''Peronopsis'' (meaning "broach-like" or possibly "boot-like") is a
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 ...
of
trilobite
Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most succ ...
restricted to the
Middle Cambrian
Middle or The Middle may refer to:
* Centre (geometry), the point equally distant from the outer limits.
Places
* Middle (sheading), a subdivision of the Isle of Man
* Middle Bay (disambiguation)
* Middle Brook (disambiguation)
* Middle Creek (di ...
. Its remains have been found in
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
,
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
,
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
, and
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
.
Etymology
The subgenus ''Svenax'' is a contraction of Sven Axel, the given names of the paleontologist
Tullberg.
Taxonomy
Position of ''Peronopsis palmadon''
''Peronopsis palmadon'' is intermediate between Peronopsidae and
Condylopygidae, but it is not clear whether ''P. palmadon'' is ancestral to the Condylopigidae, a condylopigid exhibiting regression towards ancestral characters, or an example of parallel evolution.
Species previously assigned to ''Peronopsis''
* ''P. acadica''
= ''
Acadagnostus acadicus''
* ''P. bifidus'' = ''
Pseudoperonopsis bifidus''
* ''P. bonnerensis'' = ''
Pentagnostus (Meragostus) bonnerensis''
* ''P. brunfloensis'' = ''
Redeagnostus brunfloensis''
* ''P. bulkurensis'' = ''
Pentagnostus (Meragostus) bulkurensis''
* ''P. columbensis'' = ''
Pseudoperonopsis columbensis''
* ''P. comes''
Resser and Erdo, 1937 = ''
Ammagnostus laiwuensis''
* ''P. comis''
Öpik, 1979 = ''
Euagnostus comis''
* ''P. crassa'' = ''
Ammagnostus crassa''
* ''P. cylindrica'' = ''
Quadragnostus cylindrica''
* ''P. cylindrata'' = ''
Ammagnostus laiwuensis''
* ''P. ekip'' = ''
Ammagnostus laiwuensis''
* ''P. evansi'' = ''
Archaeagnostus evansi''
* ''P. fallax conica'' = ''
Quadragnostus conica''
* ''P. fallax depressa'' = ''
Quadragnostus depressa''
* ''P. fallax sinopsis'' = ''
Redeagnostus ferox sinopsis''
* ''P. fallax xiaoshiwanensis'' = indetermined
Agnostidae
Agnostidae is a family (biology), family of Agnostida trilobites. Like all Agnostina, they were eyeless and had only two thorax, thoracic segments. These trilobites inhabited benthic waters worldwide from 508 to 461 million years ago. The family i ...
* ''P. gaspensis'' = ''
Itagnostus gaspensis''
* ''P. grossus'' = ''
Ammagnostus laiwuensis''
* ''P. gullini'' = ''
Ammagnostus laiwuensis''
* ''P. huzhuensis'' = indetermined
Agnostidae
Agnostidae is a family (biology), family of Agnostida trilobites. Like all Agnostina, they were eyeless and had only two thorax, thoracic segments. These trilobites inhabited benthic waters worldwide from 508 to 461 million years ago. The family i ...
* ''P. interstricta'' = ''
Itagnostus interstrictus''
* ''P. jegorovae'' = ''
Ammagnostus jegorovae''
* ''P. lata'' = ''
Diplorrhina lata''
* ''P. marginalis'' = ''
Baltagnostus marginalis''
* ''P. maijangensis'' = ''
Archaeagnostus maijangensis''
* ''P. miqueli'' = ''
Baltagnostus miqueli''
* ''P. munda'' = ''
Trilobagnostus munda''
* ''P. quadrata sulcata'' = ''
Quadragnostus sulcata''
* ''P. quadratiformis'' = ''
Ammagnostus laiwuensis''
* ''P. recta'' = ''
Diplorrhina recta''
* ''P. roddyi'' = ''
Eoagnostus roddyi''
* ''P. rotundatus'' = ''
Quadragnostus rotundatus''
* ''P. segmenta'' = ''
Pentagnostus (Meragostus) segmenta''
* ''P. shandongensis'' = ''
Ammagnostus laiwuensis''
* ''P. taitzuhoensis'' = ''
Itagnostus gaspensis taitzuhoensis''
* ''P. tramitis'' = ''
Acadagnostus acadicus''
* ''P. ultima''
Poulsen, 1960 = ''
Clavagnostus ultima''
* ''P. ultimus''
Ergaliev, 1980 = ''
Pentagnostus (Meragostus) shabaktensis''
Species and distribution
Subgenus ''Peronopsis (Peronopsis)''
* ''P. integra''
(Beyrich, 1845) (Type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* ...
