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Agnostidae
Taxonomy
Agnostidae was named by M'Coy (1849). Its type is Agnostinae.
It was assigned to Agnostacea by Henningsmoen (1952); to Agnostina by Harrington and Leanza (1957); to Agnostoidea by Westrop et al. (1996); to Agnostida by Whittington et al. (1997) and Hong et al. (2003); and to Condylopygoidea by Naimark and Pegel (2017).
It was assigned to Agnostacea by Henningsmoen (1952); to Agnostina by Harrington and Leanza (1957); to Agnostoidea by Westrop et al. (1996); to Agnostida by Whittington et al. (1997) and Hong et al. (2003); and to Condylopygoidea by Naimark and Pegel (2017).
Subtaxa
Acmarhachis (syn. Cyclagnostus), Agnostinae (type subfamily), Agnostus (syn. Acutatagnostus, Battus), Aistagnostus, Barrandagnostus (syn. Hozediasagnostus), Biciragnostus, Connagnostus, Eurudagnostus, Formosagnostus, Gymnagnostus, Hadragnostus (syn. Kunshanagnostus), Homagnostus, Idolagnostus, Ivshinagnostus, Kormagnostella (syn. Litagnostoides), Kormagnostus, Kymagnostus, Lotagnostus, Micragnostus, Neoagnostus (syn. Pseudorhaptagnostus, Calagnostus, Hyperagnostus), Oncagnostus, Oxyagnostus, Peronopsinae, Ptychagnostinae, Quadrahomagnostus, Semagnostus, Strictagnostus, Trilobagnostus
Synonymy list
| Year | Name and author |
|---|---|
| 1849 | Agnostidae M'Coy |
| 1952 | Agnostidae Henningsmoen |
| 1957 | Agnostidae Harrington and Leanza |
| 1996 | Agnostidae Westrop et al. p. 812 |
| 1997 | Agnostidae Whittington et al. p. 339 |
| 2003 | Agnostidae Hong et al. |
| 2017 | Agnostidae Naimark and Pegel p. 1212 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Agnostidae M'Coy 1849
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G. †Acmarhachis Resser 1938
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†Acmarhachis acuta Kobayashi 1938
†Acmarhachis apicula Oepik 1967
†Acmarhachis hybrida Shergold 1980
†Acmarhachis karatauensis Ergaliev 1980
†Acmarhachis kindlei Westrop and Eoff 2012
†Acmarhachis longispinus Ergaliev 1980
†Acmarhachis punctatus Ergaliev 1980
†Acmarhachis typicalis Resser 1938
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Invalid names: Cyclagnostus yaogongbuensis Lu and Lin 1987 [synonym]
†Acmarhachis whittingtoni Westrop and Eoff 2012
Invalid names: Cyclagnostus Lermontova 1940 [synonym]
Subfm. †Agnostinae Jaekel 1909
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G. †Innitagnostus Opik 1967
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†Innitagnostus inexpectans Kobayashi 1938
†Innitagnostus innitens Opik 1967
†Innitagnostus medius Shergold 1980
G. †Agnostus Brongniart 1822
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Subg. †Agnostus (Agnostus) Wahlenberg 1818
Subg. †Agnostus (Homagnostus) Howell 1935
†Agnostus artilimbatus Opik 1967
†Agnostus babcocki Peng and Robison 2000
†Agnostus bibullatus Barrande 1852
†Agnostus bidens Meek 1873
†Agnostus gladiator Clark 1923
†Agnostus innocens Clark 1923
†Agnostus interstricta White 1874
†Agnostus neglectus Westergard 1946
†Agnostus neon Hall and Whitfield 1877
†Agnostus nudus Beyrich 1845
†Agnostus orion Billings 1860
†Agnostus pisiformis Wahlenberg 1818
†Agnostus princeps Salter 1864
†Agnostus rex Barrande 1852
†Agnostus tardus Barrande 1846
†Agnostus valentinus Lochman 1944
Invalid names: Acutatagnostus Ergaliev 1980 [synonym], Battus Dalman 1927 [objective synonym]
G. †Aistagnostus Xiang and Zhang 1985
G. †Barrandagnostus Ishvin 1960
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†Barrandagnostus barrandei Ivshin 1960
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Invalid names: Barrandagnostus tchatertensis Krys'kov 1963 [synonym]
Invalid names: Hozediasagnostus Ergaliev and Ergaliev 2008 [synonym]
G. †Connagnostus Opik 1967
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†Connagnostus aversus Shergold 1980
†Connagnostus fritzi Pratt 1992
†Connagnostus junior Shergold 1971
†Connagnostus longirhachis Ergaliev and Ergaliev 2008
†Connagnostus tangshanensis Zhu and Wittke 1989
†Connagnostus venerabilis Opik 1967
G. †Eurudagnostus Lermontova 1951
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†Eurudagnostus conicus Ergaliev and Ergaliev 2008
