''Gecatogomphius'' is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

Middle Permian The Guadalupian is the second and middle series/epoch of the Permian. The Guadalupian was preceded by the Cisuralian and followed by the Lopingian. It is named after the Guadalupe Mountains of New Mexico and Texas, and dates between 272.95 ± 0. ...

captorhinid Captorhinidae is an extinct family of tetrapods, traditionally considered primitive reptiles, known from the late Carboniferous to the Late Permian. They had a cosmopolitan distribution across Pangea. Description Captorhinids are a clade of ...

with multiple tooth rows known from the

Kirov Oblast Kirov Oblast ( rus, Кировская область, p=ˈkʲirəfskəjə ˈobləsʲtʲ) is a federal subject of Russia (an oblast) located in Eastern Europe. Its administrative center is the city of Kirov. As of the 2010 census, the population ...

and the

Republic of Tatarstan Tatarstan, officially the Republic of Tatarstan, sometimes also called Tataria, is a Republics of Russia, republic of Russia located in Eastern Europe. It is a part of the Volga Federal District; and its capital city, capital and largest city i ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

Description

''Gecatogomphius'' is known from the

holotype A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ...

PIN A pin is a device, typically pointed, used for fastening objects or fabrics together. Pins can have the following sorts of body: *a shaft of a rigid inflexible material meant to be inserted in a slot, groove, or hole (as with pivots, hinges, an ...

1156/1, a three-dimensionally preserved nearly complete

lower jaw In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i ...

found on the bank of the

Vyatka River The Vyatka is a river in Kirov Oblast and Tatarstan in Russia. It is a right tributary of the Kama.maxilla In vertebrates, the maxilla (: maxillae ) is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxil ...

ry tooth plate from Berezovye Polyanki in Tatarstan. The preserved part of the jawbone fragment has a length of 80

millimeter 330px, Different lengths as in respect of the electromagnetic spectrum, measured by the metre and its derived scales. The microwave is between 1 metre to 1 millimetre. The millimetre (American and British English spelling differences#-re, -er, i ...

s and is posteriorly expanded to form a very broad shelf that bears five rows of bulbous teeth. ''Gecatogomphius'' is part of the

biostratigraphic Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.Hine, Robert. "Biostratigraphy." ''Oxford Reference: Dictionary of Biology ...

Ocher Assemblage which is characteristic for sediments of the East European

Platform Platform may refer to: Arts * Platform, an arts centre at The Bridge, Easterhouse, Glasgow * ''Platform'' (1993 film), a 1993 Bollywood action film * ''Platform'' (2000 film), a 2000 film by Jia Zhangke * '' The Platform'' (2019 film) * Pla ...

with an uppermost Lower Permian (Upper

Kungurian In the geologic timescale, the Kungurian is an age or stage of the Permian. It is the latest or upper of four subdivisions of the Cisuralian Epoch or Series. The Kungurian lasted between and million years ago (Ma). It was preceded by the Arti ...

) and lower Middle Permian (

Roadian In the geologic timescale, the Roadian is an age or stage of the Permian. It is the earliest or lower of three subdivisions of the Guadalupian Epoch or Series. The Roadian lasted between and million years ago (Ma). It was preceded by the Kun ...

) age.

Etymology

''Gecatogomphius'' was first named by B. P. Vjushkov and Pjotr K. Chudinov in

1957 Events January * January 1 – The Saarland joins West Germany. * January 3 – Hamilton Watch Company introduces the first electric watch. * January 5 – South African player Russell Endean becomes the first batsman to be Dismissal (cricke ...

and the

type species In International_Code_of_Zoological_Nomenclature, 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 spe ...

is ''Gecatogomphius kavejevi''. The generic name is derived from ''hecato'',

Greek Greek may refer to: 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 of all kno ...

for "hundred", and ''gomphos'', Greek for "peg", "nail" or "wedge", referring to the large number of teeth in the jaw. The

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

''kavejevi'' is in honour of the finder of the type specimen, the

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

geologist Mazit S. Kaveev.

References

{{Taxonbar, from=Q5529595 Captorhinidae Cisuralian tetrapods of Europe Guadalupian tetrapods of Europe Permian Russia Extinct animals of Russia Fossil taxa described in 1957