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Fig. 2 in Helminth Diversity In Teleost Fishes From The South Orkney Islands Region, West Antarctica

Fig. 2. Proportion (%) of helminth species parasitizing three teleost fishes from the South Orkney Islands area, West Antarctica on larval and adult stages.

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Fig. 1 in Helminth Diversity In Teleost Fishes From The South Orkney Islands Region, West Antarctica

Fig. 1. Proportion (%) of four parasite taxa in three fish species from the South Orkney Islands area, West Antarctica.

Рис. 1. Раковины Mya truncata (А–Г) (Белое море) и Laternula elliptica (А'–Г') (Зал. Прюдс): А, А' – обЩий вид; Б, Г' – внутреннЯЯ поверхность левых створок; В, В' – вид хондрофора со стороны дорсального краЯ; Г, Б' – внутреннЯЯ поверхность правых створок. ОбоЗначениЯ: пК – передний край раковины; ЗК – Задний край; дК – дорсальный край; м – макушка; мщ – макушечнаЯ (умбональнаЯ) Щель; Кс – концентрическаЯ скульптура; сКп – складки периостракума; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; син – синус; ОмЗ – отпечаток мускула-ЗамыкателЯ. Fig. 1. Shells of Mya truncata (А–Г) (White Sea) and Laternula elliptica (А'–Г') (Prydz Bay): A, A' – general view; Б, Г' – internal view of left valves; В, В' – dorsal view on chondrophores; Г, Б' – internal view of right valves. Notes: пК – anterior margin; ЗК – posterior margin; дК – dorsal margin; м – umbo; мщ – umbonal crack; Кс – concentric sculpture; сКп – periostracal wrinkles; хр – chondrophore; ппЛ – buttress; син – sinus; ОмЗ – trace of retractor muscle. in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 1. Раковины Mya truncata (А–Г) (Белое море) и Laternula elliptica (А'–Г') (Зал. Прюдс): А, А' – обЩий вид; Б, Г' – внутреннЯЯ поверхность левых створок; В, В' – вид хондрофора со стороны дорсального краЯ; Г, Б' – внутреннЯЯ поверхность правых створок. ОбоЗначениЯ: пК – передний край раковины; ЗК – Задний край; дК – дорсальный край; м – макушка; мщ – макушечнаЯ (умбональнаЯ) Щель; Кс – концентрическаЯ скульптура; сКп – складки периостракума; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; син – синус; ОмЗ – отпечаток мускула-ЗамыкателЯ. Fig. 1. Shells of Mya truncata (А–Г) (White Sea) and Laternula elliptica (А'–Г') (Prydz Bay): A, A' – general view; Б, Г' – internal view of left valves; В, В' – dorsal view on chondrophores; Г, Б' – internal view of right valves. Notes: пК – anterior margin; ЗК – posterior margin; дК – dorsal margin; м – umbo; мщ – umbonal crack; Кс – concentric sculpture; сКп – periostracal wrinkles; хр – chondrophore; ппЛ – buttress; син – sinus; ОмЗ – trace of retractor muscle.

Рис. 5. Дополнительные структуры, служаЩие укреплению Замочного краЯ и раковины у Laternula elliptica: А – дополнительнаЯ поддерживаюЩаЯ пластинка прикрывает макушечную Щель; Б – утолЩение ранее поврежденного краЯ раковины; В – пример воЗникновениЯ двух поддерживаюЩих пластинок. ОбоЗначениЯ: мщ – макушечнаЯ Щель; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; дпЛ – дополнительные пластинки; уКр – утолЩениЯ Задне-дорсального краЯ и краЯ сифонального ЗиЯниЯ. Fig. 5. Additional structures serving for consolidation of hinge margin and for restoration of shell edge in Laternula elliptica: А – the umbonal crack covered by additional buttress; Б – thickening of damaged edge; В – appearance of two supporting plates. Notes: мщ – umbonal crack; хр – chondrophore; ппЛ – buttress; дпЛ – additional supporting plate; уКр – thickening of posterior-dorsal margin. in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 5. Дополнительные структуры, служаЩие укреплению Замочного краЯ и раковины у Laternula elliptica: А – дополнительнаЯ поддерживаюЩаЯ пластинка прикрывает макушечную Щель; Б – утолЩение ранее поврежденного краЯ раковины; В – пример воЗникновениЯ двух поддерживаюЩих пластинок. ОбоЗначениЯ: мщ – макушечнаЯ Щель; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; дпЛ – дополнительные пластинки; уКр – утолЩениЯ Задне-дорсального краЯ и краЯ сифонального ЗиЯниЯ. Fig. 5. Additional structures serving for consolidation of hinge margin and for restoration of shell edge in Laternula elliptica: А – the umbonal crack covered by additional buttress; Б – thickening of damaged edge; В – appearance of two supporting plates. Notes: мщ – umbonal crack; хр – chondrophore; ппЛ – buttress; дпЛ – additional supporting plate; уКр – thickening of posterior-dorsal margin.

