Taxon / Higher classification / Age / Reference
Bynumina lirae / Ptychopariida / Kingstoniidae / upper Cambrian / Stitt 1983; figs 3a-h
Cliffia lataegenae / Uncertain / upper Cambrian / Stitt 1983; figs 2h-k
Cliffia wilsoni / Uncertain / upper Cambrian / Stitt 1983; figs 2l-u
Drabia acroccipita / Uncertain / upper Cambrian / Stitt 1983; fig. 2v
Elyaspis missouriensis / Uncertain / upper Cambrian / Stitt 1983; figs 3i-m
Sulcocephalus candidus / Ptychopariida / Elviniidae / upper Cambrian / Stitt 1983; figs 2a-f
Stenopilus pronus / Asaphida / Plethopeltidae / upper Cambrian
(upper Sunwaptan) / Whittington 2005;
fig. 2
Leiocoryphe gemma* / Asaphida / Plethopeltidae / upper Cambrian / Whittington 2003;
fig. 4
Plethopeltis armata / Asaphida / Plethopeltidae / upper Cambrian / Whittington 2003;
figs 1.3, 1.5, 1.6
Diceratocephalus cornutus / Ptychopariida / Diceratocephalidae / late middle Cambrian
(Marjuman) / Park and Choi 2010;
figs 7O, P
Bolaspidella housensis / Ptychopariida / Bolaspidae / middle Cambrian
(Marjuman) / Robison 1964;
plate 89, fig. 8
Solenopleura / Ptychopariida / Solenopleuridae / middle Cambrian (Drumian) / Westergård 1936
Eccaparadoxides pradoanus / Redlichiida / Redlichiina / Paradoxididae / middle Cambrian
(Drumian) / Esteve et al. 2011;
fig. 1f
Eccaparadoxides cf. brachyrachis + / Redlichiida / Redlichiina / Paradoxididae / middle Cambrian
(Drumian) / Becq-giraudon and Baillat 2005; fig. 1
Paradoxides gracilis / Redlichiida / Redlichiina / Bathynotidae / middle Cambrian
(Drumian) / Pompejick 1896; see alsoŠnajdr 1957
Schopfaspis? graciai / Ptychopariida / Alokistocaridae / middle Cambrian
(Drumian) / Esteve et al. 2012;
fig. 3k
Pardailhania cf. hispida / Ptychopariida / Solenopleuridae / middle Cambrian
(Drumian) / Esteve et al. 2010;
fig. 7
Solenopleuropsis sp. / Ptychopariida / Solenopleuridae / middle Cambrian
(Drumian) / Esteve et al. 2010;
figs 3, 4, 8, 10
Solenopleuropsis thorali / Ptychopariida / Solenopleuridae / middle Cambrian
(Drumian) / Esteve et al. 2010;
fig. 9a
Conocoryphe heberti / Ptychopariida / Conocoryphidae / middle Cambrian
(Drumian) / Esteve et al. 2011;
fig. 1e
Agraulos longicephalus / Ptychopariida / Agraulidae / middle Cambrian
(Drumian) / Esteve 2013;
fig. 5
Ctenocephalus antiquus / Ptychopariida / Conocoryphidae / middle Cambrian
(Drumian) / Esteve 2013;
Figs 3a, b
Hydrocephalus carens / Redlichiida / Redlichiina / Paradoxididae / middle Cambrian
(Stage 5 – Drumian) / Barrande 1852; see alsoŠnajdr 1957
Conocoryphe / Ptychopariida / Conocoryphidae / middle Cambrian
(Stage 5 – Drumian) / Barrande 1852
Sao / Ptychopariida / Solenopleuridae / middle Cambrian
(Stage 5 – Drumian) / Barrande 1852
Bathynotus holopygus* / Redlichiida / Redlichiina / Bathynotidae / middle Cambrian
(Stage 5) / Shergold and Whittington 2000; fig. 3
Parasolenopleura gregaria / Ptychopariida / Solenopleuridae / middle Cambrian
(Stage 5) / Fletcher 2005;
plate 2, fig. 16
Supplementary table 1. Continued.