), synonyms ''Battus integer'' and ''Mesagnostus integer'', is known from the Middle Cambrian of the Czech Republic (''Hydrocephalus lyelli''-zone and ''Paradoxides gracilis''-zone, Jince Formation, Bohemia) and Sweden (''Paradoxides oelandicus''-zone,
Öland
Öland (, ; ; sometimes written ''Oland'' internationally) is the second-largest Swedish island and the smallest of the traditional provinces of Sweden. Öland has an area of and is located in the Baltic Sea just off the coast of Småland. ...
).
* ''P. amplaxis''
Robison, 1982 has been found in the Middle Cambrian of Central Asia and North America (''Triplagnostus gibbus''-zone, Nevada; House Range, Utah; Branche Cove, Newfoundland).
* ''P. batenica''
Bognibova, 1971 occurs in the Middle Cambrian of the Russian Federation (Eldakh Horizon, Eldakh Mountain, Betenev Range,
Altai).
* ''P. crassa''
Lermontova, 1940 is present in the Middle Cambrian of the Russian Federation (''Paradoxides forchhammeri''-zone, Orlinaya Mountains,
Kuznetsk Basin
The Kuznetsk Basin (, Кузбасс; often abbreviated as Kuzbass or Kuzbas) in southwestern Siberia, Russia, is one of the largest coal mining areas in Russia, covering an area of around . It lies in the Kuznetsk Depression between Tomsk and ...
).
* ''P. deons''
Jell and Webbers, 1992 has been collected in the Middle Cambrian of Antarctica (''Triplagnostus gibbus''-zone, Edson Hills,
Ellsworth Mountains
The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minneso ...
, West Antarctica).
* ''P. hypagnostiformis''
Bognibova, 1971 has been found in the Middle Cambrian of the Russian Federation (Mandybashskii Horizon, Shakhmatovo, East
Sayan).
* ''P. inarmata''
Hutchinson, 1962 occurs in the Middle Cambrian of Newfoundland, Canada (''Paradoxides bennetti''-zone,
Avalon Peninsula
The Avalon Peninsula () is a large peninsula that makes up the southeast portion of the island of Newfoundland in Canada. It is in size.
The peninsula is home to 270,348 people, about 52% of the province's population, according to the 2016 Ca ...
).
* ''P. montis''
Matthew, 1889 is known from the Middle Cambrian of the Russian Federation (''Kounamkites''-zone,
Daldyn river Basin, and Nekekit River; ''Ovatoryctocara''-zone,
Molodo River
The Molodo (, , ''Muolada'') is a river in Bulunsky District, Sakha Republic, Russia. It is a major left tributary of the Lena (river), Lena. The Molodo is long, and the area of its basin .
The banks of the Molodo are not inhabited. River sedime ...
, Olenik Uplift,
Yakutia
Sakha, officially the Republic of Sakha (Yakutia), is a republics of Russia, republic of Russia, and the largest federal subject of Russia by area. It is located in the Russian Far East, along the Arctic Ocean, with a population of one million ...
; ''Shistocephalus antiquus''-zone,
Lena River
The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob (river), Ob and Yenisey. The Lena River is long and has a capacious drainage basi ...
), and Canada (
Mount Stephen
Mount Stephen, , is a mountain located in the Kicking Horse River Valley of Yoho National Park, km east of Field, British Columbia, Field, British Columbia, Canada. The mountain was named in 1886 for George Stephen, 1st Baron Mount Stephen, Geo ...
, British Columbia; ''Bathyuriscus''-''Elrathina''-zone, Rocky Mountains).
* ''P. uzbekistanica''
Hajrullina, 1970 was excavated from the Middle Cambrian of Uzbekistan (''Elrathina poletaevae''-zone,
Amgaian, South
Tien Shan
The Tian Shan, also known as the Tengri Tagh or Tengir-Too, meaning the "Mountains of God/Heaven", is a large system of mountain ranges in Central Asia. The highest peak is Jengish Chokusu at high and located in Kyrgyzstan. Its lowest point is ...
).
Subgenus ''Peronopsis (Proacadagnostus)''
* ''P. normata''
(Whitehouse, 1936) (Type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* ...
