Топ-100 ★ Free online encyclopedia. Did you know? page 289

★ Free online encyclopedia. Did you know? page 289



                                               

Cobcrephora

Cobcrephora is a genus of that resembles the Palaeoloricates, known from the Silurian of Gotland. Its interpretation as a polyplacophoran is widely challenged. Its clam shell is unique because Cobcrephora was described on the basis of isolated ph ...

                                               

Cyrtocycloceras

Cyrtocycloceras is a genus of orthocerids from the Middle Silurian of Europe included in the Paraphragmitidae. Shell, or shell, of Cyrtocycloceras-moderately expanding exogastric cyrtocone condensed, curved, like a rocking chair rocker chair. Can ...

                                               

Gaspocyrtoceras

Gaspocyrtoceras is a genus of orthocerids included in the Paraphragmitidae. Its fossils are limited to North America and have been found in Wisconsin and Quebec. Shell Gaspocyrtoceras roughly annularted exogastric cyrtocone. The curvature is upwa ...

                                               

Hughmilleriidae

Hughmilleriidae is a family of eurypterids, an extinct group of aquatic arthropods. The hughmilleriids were the most basal members of the superfamily Pterygotioidea, in contrast with the more derived families Pterygotidae and Slimonidae. Despite ...

                                               

Slimonidae

Slimonidae is a family of eurypterids, an extinct group of aquatic arthropods. Slimonids were members of the superfamily Pterygotioidea and the family most closely related to the derived pterygotid eurypterids, which are famous for their chelicer ...

                                               

Tetrameroceras

Tetrameroceras is a genus of short, essentially straight, breviconic, nautiloid cephalopods from the middle and Upper Silurian of Europe and North America included in the oncocerid family Hemiphragmoceraidae. Camera body is inflated, dorsal and v ...

                                               

Trimeroceras

Trimeroceras is a genus of straight oncocerid from the Middle and Upper Silurian of Europe, and type for the Trimeroceratidae. A principal character is the slit-like aperture with a hyponomic sinus for the water-jet funnel, and mid dorsal and dor ...

                                               

Aacocrinus

Aacocrinus is a genus of extinct sea lily from the Actinocrinitidae family. It has been shown that it was an attached stationary organism that blindly fed on passing organism. It was composed of Mg calcite and its habitat included the upper-level ...

                                               

Stylophora

The stylophorans are an extinct, possibly polyphyletic group allied to the Paleozoic Era echinoderms, comprising the prehistoric cornutes and mitrates. It is synonymous with the subphylum Calcichordata. Their unusual appearances have led to a var ...

                                               

Microschedia

The fossils are approximately discoid, and covered with a net-like pattern. Fine hair-like projections extend beyond the edge of this almost-flat, firm but non-mineralized "shell", which bears no trace of muscle scars.

                                               

Tommotiid

Tommotiids are Cambrian shelly fossils thought to belong to the Brachiopod + Phoronid lineage. Most of the tommotiids are mineralised with calcium phosphate, not calcium carbonate. although kremandala examples hint at the fact that some types of ...

                                               

Franhueberia

Franhueberia is an extinct monospecific genus of vascular land plants described from Early Devonian outcrops of the Battery Point Formation along the south shore of Gaspe Bay, Quebec, Canada.

                                               

Acanthoclymenia

Acanthoclymenia is genus of ammonoid cephalopods belonging to the Acanthoclymeniidae family. Species belonging to this genus lived in middle and late Devonian. Its fossils were found in Europe, Asia, north Africa, North America and Australia. Spe ...

                                               

Exiteloceras

Exiteloceras is an ammonite genus from the Late Cretaceous. Exiteloceras has been proposed by alpheus Hyatt in 1894 for the detailed Ammonite with shells loosely coiled in a plane, in the early whorls ranges from straight limbs connected by elbow ...