Taxon / Higher classification / Age / Reference
Ellipshocephalus hoffi* / Ptychopariida / Ellipsocephalidae / late lower Cambrian
(Stage 4) / Geyer 1990;
plate 14, fig. 1
Kymataspis arenosa* / Ptychopariida / Ellipsocephalidae / late lower Cambrian
(Stage 4) / Geyer 1990;
plate 37, fig. 1
Termiella latifrons* / Ptychopariida / Ellipsocephalidae / late lower Cambrian
(Stage 4) / Geyer 1990;
plate 56, fig. 11
Strenuaeva inflata / Ptychopariida / Ellipsocephalidae / lower Cambrian
(Stage 4) / Cederström et al. 2011; fig. 12
Crassifimbra walcotti / Ptychopariida / Agraulidae / lower Cambrian
(upper Dyeran / Stage 4) / Palmer 1958;
plate 26, figs 13-15
Zacanthopsis palmeri / Corynexochida / Zacanthoididae / lower Cambrian
(upper Dyeran / Stage 4) / Hopkins and Webster 2009; figs 11.23-28
Redlichia forresti* / Redlichiida / Redlichiina / Redlichiidae / lower Cambrian
(Stage 4) / McNamara 1986;
figs 3-5
Ellipsocephalus sanctacrucensis / Ptychopariida / Ellipsocephalidae / lower Cambrian
(Dyeran / Stage 4) / Orlowski 1985;
p. 238
Nephrolenellus geniculatus / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(upper Dyeran / Stage 4) / Webster 2007;
fig. 14.6
Olenellus chiefensis / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(upper Dyeran / Stage 4) / Palmer 1998;
fig. 11.3
Olenellus gilberti / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(upper Dyeran / Stage 4) / Palmer 1998;
fig. 9.1
Mummaspis ?muralensis / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(lower Dyeran / Stage 4) / this study;
fig. 1a
Mummaspis occidens / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(lower Dyeran / Stage 4) / this study;
fig. 1b
Mummaspis truncatooculatus* / Redlichiida / Olenellina / Olenellidae / lower Cambrian
(lower Dyeran / Stage 4) / this study;
figs 1c,d
Fallotaspis sp.* / Redlichiida / Olenellina / Fallotaspididae / lower Cambrian (Montezuman) / Bergström 1973;
fig. 8b
Schmidtiellus sp.* / Redlichiida / Olenellina / Olenellidae / lower Cambrian / Bergström 1973;
p. 16
+ Eccaparadoxides cf. brachyrachis (= Eccaparadoxides mediterraneus see Dies-Alvarez et al. 2010; = Eccaparadoxides pradoanus in Esteve in press).
Supplementary figure 1. Complete enrolment (a, d-f) and ventral flexure (b, c) in Cambrian redlichiine (a, b) and olenelline (c-f) trilobites. (a)MPZ 2012/750, complete enrolment in the middle Cambrian (Drumian) paradoxidid Eccaparadoxides pradoanus in ventral view (see also Esteve et al. 2011, 2013); (b)MPZ 2012/747, ventral flexure in Eccaparadoxides pradoanus (see also Esteve et al. 2011, 2013) showing lateral overlap of the trunk pleurae (arrowheads); (c) FMNH PE57944, the early Cambrian (upper Dyeran) olenellid Nephrolenellus geniculatus in dorsal view (see also Webster 2007); (d) DMNH 16701a, the early Cambrian (upper Dyeran) olenellid Olenellus gilberti part in ventral view (see also Palmer 1998); (e) DMNH 16080 part, the early Cambrian (upper Dyeran) olenellid Olenellus chiefensis in ventral view (see also Palmer 1998); (e) DMNH 16080 counterpart. Scale bars = 5 mm. Abbreviations: ahr, articulating half ring; tl, terrace lines. Institutional abbreviations: MPZ, Museum of Palaeontology of Zaragoza (Zaragoza, Spain); DMNH, Denver Museum of Nature and Science (Denver, USA); FMNH, Field Museum Chicago (Chicago, USA). Photograph credit: (d-f), J. W. Hagadorn (DMNH); (c), M. Webster (University of Chicago).
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