Рис. 4. ГеографическаЯ локалиЗациЯ современных (●) и фоссильных (○) находок Laternula elliptica в Антарктике; (■) – локалиЗациЯ находки фоссильной раковины Laternula synthetica в Новой Зеландии. Fig. 4. Geographical localization of the Recent (●) and fossil (○) records of Laternula elliptica in Antarctica; (■) – record of a fossil shell of Laternula synthetica in New Zealand. in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 4. ГеографическаЯ локалиЗациЯ современных (●) и фоссильных (○) находок Laternula elliptica в Антарктике; (■) – локалиЗациЯ находки фоссильной раковины Laternula synthetica в Новой Зеландии. Fig. 4. Geographical localization of the Recent (●) and fossil (○) records of Laternula elliptica in Antarctica; (■) – record of a fossil shell of Laternula synthetica in New Zealand.

Рис. 3. Фотографии Laternula elliptica, сделанные около cтанции «Прогресс», ВосточнаЯ Антарктида. L. elliptica на морском дне с медкими камнЯми или гравием, глубина 27 м (А); несколько сифональных отверстий L. elliptica над поверхностью мЯгких осадков вокруг голотурии Staurocucumis turqueti, глубина 27 м (В); раковина L. elliptica (длина около 110 мм) на снегу около майны сраЗу после иЗвлечениЯ иЗ воды (С); пустые раковины L. elliptica на морском дне, глубина 56 м (D); раковина L. elliptica (вид с дорсального краЯ) на мЯгких осадках с камнЯми, покрытыми иЗвестковыми водорослЯми, глубина 30 м (Е); пара сифональных отверстий L. elliptica на поверхности мЯгких осадков, глубина 27 м (F). Фотографии О. Савинкина (A, B, D–F) и В. Потина (С). Fig. 3. Photographs of Laternula elliptica taken near «Progress» Research Station (East Antarctica). Softshelled clam L. elliptica on sea bottom with small stowns or gravel, depth 27 m (A); several open siphons of L. elliptica above soft bottom sediments around holothurian Staurocucumis turqueti, depth 27 m (B); a shell of L. elliptica (length about 110 mm) on snow near a dive hole just after dragging out of water (C); empty shells of L. elliptica on seafloor, depth 56 m (D); a shell of Laternula elliptica (dorsal view) on soft deposits among stones, covering by Lithothamnion, depth 30 m (E); pair of siphonal opening of L. elliptica on surface of soft sediments, depth 27 m (F). Photographs are taken by O. Savinkin (A, B, D–F) and V. Potin (C). in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 3. Фотографии Laternula elliptica, сделанные около cтанции «Прогресс», ВосточнаЯ Антарктида. L. elliptica на морском дне с медкими камнЯми или гравием, глубина 27 м (А); несколько сифональных отверстий L. elliptica над поверхностью мЯгких осадков вокруг голотурии Staurocucumis turqueti, глубина 27 м (В); раковина L. elliptica (длина около 110 мм) на снегу около майны сраЗу после иЗвлечениЯ иЗ воды (С); пустые раковины L. elliptica на морском дне, глубина 56 м (D); раковина L. elliptica (вид с дорсального краЯ) на мЯгких осадках с камнЯми, покрытыми иЗвестковыми водорослЯми, глубина 30 м (Е); пара сифональных отверстий L. elliptica на поверхности мЯгких осадков, глубина 27 м (F). Фотографии О. Савинкина (A, B, D–F) и В. Потина (С). Fig. 3. Photographs of Laternula elliptica taken near «Progress» Research Station (East Antarctica). Softshelled clam L. elliptica on sea bottom with small stowns or gravel, depth 27 m (A); several open siphons of L. elliptica above soft bottom sediments around holothurian Staurocucumis turqueti, depth 27 m (B); a shell of L. elliptica (length about 110 mm) on snow near a dive hole just after dragging out of water (C); empty shells of L. elliptica on seafloor, depth 56 m (D); a shell of Laternula elliptica (dorsal view) on soft deposits among stones, covering by Lithothamnion, depth 30 m (E); pair of siphonal opening of L. elliptica on surface of soft sediments, depth 27 m (F). Photographs are taken by O. Savinkin (A, B, D–F) and V. Potin (C).

