| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Leiostegiidae
Taxonomy
Leiostegiidae was named by Bradley (1925).
It was assigned to Leiostegiacea by Harrington and Leanza (1957); to Agnostida by Robison and Pantoja-Alor (1968); to Trilobita by Peng (1990); to Leiostegiina by Adrain (2011); to Leiostegioidea by Westrop (2013); and to Corynexochida by Whittington et al. (1997) and Fortey and Bruton (2013).
It was assigned to Leiostegiacea by Harrington and Leanza (1957); to Agnostida by Robison and Pantoja-Alor (1968); to Trilobita by Peng (1990); to Leiostegiina by Adrain (2011); to Leiostegioidea by Westrop (2013); and to Corynexochida by Whittington et al. (1997) and Fortey and Bruton (2013).
Subtaxa
Aedotes, Agerina (syn. Hexianella, Plesiyuepingia), Annamitella (syn. Bathyuriscops, Proetiella, Endoaspis, Wutingia, Monella), Arcifimbria, Brackebuschia (syn. Bodenbenderia), Chiawangella, Cholopilus, Chosenia, Chuangiella, Chuangioides, Chuangiopsis, Eochuangia, Geminiclavula, Iranaspis, Kepisis, Leiostegium (syn. Alloleiostegium), Linguchuangia, Lloydia, Meropalla, Pagodiidae, Pagodiinae, Plethopeltella, Prochuangia, Pseudocalymene (syn. Paraszechuanella, Eucalymene, Szechuanella), Reubenella, Schantungia (syn. Chuangia, Parachuangia), Tinaspis, Trephina, Wanshania
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Leiostegiidae Bradley |
| 1935 | Pagodiidae Kobayashi |
| 1957 | Leiostegiidae Harrington and Leanza |
| 1968 | Leiostegiidae Robison and Pantoja-Alor p. 784 |
| 1990 | Leiostegiidae Peng p. 16 |
| 1997 | Leiostegiidae Whittington et al. p. 298 |
| 1997 | Pagodiidae Whittington et al. p. 299 |
| 2011 | Leiostegiidae Adrain p. 105 |
| 2013 | Leiostegiidae Fortey and Bruton |
| 2013 | Leiostegiidae Westrop p. 82 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Leiostegiidae Bradley 1925
show all | hide all
G. †Aedotes Opik 1967
G. †Agerina Tjernvik 1956
+
†Agerina acutilimbata Ghobadi Pour et al. 2011
†Agerina clymene Mergl 2006
†Agerina elongata Lu 1975
†Agerina erratica Tjernvik 1956
†Agerina ferrigena Ruzicka 1926
†Agerina parva Xiang and Zhou 1987
†Agerina quadrata Dean 1966
Invalid names: Hexianella Zhang 1983 [synonym], Plesiyuepingia Xiang and Zhou 1987 [synonym]
G. †Annamitella Mansuy 1920
+
†Annamitella borealis Neuman 1964
†Annamitella brachyops Fortey and Shergold 1984
†Annamitella granulatus Weber 1948
†Annamitella guizhouensis Yin 1978
†Annamitella hexianensis Zhang 1983
†Annamitella insulana Dean 1973
†Annamitella kantsingensis Chang and Fan 1960
†Annamitella parva Hsu 1948
†Annamitella perplexa Bates 1968
†Annamitella rectangulosa Endo 1935
†Annamitella strigifrons Fortey and Shergold 1984
†Annamitella tellecheai Rusconi 1951
†Annamitella yichangensis Xiang and Zhou 1983
Invalid names: Bathyuriscops Keller and Lisogor 1954 [synonym], Endoaspis Lochman 1956 [synonym], Monella Bates 1968 [synonym]
G. †Arcifimbria Rasetti 1963
G. †Brackebuschia Harrington and Leanza 1957
+
†Brackebuschia acheila Harrington and Leanza 1957
Invalid names: Bodenbenderia Harrington and Leanza 1957 [synonym]
G. †Chiawangella Chu 1959
+
†Chiawangella hunanensis Peng et al. 2004
†Chiawangella pacifica Walcott 1911
†Chiawangella pustulosa Chu 1959
