''Albisaurus'' (meaning "Albis

iver Iver is a large civil parish in Buckinghamshire, England. In addition to the central clustered village, the parish includes the residential neighbourhoods of Iver Heath and Richings Park. Geography, transport and economy Part of the 43-square- ...

lizard") was once thought to be a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

dinosaur Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...

, but is now thought to be a non-dinosaurian

archosaur Archosauria () is a clade of diapsids, with birds and crocodilians as the only living representatives. Archosaurs are broadly classified as reptiles, in the cladistic sense of the term which includes birds. Extinct archosaurs include non-avia ...

. Brinkmann, W. (1988). Zur Fundgeschichte und Systematik der Ornithopoden (Ornithischia, Reptilia) aus der Ober-Kreide von Europa. ''Documenta Naturae'' 45:1-157. It was first described by Antonin Fritsch (also spelt Frič), a Czech

palaeontologist Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of foss ...

, in 1893, but the remains are sparse. The validity of the

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriat ...

cannot be proven based on the

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

remains, and it is usually marked as a ''

nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...

''. It lived during the

Turonian The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded b ...

Santonian The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. ...

stages of the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

period (about 90–84 million years ago). The generic name ''Albisaurus'' is derived from the

Latin Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through ...

''albus'' (''albi-''); after the

River Albis A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

, as it was known in

Roman Roman or Romans most often refers to: * Rome, the capital city of Italy * Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a lett ...

times, now the Bílé Labe (or "White Elbe"), a part of the

Elbe The Elbe (; cs, Labe ; nds, Ilv or ''Elv''; Upper and dsb, Łobjo) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Re ...

River system, which flows through the eastern Czech Republic, near a site where the type fossils were found (

Srnojedy Srnojedy is a municipality and village in Pardubice District in the Pardubice Region of the Czech Republic. It has about 800 inhabitants. Paleontology In 1893, a few bone fragments of a Cretaceous reptile (presumably a small dinosaur of uncertai ...

Pardubice Pardubice (; german: Pardubitz) is a city in the Czech Republic. It has about 89,000 inhabitants. It is the capital city of the Pardubice Region and lies on the Elbe River. The historic centre is well preserved and is protected as an urban monum ...

); plus the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

''sauros'' meaning "

lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia altho ...

". Fritsch originally published the name as ''Iguanodon albinus'' in 1893. After re-evaluating the fossils, however, he decided they were distinct from ''Iguanodon''. In 1905, he published a new name for this material, calling it ''Albisaurus scutifer''. However, ''I. albinus'' has priority and is therefore the correct name for the material as it was based on the same type specimen as ''A. scutifer''.Fritsch, A., 1905. Synopsis der Saurier der Bohmischen Kreideformation. SITZ. KONIG. BOHM. GES. WISS., II. Classe. 7 pp. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specim ...

is ''Albisaurus albinus''. The specific name albinus is derived from the Latin ''albus'' (''alb-''), "white, bright", and the Latin suffix ''-inus''; "belonging to", alluding to the modern-day Bile Labe of the western Czech Republic, known during the rule of the Roman Empire for the purity and clarity of the water.

References

Prehistoric reptile genera Prehistoric archosaurs Extinct animals of Europe Fossil taxa described in 1905 {{paleo-archosaur-stub