†Eurudagnostus grandis Naimark and Pegel 2017
†Eurudagnostus hisakoshii Kobayashi 1962
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Invalid names: Eurudagnostus ovalis Ergaliev and Ergaliev 2008 [synonym]
†Eurudagnostus kazachstanicus Ergaliev 1980
†Eurudagnostus minor Ergaliev 1980
†Eurudagnostus ovaliformis Ergaliev 1980
G. †Formosagnostus Ergaliev 1980
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†Formosagnostus convexus Chu 1959
†Formosagnostus formosus Ergaliev 1980
†Formosagnostus zhanatasicus Ergaliev and Ergaliev 2008
G. †Gymnagnostus Robison and Pantoja-Alor 1968
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†Gymnagnostus congros Robison and Pantoja-Alor 1968
†Gymnagnostus kobayashii Tortello and Esteban 2016
†Gymnagnostus mexicanus Robison and Pantoja-Alor 1968
†Gymnagnostus perinflatus Harrington and Leanza 1957
G. †Hadragnostus Opik 1967
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†Hadragnostus modestus Lochman 1944
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Invalid names: Formosagnostus latus Peng 1987 [synonym], Kunshanagnostus kunshanensis Qian and Zhou 1984 [synonym]
†Hadragnostus quadratiformis Ergaliev and Ergaliev 2008
Invalid names: Kunshanagnostus Qian and Zhou 1984 [synonym]
G. †Homagnostus Howell 1935
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†Homagnostus alaskensis Palmer 1968
†Homagnostus captiosus Lazarenko 1966
†Homagnostus claviformis Ergaliev 1980
†Homagnostus comptus Palmer 1962
†Homagnostus hoi Sun 1924
†Homagnostus hoiformis Kobayashi 1933
†Homagnostus longiformis Ergaliev 1980
†Homagnostus obesus Belt 1867
†Homagnostus piriformis Ergaliev and Ergaliev 2008
†Homagnostus seletensis Ivshin 1962
†Homagnostus sulcatus Choi et al. 2004
†Homagnostus zhuangliensis Qian 1985
G. †Ivshinagnostus Ergaliev 1980
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†Ivshinagnostus alatus Choi et al. 2004
†Ivshinagnostus hunanensis Peng 1992
†Ivshinagnostus ivshini Ergaliev 1980
†Ivshinagnostus quadratus Choi et al. 2004
G. †Kormagnostella Romanenko 1967
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†Kormagnostella carinata Ergaliev and Ergaliev 2008
†Kormagnostella insolita Westrop and Adrain 2013
†Kormagnostella longa Ergaliev 1980
Invalid names: Litagnostoides Schrank 1975 [synonym]
G. †Kormagnostus Resser 1938
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†Kormagnostus boltoni Westrop et al. 1996
†Kormagnostus clavatus Lu and Lin 1989
†Kormagnostus copelandi Westrop et al. 1996
†Kormagnostus cuchillensis Rusconi 1954
†Kormagnostus inventus Shergold 1982
†Kormagnostus minutus Schrank 1975
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Invalid names: Kormagnostus taoyuanensis Peng 1987 [synonym], Litagnostus latilimbatus Qian and Zhou 1984 [synonym]
G. †Lotagnostus Whitehouse 1936
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Subg. †Lotagnostus (Distagnostus) Shergold 1971
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†Lotagnostus (Distagnostus) celatus Peng 1992
†Lotagnostus (Distagnostus) ergodes Shergold 1971
Subg. †Lotagnostus (Eolotagnostus) Zhou 1982
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†Lotagnostus (Eolotagnostus) cristus Ergaliev and Ergaliev 2008
†Lotagnostus (Eolotagnostus) decorus Peng 1992
†Lotagnostus (Eolotagnostus) pseudohedini Ergaliev and Ergaliev 2008
†Lotagnostus (Eolotagnostus) scrobicularis Ergaliev 1980
†Lotagnostus (Lotagnostus) trisectus Salter 1864
†Lotagnostus agnostiformis Apollonov and Tschugaeva 1983
†Lotagnostus americanus Billings 1860
†Lotagnostus asiaticus Troedsson 1937
†Lotagnostus atenuatus Rusconi 1955
†Lotagnostus extremus Ergaliev and Ergaliev 2008
†Lotagnostus hedini Troedsson 1937
†Lotagnostus obscurus Palmer 1955
†Lotagnostus punctatus Lu 1964
G. †Micragnostus Howell 1935
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†Geragnostus (Micragnostus) acrolebes Shergold 1971
†Geragnostus (Micragnostus) bilobus Qiu 1984
†Geragnostus (Micragnostus) chengcunensis Qiu 1984
†Micragnostus brevispinus Lermontova 1951
†Micragnostus calviformis Harrington and Leanza 1957
†Micragnostus calvus Lake 1906
†Micragnostus chiushuensis Kobayashi 1931
