Academic literature on the topic 'Palaeoecology'

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Journal articles on the topic "Palaeoecology"

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Hart, S. Fraser. "Archaeocyath palaeoecology." Paleontological Society Special Publications 6 (1992): 122. http://dx.doi.org/10.1017/s2475262200006821.

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A well preserved archaeocyath fauna occurs in the Forteau Formation in Southern Labrador, Canada. Following on from the confirmation that archaeocyatha are aspiculate calcified sponges, detailed ecological work is now being undertaken on this fauna, a representative of the first reefal ecosystem in the fossil record.One species, Metaldetes profundus, shows considerable variability in growth form, from open bowl-shaped forms in lagoonal settings, to a branching morphology in biohermal habitats. This species also appears to colonise a variety of substrate types and for this purpose often uses exothecal structures and holdfasts. M. profundus is also the dominant species numerically, comprising 80% of the fauna, except at the top of the bioherm horizon, where Archaeocyathus atlanticus becomes dominant. In contrast to previous studies' findings, bowl-shaped Metaldetes at the top of the bioherm horizon occupy the basal region of the bioherms, not the upper areas and provide a surface on which the bioherms can develop.The unique form of Retilamina amourensis endows it with the ability to stabilise substrates so facilitating the colonization of a substrate. It is more common at the base of bioherms, providing a surface on which other archaeocyaths can settle. The calcimicrobes Renalcis and Epiphyton also appear to have played a major role in the initiation of the bioherms, occurring as 3–5cm thick layers on erosion surfaces, within which small, juvenile, upright M. profundus sticks, <1cm in diameter, are found, surrounded and supported by the dense calcimicrobe aggregate.Digital 3-D analysis is being used to document the behaviour of the archaeocyaths, together with vertical and lateral zonation within the bioherms, especially with regard to the timing of calcimicrobe encrustation. Volumetric abundances of the archaeocyaths are also being calculated.There are small faunal composition changes over the area: Archaeosycon billingsi, a solitary stick-like form is more abundant in the west than in the east and Archaeocyathus atlanticus, another stick-like form occurs in dense clusters in lagoonal environments, elsewhere being solitary.
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Thorn, Vanessa. "Phytoliths in palaeoecology." Geology Today 23, no. 4 (July 2007): 153–57. http://dx.doi.org/10.1111/j.1365-2451.2007.00624.x.

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Donovan, Stephen K. "Beachcombing and palaeoecology." Geology Today 27, no. 1 (January 2011): 25–33. http://dx.doi.org/10.1111/j.1365-2451.2011.00779.x.

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Hicks, Sheila. "Aerobiology and palaeoecology." Aerobiologia 8, no. 2 (August 1992): 220–30. http://dx.doi.org/10.1007/bf02071630.

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Andrews, P. J. "Palaeoecology of Laetoli." Journal of Human Evolution 18, no. 2 (April 1989): 173–81. http://dx.doi.org/10.1016/0047-2484(89)90071-7.

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May, Robert M. "Palaeoecology and ecology." Trends in Ecology & Evolution 9, no. 9 (September 1994): 345. http://dx.doi.org/10.1016/0169-5347(94)90160-0.

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McDonald, H. Gregory. "Yukon to the Yucatan: Habitat partitioning in North American Late Pleistocene ground sloths (Xenarthra, Pilosa)." Journal of Palaeosciences 70, no. (1-2) (September 10, 2021): 237–52. http://dx.doi.org/10.54991/jop.2021.17.

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The late Pleistocene mammalian fauna of North America included seven genera of ground sloth, representing four families. This cohort of megaherbivores had an extensive geographic range in North America from the Yukon in Canada to the Yucatan Peninsula in Mexico and inhabited a variety of biomes. Within this latitudinal range there are taxa with a distribution limited to temperate latitudes while others have a distribution restricted to tropical latitudes. Some taxa are better documented than others and more is known about their palaeoecology and habitat preferences, while our knowledge of the palaeoecology of taxa more recently discovered remains limited. In order to better understand what aspects of their palaeoecology allowed their dispersal from South America, long–term success in North America and ultimately the underlying causes for their extinction at the end of the Pleistocene more information is needed. A summary overview of the differences in the palaeoecology of the late Pleistocene sloths in North America and their preferred habitats is presented based on different data sources.
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Edwards, Kevin J., H. R. Delcourt, and P. A. Delcourt. "For Palaeoecology Read Palynology." Journal of Biogeography 19, no. 2 (March 1992): 231. http://dx.doi.org/10.2307/2845511.

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Fortey, R. "The palaeoecology of trilobites." Journal of Zoology 292, no. 4 (April 2014): 250–59. http://dx.doi.org/10.1111/jzo.12108.