) synonym ''Diplorrhina normata '' is recorded from the Middle Cambrian of the Russian Federation (''Ovatoryctocara''-zone, Molodo River, Olenek uplift, Western Yakutia, Eastern Siberia; ''Kounamkites''-zone, Nekekit River), Scandinavia (''Paradoxides oelandicus''-zone), England (terminal beds with ''Paradoxides'', Shropshire), Spain (''Accadoparadoxides muroensis''-zone; ''Eccaparadoxides sduyi''-zone, Valdemiedes Formation), China (''Crepicephalina''-zone, lower Fu-chou Series, Tchang-hsing-tou Island, Liaotung; Kiu-lung Group, Shan-tung), and Australia (''Dinesus''-stage, Templetonian River; ''Xystridura templetonensis''-zone, Elkedra, Northern Territory).
Subgenus ''Peronopsis (Svenax)''
* ''P. pusillus''
(Tulberg, 1880) (Type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* ...
) synonym ''Agnostus pusillus''
has been found in the Middle Cambrian of Australia (''Ptychagnostus punctuosus''-zone, Quita Formation, Northern Territories) and Sweden (''Ptychagnostus punctuosus''-zone,
Andrarum, Gislovshammar and Brantewick).
* ''P. egenus''
(Resser & Endo, 1937) is known from the Middle Cambrian of the Russian Federation (''Kounamkites''-zone, Daldyn River basin, Central Siberia; ''Tomagnostus fissus''-zone, Lena River; ''Pseuanocarina aojiformis''-zone, Buom-Pastach), China (Mapan Formation, Chi-chiachen-tzu, Manchoukuo; Duliujiang Formation, Zhalagou, Sandu, Guizhou), England (''Paradoxides hicksi''-zone, Abbey Shales,
Nuneaton
Nuneaton ( ) is a market town in Warwickshire, England, close to the county border with Leicestershire to the north-east.OS Explorer Map 232 : Nuneaton & Tamworth: (1:25 000) : Nuneaton's population at the 2021 United Kingdom census, 2021 censu ...
, Warwickshire) and Greenland (''Ptychagnostus atavus''-zone, Kap Stenton Formation).
* ''P. eoscutalis''
Hajrullina, 1970 occurs in the Middle Cambrian of Uzbekistan (''Elratina pletaevae''-zone, Amgaian, South Tien Shan).
* ''P. hartshillensis''
Kobayashi, 1939 has been deposited in the Middle Cambrian of England (''Paradoxides hicksi''-zone, Nuneaton, Warwickshire).
* ''P. lingula''
(Grönwall, 1902) synonym ''Svenax vafer'', is present in the Middle Cambrian of Australia (''Doryagnostus notalibre''-zone, V-creek Canyon, Northern Territories) and Greenland (''Ptychagnostus atavus''-zone, Henson Gletscher Formation).
* ''P. matthewi''
Hutchinson, 1962 has been found in the Middle Cambrian of England (''Paradoxides hicksi''-zone, Abbey Shales, Warwickshire) and Canada (''Paradoxides davidis''-zone, Avalon Peninsula, Newfoundland).
* ''P. scutalis''
Hicks, 1872 was recorded originally from the Menevia Formation (Porth-y-rhaw Group) of Rees ''et al''., (2014, p.72) in the eastern side of Porth-y-rhaw, SW Wales, which is therefore type locality for the species. Subspecies of ''scutalis'' include:
** ''Peronopsis scutalis scutalis'' Salter (Hicks, 1872, p.175, pl. 5 figs 11, 12
'non'' pl. 1, figs 9, 10, = ''Ptychagnostus punctuosus'' (Angelin); ''nec'' pl.5, figs, 13, 14, = ''P. scutalis'' (s.l.)from the ''Hypagnostus parvifrons'' Biozone and basal ''Pt. punctuosus'' Biozone of Porth-y-rhaw and from the ''parvifrons'' Biozone exposed behind the lifeboat house, Solva Harbour, St David's;
** ''Peronopsis scutalis tenuis'' (Illing, 1916) from the lower ''Tomagnostus fissus'' Biozone in the Abbey Shale Formation of Nuneaton, central England and the coeval lower Menevia Formation of Dwrhyd, Nine Wells, St David's;
** ''Peronopsis scutalis exarata'' (Grönwall, 1902, p. 77, pl. 1 fig 17), described originally from the Biozones of ''Hypagnostus parvifrons'' and ''Paradoxides davidis'' in Bornholm, and occurring also in the same Biozones at Porth-y-rhaw.
''P. scutalis'' s.l.