G. †Cholopilus Raymond 1924
G. †Chuangiella Kobayashi 1935
+
†Chuangiella elongata Kobayashi 1935
†Chuangiella shengwanensis Yang et al. 1993
†Chuangiella sichuanica Kuo 1965
G. †Chuangioides Chu 1959
+
†Chuangioides punctatus Chu 1959
†Chuangioides subaiyingouensis Zhang 1985
G. †Chuangiopsis Kobayashi 1955
G. †Iranaspis King 1937
G. †Kepisis Hu 1971
G. †Leiostegium Raymond 1913
+
Subg. †Leiostegium (Euleiostegium) Zhou and Zhan 1978
+
†Leiostegium (Euleiostegium) latilimbatum Zhou and Zhang 1978
†Leiostegium goodwinensis Ross 1970
†Leiostegium manitouensis Walcott 1925
†Leiostegium proprium Boyce 1989
†Leiostegium quadratus Billings 1860
†Leiostegium spongiosum Fortey and Bruton 2013
†Leiostegium tyboensis Ross 1970
Invalid names: Alloleiostegium Zhou and Zhang 1978 [synonym]
G. †Linguchuangia Zhang 1983
Subfm. †Pagodiinae Kobayashi 1935
+
G. †Prochuangia Kobayashi 1935
+
†Prochuangia glabella Shergold 1980
†Prochuangia granulosa Lu 1956
†Prochuangia leiocephala Peng et al. 1999
†Prochuangia licinispinata Peng 1992
†Prochuangia longispina Lu and Zhu 1980
†Prochuangia turcica Dean 2006
G. †Pseudocalymene Pillet 1974
+
†Pseudocalymene quadrata Lu 1975
†Pseudocalymene transversa Lu 1975
Invalid names: Eucalymene Lu 1975 [synonym], Paraszechuanella Liu 1977 [synonym], Szechuanella Lu 1962 [synonym]
G. †Wanshania Rong and Yang 1977
+
†Wanshania stenos Yang et al. 1993
†Wanshania wanshanensis Rong and Yang 1977
Invalid names: Pagodiidae Kobayashi 1935 [invalid subgroup]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009 | |||||
Age range: base of the Taoyuanian to the top of the Caradoc or 498.50000 to 449.50000 Ma
Collections (396 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | China (Jilin Provence) | Leiostegium floodi (156930) | |
| Wangcunian | China (Hunan) | Geminiclavula wangcunica (49274) | |
| Mayan - Merioneth | Iran (Semnan) | Chuangia sp., Prochuangia sp. (22823) | |
| Guzhangian | China (Liaoning) | Chiawangella pacifica (129879) | |
| Guzhangian | China (Jiangsu) | Chiawangella pustulosa (129925) | |
| Guzhangian | China (Guizhou) | Meropalla bella (125072) | |
| Guzhangian | China (Nei Mongol) | Chuangioides subaiyingouensis (129775 130254) | |
| Guzhangian | Turkey | Chuangia sp. (133716) | |
| Guzhangian | China (Henan) | Wanshania stenos (127077) | |
| Guzhangian | China (Shanxi) | Chuangioides punctatus (129927) | |
Youngest occurrences |
|||
| Time interval | Ma | Country or state | PBDB collection number |
| Llanvirn | Canada (Newfoundland and Labrador) | Lloydia sp. (78097) | |
| Llanvirn | Argentina (La Rioja) | Proetiella tellecheai (116146) | |
| Llanvirn | China (Gansu) | Bathyuriscops sp. (23594) | |
| Llanvirn | China (Xinjiang) | Pseudocalymene quadrata (170841 170842) | |
| Llanvirn | Argentina (San Juan) | Proetiella tellecheai (116109 116110 116113) | |
| Darriwilian | Argentina (San Juan) | Proetiella tellecheai (116105 116106 116108 116111 116114 116115) | |
| Darriwilian | China (Sichuan) | Pseudocalymene sp. (64235) | |
| Llandeilo | China (Guizhou) | Annamitella sp. (188421 188422 188425) | |
| Llandeilo - Caradoc | Canada (Northwest Territories) | Agerina norrisi (316) | |
| Katian | Kazakhstan | Agerina acutilimbata (162197 162198) | |