Currently browsing: Items authored or edited by Robert Spicer

Li, Shu-Feng; Valdes, Paul J.; Farnsworth, Alex; Davies-Barnard, T.; Su, Tao; Lunt, Daniel J.; Spicer, Robert A.; Liu, Jia; Deng, Wei-Yu-Dong; Huang, Jian; Tang, He; Ridgwell, Andy; Chen, Lin-Lin and Zhou, Zhe-Kun (2021). Orographic evolution of northern Tibet shaped vegetation and plant diversity in eastern Asia. Science Advances, 7(5), article no. eabc7741.

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Bhatia, Harshita; Srivastava, Gaurav; Spicer, R. A.; Farnsworth, Alex; Spicer, T.E.V.; Mehrotra, R.C.; Paudayal, Khum N. and Valdes, Paul (2021). Leaf physiognomy records the Miocene intensification of the South Asia Monsoon. Global and Planetary Change, 196, article no. 103365.

Hazra, Taposhi; Hazra, Manoshi; Spicer, Robert A.; Spicer, Teresa E.V.; Mahato, Sumana; Bera, Subir; Kumar, Sanchita and Khan, Mahasin Ali (2021). Pliocene Albizia (Fabaceae) from Jharkhand, eastern India: reappraisal of its biogeography during Cenozoic in Southeast Asia. Palaeoworld (Early Access).

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Su, Tao; Spicer, Robert A.; Wu, Fei-Xiang; Farnsworth, Alexander; Huang, Jian; Del Rio, Cédric; Deng, Tao; Ding, Lin; Deng, Wei-Yu-Dong; Huang, Yong-Jiang; Hughes, Alice; Jia, Lin-Bo; Jin, Jian-Hua; Li, Shu-Feng; Liang, Shui-Qing; Liu, Jia; Liu, Xiao-Yan; Sherlock, Sarah; Spicer, Teresa; Srivastava, Gaurav; Tang, He; Valdes, Paul; Wang, Teng-Xiang; Widdowson, Mike; Wu, Meng-Xiao; Xing, Yao-Wu; Xu, Cong-Li; Yang, Jian; Zhang, Cong; Zhang, Shi-Tao; Zhang, Xin-Wen; Zhao, Fan and Zhou, Zhe-Kun (2020). A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet. Proceedings of the National Academy of Sciences, 117(52) pp. 32989–32995.

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Zolina, Anastasia; Golovneva, Lina and Spicer, Robert (2020). Latest Cretaceous (Maastrichtian) climate of the Koryak Upland of North-East Russia based on a quantitative analysis of a palaeo-polar flora. Palaeogeography, Palaeoclimatology, Palaeoecology, 560, article no. 109997.

Tang, He; Li, Shu-Feng; Su, Tao; Spicer, Robert A.; Zhang, Shi-Tao; Li, Shi-Hu; Liu, Jia; Lauretano, Vittoria; Witkowski, Caitlyn R.; Spicer, Teresa E.V.; Deng, Wei-Yu-Dong; Wu, Meng-Xiao; Ding, Wen-Na and Zhou, Zhe-Kun (2020). Early Oligocene vegetation and climate of southwestern China inferred from palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 560, article no. 109988.

Khan, Mahasin Ali; Hazra, Manoshi; Mahato, Sumana; Spicer, Robert A.; Roy, Kaustav; Hazra, Taposhi; Bandopadhaya, Manosij; Spicer, Teresa E.V. and Bera, Subir (2020). A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context. Review of Palaeobotany and Palynology, 283, article no. 104318.

Biswas, Anwesha; Bera, Meghma; Khan, Mahasin Ali; Spicer, R. A,; Spicer, T. E. V.; Acharya, Krishnendu and Bera, Subir (2020). Evidence of fungal decay in petrified legume wood from the Neogene of the Bengal Basin, India. Fungal Biology, 124(11) pp. 958–968.

Xiong, Zhongyu; Ding, Lin; Spicer, Robert A.; Farnsworth, Alexander; Wang, Xu; Valdes, Paul J.; Su, Tao; Zhang, Qinghai; Zhang, Liyun; Cai, Fulong; Wang, Houqi; Li, Zhenyu; Song, Peiping; Guo, Xudong and Yue, Yahui (2020). The early Eocene rise of the Gonjo Basin, SE Tibet: From low desert to high forest. Earth and Planetary Science Letters, 543, article no. 116312.

Ding, Wen-Na; Ree, Richard H.; Spicer, Robert A. and Xing, Yao-Wu (2020). Ancient orogenic and monsoon-driven assembly of the world's richest temperate alpine flora. Science, 369(6503) pp. 578–581.

