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Dikelocephaloidea

Artiopoda - Asaphida

Taxonomy
Dikelocephalacea was named by Miller (1889).

It was corrected as Dikelocephaloidea by Bell (2012).

It was assigned to Asaphida by Hughes (1994) and Bell (2012).

Synonymy list
YearName and author
1889Dikelocephalacea Miller p. 718
1994Dikelocephalacea Hughes
2012Dikelocephaloidea Bell

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyDikelocephaloidea(Miller 1889)
superfamilyDikelocephaloidea(Miller 1889)

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.

Superfm. †Dikelocephaloidea Miller 1889
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Fm. †Dikelocephalidae Miller 1889
+
G. †Berkeia Resser 1937
+
†Berkeia glabellamersa Wilson 1949
†Berkeia typica Resser 1937
G. †Blandicephalus Palmer 1954
+
†Blandicephalus texanus Palmer 1954
G. †Briscoia Walcott 1924
+
†Briscoia angustilimba Westrop 1986
†Briscoia coloradoensis Walcott 1914
†Briscoia dalyi Walcott 1914
†Briscoia devinei Billings 1865
†Briscoia elegans Kobayashi 1935
+
Invalid names: Parabriscoia stenorachis Kobayashi 1935 [synonym]
†Briscoia llanoensis Winston and Nicholls 1967
†Briscoia nevadensis Resser 1937
†Briscoia pertransversa Lochman 1956
†Briscoia schucherti Ulrich and Resser 1930
†Briscoia septentrionalis Kobayashi 1935
+
Invalid names: Briscoia mertiei Kobayashi 1935 [synonym], Briscoia robusta Kobayashi 1935 [synonym]
†Briscoia sinclairensis Walcott 1924
Invalid names: Parabriscoia Kobayashi 1935 [synonym]
G. †Dikelocephalus Owen 1852
+
†Dicellocephalus bilobatus Hall and Whitfield 1877
†Dicellocephalus iole Walcott 1884
†Dicellocephalus marica Walcott 1884
†Dicellocephalus tribulus Walcott 1912
†Dikelocephalus halli Ulrich and Resser 1930
+
Invalid names: Dikelocephalus barretti Ulrich and Resser 1930 [synonym], Dikelocephalus beani Ulrich and Resser 1930 [synonym], Dikelocephalus brevis Ulrich and Resser 1930 [synonym], Dikelocephalus declivis Ulrich and Resser 1930 [synonym], Dikelocephalus edwardsi Ulrich and Resser 1930 [synonym], Dikelocephalus gracilis Ulrich and Resser 1930 [synonym], Dikelocephalus granosus Ulrich and Resser 1930 [synonym], Dikelocephalus hotchkissi Ulrich and Resser 1930 [synonym], Dikelocephalus inaequalis Ulrich and Resser 1930 [synonym], Dikelocephalus intermidius Ulrich and Resser 1930 [synonym], Dikelocephalus juvinalis Ulrich and Resser 1930 [synonym], Dikelocephalus marginatus Ulrich and Resser 1930 [synonym], Dikelocephalus norwalkensis Ulrich and Resser 1930 [synonym], Dikelocephalus orbiculatus Ulrich and Resser 1930 [synonym], Dikelocephalus ovatus Ulrich and Resser 1930 [synonym], Dikelocephalus oweni Ulrich and Resser 1930 [synonym], Dikelocephalus postrectus Ulrich and Resser 1930 [synonym], Dikelocephalus raaschi Ulrich and Resser 1930 [synonym], Dikelocephalus regalis Ulrich and Resser 1940 [synonym], Dikelocephalus retrorsus Ulrich and Resser 1930 [synonym], Dikelocephalus subplanus Ulrich and Resser 1930 [synonym], Dikelocephalus thwaitesi Ulrich and Resser 1930 [synonym], Dikelocephalus weidmani Ulrich and Resser 1930 [synonym], Dikelocephalus wiltonensis Ulrich and Resser 1930 [synonym], Dikelocephalus wisconsinensis Ulrich and Resser 1930 [synonym], Ogygia minnesotensis Chapman 1856 [synonym]
†Dikelocephalus wisconensis Ulrich and Resser 1930
