and lower bounds of these pterosaur bearing deposits remains unclear. It was first named by Yang Zhongjian (also

Tugulusaurus (meaning "Tugulu lizard") is a genus of coelurosaurian theropod dinosaur, belonging to the Alvarezsauroidea, that is known from the Early Cretaceous Tugulu Group in the Urhe area of China. It was one of the first members of Alvarezsauria ever discovered. The type and only known species is T. faciles.

Phaedrolosaurus (meaning "elated lizard") is a dubious genus of coelurosaurian (perhaps dromaeosaurid) theropod dinosaur, based on an isolated and non-diagnostic tooth from the Early Cretaceous Lianmuqin Formation of Wuerho, in the autonomous region of Xinjiang, China.

Phyllodon (meaning "leaf tooth") is a genus of small ornithischian dinosaur from the Late Jurassic (Kimmeridgian) Camadas de Guimarota Formation of Leiria, Portugal and possibly also the Middle Jurassic (Bathonian) Chipping Norton Limestone of England. It may have been closely related to contemporaneous ornithischian dinosaurs from North America. This genus is known from teeth and possibly partial lower jaws. The name is also in use for a genus of modern moss, but this is not considered to be a problem because the two organisms are in two different kingdoms.

Wyleyia is an extinct genus of indeterminate maniraptoran dinosaurs containing a single species, Wyleyia valdensis, known from the early Cretaceous period of Sussex, England. The genus is known from a single specimen, a damaged right humerus. It was named to honor J. F. Wyley, who found the specimen in Weald Clay deposits of Henfield in Sussex (England). The specific name valdensis means "from the Weald".

Turfanosuchus is a genus of archosauriform reptile, likely a gracilisuchid archosaur, which lived during the Middle Triassic (Anisian) of northwestern China. The type species, T. dabanensis, was described by C.C. Young in 1973, based on a partially complete but disarticulated fossil skeleton (IVPP V.32237) found in the Kelamayi Formation of the Turfan Basin.

Trimucrodon is a genus of ornithischian dinosaur from the Late Jurassic Lourinhã Formation of Portugal. The type, and currently only, species is T. cuneatus.

Dolichuranus is an extinct genus of dicynodont therapsids from the Middle Triassic Omingonde Formation of Namibia and the Ntawere Formation of Zambia.

species of bird

Echmatocrinus brachiatus is an extinct species of Cambrian animal which resembles a crinoid or an octocoral. Its exact taxonomy is still a subject of debate. It is known only from the Burgess Shale. Around 20 specimens of Echmatocrinus are known; these comprise <0.02% of the community.

Praekogia is an extinct genus of cetacean in the family Kogiidae that lived during the Miocene, containing one species: P. cedrosensis. Fossils have been found in Mexico (Baja California).

thumb | right | Image image of Protocaptorhinus pricei fossil Protocaptorhinus is an extinct genus of Early Permian (Cisuralian epoch) captorhinid tetrapods known from Texas of the United States. It is known from the holotype MCZ&nbsp;1478, a three-dimensionally preserved partial skull. It was collected in the Rattlesnake Canyon site from the Petrolia Formation. It was first named by Clark and Carroll in 1973 and the type species is Protocaptorhinus pricei. The generic name means "first Captorhinus" (from Greek) and the specific name honours Llewellyn Ivor Price.

Mesogyrus is an extinct genus of fossil beetles in the family Gyrinidae, containing the following species:

Abakania is an extinct genus of corynexochid trilobite in the family Corynexochidae. It lived during the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period.

Epiborkhausenites is an extinct genus of moth in the concealer moth family Oecophoridae and containing a single species Epiborkhausenites obscurotrimaculatus. The species is known only from Middle Eocene, Bartonian stage, Baltic amber deposits near the town of Palanga in Lithuania.

Titanogomphodon is an extinct genus of diademodontid cynodonts from the Middle Triassic Omingonde Formation of Namibia. It is known from a single partial skull that was described in 1973 from the Omingonde Formation. The type and only species is Titanogomphodon crassus. At about , the skull of Titanogomphodon was significantly larger than that of its closest relative, Diademodon (hundreds of skulls of Diademodon are known and none exceed in length). Its teeth are similar to those of another group of cynodonts called Traversodontidae, but the similarities are likely the result of convergent evo

thumb|left|Life restoration Turfanodon is an extinct genus of dicynodont therapsid from the Late Permian Sunan, Guodikeng, and Naobaogou Formations of China. The holotype of T. bogdaensis was discovered between 1963-1964 and was originally named in 1973 by A. Sun with the type species Turfanodon bogdaensis, Turfanodon was reclassified as a junior synonym of the related Dicynodon in 1988 by G. M. King. T. bogdaensis remained a species of Dicynodon for over two decades before the genus was reinstated in 2011 in a revision of the taxonomy of Dicynodon by palaeontologist Christian Kammerer. A sec

Agerinia is a genus of adapiform primate that lived in Europe during the early Eocene. Fossils have been found in the Grès d'Assignan, Lignites de Soissonais, and Calcare d'Agel Formations of France, the Corçà and Escanilla Formations of Spain and the Kuldana Formation of Pakistan.