Salter, is recorded also from the Middle Cambrian of the Russian Federation (Mandybashskii horizon, Dolgii mys mountain, Betenev range; ''Tomagnostus fissus'' Zone, Lena River; ''Kounamkites'' Zone, Nekekit River, Khorbusuonka River, and Daldyno-Alakitshii District; ''Pseudanomocarina aojiformis'' zone, Hormustah District), Australia (''Triplagnostus gibbus'' Zone, Sandover Beds early, Northern Territories) ; Greenland (''Ptychagnostus atavus'' Zone, Henson Gletscher Formation; ''P. punctuosus'' Zone, Nyebö, North Greenland; ''Lejopyge laevigata'' Zone, Holm Dal Formation), Canada (''Ptychagnostus atavus'' Zone, Saint John Formation; ''Paradoxides abenacus'' Zone, Saint Martin; both New Brunswick; ''P. hicksi'' Zone, Deep Cove, Newfoundland), Sweden (''Ptychagnostus punctuosus'' Zone, Andrarum, Gislovshammar and Brantevik; ''Solenopleura ''s.l.'' brachymetopa'' Zone, Andrarum) and Italy (Gonnesa Formation, Sardinia). ''P. scutalis'' s.l. is also recorded from the Ford Beds, ''H. parvifrons'' Biozone, of Ford railway station, Pembrokeshire, SW Wales, described by Thomas & Jones (1912).
[ Thomas, H.H. & Jones, O.T. 1912. "On the Pre-Cambrian and Cambrian rocks of Brawdy, Hayscastle and Brimaston, Pembrokeshire." ''Quarterly Journal of the Geological Society'', London, 68, 374–401. ]
* ''P. spitiensis''
(Reed, 1910) has been collected from the Middle Cambrian of India (Parahio Horizon, Changnu, Himalayas).
Subgenus ''Peronopsis (Vulgagnostus)''
* ''P. longinqua''
Öpik, 1979 (Type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* ...
) has been excavated from the Middle Cambrian of Australia (''Templetonian''-zone, Sandover Bedsearly, Northern Territories)and the Russian Federation (lower ''Pseudanomocarina''-zone, Homustah District, Amga River; ''Kounamkites''-zone, Nekekit River).
* ''P. gedongensis''
Huang and Yuan, 1994 synonym ''P. pseudointerstrictus'' is recorded from the Middle Cambrian of China (Middle part of the Kaili Formation, Taijiang County, Guizhou), Sweden (Andrarum; ''Paradoxides oelandicus''-zone, Mossberga, Öland) and the Russian Federation (''Kounamkites''-zone, Lena River).
* ''P. prolixa''
(Öpik, 1979) occurs in the Middle Cambrian of Australia (''Triplagnostus gibbus''-zone, Sandover Bedsearly, Northern Territories).
* ''P. guoleensis''
Sun, 1989 is present in the Middle Cambrian of China (''Inouyops''-zone, Hsuchuang Formation, Guole, Inner Mongolia).
* ''P. taijiangensis''
is found in the Middle Cambrian of China (''Oryctocephalus indicus''-zone, Upper Kaili Formation, Taijiang County, Guizhou) and the Russian Federation (lower ''Pseudanomocarina''-zone, Homustah District, Amga River).
Unrevised species
These species may be assigned to one of the subgenera later or be reassigned to another genus.
* ''P. clarae''
Howell, 1925
* ''P. coreanus''
Kobayashi, 1935
* ''P. howelli''
Hutchinson, 1962
* ''P. magezhuangensis''
Zhang and Wang, 1985
* ''P. ovalis''
Zhou, 1982
* ''P. palmadon''
Kordule and Šnajdr, 1979
* ''P. rectangularis''
Howell, 1925
* ''P. sayramhuensis''
Zhang, 1981
* ''P. sinensis''
Yang and Liu
* ''P. triangula''
Lin and Zhang, 1979
* ''P. xichuanensis''
Yang
References
External links
''Peronopsis''in the
Paleobiology Database
The Paleobiology Database (PBDB) is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms.
History
The Paleobiology Database originated in the NCEAS-funded Phanerozoic Marine Pale ...
''Peronopsis''at the
Field Museum
The Field Museum of Natural History (FMNH), also known as The Field Museum, is a natural history museum in Chicago, Illinois, and is one of the largest such museums in the world. The museum is popular for the size and quality of its educationa ...
's Evolving Planet
{{Taxonbar, from=Q2493257
Peronopsidae
Agnostida genera
Cambrian trilobites
Cambrian animals of Asia
Trilobites of Asia
Trilobites of Europe
Trilobites of North America
Trilobites of Oceania
Fossils of Georgia (U.S. state)
Wheeler Shale
Paleozoic life of British Columbia
Paleozoic life of New Brunswick
Paleozoic life of Newfoundland and Labrador
Cambrian genus extinctions
Cambrian India