G. †Elkia Walcott 1924
+
†Elkia nasuta Walcott 1884
G. †Monocheilus Resser 1937
+
†Monocheilus anatinum Hall 1863
†Monocheilus micros Walter 1926
G. †Neoiranella Özdikmen 2006
+
†Neoiranella latefrons King 1937
Invalid names: Iranella Hupe 1953 [replaced]
G. †Osceolia Walcott 1914
G. †Princetonella Lochman 1953
G. †Pterocephalops Rasetti 1944
+
G. †Randicephalus Ivshin 1962
G. †Stigmacephalus Resser 1937
+
†Stigmacephalus oweni Hall 1863
G. †Walcottaspis Ulrich and Resser 1930
+
†Walcottaspis vanhornei Walcott 1914
Invalid names: Saukiidae Ulrich and Resser 1930 [synonym]
Fm. †Ptychaspididae Raymond 1924
+
G. †Alborsella Kushan 1973
G. †Changia Sun 1924
+
†Changia chinensis Sun 1924
Invalid names: Coreanocephalus Kobayashi 1935 [synonym], Quadraticephalus Sun 1925 [synonym]
G. †Eoptychaspis Nelson 1951
G. †Eowuhuia Zhang and Wang 1984
G. †Euptychaspis Ulrich 1931
+
†Euptychaspis dougali Adrain and Westrop 2004
†Euptychaspis jugalis Winston and Nicholls 1967
†Euptychaspis kirki Kobayashi 1935
†Euptychaspis lawsonensis Adrain and Westrop 2005
†Euptychaspis typicalis Ulrich et al. 1931
G. †Idiomesus Raymond 1924
+
†Idiomesus intermedius Rasetti 1959
†Idiomesus levisensis Rasetti 1944
G. †Imlerella Loch and Taylor 2004
G. †Kathleenella Ludvigsen 1982
+
†Kathleenella frontalis Longacre 1970
G. †Keithia Raymond 1924
+
†Keithia similis Rasetti 1944
†Keithia subclavatus Billings 1860
G. †Keithiella Rasetti 1944
+
†Keithiella brevis Rasetti 1944
†Keithiella cylindrica Billings 1860
†Keithiella depressa Rasetti 1944
†Keithiella intermedia Westrop 1986
†Keithiella patula Winston and Nicholls 1967
†Keithiella scrupulosa Bell and Ellinwood 1962
G. †Macronoda Lochmann 1964
+
†Macronoda notchpeakensis Adrain and Westrop 2005
†Macronoda punctata Loch et al. 1993
Invalid names: Promesus Lochman 1964 [synonym]
G. †Plectrella Ludvigsen and Westrop 1989
G. †Proricephalus Westrop 1986
G. †Ptychaspis Hall 1863
+
†Ptychaspis granulosa Owen 1852
†Ptychaspis minuta Whitfield 1878
†Ptychaspis pustulosa Hall and Whitfield 1877
†Ptychaspis tuberosa Feniak 1952
Invalid names: Asioptychaspis Kobayashi 1933 [synonym]
G. †Saukioides Kobayashi 1952
+
Invalid names: Jeholaspis Kobayashi 1953 [objective synonym]
G. †Sunwaptia Westrop 1986
+
†Sunwaptia plutoi Adrain and Westrop 2004
G. †Wilcoxaspis Westrop 1986
Invalid names: Dikelocephaliidae Miller 1889 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: carnivorec
Created: 2009-10-11 08:22:09
Modified: 2020-06-15 15:27:39
Source: o = order, c = class
References: Hendy et al. 2009, Aberhan et al. 2004

Age range: base of the Taoyuanian to the top of the Mansian or 495.20000 to 485.00000 Ma

Collections (342 total)


Time interval Ma Country or state Original ID and collection number
Cambrian538.8 - 486.85USA (Wisconsin) Monocheilus sp., Ptychaspis sp. (250)
Cambrian538.8 - 486.85USA (Montana) Dikelocephalus sp., Monocheilus sp., Saukia sp., Macronoda sp., Promesus sp. (258)
Cambrian538.8 - 486.85USA (New York) Dikelocephalus sp., Keithiella sp., Prosaukia sp. (254)
Middle Cambrian - Late/Upper Cambrian506.5 - 486.85USA (Alaska) Briscoia sp. (114982)
Paibian497.0 - 494.2USA (Alaska) Briscoia septentrionalis (233750) Briscoia septentrionalis, Briscoia elegans (233751)
Paibian497.0 - 494.2USA (Texas) Blandicephalus texanus (208989)
