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Dimeropygidae

Trilobita - Proetida - Dimeropygidae

Synonyms
Synonymy list
YearName and author
1953Dimeropygidae Hupe
1953Toernquistiidae Hupé
1997Dimeropygidae Whittington et al. p. 300
1998Toernquistiidae Chatterton et al. p. 286
1999Dimeropygidae Fortey and Droser p. 191
2004Toernquistiidae Owens
2011Dimeropygidae Adrain p. 106
2013Dimeropygidae Fortey and Bruton

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyDimeropygidaeHupe 1953
familyDimeropygidaeHupe 1953

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. †Dimeropygidae Hupe 1953
show all | hide all
G. †Bearriverops Adrain and Westrop 2007
+
†Bearriverops alsacharovi Adrain and Westrop 2007
†Bearriverops borderinnensis Adrain and Westrop 2007
†Bearriverops deltaensis Adrain and Westrop 2007
†Bearriverops ibexensis Adrain and Westrop 2007
†Bearriverops loganensis Adrain and Westrop 2007
G. †Chomatopyge Whittington and Evitt 1953
+
†Chomatopyge canasi Chatterton et al. 1998
†Chomatopyge falcata Whittington and Evitt 1953
†Chomatopyge marginifera Whittington and Evitt 1953
G. †Dimeropyge Opik 1937
+
†Dimeropyge speyeri Chatterton 1994
†Dimeropyge spinifera Whittington and Evitt 1953
†Dimeropyge tumidus Bradley 1930
†Dimeropyge virginiensis Whittington and Evitt 1953
Invalid names: Haploconus Raymond 1913 [replaced]
G. †Dimeropygiella Ross 1951
+
†Dimeropygiella blanda Hintze 1953
†Dimeropygiella fillmorensis Adrain et al. 2001
†Dimeropygiella mccormicki Adrain et al. 2001
†Dimeropygiella ovata Hintze 1953
G. †Heckethornia McAdams and Adrain 2009
+
†Heckethornia ballionae McAdams and Adrain 2009
†Heckethornia bowiei McAdams and Adrain 2009
†Heckethornia hyndeae McAdams and Adrain 2009
†Heckethornia morrisseyi McAdams and Adrain 2009
†Heckethornia numani McAdams and Adrain 2009
†Heckethornia smithi McAdams and Adrain 2009
G. †Ischyrotoma Raymond 1925
+
†Ischyrotoma anataphra Fortey 1979
†Ischyrotoma borealis Fortey 1980
†Ischyrotoma eos Kobayashi 1955
†Ischyrotoma juabensis Adrain et al. 2001
†Ischyrotoma parallela Boyce 1989
†Ischyrotoma sila Loch 2007
†Ischyrotoma twenhofeli Raymond 1925
†Ischyrotoma wahwahensis Adrain et al. 2001
G. †Mesotaphraspis Whittington and Evitt 1953
+
†Mesotaphraspis bockeliei Bruton and Owen 1979
†Mesotaphraspis inornata Whittington and Evitt 1953
†Mesotaphraspis parva Whittington and Evitt 1953
G. †Pseudohystricurus Ross 1951
+
G. †Toernquistia Reed 1896
+
†Toernquistia sanchezae Chatterton et al. 1998
Invalid names: Paratoernquistia Chatterton et al. 1998 [synonym]
G. †Tulepyge Adrain and Westrop 2006
+
†Tulepyge tulensis Adrain and Westrop 2006
Invalid names: Mesotaphraspidinae Jaanusson 1956 [empty], Toernquistiidae Hupé 1953 [synonym]
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-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2010-02-06 03:21:36
Modified: 2010-02-06 05:21:36
Source: f = family, o = order, c = class
References: Fortey and Owens 1999, Aberhan et al. 2004, Alvarez et al. 2008

Age range: base of the Lancefieldian to the top of the Ordovician or 484.30000 to 443.80000 Ma

Collections (245 total)


