''Cretorectolobus'' is an extinct

carpet shark Carpet sharks are sharks classified in the order (biology), order Orectolobiformes . Sometimes the common name "carpet shark" (given because many species resemble ornately patterned carpets) is used interchangeably with "wobbegong", which is the ...

. It was described by G.R. Case in 1978, and the type species is ''C. olsoni'', which existed during the

Campanian The Campanian is the fifth of six ages of the Late Cretaceous epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campa ...

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

and the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. Another species, ''C. gracilis'', was described by Charlie J. Underwood and Mitchell in 1999, from the

Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.6 ± 2 Ma and 125.77 (million years ago). The Hauterivian is preceded by the Valangi ...

Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 125.77 Ma (million years ago) and 121.4 ± 1.0 Ma (Historically, this stage was placed at 129.4 million to approximately 125 million years ago) It is a ...

strata of the

Speeton Clay Formation The Speeton Clay Formation (SpC)Speeton Clay Formation
- England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. The

species epithet Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In Taxonomy (biology), taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany) ...

refers to the shark's teeth, which Underwood and Mitchell described as gracile and narrow in form.C.J. Underwood & Mitchell, 1999. ''Albian and Cenomanian selachian assemblages from north-east England.'' Special Papers in Palaeontology, 60, January 1999: 9-56. A new species, ''C. robustus'', was described from the

Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...

by Underwood and Stephen L. Cumbaa in 2010.Charlie J. Underwood and Stephen L. Cumbaa (2010). "Chondrichthyans from a Cenomanian (Late Cretaceous) bonebed, Saskatchewan, Canada". Palaeontology 53 (4): 903–944. .

Species

* ''Cretorectolobus olsoni'' Case, 1978 * ''Cretorectolobus gracilis'' Underwood & Mitchell, 1999 * ''Cretorectolobus robustus'' Underwood & Cumbaa, 2010

Fossil distribution

Fossils of ''Cretorectolobus'' have been found in:''Cretorectolobus''
at

Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...

.org ;Hauterivian-Barremian *

Speeton Clay Formation The Speeton Clay Formation (SpC)Speeton Clay Formation
- Cedar Mountain Formation The Cedar Mountain Formation is the name given to a distinctive sedimentary geologic formation in eastern Utah, spanning most of the early and mid-Cretaceous. The formation was named for Cedar Mountain (Utah), Cedar Mountain in northern Emery Cou ...

, Utah * Kolbay, Kazakhstan ;Cenomanian * Saskatchewan, Canada ;Campanian *

Aguja Formation The Aguja Formation is a geological formation in North America, exposed in Texas, United States and Chihuahua and Coahuila in Mexico, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered ...

, Mexico *

Dinosaur Park Formation The Dinosaur Park Formation is the uppermost member of the Belly River Group (also known as the Judith River Group), a major geologic unit in southern Alberta. It was deposited during the Campanian stage of the Late Cretaceous, between about 7 ...

, Alberta *

Judith River Formation The Judith River Formation is a fossil-bearing geologic formation in Montana, and is part of the Montana Group. It dates to the Late Cretaceous, between 79 and 75.3 million years ago, corresponding to the "Judithian" land vertebrate age. It was ...

, Saskatchewan, Canada and Montana, United States *

Mesaverde Group History The Mesaverde Formation was first described by W.H.Holmes in 1877 during the Hayden Survey. Holmes described the formation in the northern San Juan Basin as consisting of three units, which were a "Lower Escarpment" consisting of 40 m ...

, Wyoming *

Åsen Åsen is a village in Levanger Municipality in Trøndelag county, Norway. The village is located between the lakes Hammervatnet and Hoklingen. The European route E06 highway and the Nordlandsbanen railway line both pass through the village. The ...

and Ignaberga, Sweden ;Maastrichtian * Kemp Clay Formation, Texas * Bakla Hill, Ukraine

References

Orectolobidae Prehistoric shark genera Early Cretaceous first appearances Hauterivian life Barremian life Albian life Cenomanian life Campanian life Maastrichtian life Late Cretaceous genus extinctions Cretaceous fish of Europe Cretaceous fish of North America Fossils of Canada Paleontology in Alberta Paleontology in Saskatchewan Fossils of England Fossils of Kazakhstan Fossils of Sweden Fossils of Ukraine Fossils of the United States Paleontology in Montana Paleontology in Texas Paleontology in Utah Paleontology in Wyoming Fossil taxa described in 1978 {{cretaceous-fish-stub