Steptoean497.0 - 493.5USA (Vermont) Pterocephalops tuberculineata (8977)
Steptoean497.0 - 493.5USA (Minnesota) Berkeia typica (156300)
Steptoean497.0 - 493.5USA (Pennsylvania) Imlerella praecipita (62082)
Dresbachian497.0 - 486.85USA (Virginia) Pterocephalops acrophthalma (62204 62205)
Franconian497.0 - 486.85USA (Minnesota) Dikelocephalus freeburgensis (235396 235397) Prosaukia ambigua, Monocheilus anatinum, Monocheilus micros (62113) Ptychaspis granulosa (62106 62109) Ptychaspis granulosa, Monocheilus anatinum (62100 62101 62102 62103) Ptychaspis granulosa, Monocheilus anatinum, Monocheilus micros (62099 62104) Ptychaspis miniscaensis (62112 62124) Ptychaspis miniscaensis, Prosaukia misa (62114 62116 62121 62123) Ptychaspis striata (62111) Ptychaspis striata, Ptychaspis granulosa, Monocheilus anatinum, Monocheilus micros, Ptychaspis tuberosa (62107) Ptychaspis striata, Ptychaspis granulosa, Ptychaspis tuberosa (62110) Ptychaspis striata, Ptychaspis miniscaensis, Prosaukia ambigua, Prosaukia misa, Monocheilus anatinum (62118) Ptychaspis striata, Ptychaspis miniscaensis, Prosaukia misa (62115 62119 62120 62122) Ptychaspis striata, Stigmacephalus flexifrons, Ptychaspis granulosa, Monocheilus anatinum, Ptychaspis tuberosa (62108) Ptychaspis striata, Stigmaspis hudsonensis, Ptychaspis miniscaensis, Prosaukia ambigua, Prosaukia misa, Monocheilus anatinum (62117) Stigmacephalus flexifrons, Ptychaspis granulosa (62105)
Franconian497.0 - 486.85USA (Montana) Monocheilus demissus, Ptychaspis granulosa (247) Ptychaspis granulosa (131319 240232) Stigmacephalus sp. (246)
Franconian497.0 - 486.85USA (South Dakota) Idiomesus granti (9744) Monocheilus micros (9736 9737 9738) Prosaukia sp., Ptychaspis miniscaensis (9734) Ptychaspis bullasa, Monocheilus micros (9739) Ptychaspis miniscaensis (9747 9748) Ptychaspis miniscaensis, Monocheilus micros (9745 9751) Ptychaspis sp. (9740 9741 9743) Ptychaspis sp., Prosaukia misa (9749)
Franconian497.0 - 486.85USA (Idaho) Ptychaspis sp. (251)
Franconian497.0 - 486.85USA (Wyoming) Ptychaspis tuberosa, Ptychaspis striata (238626)
Franconian497.0 - 486.85USA (Wisconsin) Briscoia schucherti, Prosaukia anomala (233639)
Franconian - Trempealeauan497.0 - 486.85Australia (Queensland) Lophosaukia torquata (198276 198280 198282 198283)
Furongian497.0 - 486.85USA (Texas) Berkeia glabellamersa (156269 156277 156278 156284)
Furongian497.0 - 486.85Canada (Alberta) Idiomesus sp. (229379 229380)
Furongian497.0 - 486.85South Korea Asioptychaspis subglobosa (232035) Changia sp., Lophosaukia sp., Quadraticephalus elongatus, Hamashania pulchera (232039) Hamashania busiris, Ptychaspididae indet., Quadraticephalus elongatus, Lophosaukia orientalis, Hamashania pulchera (232038) Hamashania pulchra, Quadraticephalus elongatus, Lophosaukia orientalis (232036) Ptychaspididae indet., Asioptychaspis subglobosa (232034) Ptychaspididae indet., Quadraticephalus elongatus, Lophosaukia orientalis, Hamashania pulchera (232037)
Furongian497.0 - 486.85Iran Alborsella sp. (22824) Alborsella stoecklini (186034) Saukia rotunda (22825)
Merioneth497.0 - 486.85USA (Vermont) Keithia schucherti, Idiomesus tantillus (6871) Keithia schucherti, Keithiella raymondi, Prosaukia irrasa (8976)
Paibian - Taoyuanian497.0 - 486.85China (Hunan) Linguisaukia affinis (130015)
Taoyuanian495.2 - 486.85China (Hunan) Mictosaukia combinata, Lophosaukia jiangnanensis (126669 126722) Saukia enshiensis (107326)