Рис. 2. Laternula elliptica: А – раковина вЗрослого моллюска иЗ морЯ Дейвиса, L=87 мм, вид сбоку; Б – вид с дорсальной стороны (по: Егорова [1982]); В – расположение пустых раковин Laternula elliptica в осыпаюЩемсЯ песчаном грунте на склоне подводного холма (по рисунку иЗ полевого дневника Б.И. Сиренко, ЗИН РАН); Г – наружные отверстиЯ вводного и выводного сифонов Laternula elliptica (King, 1832) на поверхности грунта. Fig. 2. Laternula elliptica: А – shell of adult mollusc from the Davis Sea, L=87 mm, lateral view; Б – dorsal view (after: Егорова [1982]); В – empty shells of Laternula elliptica in friable sand on a slope of underwater hill (after sketch in the field journal of Dr. B.I. Sirenko, Zool. Inst. RAS); Г – external openings of inhalant and exhalant siphons of Laternula elliptica on surface of bottom deposits. in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 2. Laternula elliptica: А – раковина вЗрослого моллюска иЗ морЯ Дейвиса, L=87 мм, вид сбоку; Б – вид с дорсальной стороны (по: Егорова [1982]); В – расположение пустых раковин Laternula elliptica в осыпаюЩемсЯ песчаном грунте на склоне подводного холма (по рисунку иЗ полевого дневника Б.И. Сиренко, ЗИН РАН); Г – наружные отверстиЯ вводного и выводного сифонов Laternula elliptica (King, 1832) на поверхности грунта. Fig. 2. Laternula elliptica: А – shell of adult mollusc from the Davis Sea, L=87 mm, lateral view; Б – dorsal view (after: Егорова [1982]); В – empty shells of Laternula elliptica in friable sand on a slope of underwater hill (after sketch in the field journal of Dr. B.I. Sirenko, Zool. Inst. RAS); Г – external openings of inhalant and exhalant siphons of Laternula elliptica on surface of bottom deposits.

Рис. 6. Ювенильные раковины Laternula elliptica: А1, А3 – левые створки, внешний вид, H×L=3.0×4.4 мм; А2 – вид со стороны дорсального краЯ на сдвоенные створки, обраЗуюЩие по Заднему краю ЗиЯние; А4 – Замок, соединЯюЩий фрагменты раЗрушенных створок (штриховка); Б1 – праваЯ створка, внешний вид, H×L=8.5×14.0 мм; Б2 – внутреннЯЯ поверхность правой створки. Фрагменты раковины вЗрослого моллюска (L=69.7 мм): В1 – вид со стороны дорсального краЯ; В2 – фрагмент правой створки, вид сбоку. ОбоЗначениЯ: ЗК – Задний край; дК – дорсальный край; сКп – складки периостракума; м – макушка; мщ – макушечнаЯ Щель; пр – продиссоконх; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; дпЛ – дополнительнаЯ пластинка; син – синус. Fig. 6. Juvenile shells of Laternula elliptica: A1, A3 – left valves, external view, H×L=3.0×4.4 mm; A2 – paired valves, dorsal view, showing gape through which the siphon project; A4 – hinge with chondrophore and buttress, internal view; Б1– right valve, external view, H×L=8.5×14.0 mm; Б2 – right valve, internal view. Adult shell (L=69.7 мм): B1 – fragment of right valve, dorsal view; B2 – fragment of right valve, lateral view on umbo. Notes: ЗК – posterior margin; дК – dorsal margin; сКп – periostracal wrinkles; м – umbo; мщ – umbonal crack; пр – prodissoconch; хр – chondrophore; ппЛ – buttress; дпЛ – additional supporting plate; син – sinus. in Species of warm-water origin Laternula elliptica (King, 1832) (Mollusca: Bivalvia: Laternulidae), a widespread mollusk in recent Antarctica