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ANDREWS, PETER. "PALAEOECOLOGY AND HOMINOID PALAEOENVIRONMENTS." Biological Reviews 71, no. 2 (May 1996): 257–300. http://dx.doi.org/10.1111/j.1469-185x.1996.tb00749.x.

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Dissertations / Theses on the topic "Palaeoecology"

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Witton, Mark P. "The palaeoecology and diversity of pterosaurs." Thesis, University of Portsmouth, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496607.

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The taxonomy and locomotory methods of pterosaurs have been extensively scrutinised for as long as pterosaurs themselves have been known, but comparatively little research has been conducted into their lifestyles and habits. Pterosaurs have largely been interpreted as Mesozoic equivalents of modem marine birds, principally foraging through flight-based methods of dip- or skim-feeding. Here, several lines of enquiry suggest that pterosaurs were considerably more ;ologically diverse that previously anticipated.
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Macpherson, Allan J. "Ecological resilience at semi-arid and temperate boundaries of the Mediterranean-type Fynbos Biome, South Africa, during the Holocene." Doctoral thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/25357.

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Mediterranean-type ecosystems are amongst the most vulnerable to global change. Threats from desertification are projected due to rapid expansion of adjacent semiarid systems. Changes in fire frequency and intensity can alter ecosystem composition and structure, and potentially facilitate transitions between alternative stable states. Given the outstanding biodiversity of the Mediterranean-type fynbos biome in the Greater Cape Floristic Region (GCFR) of South Africa, understanding of the longterm impacts of global change are particularly important. In this study, palaeoecological data are used to assess the effects of changes in climate, fire and land use on vegetation at the semi-arid and temperate margins of the fynbos biome. Previous palaeoecological studies have shown stable fynbos during the recent geologic past, which restricts interpretation of the long-term ecological processes that determine biome resilience. This study sourced sediment cores directly from presentday fynbos-succulent karoo (semi-arid) and fynbos-afrotemperate forest biome boundaries to emphasise ecological dynamics. Fossil pollen, spores and charcoal were extracted from radiocarbon dated sediment cores to provide proxies for vegetation, hydrology, large herbivore abundance and fire. Constrained hierarchical clustering (CONISS), optimal sequence splitting by least-squares, and Non-metric Multidimensional Scaling (NMDS) was applied to the fossil data to identify distinct assemblages in the record, and to further elucidate ecosystem trajectories through time. At the semi-arid boundary at Groenkloof (5,500 cal yrs BP - near present), decreased moisture and fire from 4,000-735 cal yrs BP allowed colonisation of fynbos by a possible 'no-analogue' community dominated by Asteraceae and Poaceae. From 735 cal yrs BP however, climatic amelioration allowed fynbos to re-establish. The system can therefore be viewed as resilient through a capacity for 'recovery' and persistence through turnover in internal composition of fynbos taxa. This sensitive response to climatic forcing reflects the dominant influence of physiological stress at the semiarid limits of Mediterranean-type ecosystems, as well as a Gleasonian type community composition with loose species associations. In contrast, ecosystem
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Saunders, Kate Marie. "Silurian dendroid graptolites : taxonomy, palaeoecology and biostratigraphy." Thesis, University of Portsmouth, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343388.

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Price, Gilbert J. "Pleistocene palaeoecology of the eastern Darling Downs." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16271/1/Gilbert_Price_Thesis.pdf.

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Several late Pleistocene fossil localities in the Kings Creek catchment, Darling Downs, southeastern Queensland, Australia, were examined in detail to establish an accurate, dated palaeoecological record for the region, and to test human versus climate change megafauna extinction hypotheses. Accelerator Mass Spectrometry (AMS 14C) and U/Th dating confirm that the deposits are late Pleistocene in age, but the dates obtained from the two methods are not in agreement. Fluvial depositional accumulation processes in the catchment reflect both high-energy channel and low-energy episodic overbank deposition. The most striking taphonomic observations for vertebrates in the deposits include: 1) low representation of post-cranial elements; 2) high degree of bone breakage; 3) variable abrasion but most identifiable bone elements with low to moderate degree of abrasion; 4) low rates of bone weathering; 5) low degree of carnivore bone modification; and 6) low degree of articulated or associated specimens. Collectively, those data suggest that the material was transported into the deposit from the surrounding proximal floodplain and that the assemblages reflect hydraulic sorting. A multifaceted palaeoecological investigation revealed significant habitat change between superposed assemblages of site QML796. The basal fossiliferous unit contained species that indicate the presence of a mosaic of habitats including riparian vegetation, vine thickets, scrubland, open and closed woodlands, and open grasslands during the late Pleistocene. Those woody and scrubby habitats contracted over the period of deposition so that by the time of deposition of the youngest horizon, the creek sampled a more open type environment. Sequential faunal horizons show a step-wise decrease in taxonomic diversity that cannot be explained by sampling or taphonomic bias. The decreasing diversity includes loss of some, but not all, megafauna and is consistent with a progressive local loss of megafauna in the catchment over an extended interval of time. Collectively, those data are consistent with a climatic cause of megafauna extinction, and no specific evidence was found to support human involvement in the local extinctions. Better dating of the deposits is critically important, as a secure chronology would have significant implications regarding the continent-wide extinction of the Australian megafauna.
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Price, Gilbert J. "Pleistocene palaeoecology of the eastern Darling Downs." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16271/.

