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18 results for “Death Valley”
Figure 1 in Acanthodian fauna from the Early Devonian (Emsian) of Death Valley, California
Figure 1. Map showing the position and geology of the fossil locality (Elliott and Ilyes 1996, fig. 1).
Figure 2. Ischnacanthiform acanthodian dermal elements. A in Acanthodian fauna from the Early Devonian (Emsian) of Death Valley, California
Figure 2. Ischnacanthiform acanthodian dermal elements. A, fin spine FMNH-PF14560; B, fin spine fragment FMNH-PF14561. C, D, dentigerous jaw bone FMNH-PF14562, labial view; boxed area in C is enlarged in D. Scale bars=0.5 mm in A–C, 0.1 mm in D. Arrow indicates rostral direction.
Figure 3. Acanthodian fin spines and scapulocoracoid. A-C in Acanthodian fauna from the Early Devonian (Emsian) of Death Valley, California
Figure 3. Acanthodian fin spines and scapulocoracoid. A-C, Bryantonchus peracutus: A, B complete spine FMNH-PF14564; C, proximal end of spine FMNH-PF14568. D, E, Machaeracanthus sp.: D, incomplete spine FMNH-PF14573, lateral view; E, abraded spine FMNH-PF14574, dorsoventrally compressed. F-H, acanthodian indet. scapulocoracoid: F, counterpart FMNH-PF14575; G, part FMNH-PF14576; H, outline sketch. Abbreviations: IEB, insertion-exsertion boundary; k/w, worn keel or wing; plac, placoderm plate; le, leading edge; te, trailing edge; teg, trailing edge groove. Scale bars=0.5 mm in A, C–E, 0.1 mm in B, F–H.
FIGURE 1 in A new species of tiger beetle (Coleoptera: Cicindelidae) from the Death Valley ecosystem
FIGURE 1. Dorsal habitus of C. timbisha, n. sp. (top row) males (A–B), females (C–D) (USA: California: Inyo Co.); C. senilis (bottom row), males (E–F), females (G–H) (USA: California: Solano Co.)
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.
Data from: Diabolical survival in Death Valley: recent pupfish colonization, gene flow, and genetic assimilation in the smallest species range on earth
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Data for: Thermochronologic constraints on the extensional history of the southeastern Black Mountains, Death Valley, CA
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Defining Relictual Biodiversity: Conservation Units in Speckled Dace (Leuciscidae: Rhinichthys osculus) of the Greater Death Valley Ecosystem
<p>The tips in the tree of life serve as foci for conservation and management, yet clear delimitations are masked by inherent variance at the species-population interface. Analyses using thousands of nuclear loci can potentially sort inconsistencies, yet standard categories applied to this parsing are themselves potentially conflicting and/or subjective [e.g., DPS (distinct population segments); DUs (Diagnosable Units-Canada); MUs (management units); SSP (subspecies); ESUs (Evolutionarily Significant Units); UIEUs (uniquely identified evolutionary units)]. One potential solution for consistent categorization is to create a comparative framework by accumulating statistical results from independent studies and evaluating congruence among data sets. Our study illustrates this approach in speckled dace (Leuciscidae: <i>Rhinichthys osculus</i>) endemic to two basins (Owens and Amargosa) in the Death Valley ecosystem. These fish persist in the Mojave Desert as isolated Plio-Pleistocene relicts and are of conservation concern, but lack formal taxonomic descriptions/designations. Double-digest RAD (ddRAD) methods identified 14,355 SNP loci across 10 populations (N=140). Species delimitation analyses [multispecies coalescent (MSC) and unsupervised machine learning (UML)] delineated four putative ESUs. <i>F</i><sub>ST</sub> outlier loci (N=106) were juxtaposed to uncover the potential for localized adaptations. We detected one hybrid population that resulted from upstream reconnection of habitat following contemporary pluvial periods, whereas remaining populations represent relics of ancient tectonism within geographically-isolated springs and groundwater-fed streams. Our study offers three salient conclusions: A blueprint for a multi-faceted delimitation of conservation units; a proposed mechanism by which criteria for intraspecific biodiversity can be potentially standardized; and a strong argument for the proactive management of critically-endangered Death Valley ecosystem fishes.</p>
FIGURE 4. Cicindela timbisha n in A new species of tiger beetle (Coleoptera: Cicindelidae) from the Death Valley ecosystem
FIGURE 4. Cicindela timbisha n. sp. in situ in dark muddy soil near a freshwater spring.
FIGURE 3 in A new species of tiger beetle (Coleoptera: Cicindelidae) from the Death Valley ecosystem
FIGURE 3. Aedeagus of C. timbisha, n. sp. (left) and C. senilis (right).
Defining Relictual Biodiversity: Conservation Units in Speckled Dace (Leuciscidae: Rhinichthys osculus) of the Greater Death Valley Ecosystem
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FIGURE 1. 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 1. 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, 10, 11. Cranidium, SUI 148651, dorsal, ventral, anterior, oblique, and left lateral views, x15. 2, 5, 8, 12. Cranidium, SUI 148652, dorsal, ventral, anterior, and left lateral views, x12. 3, 6, 9, 13. Cranidium, holotype, SUI 148653, dorsal, ventral, anterior, and right lateral views, x15. 14, 21, 24. Cranidium, SUI 148654, dorsal, left lateral, and anterior views, x12. 15, 18, 22. Cranidium, SUI 148655, dorsal, anterior, and right lateral views, x12. 16, 19. Cranidium, SUI 148656, dorsal and right lateral views, x12. 17, 20, 23. Cranidium, SUI 148657, dorsal, anterior, and right lateral views, x12. 25–27. Cranidium, SUI 148658, anterior, right lateral, and dorsal views, x30.
FIGURE 2 in A new species of tiger beetle (Coleoptera: Cicindelidae) from the Death Valley ecosystem
FIGURE 2. Frontal habitus of C. timbisha, n. sp., A) male, B) female.
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