Рис. 6. Ювенильные раковины Laternula elliptica: А1, А3 – левые створки, внешний вид, H×L=3.0×4.4 мм; А2 – вид со стороны дорсального краЯ на сдвоенные створки, обраЗуюЩие по Заднему краю ЗиЯние; А4 – Замок, соединЯюЩий фрагменты раЗрушенных створок (штриховка); Б1 – праваЯ створка, внешний вид, H×L=8.5×14.0 мм; Б2 – внутреннЯЯ поверхность правой створки. Фрагменты раковины вЗрослого моллюска (L=69.7 мм): В1 – вид со стороны дорсального краЯ; В2 – фрагмент правой створки, вид сбоку. ОбоЗначениЯ: ЗК – Задний край; дК – дорсальный край; сКп – складки периостракума; м – макушка; мщ – макушечнаЯ Щель; пр – продиссоконх; хр – хондрофор; ппЛ – поддерживаюЩаЯ пластинка; дпЛ – дополнительнаЯ пластинка; син – синус. Fig. 6. Juvenile shells of Laternula elliptica: A1, A3 – left valves, external view, H×L=3.0×4.4 mm; A2 – paired valves, dorsal view, showing gape through which the siphon project; A4 – hinge with chondrophore and buttress, internal view; Б1– right valve, external view, H×L=8.5×14.0 mm; Б2 – right valve, internal view. Adult shell (L=69.7 мм): B1 – fragment of right valve, dorsal view; B2 – fragment of right valve, lateral view on umbo. Notes: ЗК – posterior margin; дК – dorsal margin; сКп – periostracal wrinkles; м – umbo; мщ – umbonal crack; пр – prodissoconch; хр – chondrophore; ппЛ – buttress; дпЛ – additional supporting plate; син – sinus.

Fig. 8 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 8. The camenellan tommotiid Dailyatia sp. 1 A sclerites and fragments from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Holyoake Range, Transantarctic Mountains, East Antarctica. A. A sclerite, NRM X10006, apical (A1), anterior (A2), oblique posterior (A3), and posterior (A4) views, magnification of radial plicae on the lateral field (A5), magnification of single plica showing the densely stacked growth series of the radial plicae (A6). B. Fragment of A sclerite anterior field, NRM X10007, general view (B1), oblique view showing cross section of plicae (B2). C. Fragment of A sclerite anterior field, NRM X10008, top of specimen (C1), general view (C2), detail showing plicae (C3). D. Fragment of A sclerite with partial lateral and anterior field, NRM X10009. E. Fragment of sclerite lateral field, NRM X10010. F. Fragment of A sclerite lateral field, NRM X10011. G. Fragment of unknown sclerite type, with chaotically distributed plicae, NRM X10012, general view (G1), detail (G2). Scale bars 200 µm.

Fig. 11. The tommotiid Shetlandia multiplicata Wrona, 2004, unknown type sclerite fragments from the Cambrian Series 2, Stages 3, 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 11. The tommotiid Shetlandia multiplicata Wrona, 2004, unknown type sclerite fragments from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Holyoake Range, Transantarctic Mountains, East Antarctica. A. NRM X10020, general view (A1), detail showing arched growth series (A2). B. NRM X10021, general view (B1), detail of broken margin (B2). C. NRM X10022, general view (C1), detail of comarginal ribs and broken edge (C2). D. NRM X10023. E. NRM X10024. Scale bars 200 µm, except B2, 100 µm. A–C taken with backscattered electron detector.