Taoyuanian495.2 - 486.85China (Hebei) Ptychaspis subglobosa (129604 129616)
Taoyuanian - Niuchehean495.2 - 486.85China (Anhui) Calvinella tangcunensis, Saukia jingxianensis, Prosaukia diversa, Saukia crassa, Calvinella lira (127532) Saukia crassa, Saukia reflexa (127531) Saukia jingxianensis, Saukiella diversa (127320) Saukia sp. (127319)
Taoyuanian - Niuchehean495.2 - 486.85Türkiye Alborsella stoecklini (133721)
Iverian494.2 - 491.0Australia (Queensland) Caznaia sectaris, Prosaukia sp. A (198294) Caznaia sectatrix, Prosaukia sp. A (198295 198298) Caznaia sectatrix, Prosaukia sp.A (198297) Caznaia squamosa (198289 198290 198291 198292) Caznaia squamosa, Caznaia sectatrix, Prosaukia sp. A (198293) Prosaukia sp. (228034 228035 228037)
Sunwaptan493.5 - 488.9Canada (Alberta) Briscoia dalyi (81303) Calvinella procera, Macronoda prima, Proricephalus wilcoxensis, Wilcoxaspis bulbosa, Idiomesus intermedius, Calvinella tenuisculpta (54096 81298) Euptychaspis sp., Wilcoxaspis bulbosa, Calvinella tenuisculpta (81301) Idiomesus granti (81304) Keithiella sp., Kathleenella frontalis (81305) Keithiella sp., Monocheilus truncatus, Idiomesus sp. (81307) Monocheilus orestes, Ptychaspis bullasa, Ptychaspis striata, Ptychaspis sp., Stigmaspis albertensis, Ptychaspis miniscaensis, Monocheilus micros, Keithiella depressa (64687) Monocheilus orestes, Ptychaspis sp., Ptychaspis monsensis, Stigmaspis albertensis, Idiomesus granti, Prosaukia misa, Keithiella depressa (54091) Monocheilus orestes, Stigmaspis albertensis, Idiomesus granti, Ptychaspis miniscaensis (54090) Monocheilus truncatus, Idiomesus infimus, Princetonella sp., Proricephalus scapane, Dikelocephalus oweni, Briscoia angustilimba, Briscoia dalyi, Keithiella intermedia, Kathleenella frontalis (54093) Prosaukia sp., Saukia imperatrix, Saukiella pepinensis, Proricephalus wilcoxensis, Sunwaptia carinata, Saukiella junia, Euptychaspis typicalis (54094) Ptychaspis bullasa, Ptychaspis striata, Stigmaspis albertensis, Monocheilus micros (54088) Ptychaspis miniscaensis (81296) Ptychaspis miniscaensis, Keithiella depressa (81306) Ptychaspis sp., Idiomesus greggi, Prosaukia misa (54092) Saukia imperatrix, Proricephalus wilcoxensis, Euptychaspis typicalis (81297) Stigmacephalus oweni (54087 64686) Stigmaspis albertensis (81302)
Sunwaptan493.5 - 488.9USA (Utah) Euptychaspis sp., Euptychaspis lawsonensis, Macronoda notchpeakensis, Idiomesus intermedius (235997) Keithiella sp., Euptychaspis lawsonensis, Macronoda notchpeakensis, Idiomesus intermedius (235998 235999)
Sunwaptan493.5 - 488.9USA (Nevada) Dikelocephalus minnesotensis, Prosaukia oldyelleri, Idiomesus levisensis, Sunwaptia plutoi, Euptychaspis dougali (235995) Euptychaspis sp. (204002) Euptychaspis sp., Saukia sp., Idiomesus sp. (8975) Euptychaspis sp., Saukiella sp., Idiomesus sp. (203998) Keithiella sp., Euptychaspis lawsonensis, Macronoda notchpeakensis, Idiomesus intermedius (236000)
Sunwaptan493.5 - 488.9Canada (Newfoundland and Labrador) Keithia schucherti (81269) Keithia schucherti, Idiomesus ultimus, Idiomesus tantillus, Kathleenella maritima, Idiomesus levisensis (81271) Keithia schucherti, Idiomesus ultimus, Idiomesus tantillus, Kathleenella maritima, Keithiella cylindrica, Idiomesus levisensis (81270) Keithia schucherti, Prosaukia irrasa, Idiomesus ultimus, Kathleenella maritima (81272) Keithia subclavata, Keithiella cylindrica (81285 81286) Keithiella cylindrica (81287) Keithiella depressa (81277 81284)