Time interval Ma Country or state Original ID and collection number
Skullrockian487.5 - 482.3USA (Utah) Dimeropygidae indet. (106420)
Ibexian487.5 - 470.0USA (Nevada) Pseudohystricurus sp. (104558)
Tremadoc486.5 - 477.7Canada (Alberta) Ischyrotoma caudanodosa (10902) Ischyrotoma eos (10994 10995) Pseudohystricurus sp. (10989)
Stairsian485.4 - 478.6USA (Utah) Bearriverops alsacharovi (106428) Bearriverops alsacharovi, Bearriverops ibexensis (106398) Bearriverops deltaensis, Bearriverops ibexensis (106429) Bearriverops loganensis, Bearriverops borderinnensis (106430) Pseudohystricurus sp. (104109)
Stairsian485.4 - 478.6USA (Idaho) Bearriverops alsacharovi (106424) Bearriverops loganensis (106387 106390 106426 106427) Bearriverops sp. A (106425) D. sp. 2 (228283) Pseudohystricurus obesus (103822) Pseudohystricurus sp., Hystricurus sp. C (103809)
Gasconadian485.4 - 477.7USA (Nevada) Pseudohystricurus sp. (104517)
Gasconadian485.4 - 477.7USA (Idaho) Pseudohystricurus rotundus (103814)
Gasconadian485.4 - 477.7USA (Texas) Pseudohystricurus sp. (282 78730 78731)
Tremadocian485.4 - 477.7Canada (Newfoundland and Labrador) Hystricurus sp. (105854) Pseudohystricurus obesus (105855) Pseudohystricurus obesus, Hystricurus sp. (105867) Pseudohystricurus rotundus (105868) Tulepyge paucituberculata (106423)
Jeffersonian485.4 - 470.0Canada (Newfoundland) Ischyrotoma anataphra, Ischyrotoma parallela (195756 195785)
Jeffersonian485.4 - 470.0USA (Texas) Pseudohystricurus sp. (80088)
Jeffersonian485.4 - 470.0USA (Oklahoma) Ischyrotoma sila (106580 106597 106598 106600 106604 106606 106608 106609 106610 106612 106613 106614 106617 106730 106734 106737 106866 106870 106875 106877 106927 106930)
Jeffersonian485.4 - 470.0Canada (Newfoundland and Labrador) Ischyrotoma parallela (133147)
Ordovician485.4 - 443.8USA (Idaho) Toernquistia sp. (339)
Lancefieldian484.3 - 474.9Australia (Tasmania) Pseudohystricurus sp. (2671)
Lancefieldian - Bendigonian484.3 - 473.1Australia (Tasmania) Pseudohystricurus sp. (211106)
Cassinian482.3 - 470.0Canada (Newfoundland) Ischyrotoma anataphra (195757 195758 195782 195784)
Cassinian482.3 - 470.0United Kingdom (Scotland) Ischyrotoma stubblefieldi (75589)
Cassinian482.3 - 470.0USA (Oklahoma) Dimeropygiella sp. 1 (106822 106825) Ischyrotoma sila (106743 106941) Ischyrotoma sp. (106778 106800) Ischyrotoma sp. 1 (106764 106765) Ischyrotoma sp. 1, Ischyrotoma sila (106952)
Cassinian482.3 - 470.0Canada (Newfoundland and Labrador) Ischyrotoma anataphra (69196 103540 106241 133127 133140) Ischyrotoma anataphra, Ischyrotoma parallela (106239) Ischyrotoma parallela (106238)
Cassinian482.3 - 470.0Canada (Quebec) Ischyrotoma sp. (50060 50062)
Tulean480.8 - 474.9Norway (Spitsbergen) Ischyrotoma parallela (189832 189837)
Tulean480.8 - 474.9USA (Utah) Heckethornia ballionae (106440 106441) Heckethornia bowiei (106442 106443) Heckethornia bowiei, Heckethornia morrisseyi (106444) Heckethornia numani, Heckethornia hyndeae (106445) Heckethornia smithi (228309)