Fig. 5 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 5. The camenellan tommotiid Dailyatia icari sp. nov. C1 sclerites and sclerite fragments from the lower Cambrian Schneider Hills limestone, Schneider Hills, Argentina Range, East Antarctica. A. Dextral sclerite, KUMIP 585059, apical view (A1), view of dorsal (A2) and ventral (A3) surfaces, view of distal (A4) and proximal (A5) edges. B. Sinistral sclerite, KUMIP 585060, apical view (B1), oblique view of proximal edge and dorsal surface (B2), oblique view of distal edge and ventral surface (B3), view of distal edge (B4). C. Dextral sclerite, KUMIP 585061, dorsal (C1), apical (C2), and oblique dextral (C3) views. D. Dextral sclerite, KUMIP 585062, apical (D1), apical-dorsal (D2), ventral (D3), and lateral (D4) views. E. Large fragment from unknown sclerite type, KUMIP 585063. F. Sclerite of unknown chirality, KUMIP 585064, apical (F1) and lateral (F2) views. G. Sclerite fragment from unknown sclerite type, KUMIP 585065, detail showing distinctive pseudoplicae (G1), general view (G2). H. Sclerite of unknown chirality, KUMIP 585066, detail of apertural margin (H1), oblique views of the aperture (H2, H3). I. Fragment of unknown sclerite type showing pseudoplicae, KUMIP 585067. Scale bars 200 µm.

Fig. 2 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 2. Stratigraphic columns of the sampled sections in the Holyoake Range (HRA) and Churchill Mountains (CM2). Grain size: B, boundstone; G, grainstone; M, mudstone; P, packstone; W, wackestone.

Fig. 1. A in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 1. A. Topographic map of the Central Transantarctic Mountains (adapted from the USGS 2008) with the main geographic features and the sites visited by the Kansas University expeditions (study areas marked by section names GM, 87-L2, M, H, S). The locality GM is the type locality for Dailyatia braddocki, which is close to the location of the CM2 section. The locality M is the type locality of Dailyatia odyssei). B. The area of the Churchill Mountains visited by the Swedish-Australian expedition, showing the location of the CM2 section. C. The area of the Holyoake Range visited by the Swedish-Australian expedition, showing the location of the HRA section. D. Overview of Antarctica showing the extent of the Transantarctic Mountains, including the the location of the Argentina Range, and IC (location on sections unknown) in the Schneider Hills (sampled by the Kansas Expeditions).

Fig. 10. The tommotiid Kennardiidae indet. from the Cambrian Series 2, Stages 3, 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 10. The tommotiid Kennardiidae indet. from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Holyoake Range, Transantarctic Mountains, East Antarctica. A. Symmetrical first sclerite type, KUMIP 585077, apical view (A1), oblique view of posterior field (A2), lateral field (A3). B. Third sclerite type, KUMIP 585078, apical (B1) and lateral (B2) views. C. Third sclerite type, KUMIP 585079, apical view (C1), ventral side (C2), dorsal side (C3). D. Third sclerite type, KUMIP 585080, ventral side (D1), apical view (D2). E. Third sclerite type, KUMIP 233002, apical view (E1), detail of dorsal side (E2), detail of ventral side (E3), ventral side (E4). F. Third type of sclerite, KUMIP 585081, ventral side (F1), detail showing plicae on ventral surface (F2), distal edge (F3). G. Second type of sclerite, KUMIP 585082, apical view (G1), oblique view of posterior field (G2), lateral field (G3). H. Third type of sclerite, KUMIP 585083, posterior side (H1), distal edge (H2), apical view (H3). I. Third type of sclerite, KUMIP 585084, ventral side (I1), detail showing plicae on the ventral surface (I2). Scale bars 200 µm, except E2, E3, I2, 100 µm.