†Micragnostus curvata Robison and Pantoja-Alor 1968
†Micragnostus elongatus Chien 1961
†Micragnostus insolitus Grant 1965
†Micragnostus mutabilis Ergaliev 1980
†Micragnostus orientalis Lu and Lin 1980
†Micragnostus pehuenchensis Rusconi 1953
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Invalid names: Micragnostus intermedius Palmer 1968 [synonym]
†Micragnostus quadratiformis Ergaliev and Ergaliev 2008
†Micragnostus serus Fortey 1980
†Micragnostus strictus Sun 1989
†Micragnostus vilonii Harrington and Leanza 1957
G. †Neoagnostus Kobayashi 1955
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†Neoagnostus acutifrons Troedsson 1937
†Neoagnostus aspidoides Kobayashi 1955
†Neoagnostus bilobus Shaw 1951
†Neoagnostus bituberculatus Ivshin 1960
†Neoagnostus clavus Shergold 1971
†Neoagnostus cornuformis Ergaliev and Ergaliev 2008
†Neoagnostus denticulatus Shergold 1975
†Neoagnostus dilatus Hohensee and Stitt 1989
†Neoagnostus felix Shergold 1980
†Neoagnostus fengzuensis Lu and Lin 1984
†Neoagnostus greeni Shergold 1980
†Neoagnostus kyrshabactensis Ergaliev and Ergaliev 2008
†Neoagnostus longicollis Kobayashi 1966
†Neoagnostus occultatus Xiang and Zhang 1985
†Neoagnostus ovalis Ludvigsen et al. 1989
†Neoagnostus pseudoclavus Ergaliev and Ergaliev 2008
†Neoagnostus quadratiformis Ergaliev 1980
†Neoagnostus quasibilobus Shergold 1975
†Neoagnostus sabulosus Peng 1992
†Neoagnostus shiziluensis Lu and Zhou 1990
†Neoagnostus tenuispinus Ergaliev and Ergaliev 2008
†Neoagnostus tumidus Sun 1989
Invalid names: Hyperagnostus Kobayashi 1955 [synonym], Pseudorhaptagnostus Lermontova 1940 [synonym]
G. †Oxyagnostus Opik 1967
G. †Quadrahomagnostus Chu 1959
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†Quadrahomagnostus subquadratus Chu 1959
†Quadrahomagnostus tienshihfuensis Chu 1959
G. †Trilobagnostus Harrington 1938
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†Trilobagnostus convexus Ergaliev and Ergaliev 2008
†Trilobagnostus innitialis Ergaliev and Ergaliev 2008
†Trilobagnostus kazachstanicus Ergaliev and Ergaliev 2008
†Trilobagnostus mundus Raymond 1925
†Trilobagnostus pseudorudis Ergaliev and Ergaliev 2008
†Trilobagnostus rudis Salter 1864
†Trilobagnostus spinosus Ergaliev and Ergaliev 2008
Invalid names: Peronopsinae Westergard 1936 [empty], Ptychagnostinae Kobayashi 1939 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Collections (872 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | Norway (Hamar) | Agnostus pisiformis (194046) | |
| Cambrian | Norway (Sandsvær ) | Agnostus obesus (194055 194056) | |
| Cambrian | Norway (Brevik-Skien) | Agnostus pisiformis (194036) | |
| Cambrian | Norway (Østerdalen) | Agnostus obesus (194090) Agnostus pisiformis (194052) | |
| Cambrian | Norway (Ringerike) | Agnostus obesus (194062) Agnostus pisiformis (194043 194044) | |
| Cambrian | Norway | Agnostus obesus (194054 194057) Agnostus pisiformis (194038) | |
| Cambrian | Norway (Oslo-Asker) | Agnostus obesus (194060 194061) Agnostus pisiformis (194042) | |
| Cambrian | Russian Federation (kaliningrad oblast) | Homagnostus sp. (235432) | |
| Cambrian | Norway (Hedmark) | Agnostus pisiformis (194045) | |
| Cambrian | Norway (Eiker-Sandsvær ) | Agnostus pisiformis (194037) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Tremadocian | Argentina (Salta) | Gymnagnostus kobayashii (208300 208303) | |
| Tremadocian | Argentina | Gymnagnostus kobayashii (208287 208291 208293) Micragnostus chiushuensis (156001) | |
| Tremadocian | Canada (Newfoundland and Labrador) | Agnostidae indet. (105863) Micragnostus intermedius, Lotagnostus hedini, Lotagnostus americanus (81289) Neoagnostus aspidoides (105854 105867) | |
| Tremadocian | United Kingdom | Agnostus calvus (208218 208223 208225) | |
| Lancefieldian | Australia (Victoria) | Micragnostus hoeki, Neoagnostus eckardti (165725) | |
| Tulean - Blackhillsian | USA (Nevada) | Agnostus sp. (77186) | |
| Arenigian | France (Alsace) | Micragnostus languedocensis (64526) | |
| Arenig | Argentina | Micragnostus sp. (8872 8878) | |
| Arenig | Norway (Spitsbergen) | Micragnostus sp. (76646) | |
| Billingen | Norway (Spitsbergen) | Micragnostus serus (106473) | |