Sunwaptan493.5 - 488.9USA (New Mexico) Euptychaspis kirki (203887)
Sunwaptan493.5 - 488.9USA (Minnesota) Tellerina sp., Dikelocephalus minnesotensis (233637) Walcottaspis vanhornei (233636)
Sunwaptan493.5 - 488.9USA (Texas) Briscoia hartti (233748) Briscoia llanoensis, Euptychaspis kirki, Keithiella patula (185210) Saukiella junia, Briscoia hartti (233749)
Sunwaptan493.5 - 488.9USA (Oklahoma) Briscoia llanoensis (240397) Briscoia llanoensis, Idiomesus levisensis (240401) Calvinella tenuisculpta (240386 240394 240450) Calvinella tenuisculpta, Euptychaspis kirki (240395) Calvinella tenuisculpta, Euptychaspis kirki, Euptychaspis jugalis (240440) Calvinella tenuisculpta, Euptychaspis typicalis (240418) Euptychaspis frontalis (190350) Euptychaspis jugalis (240449 240452) Euptychaspis kirki (240393 240396 240402 240403 240413 240416 240441) Euptychaspis kirki, Euptychaspis jugalis (240445) Euptychaspis typicalis (240470) Idiomesus levisensis (240389 240391 240453 240455 240462 240464) Idiomesus levisensis, Calvinella tenuisculpta (240417) Idiomesus levisensis, Calvinella tenuisculpta, Euptychaspis kirki, Euptychaspis jugalis (240443) Idiomesus levisensis, Calvinella tenuisculpta, Euptychaspis kirki, Keithiella patula (240419) Idiomesus levisensis, Euptychaspis jugalis (240454) Idiomesus levisensis, Euptychaspis kirki (240399 240412 240415 240448) Idiomesus levisensis, Euptychaspis typicalis (240451 240458 240459) Idiomesus levisensis, Euptychaspis typicalis, Saukia tumida (240465) Idiomesus levisensis, Saukia tumida (240471) Ptychaspis sp. undet. (240488) Saukia tumida (240466 240467 240473) Saukiella serotina, Briscoia hartti, Euptychaspis typicalis, Euptychaspis jugalis (240444) Saukiella serotina, Idiomesus levisensis (240390)
Sunwaptan493.5 - 488.9USA (Wisconsin) Briscoia pertransversa (233787)
Sunwaptan493.5 - 488.9USA (New York) Calvinella prethoparia, Prosaukia spinula, Euptychaspis typicalis (257) Euptychaspis sp. indet., Prosaukia spinula (85187) Prosaukia spinula, Euptychaspis typicalis (85185 85186)
Batyrbaian491.5 - 486.85Kazakhstan Lophosaukia rectangulata (118905 118906 118907 118908 118909 118910) Prosaukia paiensis (118901) Prosaukia paiensis, Saukiella baikadamica (118895 118898 118904) Saukiella baikadamica (118892 118894 118897 118899 118902)
Payntonian491.0 - 488.3Australia (Tasmania) Diemanosaukia miserabilis (119430) Saukia blissetti, Diemanosaukia miserabilis (119429)
Payntonian491.0 - 488.3Australia (Northern Territory) Anderssonella sp., Lophosaukia sp., Quadraticephalus sp., Tellerina sp. (77530) Calvinella sp., Coreanocephalus sp., Lophosaukia sp., Mictosaukia sp., Quadraticephalus sp., Tellerina sp. (77416) Coreanocephalus sp. (77435) Coreanocephalus sp., Mictosaukia sp., Saukia sp. (77438) Lophosaukia sp., Mictosaukia sp., Tellerina sp. (77421) Lophosaukia sp., Quadraticephalus sp. (77649) Mictosaukia sp. (77440) Mictosaukia sp., Tellerina sp. (77420) Prosaukia misa (77439)
Niuchehean491.0 - 486.85China (Jilin Provence) Calvinella micropora (156898) Calvinella micropora, Mictosaukia angustilimbata (156900) Calvinella micropora, Mictosaukia striata, Mictosaukia orientalis (156906) Mictosaukia sp. (156912) Mictosaukia striata (156909) Saukia acrofronsa (156924)
