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FIGURE 1 in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 1. Sketch map of the Baltic-Ladoga Klint. A. Geological map (modified after Sokolova 1971), insert is shown with a dashed rectangle. B. Detailed map of the upper course of the Khrevitsa River with the bryozoan-bearing locality (arrow).
FIGURE 2 in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 2. The composite scheme of the Upper Ordovician in the Leningrad region, including strata eroded before the Devonian (biozones after Suyarkova & Koren' 2009; age dates after Gradstein et al. 2020)
FIGURE 7. Massive trepostome bryozoans from the Khrevitsa Formation. A in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 7. Massive trepostome bryozoans from the Khrevitsa Formation. A. CNIGR museum №5/13403, Diplotrypa abnormis (Modzalevskaya, 1953), colony exterior on basal side, arrow shows a crinoid segment on which a colony started to grow. B–E. CNIGR museum №4/13403, Diplotrypa abnormis. B. View on basal side with first point of growing (arrow). C. Longitudinal section showing diaphragms in autozooecia (DiA) and mesozooecia (DiM). D. Tangential section. E. Longitudinal section of colony showing a radial budding. F–H. CNIGR museum №7/13403, Monotrypa jewensis Bassler, 1911. F. Longitudinal section. G. Tangential section. H. Longitudinal section.
FIGURE 5. Trepostome and cryptostome bryozoans from the Khrevitsa Formation. A–C in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 5. Trepostome and cryptostome bryozoans from the Khrevitsa Formation. A–C. CNIGR museum №11/13403, Amplexopora sp. A. Branch colony exterior (micro-CT). B. Longitudinal section showing diaphragms (Di) and cystiphragms (Cy). C. Tangential section showing acanthostyles on the ridges (arrow). D–G. CNIGR museum №1/13403, Nematotrypa robusta (Spjeldnaes, 1984). D. Tangential section showing abundant tektitozooecia (arrow). E. Longitudinal section showing hemiphragms (arrow). F. Tangential section showing paurostyles (Pa) and acanthostyles (Ac). G. Transverse section.
FIGURE 3. Prophyllodictya khrevitsa n in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 3. Prophyllodictya khrevitsa n. sp. from the Khrevitsa Formation. A_D. CNIGR museum № 13/13403. A. Colony exterior with transverse section of the branch (micro-CT). B. Tangential section (micro-CT). C. Colony exterior (micro-CT). D. Longitudinal section. E. №16/13403, transverse section showing mesotheca and lens-shaped form of branch. F. №14/13403, tangential section before ramification. G. №15/13403, transverse section showing mesotheca (arrow).
FIGURE 4. Funeralaspis deathvalleyensis n. gen. n in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 4. Funeralaspis deathvalleyensis n. gen. n. sp., from the Antelope Valley Formation (Dapingian), west flank of Funeral Mountains, Death Valley National Park, Inyo County, eastern California, USA. 1, 5, 9, 13, 15. Hypostome, SUI 148679, ventral, right lateral, posterior, dorsal, and anterior views, x20. 2, 6, 10, 14. Hypostome, SUI 148680, ventral, left lateral, posterior, and anterior views, x20. 3, 7, 11, 16, 18. Hypostome, SUI 148681, ventral, left lateral, posterior, dorsal, and anterior views, x25. 4, 8, 12, 17. Hypostome, SUI 148682, ventral, right lateral, posterior, and anterior views, x25.
FIGURE 7 in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 7. Diacanthaspis (s.l.) maquoketensis (Walter, 1924), from the Maquoketa Formation (lower Katian), Florenceville, Howard County, Iowa, USA. 1–4. Dorsal exoskeleton lacking pygidium, holotype, latex cast from external mold, SUI 9233, dorsal, oblique, anterior, and left lateral views, x7.5.
FIGURE 5. Funeralaspis deathvalleyensis n. gen. n in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 5. Funeralaspis deathvalleyensis n. gen. n. sp., from the Antelope Valley Formation (Dapingian), west flank of Funeral Mountains, Death Valley National Park, Inyo County, eastern California, USA. 1, 3, 5, 6. Thoracic segment, SUI 148683, dorsal, anterior, ventral, and right lateral views, x15. 2, 4, 7, 9, 12. Thoracic segment, SUI 148684, dorsal, ventral, anterior, posterior, and right lateral views, x15. 8, 10, 13, 14. Thoracic segment, SUI 148685, left lateral, dorsal, anterior, and posterior views, x15. 11, 16, 18, 21. Thoracic segments, SUI 148686, right lateral, dorsal, anterior, and posterior views, x20. 15, 17, 19, 20. Thoracic segment, SUI 148687, right lateral, anterior, dorsal, and posterior views, x15.