                                               

Hildoceratinae

Hildoceratinae is an extinct subfamily of cephalopods belonging to the family Hildoceratidae. Ammonites of this subfamily had shells with elliptical or quadrate whorl section with keel or tricarinate, bisulcate venter. Ribs were variable, from fa ...

                                               

Menuthiocrioceras

Menuthiocrioceras is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea. Fossils belonging to this genus were found in Madagascar and Indonesia.

                                               

Nostoceras

Nostoceras is an extinct genus of ammonites. The etymology of the name Nostoceras comes from "nostos" meaning return and "ceros" meaning horn, named as such by Alpheus Hyatt because it bends back on itself.

                                               

Osperleioceras

Osperleioceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian stage. Its fossils were found in Europe and South America. First species of this genus, Osp ...

                                               

Ostlingoceras

Ostlingoceras conlini Clark, 1955. Ostlingoceras rorayensis Collignon, 1964. Ostlingoceras puzosianum dOrbigny, 1842. Ostlingoceras brandi Young, 1958.

                                               

Phyllopachyceras

Phyllopachyceras is an extinct genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived in the Cretaceous, from Hauterivian to Maastrichtian to age.

                                               

Reynesoceras

Reynesoceras is genus of ammonites that lived during the upper Pliensbachian stage of early Jurassic. It has evolved from Prodactylioceras, or Cetonoceras. Dactylioceras has probably evolved from this genus. Aveyroniceras is a name for macroconch ...

                                               

Acerosodontosaurus

Acerosodontosaurus is an extinct genus of neodiapsid reptiles that lived during the Upper Permian of Madagascar. The only species of Acerosodontosaurus, A. piveteaui, is known from a natural mold of a single partial skeleton including a crushed s ...

                                               

Aioloceras

Aioloceras is an ammonite, order Ammonitida, from near the end of the Early Cretaceous. The shell is compressed with the outer whorl covering much of the previous. Sides are slightly convex, converge toward a narrowly ached venter. Inner whorls h ...

                                               

Cyclolobus

Clyclolobus is a smooth, essentially involute subdiscoidal goniatitid ammonoid that has sutures with a bifurcate ventral lobe, flared outwardly at the end, in which the halves may be secondarily trifurfate, ending in sharp, narrow projections. La ...

                                               

Edingerella

Edingerella is an extinct genus of temnospondyl amphibian from the Early Triassic of Madagascar. It is a basal capitosaur closely related to Watsonisuchus.

                                               

Oecoptychius

Oecophtychius was named by Neumayr in 1878. It is placed into Oecoptychitidae, a family of dwarf ammonites established by Arkell, 1957, that is a part of the superfamily Stephanoceratoidea.

                                               

Oxycerites

Oxycerites is an extinct ammonoid cephalopod belonging to the haploceratoid family, Oppeliidae, that lived during the Middle Jurassic. Oxycerites shells involute, compressed, and generally smooth, with a sharply rounded Venter on the outer rim, u ...

                                               

Sonneratia (ammonite)

Sonneratia is an extinct genus of Cretaceous ammonites included in the family Hoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period, Aptian - Albian age.

                                               

Uranocentrodon

Uranocentrodon is an extinct genus of the family Rhinesuchidae. Known from a 50 centimetres skull, Uranocentrodon was a large predator with a length up to 3.75 metres. Originally named Myriodon by van Hoepen in 1911, it was transferred to a new g ...

                                               

Afghanocare

Afghanocare is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period.

                                               

Anakamacops

Anakamacops is a genus of dissorophid temnospondyl from the early Middle Permian of China. It is known from the right side of a snout that was described in 1999 from the Dashankou locality of the Xidagou Formation, which is within the city of Yum ...

                                               

Anderssonoceras

Anderssonoceras is a genus of small, smooth ammonites with a flared umbilical shoulder, like Prototoceras, assigned to the ceratitid family Anderssonoceratidae as the type, but once included in the Otoceratidae. Anderssonoceras comes from the upp ...

                                               

Arthricocephalus

Arthricocephalus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the later part of the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was ...