Niuchehean491.0 - 486.85Türkiye Mictosaukia rotundata (133723)
Niuchehean491.0 - 486.85China (Jilin) Calvinella micropora (156904) Calvinella micropora, Calvinella triangula, Mictosaukia angustilimbata, Mictosaukia striata, Mictosaukia orientalis (156907) Mictosaukia striata, Mictosaukia orientalis (156905)
Niuchehean491.0 - 486.85China (Zhejiang) Lophosaukia jiangnanensis (125701 125702)
Niuchehean491.0 - 486.85China (Anhui) Anderssonella sp. (127322) Changia sp., Saukia jingxianensis, Pseudocalvinella spinosa (127321) Mictosaukia maculata (127534) Mictosaukia sp., Saukia sp. (127536)
Niuchehean491.0 - 486.85China (Hebei) Mictosaukia luanhensis, Mictosaukia orientalis (129659) Quadraticephalus sp. (129619)
Niuchehean491.0 - 486.85China (Henan) Changia sp. (129220) Changia sp., Prosaukia sp., Changia chinensis (129219) Changia sp., Prosaukia sp., Mictosaukia luanhensis (129217) Prosaukia sp. (129218)
Niuchehean491.0 - 486.85China (Hunan) Linguisaukia affinis (107329 126679 126726 130104) Lophosaukia jiangnanensis (107327) Mictosaukia combinata (126723) Mictosaukia striata, Mictosaukia sp. (126730) Saukia sp. (130105)
Dolgellian490.2 - 486.85USA (Pennsylvania) Imlerella praecipita (62086 62094 62095)
Dolgellian490.2 - 486.85Canada (Quebec) Keithia subclavata (8934) Keithia subclavata, Idiomesus levisensis (8933)
Dolgellian490.2 - 486.85Iran Mictosaukia rotunda (66872)
Trempealeauan490.2 - 486.85Canada (Newfoundland and Labrador) Idiomesus sp. (105858)
Trempealeauan490.2 - 486.85USA (Texas) Briscoia llanoensis, Euptychaspis kirki, Keithiella patula (216015) Briscoia llanoensis, Saukiella norwalkensis (233745) Calvinella ozarkensis, Briscoia llanoensis, Idiomesus intermedius, Euptychaspis kirki, Saukiella norwalkensis (233747) Calvinella prethoparia, Macronoda prima, Saukiella serotina, Briscoia llanoensis, Idiomesus intermedius, Euptychaspis kirki (219654) Calvinella prethoparia, Saukia imperatrix, Saukiella planata, Saukiella serotina, Briscoia llanoensis, Idiomesus intermedius, Euptychaspis kirki (219648) Calvinella prethoparia, Saukiella serotina, Briscoia llanoensis, Idiomesus intermedius, Euptychaspis kirki (219652) Calvinella prethoparia, Saukiella serotina, Euptychaspis kirki, Keithiella patula (219655) Calvinella procera, Saukiella serotina (219656) Dikelocephalus sp., Elkia sp., Monocheilus truncatus, Saukiella fallax, Idiomesus levisensis, Euptychaspis frontalis, Keithiella scrupulosa (216017) Dikelocephalus sp., Monocheilus truncatus, Saukiella fallax, Idiomesus levisensis, Euptychaspis frontalis, Keithiella scrupulosa (216018) Euptychaspis kirki (216014) Idiomesus levisensis (216016) Macronoda prima, Saukiella serotina, Briscoia llanoensis, Idiomesus intermedius, Calvinella tenuisculpta, Euptychaspis kirki (219653) Saukia imperatrix, Saukiella serotina, Briscoia llanoensis, Euptychaspis kirki (219651) Saukiella junia var. B Winston and Nicholls 1967, Saukiella junia, Euptychaspis jugalis (219678) Saukiella junia var. B Winston and Nicholls 1967, Saukiella junia, Euptychaspis typicalis (219679) Saukiella serotina (219657)
Trempealeauan490.2 - 486.85USA (Wisconsin) Calvinella wisconsinensis, Dikelocephalus minnesotensis (54180) Dikelocephalus sp., Saukia sp. (255) Dikelocephalus sp., Saukia sp., Saukiella sp., Tellerina sp. (256)