Li, Shihu; Su, Tao; Spicer, Robert A; Xu, Congli; Sherlock, Sarah; Halton, Alison; Hoke, Gregory; Yimin, Tian; Zhang, Shitao; Zhou, Zhekun; Deng, Chenglong and Zhu, Rixiang (2020). Oligocene deformation of the Chuandian terrane in the SE margin of the Tibetan Plateau related to the extrusion of Indochina. Tectonics, 39(7), article no. e2019TC005974.

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Del Rio, Cédric; Wang, Teng-Xiang; Liu, Jia; Liang, Shui-Qing; Spicer, Robert A.; Wu, Fei-Xiang; Zhou, Zhe-Kun and Su, Tao (2020). Asclepiadospermum gen. nov., the earliest fossil record of Asclepiadoideae (Apocynaceae) from the early Eocene of central Qinghai-Tibetan Plateau, and its biogeographic implications. American Journal of Botany, 107(1) pp. 126–138.

Murray, Michelle; Soh, Wuu Kuang; Yiotis, Charilaos; Spicer, Robert A.; Lawson, Tracy and McElwain, Jennifer C. (2020). Consistent Relationship between Field-Measured Stomatal Conductance and Theoretical Maximum Stomatal Conductance in C₃ Woody Angiosperms in Four Major Biomes. International Journal of Plant Sciences, 181(1) pp. 142–154.

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Spicer, Robert A; Su, Tao; Valdes, Paul J; Farnsworth, Alexander; Wu, Fei-Xiang; Shi, Gongle; Spicer, Teresa E V and Zhou, Zhekun (2020). Why ‘the uplift of the Tibetan Plateau’ is a myth? National Science Review (Early access).

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Spicer, Robert A.; Farnsworth, Alexander and Su, Tao (2020). Cenozoic Topography, Monsoons and Biodiversity Conservation within the Tibetan Region: An Evolving Story. Plant Diversity (Early Access).

Spicer, Robert; Su, Tao; Valdes, Paul J.; Farnsworth, Alexander; Wu, Fei-Xiang; Shi, Gongle; Spicer, Teresa E. V. and Zhou, Zhekun (2020). The topographic evolution of the Tibetan Region as revealed by palaeontology. Palaeobiodiversity and Palaeoenvironments (Early access).

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Soh, Wuu Kuang; Yiotis, Charilaos; Murray, Michelle; Parnell, Andrew; Wright, Ian J.; Spicer, Robert A.; Lawson, Tracy; Caballero, Rodrigo and McElwain, Jennifer C. (2019). Rising CO₂ drives divergence in water use efficiency of evergreen and deciduous plants. Science Advances, 5(12), article no. eaax7906.

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Zhou, Z.-K.; Su, T. and Spicer, R. A. (2019). Understanding the evolution of biodiversity in Asia. Review of Palaeobotany and Palynology, 271, article no. 104107.

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Shuang-Xing, Guo; Spicer, Robert A.; Widdowson, Mike; Herman, Alexei B. and Domogatskaya, Ksenia V. (2019). The composition of the middle Miocene (15 Ma) Namling paleoflora, South Central Tibet, in the context of other Tibetan and Himalayan Floras. Review of Palaeobotany and Palynology, 271, article no. 104088.

Tang, He; Liu, Jia; Wu, Fei‐Xiang; Spicer, Teresa; Spicer, Robert A.; Deng, Wei‐Yu‐Dong; Xu, Cong‐Li; Zhao, Fan; Huang, Jian; Li, Shu‐Feng; Su, Tao and Zhou, Zhe‐Kun (2019). Extinct genus Lagokarpos reveals a biogeographic connection of Tibet with other regions in the Northern Hemisphere during the Paleogene. Journal of Systematics and Evolution, 57(6) pp. 670–677.

Valdes, Paul J.; Lin, Ding; Farnsworth, Alex; Spicer, Robert A.; Li, Shi-Hu and Tao, Su (2019). Comment on “Revised paleoaltimetry data show low Tibetan Plateau elevation during the Eocene”. Science, 365(6459), article no. eaax8474.

Khan, Mahasin Ali; Bera, Meghma; Spicer, Robert A.; Spicer, Teresa E. V. and Bera, Subir (2019). Floral diversity and environment during the middle Siwalik sedimentation (Pliocene) in the Arunachal sub-Himalaya. Palaeobiodiversity and Palaeoenvironments, 99(3) pp. 401–424.

Witkowski, C.R.; Lauretano, V.; Mayser, J.P.; Spicer, R.A.; Su, T.; Zhou, Z.-K.; Spicer, T.E.V.; Valdes, P.J.; Farnsworth, A. and Pancost, R.D. (2019). Cenozoic climate reconstructions associated with the formation of Tibet and the biodiversification of terrestrial ecosystems. In: Conference Proceedings, 29th International Meeting on Organic Geochemistry.