Fig. 7. The camenellan tommotiids from from the Cambrian Series 2, Stages 3, 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 7. The camenellan tommotiids from from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Transantarctic Mountains, East Antarctica. Dailyatia braddocki Evans and Rowell, 1990, Churchill Mountains (A, B), Dailyatia decobruta Betts in Betts et al., 2019, Holyoake Range (C–F), and Dailyatia cf. odyssei, Holyoake Range (G–I). A. C sclerite, NRM X10001, ventral view (A1), detail showing fold in the margin of the ventral field (A2). B. Sclerite of unknown chirality, NRM X10002, dorsal view (B1), detail showing apex (B2). C. Dextral C sclerite, KUMIP 585071, details showing micro-ornament on the anterior-lateral (C1) and the posterior (C3) fields, apical view (C2). D. Dextral C sclerite, KUMIP 585072, apical view (D1), view of proximal edge and dorsal field (D2). E. Sclerite of unknown chirality, KUMIP 585073, oblique view of ventral field (E1), view of apical area showing perforated apex (E2). F. Sclerite of unknown chirality, KUMIP 585074, dorsal (F1) and oblique apical (F2) views. G. Dextral C sclerite, NRM X10003, view of broken dorsal field (G1), detail showing fine growth series (G2), apex (G3), oblique basal view showing plicae at distal edge (G4). H. Sinistral C sclerite, NRM X10004, apical view (H1), oblique view of distal edge and part of ventral field (H2). I. Unknown sclerite type, NRM X10005, ventral view (I1), detail showing fine growth series (I2). Scale bars 200 µm, except E2, 50 µm.

Fig. 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 4. The camenellan tommotiid Dailyatia icari sp. nov. A sclerites from the lower Cambrian Schneider Hills limestone, Schneider Hills, Argentina Range, Antarctica. A. KUMIP 585054, view of anterior field (A1), enlarged view of the anterior apical area (A2), oblique view of the lateral field (A3), apical view with anterior to the top (A4). B. KUMIP 585055, anterior field of broken sclerite. C. KUMIP 585056 anterior field of broken sclerite. D. KUMIP 585057, view of anterior field (D1), apical view with anterior to the top (D2), lateral view (D3). E. KUMIP 585058, view of anterior field (E1), apical view with anterior to the top (E2). Scale bars 200 µm.

Fig. 3 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 3. Palaeobiogeographic maps of the distribution of Dailyatia and other camenellan tommotiids from East Gondwana (dark grey). New occurrences described in this paper in bold. Maps show the Cambrian (A) Terreneuvian Series to basal Series 2, Stage 3 (i.e., upper range of the Micrina etheridgei Zone for South Australia, Betts et al. 2016, 2017) and (B) Series 2 (from the base of the Dailyatia odyssei Zone for South Australia, Betts et al. 2016, 2017). Data for previous occurrences: 1 Laurie 1986; 2 Skovsted et al. 2015; 3 Betts et al. 2016; 4 Betts et al. 2017; 5 Betts et al. 2019; 6 Evans and Rowell 1990; 7 Wrona 2004. Abbreviations: CTM, Central Transantarctic Mountains; KGI, King George Island; AR, Argentina Range. Map adapted from Torsvik and Cocks (2013) and Yang et al. (2015).

Fig. 9. The camenellan tommotiid from the Cambrian Series 2, Stages 3, 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 9. The camenellan tommotiid from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Transantarctic Mountains, East Antarctica. Dailyatia sp. 1, C sclerites and indeterminate fragments, Holyoake Range and Churchill Mountains (A–G) and Dailyatia braddocki Evans and Rowell, 1990, Churchill Mountains (H, I). A. Dextral C sclerite, NRM X10013, apical view (A1), dorsal field (A2), proximal edge (A4), distal edge (A3), ventral field ( A5), detail showing broken apex (A6). B. Dextral C sclerite, NRM X10014, oblique view of distal edge and dorsal field (B1), oblique view of proximal edge and ventral field (B2), and apical view (B3). C. Sinistral C sclerite, NRM X10015, apical view (C1), oblique view of proximal edge and dorsal →

Fig. 6 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics

Fig. 6. The camenellan tommotiid Dailyatia icari sp. nov. C2 sclerites from the lower Cambrian Schneider Hills limestone, Schneider Hills, Argentina Range, East Antarctica. A. KUMIP 585068, apical (A1), oblique lateral (A2), ventral (A3), lateral (A4), and dorsal (A5) views, detail of pustulose ornament on the central surface of A1 (A6). B. KUMIP 585069, apical (B1), lateral (B2), and ventral (B3) views. C. KUMIP 585070, apical (C1), lateral-dorsal (C2), ventral (C3), lateral (C4), and dorsal (C5) views. Scale bars 200 µm, except A6, 100 µm.