FIGURE 2. Funeralaspis deathvalleyensis n. gen. n in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 2. Funeralaspis deathvalleyensis n. gen. n. sp., from the Antelope Valley Formation (Dapingian), west flank of Funeral Mountains, Death Valley National Park, Inyo County, eastern California, USA. 1, 4, 7. Cranidium, SUI 148659, dorsal, anterior, and right lateral views, x15. 2, 5, 8, 9. Cranidium, SUI 148660, dorsal, anterior, left lateral, and oblique views, x15. 3, 6, 12, 16. Cranidium, SUI 148661, dorsal, anterior, oblique, and right lateral views, x15. 10, 11, 13. Cranidium, SUI 148662, dorsal, right lateral, and anterior views, x17. 14, 15, 20. Cranidium, SUI 148663, left lateral, dorsal, and anterior views, x17. 17–19. Cranidium, SUI 148664, dorsal, anterior, and left lateral views, x12. 21, 23, 24. Cranidium, SUI 148665, anterior, dorsal, and left lateral views, x12. 22, 25, 26. Cranidium, SUI 148666, anterior, left lateral, and dorsal views, x12.
FIGURE 3. Funeralaspis deathvalleyensis n. gen. n in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 3. Funeralaspis deathvalleyensis n. gen. n. sp., from the Antelope Valley Formation (Dapingian), west flank of Funeral Mountains, Death Valley National Park, Inyo County, eastern California, USA. 1, 3, 5. Right librigena, SUI 148667, external, ventrolateral, and internal views, x12. 2. Right librigena, SUI 148668, external view, x15. 4. Left librigena, SUI 148669, external view, x12. 6, 9, 10. Left librigena, SUI 148670, external, internal, and ventrolateral views, x15. 7. Right librigena, SUI 148671, external view, x15. 8. Right librigena, SUI 148672, external view, x20. 11. Right librigena, SUI 148673, external view, x15. 12. Right librigena, SUI 148674, external view, x15. 13. Left librigena, SUI 148675, external view, x15. 14. Right librigena, SUI 148676, external view, x15. 15. Left librigena, SUI 148677, external view, x15. 16. Right librigena, SUI 148678, external view, x15.
FIGURE 6. 1–33, 36–38, 41, 42. Funeralaspis deathvalleyensis n. gen. n in Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines
FIGURE 6. 1–33, 36–38, 41, 42. Funeralaspis deathvalleyensis n. gen. n. sp., from the Antelope Valley Formation (Dapingian), west flank of Funeral Mountains, Death Valley National Park, Inyo County, eastern California, USA. 1, 6–8, 14. Pygidium, SUI 148688, dorsal, posterior, anterior, ventral, and left lateral views, x15. 2–4. Pygidium, SUI 148689, dorsal, right lateral, and posterior views, x15. 5, 10, 12, 15, 18. Pygidium, SUI 148690, dorsal, right lateral, ventral, posterior, and anterior views, x15. 9, 13, 17. Pygidium, SUI 148691, dorsal, posterior, and left lateral views, x17. 11, 21, 22. Pygidium, SUI 148692, left lateral, posterior, and dorsal views, x20. 16, 19, 20. Pygidium, SUI 148693, dorsal, posterior, and right lateral views, x17. 23, 26, 30. Pygidium, SUI 148694, right lateral, dorsal, and posterior views, x25. 24, 27, 31. Pygidium, SUI 148695, dorsal, posterior, and right lateral views, x25. 25, 28, 29, 33. Pygidium and thoracic segments, SUI 148696, dorsal, right lateral, posterior, and ventral views, x15. 32, 36, 37. Pygidium, SUI 148697, dorsal, left lateral, and posterior views, x15. 38, 41, 42. Pygidium, SUI 148698, dorsal, left lateral, and posterior views, x15. 34, 35, 39, 40.?acidaspidine pygidium, SUI 148699, dorsal, ventral, posterior, and right lateral views, x15.
Did hard substrate taxa diversify prior to the Great Ordovician Biodiversification Event?
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Data from: Ecology, biofacies, biogeography and systematics of micromorphic lingulate brachiopods from the Ordovician (Darriwilian–Sandbian) of south-central China
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Data from: The early record of halysitid tabulate corals, and morphometrics of Catenipora from the Ordovician of north-central China
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Data from: Xianella: a new mat-forming calcified cyanobacterium from the Middle–Late Ordovician of North China
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Data from: Water vascular system architecture in an Ordovician ophiuroid
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Data from: Continental-scale biogeographic variation: provinces versus gradients in the Upper Ordovician of Laurentia
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Data from: New crinoids from the Baltic region (Estonia): fossil tip-dating phylogenetics constrains the origin and Ordovician–Silurian diversification of the Flexibilia (Echinodermata)
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Data from: A combined morphometric and phylogenetic revision of the late Ordovician brachiopod genera Eochonetes and Thaerodonta
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Data from: Linguliform brachiopods across a Cambrian–Ordovician (Furongian–Early Ordovician) biomere boundary: the Sunwaptan/Skullrockian North American stage boundary in the Wilberns and Tanyard Formations of central Texas
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