Tulean480.8 - 474.9USA (Nevada) Heckethornia bowiei, Heckethornia morrisseyi (106447) Heckethornia hyndeae (106448) Heckethornia numani, Heckethornia hyndeae (106449)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland) Ischyrotoma anataphra (196385) Ischyrotoma sp., Ischyrotoma anataphra (195770 196380)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland and Labrador) Ischyrotoma anataphra (195776) Ischyrotoma parallela (196381) Ischyrotoma sp. (196503)
Arenig478.6 - 466.0Greenland Ischyrotoma anataphra (221130)
Arenig478.6 - 466.0USA (New York) Ischyrotoma sp. (55243)
Arenigian - Llanvirn478.6 - 458.4Canada (Northwest Territories) Ischyrotoma sp. (25285)
Floian477.7 - 470.0Canada (Newfoundland) Ischyrotoma sp., Ischyrotoma anataphra (195748)
Blackhillsian474.9 - 470.0Canada (Alberta) Ischyrotoma caudanodosa (10899)
Blackhillsian474.9 - 470.0USA (California) Dimeropygiella sp. (104349) Ischyrotoma caudanodosa (104636)
Blackhillsian474.9 - 470.0Norway (Spitsbergen) Ischyrotoma sp. (189838 189839)
Blackhillsian474.9 - 470.0Canada (Newfoundland) Ischyrotoma sp. (195777)
Blackhillsian474.9 - 470.0USA (Nevada) Dimeropygiella sp., Ischyrotoma sp. (77181) Ischyrotoma caudanodosa (104556) Ischyrotoma ovata (104548 104553) Ischyrotoma sp. (104431 104549 104554 104630)
Blackhillsian474.9 - 470.0USA (Utah) Dimeropygiella blanda (104118 104121) Dimeropygiella caudanodosa (63840 63846 63848 63926 63928 63931 103831 103917) Dimeropygiella ovata, Dimeropygiella blanda, Heckethornia alticapitis (105780) Dimeropygiella sp. (295 104116 104126 104127 105779) Ischyrotoma blanda, Psalikilopsis alticapitis, Ischyrotoma ovata (69261)
Rangerian470.0 - 470.3USA (California) Ischyrotoma sp. (104638)
Rangerian470.0 - 470.3USA (Nevada) Dimeropyge sp. (80059) Ischyrotoma sp. (104448 104565) Ischyrotoma stubblefieldi, Ischyrotoma stubblefieldi (104653)
Rangerian470.0 - 470.3USA (Utah) Ischyrotoma sp. (37452) Ischyrotoma stubblefieldi (37454 37462 37464 37465)
Castlemainian - Yapeenian470.0 - 467.3Ireland Dimeropyge ericina (153922)
Dapingian470.0 - 467.3USA (California) Ischyrotoma sp. (104639)
Chazyan470.0 - 457.3Canada (Northwest Territories) Dimeropyge clintonensis (24621 26054 26055 26057) Dimeropyge sp. (315)
Chazyan470.0 - 457.3Canada (Newfoundland and Labrador) Ischyrotoma sp. (104861)
Rangerian - Whiterockian470.0 - 457.3USA (California) Ischyrotoma sp. (104640)
Whiterockian470.0 - 457.3Canada (Newfoundland and Labrador) Ischyrotoma twenhofeli (104752)
Whiterockian470.0 - 457.3USA (Nevada) Ischyrotoma stubblefieldi (37481 37482) Pseudohystricurus sp. (80065)
Whiterockian470.0 - 457.3USA (Utah) Dimeropygiella caudanodosa, Ischyrotoma wahwahensis (106373 106374 106375) Dimeropygiella fillmorensis, Dimeropygiella mccormicki (106371) Dimeropygiella ovata, Dimeropygiella blanda, Dimeropygiella fillmorensis, Heckethornia alticapitis (106370) Dimeropygiella sp., Dimeropygiella caudanodosa (106372)
Whiterockian470.0 - 457.3Norway (Spitsbergen) Ischyrotoma twenhofeli, Ischyrophyma borealis (106480)
Whiterockian470.0 - 457.3USA (New York) Dimeropyge clintonensis (103000 103001 103002 103004 103012 103312)
Whiterockian470.0 - 457.3USA (Vermont) Dimeropyge clintonensis (103286)
