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Dolichometopidae

Dolichometopidae is a family of corynexochid trilobites that lived in the Cambrian, from the lower Botomian to the Dresbachian. It contains the following genera:

Nepeidae

The Nepeidae are a family of trilobites, that lived during the late Middle Cambrian - earliest Upper Cambrian in what are today Australia, Antarctica, China and New Zealand. The Nepeidae can be recognized by a vaulted area between the front of th ...

Ptychagnostidae

Ptychagnostidae is a family of agnostid trilobites from the 5th Stage to the Paibian Age of the Cambrian. The family includes several important index fossils.

Redlichiida

Redlichiida is an order of trilobites, a group of extinct marine arthropods. Species assigned to the order Redlichiida are among the first trilobites to appear in the fossil record, about halfway during the Lower Cambrian. Due to the difficulty t ...

Fallotaspidoidea

The ”Fallotaspidoidea” are a superfamily of trilobites, a group of extinct marine arthropods. It lived during the Lower Cambrian and species occurred on all paleocontinents except for the Gondwana heartland. A member of this group, Profallotaspis ...

Archaeopteris macilenta

Archaeopteris macilenta is distinguished from other species of the genus by leaves which are divided into narrow segments at their tips. Sporangia were bone of different parts of the branches with ordinary foliage leaves. Archaeopteris macilenta ...

Carbactinoceratidae

Carbactinoceratidae is a family of extinct cephalopods with external shells that lived around 325 million years ago, during the Carboniferous period. They were the last group of orthocones to attain sizes exceeding one meter in length. One specim ...

Eophrynidae

Eophrynidae is a family of the extinct arachnid order Trigonotarbida. Eophrynids lived during the Carboniferous period in what is now modern Europe and North America.The family is probably found within the eophrynid assemblage clade).

Lamellorthoceratidae

Lamellorthoceratidae is a family of fossil orthoceratoids in the Orthocerida, defined by Curt Teichert in 1961. The lamellorthoceratids are placed in the superfamily Orthocerataceae in the Treatise on Invertebrate Paleontology. Lamellorthoceratid ...

Metzgeriothallus

Metzgeriothallus sharona is the oldest known liverwort fossil, dating to the Middle Devonian. It is a simple, thalloid organism. M. metzgerioides is known from more fragmentary material dating to the Carboniferous of Scotland.

Neocycloceras

Neocycloceras is an extinct genus of nautiloid included in the Pseudorthocerida that lived during the Late Devonian and Mississippian. Neoclycloceras is characterized by a slender, generally circular shell with slightly oblique,sinuous surficial ...

Oncocerida

The Oncocerida comprise a diverse group of generally small nautiloid cephalopods known from the Middle Ordovician to the Mississippian, in which the connecting rings are thin and siphuncle segments are variably expanded. At present the order cons ...

Poterioceratidae

Poterioceratidae is a family of nautiloid cephalopods included in the Oncocerida that lived during the period from the Early Devonian to the Early Carboniferous. Members of the Poterioceratidae are distinguished by a subcircular to compressed exo ...

Pseudactinoceras

Pseudactinoceras is an extinct nautiloid cephalopod included in the order Pseudorthocerida and the namesake of the family Pseudactinoceratidae.

Pseudactinoceratidae

Pseudactinoceraidae is a family in the nautiloid cephalopod order, Pseudorthocerida, known from the Upper Devonian and Lower Carboniferous. Pseuactinocerids characteristic long, straight and slightly curved shell with a subcentral siphuncle compo ...

Rutoceratidae

Rutoceratidae is a family of prototypical nautilids, derived probably from either Brevicoceratidae or Acleistoceratidae of the order Oncocerida early in the Devonian. Rutoceratidae comprise a family within the oncocerid superfamily Tainoceratacea ...

Siphonodella

Siphonodella is an extinct genus of conodonts. Siphonodella banraiensis from the late Devonian of Thailand. Siphonodella nandongensis from the early Carboniferous of Baping formation in China.

