''Collilongus'' (meaning "long neck") is an extinct

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 n ...

of small

archosauriform Archosauriformes (Greek for 'ruling lizards', and Latin for 'form') is a clade of diapsid reptiles that developed from archosauromorph ancestors some time in the Latest Permian (roughly 252 million years ago). It was defined by Jacques Gauthie ...

, possibly a

rauisuchia "Rauisuchia" is a paraphyletic group of mostly large and carnivorous Triassic archosaurs. Rauisuchians are a category of archosaurs within a larger group called Pseudosuchia, which encompasses all archosaurs more closely related to crocodilians ...

n, known from

Early Triassic The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a ...

(

Olenekian In the geologic timescale, the Olenekian is an age in the Early Triassic epoch; in chronostratigraphy, it is a stage in the Lower Triassic series. It spans the time between Ma and Ma (million years ago). The Olenekian is sometimes divid ...

age) rocks of

Czatkowice 1 Czatkowice may refer to: * Czatkowice, Lesser Poland Voivodeship in Gmina Krzeszowice, in Kraków County, Lesser Poland Voivodeship (S Poland) * Czatkowice, Lower Silesian Voivodeship in Gmina Milicz, Milicz County in Lower Silesian Voivodeship ...

Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...

. It was first named by Magdalena Borsuk−Białynicka; and Andriej G. Sennikov in 2009. The type and only known species is ''Collilongus rarus''. It is a rare component of the Czatkowice 1 fauna, known only from vertebrae. ''Collilongus'' was a contemporary of the more common archosauriform ''

Osmolskina left, 210px, Fossil elements. ''Osmolskina'' is a genus of archosauriform reptile which lived during the Early Triassic in what is now Poland. The type species, ''Osmolskina czatkowicensis'', was described by Magdalena Borsuk−Białynicka and ...

''.

References

Early Triassic reptiles of Europe Prehistoric archosauriforms Fossil taxa described in 2009 Fossils of Poland Prehistoric reptile genera {{triassic-reptile-stub