                                               

Changxingia

Changxingia is a genus of prehistoric lobe-finned fish that belonged to the coelacanth family Mawsoniidae. It lived during the Late Permian in Zhejiang, southern China. It contains two species, C. aspiratilis and C. weii, which were named in 1981 ...

                                               

Chaoaspis

Chaoaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of ...

                                               

Crepicephalina

Crepicephalina is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period, which lasted from approximately 542 to 488 million years ago.

                                               

Eosaurichthys

Eosaurichthys chaoi is an extinct saurichthyid bony fish that lived during the Late Permian epoch of China. It closely resembles its daughter genus, Saurichthys, in form and morphology.

                                               

Grandioculus

Grandioculus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period, which lasted from approximately 542 to 488 million years ago.

                                               

Guangxicyon

Guangxicyon is an extinct genus of amphicyonid carnivoran, or "bear dog," which inhabited Central Asia during the Late Eocene subepoch, 37 - 33 Ma, existing for approximately 4 million years. Guangxicyon was named Zhai et al. in 2003. The type an ...

                                               

Guizhouichthyosaurus

Guizhouichthyosaurus is an extinct genus of Ichthyosaur which existed during the lower Carnian stage of the Late Triassic in southwest China. The genus contains the single species Guizhouichthyosaurus tangae. It had been referred to the genus Sha ...

                                               

Hongyu

Hongyu, represented by its type species Hongyu chowi, is an extinct Devonian lobe-finned fish. About 1.5 m in length, it resembles both Elpistostegalia and Rhizodontida, making its phylogenetic placement uncertain. The type specimen was discovere ...

                                               

Jiangxia (mammal)

Jiangxia chaotoensis is a Chinese mesonychid from the Nongshanian division of the Upper Paleocene. It may be related to the genera Dissacus and Hukoutherium. J. chaotoensis was named in honor of Jiangxi province, China, where he was found.

                                               

Jibeinia

Jibeinia is a genus of enantiornithean bird. Only one species has been named, Jibeinia luanhera. It is known from one holotype fossil found in the Hebei province, Peoples Republic of China. This fossil is now lost. The holotype was, however, desc ...

                                               

Kenichthys

Kenichthys is a genus of sarcopterygian fish from the Devonian period, and a member of the clade tetrapodomorpha. The only known species of the genus is Kenichthys campbelli, the first remains of which were found in China in 1993. The genus is im ...

                                               

Lambdopsalis

Lambdopsalis bulla is an extinct multituberculate mammal from the Late Paleocene of China. It is placed within the suborder Cimolodonta and is a member of the superfamily Taeniolabidoidea. Fossil remains have been found in Upper Paleocene strata ...

                                               

Mesoclupea

Mesoclupea showchangensis is an extinct ichthyodectiform ray-finned fish that lived in freshwater environments in what is now China during the Early Cretaceous epoch. It differs from its sister genus, Chuhsiungichthys, primarily by having a more ...

                                               

Mizia

The only known specimen is of a mostly complete thoracic armor from the Xujiachong Formation in Qujing, Yunnan. The armor is very similar to that of Yunnanolepis, but is distinguished by a unique floral pattern of raised ridges and grooves radiat ...

                                               

Paralycoptera

Paralycoptera wui is an extinct species of basal osteoglossoid from Early Cretaceous freshwater environments of what is now China. P. wui was originally described as a lycopterid osteoglossomorph close to Lycoptera, though, later, on the basis of ...

                                               

Parayunnanolepis

Parayunnanolepis xitunensis is an extinct, primitive antiarch placoderm. The fossil specimens, including a marvelously preserved, intact specimen, are known from the Lochkovian Epoch-aged Xitun formation of Early Devonian Yunnan. The armor is ver ...

                                               

Permocupedidae

Permocupedidae is a family of Protocoleopteran beetle in the superfamily Permocupedoidea. One monotypic genus with the species Linicupes yinpinensis, was described in 2014 from late Permian fossils in found in China.

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