Whatcheeriidae

Whatcheeriidae is an extinct family of tetrapods which lived in the Mississippian sub-period, a subdivision of the Carboniferous period. It contains the genera Pederpes, Whatcheeria, and possibly Ossinodus. Fossils of a possible whatcheeriid have ...

Adnatoceras

Adnatoceras is a genus of mid Devonian to Pennsylvanian orthoconic nautiloid cephalopods included in the pseudorthocerid family Spyroceratidae, characterized by tubular, straight-sided, siphuncle segments that expand abruptly at the septal foreme ...

Aipoceratidae

The Aipoceratidae are a small family of Carboniferous nautilids which have smooth shells and loosely coiled to faintly impressed whorls and in which the aperture may be modified at maturity. The Aipoceratidae include the Lower Carboniferous Aipoc ...

Cornulitida

Cornulitida is an extinct order of encrusting animals from the Tentaculita class, which were common around the globe in the Ordovician to Devonian oceans, and survived until the Carboniferous. Organisms have shells, and subjected to predatory bor ...

Cravenoceras

Cravevoceras is an Upper Paleozoic ammonite in the goniatitidae family Cravenoceratidae, probably derived from Pachylyroceras and contemporary with other cravenoceratid genera like Caenolyroceras, Tympanoceras and later Alaoceras and Lyrogoniatit ...

Euphoberiidae

Euphoberiidae is an extinct family of archipolypodan millipedes known from the Upper Pennsylvanian of Europe and North America. The family includes relatively large millipedes measuring up to 30 cm long bearing distinctive spines and were the dom ...

Gephyrostegidae

Gephyrostegidae is an extinct family of reptiliomorph tetrapods from the Late Carboniferous including the genera Gephyrostegus, Bruktererpeton, and Eusauropleura. Gephyrostegus is from the Czech Republic, Brukterepeton is from Germany, and Eusaur ...

Oestocephalidae

Oestocephalidae is an extinct family of Late Carboniferous aïstopod lepospondyls. Fossils have been found from Ohio, Illinois, and Colorado in the United States, England, and the Czech Republic. It includes the genera Coloraderpeton and Oestoceph ...

Pipiscius

Pipiscius zangerli is an extinct species of lamprey that lived about 300 million years ago, during the Middle Pennsylvanian Epoch of the Carboniferous Period. It has a distinctive crown-like mouth that contains a ring of radially disposed teeth. ...

Pronorites

Pronorites is a prolecanitid genus from the middle and upper Carboniferous, upper Mississippian and Pennsylvanian. Distribution is wide spread. Pronorites like Pronoritidae produced discoidal shells with no prominent sculptures in which the ventr ...

Proterogyrinidae

Proterogyrinidae is an extinct family of tetrapods within the group Embolomeri that lived in the Carboniferous period. The most well-known genus is Proterogyrinus.

Sauropleurinae

Sauropleurinae is an extinct subfamily of lepospondyl amphibians. Along with the subfamily Urocordylinae, Sauropleurinae is part of the family Urocordylidae. Like other urocordylids, sauropleurines have long, flattened tails and superficially res ...

Scincosauridae

The Scincosauridae are an extinct family of nectridean lepospondyl amphibians. It includes the genera Scincosaurus and Sauravus. Unlike most other nectrideans, scincosaurids are thought to have been terrestrial.

Stethacanthidae

Stethacanthidae is an extinct family of prehistoric holocephalians. It is estimated to have existed approximately between 380 and 300 million years ago. Members of this family are noted for their peculiar dorsal fin.

Tuditanidae

Tuditanidae is an extinct family of tuditanomorph microsaurs. Fossils have been found from Nova Scotia, Ohio, and the Czech Republic and are Late Carboniferous in age. Tuditanids was average terrestrial microsaurs that resembled lizards. Postcran ...

Urocordylidae

The Urocordylidae are an extinct family of nectridean lepospondyl amphibians. Urocordylids lived during the Late Carboniferous and Early Permian in what is now Europe and North America and are characterized by their very long, paddle-like tails. ...