Chazyan - Caradoc470.0 - 449.5Canada (Northwest Territories) Dimeropyge clintonensis (25308 25309 25310)
Llanvirn468.0 - 458.4Canada (Newfoundland and Labrador) Ischyrotoma sp. (78097) Ischyrotoma twenhofeli (78099)
Darriwilian467.3 - 458.4China (Xinjiang) Ischyrotoma sp. (188380)
Darriwilian467.3 - 458.4Russian Federation (Siberia) Dimeropyge sp. (205561)
Late/Upper Llanvirn463.5 - 460.9Argentina (San Juan) Chomatopyge canasi (73371 73372 73374 73375 73377 73381 73382 73383 73384 73385 73386)
Llandeilo - Aurelucian461.1 - 456.6United Kingdom (Scotland) Dimeropyge labrosa (182195 182196) Dimeropyge labrosa, Mesotaphraspis circumflexa (182194)
Costonian458.4 - 457.2United Kingdom (Scotland) Toernquistia sp. (76076)
Costonian458.4 - 457.2Argentina (San Juan) Paratoernquistia sanchezae (73368 73369 73370 73380)
Costonian - Harnagian458.4 - 457.2Argentina Toernquistia sp. (9033)
Aurelucian458.4 - 456.6United Kingdom (Scotland) Dimeropyge hystrix, Mesotaphraspis sp., Toernquistia sp. (181539) Toernquistia sp. (181541)
Soudleyan - Marshbrookian458.4 - 454.0Norway Mesotaphraspis sp. (2948)
Sandbian458.4 - 453.0United Kingdom (Scotland) Dimeropyge sp. (208124) Dimeropyge sp., Mesotaphraspis sp. (208123) Mesotaphraspis dalfaskensis (208116 208125) Mesotaphraspis sola, Toernquistia translata, Toernquistia sp. (208120) Toernquistia sp. (208121) Toernquistia translata, Mesotaphraspis dalfaskensis (208115)
Sandbian458.4 - 453.0Kazakhstan Mesotaphraspis spinosus (80177 80224)
Sandbian458.4 - 453.0Argentina (San Juan) Paratoernquistia sanchezae (73378 73379 73388)
Caradoc458.4 - 449.5USA (Colorado) Toernquistia sp. (10380 170686)
Caradoc458.4 - 449.5Ireland Mesotaphraspis sp. (182517)
Caradoc458.4 - 449.5China (GanSu) Toernquistia sp. (8565)
Turinian457.3 - 453.8USA (Virginia) Dimeropyge sp. (76338 105203) Mesotaphraspis parva, Chomatopyge falcata (73342)
Ashbyan457.3 - 449.6USA (Virginia) Dimeropyge virginiensis, Mesotaphraspis parva, Chomatopyge falcata (73341)
Blackriveran457.3 - 449.6USA (Virginia) Chomatopyge falcata (73343) Dimeropyge spinifera, Mesotaphraspis inornata, Chomatopyge marginifera (73340) Dimeropyge virginiensis (102231) Mesotaphraspis parva (105255)
Rocklandian457.3 - 449.6USA (Nevada) Toernquistia idahoensis (331)
Shermanian457.3 - 449.6Canada (Northwest Territories) Dimeropyge sp. (25313 25314 25315 25316 25317 25318)
Trentonian457.3 - 449.6USA (Missouri) Haploconus tumidus (89024)
Burrellian456.6 - 452.5United Kingdom (Scotland) Toernquistia translata (165043)
Chatfieldian - Edenian453.8 - 450.2Canada (Nunavut) Ischyrotoma raymondi (24116)
Oandu453.0 - 451.8Norway (Oslo-Asker) Mesotaphraspis sp. (162529)
Oandu453.0 - 451.8Norway Mesotaphraspis sp., Mesotaphraspis bockeliei (162532)
Oandu - Rakvere453.0 - 450.5Norway (Oslo-Asker) Mesotaphraspis bockeliei (163191)
Eastonian - Onnian452.7 - 449.5Australia (New South Wales) Toernquistia sp. (2746)
Edenian451.0 - 450.2Canada (Quebec) Dimeropyge lucifer (163865)
Edenian451.0 - 450.2Canada (Northwest Territories) Dimeropyge sp. (24636)
Edenian451.0 - 450.2USA (Pennsylvania) Mesotaphraspis sp. (34895)
Rawtheyan - Hirnantian448.8 - 443.4Norway Mesotaphraspis sp. (162225 163364)