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Several late Pleistocene fossil localities in the Kings Creek catchment, Darling Downs, southeastern Queensland, Australia, were examined in detail to establish an accurate, dated palaeoecological record for the region, and to test human versus climate change megafauna extinction hypotheses. Accelerator Mass Spectrometry (AMS 14C) and U/Th dating confirm that the deposits are late Pleistocene in age, but the dates obtained from the two methods are not in agreement. Fluvial depositional accumulation processes in the catchment reflect both high-energy channel and low-energy episodic overbank deposition. The most striking taphonomic observations for vertebrates in the deposits include: 1) low representation of post-cranial elements; 2) high degree of bone breakage; 3) variable abrasion but most identifiable bone elements with low to moderate degree of abrasion; 4) low rates of bone weathering; 5) low degree of carnivore bone modification; and 6) low degree of articulated or associated specimens. Collectively, those data suggest that the material was transported into the deposit from the surrounding proximal floodplain and that the assemblages reflect hydraulic sorting. A multifaceted palaeoecological investigation revealed significant habitat change between superposed assemblages of site QML796. The basal fossiliferous unit contained species that indicate the presence of a mosaic of habitats including riparian vegetation, vine thickets, scrubland, open and closed woodlands, and open grasslands during the late Pleistocene. Those woody and scrubby habitats contracted over the period of deposition so that by the time of deposition of the youngest horizon, the creek sampled a more open type environment. Sequential faunal horizons show a step-wise decrease in taxonomic diversity that cannot be explained by sampling or taphonomic bias. The decreasing diversity includes loss of some, but not all, megafauna and is consistent with a progressive local loss of megafauna in the catchment over an extended interval of time. Collectively, those data are consistent with a climatic cause of megafauna extinction, and no specific evidence was found to support human involvement in the local extinctions. Better dating of the deposits is critically important, as a secure chronology would have significant implications regarding the continent-wide extinction of the Australian megafauna.
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Sexton, Philip. "Foraminiferal taphonomy, palaeoecology and palaeoceanography of the Eocene." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416473.

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Hart, Sean Fraser. "Palaeoecology of Lower Cambrian and Lower Ordovician reefs." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361669.

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Emson, D. "The ecology and palaeoecology of diatom-duckweed relationships." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1462713/.

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This thesis focuses on the ecology and palaeoecology of diatom-duckweed relationships and utilises a combined experimental, ecological and palaeoecological approach. In particular, the study sought to determine the potential of the epiphytic diatom Lemnicola hungarica to be utilised as a proxy indicator of past dominance of duckweed (Lemna) in small ponds. To this end, contemporary sampling of epiphytic diatom assemblages from a variety of macrophytes (including multiple samples of free-floating plants) were collected from around the world and analysed for diatom epiphytes. In this study, even despite significant environmental gradients, L. hungarica showed a significant association with free-floating plants (including Lemna spp.) as did Sellaphora seminulum. To determine whether this relationship might be used to infer Lemna-dominance in sediment cores, diatom assemblages were analysed in surface sediments from English Lemna and non-Lemna covered ponds and in a core from a pond (Bodham Rail Pit, eastern England) known to have exhibited periods of Lemna-dominance in the past. In both cases, the data suggested that both L. hungarica and S. seminulum were excellent predictors of past Lemna-dominance. Finally, to infer the consequences of Lemna-dominance for the long-term biological structure and ecosystem function of the Bodham Rail Pit, the sedimentary remains of diatoms, plant pigments, and plant and animal macrofossils were enumerated from two sediment cores. These stratigraphic data were compared with the diatom Lemna-indicator metric which indicated three distinct Lemna cycles. Sediment core analyses suggested major compositional, structural and ecological changes brought about by the Lemna cycles, especially in the submerged macrophyte community and in fish-invertebrate relationships. These data reveal that duckweed proliferation, often brought about by eutrophication and terrestrialisation in ponds, can result in dramatic ecological changes due to a strong physical ecosystem engineering effect.
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Glenwright, Thomas Lane. "Diatom-based palaeoecology of Kowloon Bay, Hong Kong." Thesis, Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B42575576.