Trempealeauan490.2 - 486.85USA (Oklahoma) Keithiella scrupulosa (221094)
Trempealeauan490.2 - 486.85Canada (Quebec) Keithia similis, Keithiella cylindrica, Keithiella brevis (224137) Keithia subclavata (224141 224144 224150) Keithia subclavata, Keithiella cylindrica (224138 224139) Keithia subclavata, Keithiella cylindrica, Stigmametopus levisensis (224140) Keithiella depressa (224146) Pterocephalops acrophthalma (224148)
Trempealeauan490.2 - 486.85USA (Utah) Euptychaspis sp., Prosaukia sp., Saukia sp., Saukiella sp., Idiomesus sp. (259)
Trempealeauan490.2 - 486.85USA (Wyoming) Briscoia sp. (9770) Monocheilus truncatus (9767) Saukiella pyrene (9771)
Trempealeauan490.2 - 486.85USA (Colorado) Saukia coloradoensis (233788)
Trempealeauan490.2 - 486.85USA (Missouri) Calvinella n. sp. (8905) Calvinella ozarkensis (8693 8700 93582) Calvinella sp. (49504)
Trempealeauan490.2 - 486.85Canada (Yukon) Calvinella prethoparia, Kathleenella subula, Idiomesus intermedius (55285 55311) Calvinella prethoparia, Prosaukia sp., Euptychaspis kirki (55313) Kathleenella hamulata, Plectrella yukonensis (55308) Kathleenella subula (55312) Kathleenella subula, Plectrella yukonensis (55310) Parabriscoia elegans (55305) Parabriscoia elegans, Idiomesus levisensis (55307)
Trempealeauan490.2 - 486.85USA (New York) Ptychaspis speciosus, Dicellocephalus hartti (74541) Ptychaspis speciosus, Dicellocephalus tribulus, Dicellocephalus hartti (74540)
Trempealeauan490.2 - 486.85Canada (Alberta) Idiomesus intermedius (54119)
Trempealeauan490.2 - 486.85USA (South Dakota) Briscoia dalyi (9759) Briscoia sp., Briscoia dalyi (9758) Dikelocephalus minnesotensis (9753 9755) Monocheilus truncatus, Prosaukia species unidentified No. 1, Idiomesus infimus, Briscoia dalyi (9756) Monocheilus truncatus, Saukiella sp., Idiomesus infimus, Saukiella pyrene, Briscoia angustilimba (9763) Saukiella pyrene (9754 9757 9779)
Trempealeauan490.2 - 486.85USA (Nevada) Euptychaspis indet., Macronoda indet. (50831) Tellerina marica, Idiomesus sp., Briscoia nevadensis, Elkia nasuta, Calvinella tenuisculpta, Euptychaspis kirki (233789)
Trempealeauan490.2 - 486.85Canada (Newfoundland) Calvinella tenuisculpta (196017)
Skullrockian488.9 - 483.4Canada (British Columbia) Briscoia sinclairensis (233704 233705)
Skullrockian488.9 - 483.4USA (Texas) Idiomesus intermedius (240193) Saukiella junia var. B Winston and Nicholls 1967, Saukiella junia (219681) Saukiella junia var. B Winston and Nicholls 1967, Saukiella junia, Euptychaspis typicalis, Saukia tumida (219680)
Skullrockian488.9 - 483.4Canada (Alberta) Briscoia sinclairensis (233707)
Mansian486.85 - 485.0Russian Federation (Siberia) Calvinella sp. (9273) Saukiella sp. (9280)
Warendian486.85 - 484.3Australia (Northern Territory) Quadraticephalus sp. (77712)
Tremadocian486.85 - 477.1Canada (Yukon) Calvinella prethoparia, Idiomesus intermedius (55315)
Tremadocian486.85 - 477.1Canada (Newfoundland and Labrador) Idiomesus intermedius (81290) Idiomesus tantillus, Plectrella yukonensis, Idiomesus intermedius (81289)
Tremadoc486.4 - 477.1China (HeNan) Changia sp. (20767)
Tremadoc486.4 - 477.1Mexico (Oaxaca) Saukia globosa (9826 9841 9846)
Tremadoc486.4 - 477.1Russian Federation (Siberia) Saukiella sp. (9231)
Tremadoc486.4 - 477.1Antarctica Saukiidae indet. (116174)