Urocordylinae

Urocordylinae is an extinct subfamily of lepospondyl amphibians that includes several small newt-like species with short skulls and elongated, flattened tails. Urocordylinae belongs to the family Urocordylidae, which also includes the subfamily S ...

Xyloiuloidea

Xyloiuloidea is an extinct superfamily of millipedes that existed from the Lower Devonian through the Upper Pennsylvanian period in Europe and North America.

Zosterogrammidae

Zosterogrammidae is an extinct family of millipedes containing three genera, each with a single species. Fossils are known from the Czech Republic, Scotland, and the USA. Zosterogrammidae constitutes the sole family of the order Zosterogrammida.

Anarthraspis

Anarthraspis is an extinct genus of placoderm fishes which lived during the Early Devonian period. The type species, Anarthraspis chamberlini, was a contemporary of the placoderm Bryantolepis. The specific epithet, chamberlini, honours British Pr ...

Anaspida

Anaspida is an extinct group of primitive jawless vertebrates that lived primarily during the Silurian period, and became extinct soon after the start of the Devonian. They were classically regarded as the ancestors of lampreys. Anaspids were sma ...

Benneviaspidida

Benneviaspidida is an order of osteostracan jawless fishes which lived in the Early Devonian. The fishes in order Benneviaspidida have a flat headshield and are dorsoventrally depressed. The first canal to lateral sensory field bifurcates near th ...

Encrinuridae

Encrinuridae is a family of trilobite within the order Phacopida that lived in what would be Africa, Asia, Australia, Europe, North America, and South America from the middle Ordovician to the early Devonian from 479 to 412.3 million years ago, e ...

Galeaspida

Galeaspida is an extinct taxon of jawless marine and freshwater fish. The name is derived from galea, the Latin word for helmet, and refers to their massive bone shield on the head. Galeaspida lived in shallow, fresh water and marine environments ...

Galeaspidiformes

Galeaspidiformes is an extinct order of jawless marine and freshwater fish, which lived in East Asia during the Lower Devonian period. The order was first named by Lui in 1965.

Herasmius

This genus is known from freshwater deposits of the early Eifelian-aged Verdalen member of the Stjordalen formation in the Wood Bay series, Spitzbergen, Norway. In addition to being smaller than Heterosteus, Herasmius differs by having a comparat ...

Hurdiidae

Hurdiidae is a clade of anomalocaridan, an extinct group of arthropods. It is the most long-lived anomalocaridan clade, lasting from the Cambrian period to the Devonian period.

Karoceratidae

Karoceratidae is a family of nautiloids within the order Oncocerida, characterized by straight or curved, laterally narrow, shells and slender, ventral siphuncles that are empty except in Karoceras. Siphuncle segments are inflated ventrally but s ...

Kujdanowiaspis

Kudjanowiaspis is an extinct genus of actinolepid placoderm from the Early Devonian of Nyrkiv, Ukraine and Poland. Kudjanowiaspis is only known from many well-preserved fragmentary head shield and skull fossils.

Paleoloricata

The Paleoloricata are valved polyplacophora without sutural laminae or insertion plates. The "order" probably represents a paraphyletic grouping.

Paropsonemid

The paropsonemids are problematic fossils known from the Early Cambrian to Devonian periods, which may be related to the Cambrian eldoniids. They are typified by the Chengjiang genus Paropsonema.

Petalocrinidae

Petalocrinidae is an extinct family of cladid crinoids from the Early Ordovician to Lower Devonian. Fossils of petalocrinoids have been found in China, Europe and the United States. All petalocrinoids five, flattened hands formed by the merger of ...

Praenuculidae

Praenuculidae is an extinct family of prehistoric bivalves in the superfamily Nuculoidea. Praenuculidae species lived from the early Ordovician, Arenig stage through the Early Devonian Emsian stage. Praenuculidae fossils are found worldwide, pres ...