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Glenwright, T. Lane. "Diatom-based palaeoecology of Kowloon Bay, Hong Kong /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22032423.

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Books on the topic "Palaeoecology"

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Brenchley, Patrick J., and David A. T. Harper. Palaeoecology. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4684-1410-3.

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H, Birks Hilary, ed. Quaternary palaeoecology. Caldwell, N.J: Blackburn Press, 2004.

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Coetzee, J. A., and E. M. van Zinderen Barker. Palaeoecology of Africa. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203744512.

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1938-, Smykatz-Kloss Werner, and Felix-Henningsen Peter, eds. Palaeoecology of quaternary drylands. Berlin: Springer, 2004.

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Krasilov, Valentin Abramovich. Terrestrial palaeoecology and global change. Sofia, Bulgaria: Pensoft, 2003.

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Tony, Hachens, Miller Urve, and PACT Group, eds. Geology and palaeoecology for archaeologists. Louvain: European Study Groupon Physical, Chemical, Biological and Mathematical Techniques Applied to Archaeology, 1989.

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T, Harper D. A., ed. Palaeoecology: Ecosystems, environments, and evolution. London: Chapman & Hall, 1998.

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Hollingworth, Neville T. J. Zechstein reef fossils and their palaeoecology. London: The Palaeontological Association, 1988.

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Jane, Gray, ed. Aspects of freshwater palaeoecology and biogeography. Amsterdam: Elsevier, 1988.

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Ecology and palaeoecology of benthic foraminifera. Harlow, Essex, England: Longman Scientific and Technical, 1991.

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Book chapters on the topic "Palaeoecology"

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Brenchley, Patrick J., and David A. T. Harper. "Investigating the history of the biosphere." In Palaeoecology, 1–23. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_1.

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Brenchley, Patrick J., and David A. T. Harper. "Fossil terrestrial ecosystems." In Palaeoecology, 358–96. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_10.

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Brenchley, Patrick J., and David A. T. Harper. "Environmental controls on biotic distribution." In Palaeoecology, 24–65. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_2.

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Brenchley, Patrick J., and David A. T. Harper. "Taphonomy." In Palaeoecology, 66–102. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_3.

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Brenchley, Patrick J., and David A. T. Harper. "Adaptive morphology." In Palaeoecology, 103–47. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_4.

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Brenchley, Patrick J., and David A. T. Harper. "Trace fossils." In Palaeoecology, 148–78. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_5.

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Brenchley, Patrick J., and David A. T. Harper. "Fossils as environmental indicators." In Palaeoecology, 179–217. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_6.

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Brenchley, Patrick J., and David A. T. Harper. "Populations and communities." In Palaeoecology, 218–70. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_7.

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Brenchley, Patrick J., and David A. T. Harper. "Palaeobiogeography." In Palaeoecology, 271–302. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_8.

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Brenchley, Patrick J., and David A. T. Harper. "Evolutionary palaeoecology of the marine biosphere." In Palaeoecology, 303–57. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4684-1410-3_9.

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Conference papers on the topic "Palaeoecology"

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Jacobs, Megan, Andrew S. Gale, Andrew S. Gale, Jeremy A. F. Lockwood, Jeremy A. F. Lockwood, Dean Bullen, Dean Bullen, Steve Sweetman, and Steve Sweetman. "WHERE SAUROPODS ROAMED: USING GASTROLITHS TO INFER PALAEOGEOGRAPHY AND PALAEOECOLOGY." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-353386.

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Seuss, Barbara, Julia C. Friedel, and Michael R. W. Amler. "BIVALVES FROM THE PENNSYLVANIAN FINIS SHALE (VIRGILIAN) OF NORTH CENTRAL TEXAS – NOTES ON TAXONOMY, LIFE HABITS AND PALAEOECOLOGY." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-336434.

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Khosla, S. C. "Palaeoecology and Affinity of Ostracod Fauna from the Classic Localities of Lameta Formation of Jabalpur, Madhya Pradesh, India." In Proceedings of XXIII Indian Colloquium on Micropaleontalogy and Stratigraphy and International Symposium on Global Bioevents in Earth's History. Geological Society of India, 2015. http://dx.doi.org/10.17491/cgsi/2013/63313.

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Jacobs, Megan L., David M. Martill, and Steve Etches. "A DEEP-BODIED ICHTHYOSAUR (REPTILIA: ICHTHYOSAURIA) FROM THE UPPER JURASSIC KIMMERIDGE CLAY FORMATION OF DORSET, UK: IMPLICATIONS OF RIB CAGE ARCHITECTURE FOR ICHTHYOSAUR PALAEOECOLOGY." In 54th Annual GSA South-Central Section Meeting 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020sc-343307.

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