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Liu, Jia; Su, Tao; Spicer, Robert; Tang, He; Deng, Wei-Yu-Dong; Wu, Fei-Xiang; Srivastava, Gaurav; Spicer, Teresa; Van Do, Truong; Deng, Tao and Zhou, Zhe-Kun (2019). Biotic interchange through lowlands of Tibetan Plateau suture zones during Paleogene. Palaeogeography, Palaeoclimatology, Palaeoecology, 524 pp. 33–40.

Su, Tao; Spicer, Robert A.; Li, Shi-Hu; Xu, He; Huang, Jian; Sherlock, Sarah; Huang, Yong-Jiang; Li, Shu-Feng; Wang, Li; Jia, Lin-Bo; Deng, Wei-Yu-Dong; Liu, Jia; Deng, Cheng-Long; Zhang, Shi-Tao; Valdes, Paul J. and Zhou, Zhe-Kun (2019). Uplift, Climate and Biotic Changes at the Eocene-Oligocene Transition in Southeast Tibet. National Science Review, 6(3) pp. 495–504.

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Murray, Michelle; Soh, Wuu Kuang; Yiotis, Charilaos; Batke, Sven; Parnell, Andrew C.; Spicer, Robert A.; Lawson, Tracy; Caballero, Rodrigo; Wright, Ian J.; Purcell, Conor and McElwain, Jennifer C. (2019). Convergence in Maximum Stomatal Conductance of C₃ Woody Angiosperms in Natural Ecosystems Across Bioclimatic Zones. Frontiers in Plant Science, 10, article no. 558.

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Su, T.; Farnsworth, A.; Spicer, R. A.; Huang, J.; Wu, F-X.; Liu, J.; Li, S-F.; Xing, Y-W.; Huang, Y-J.; Deng, W-Y-D.; Tang, H.; Xu, C-L.; Zhao, F.; Srivastava, G.; Valdes, P. J.; Deng, T. and Zhou, Z-K. (2019). No high Tibetan Plateau until the Neogene. Science Advances, 5(3), article no. eaav2189.

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Khan, Mahasin Ali; Bera, Meghma; Spicer, Robert A.; Spicer, Teresa E.V. and Bera, Subir (2019). Palaeoclimatic estimates for a latest Miocene-Pliocene flora from the Siwalik Group of Bhutan: Evidence for the development of the South Asian Monsoon in the eastern Himalaya. Palaeogeography, Palaeoclimatology, Palaeoecology, 514 pp. 326–335.

Spicer, Robert; Valdes, Paul; Hughes, Alice; Yang, Jian; Spicer, Teresa; Herman, Alexei and Farnsworth, Alexander (2019). New insights into the thermal regime and hydrodynamics of the early Late Cretaceous Arctic. Geological Magazine (Early Access).

Khan, Mahasin Ali; Bera, Meghma; Spicer, Robert A.; Spicer, Teresa E.V. and Bera, Subir (2018). Evidence of simultaneous occurrence of tylosis formation and fungal interaction in a late Cenozoic angiosperm from the eastern Himalaya. Review of Palaeobotany and Palynology, 259 pp. 171–184.

Maslova, Natalia P.; Karasev, Eugeny V.; Kodrul, Tatiana M.; Spicer, Robert A.; Volkova, Lyudmila D.; Spicer, Teresa E. V.; Jin, Jianhua and Liu, Xiaoyan (2018). Sun and shade leaf variability in Liquidambar chinensis and Liquidambar formosana (Altingiaceae): implications for palaeobotany. Botanical Journal of the Linnean Society, 188(3) pp. 296–315.

Khan, Mahasin Ali; Bera, Meghma; Spicer, Robert A.; Spicer, Teresa E.V. and Bera, Subir (2017). First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications. Review of Palaeobotany and Palynology, 247 pp. 83–96.

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Spicer, Robert (2017). Tibet, the Himalaya, Asian monsoons and biodiversity - In what ways are they related? Plant Diversity, 39(5) pp. 233–244.

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Spicer, Robert; Yang, Jian; Herman, Alexei; Kodrul, Tatiana; Aleksandrova, Galina; Maslova, Natalia; Spicer, Teresa; Ding, Lin; Xu, Qiang; Shukla, Anumeha; Srivastava, Gaurav; Mehrotra, Rakesh; Liu, Xiao-Yan and Jin, Jian-Hua (2017). Paleogene monsoons across India and South China: Drivers of biotic change. Gondwana Research, 49 pp. 350–363.

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Herman, Alexei B.; Spicer, Robert A.; Aleksandrova, Galina N.; Yang, Jian; Kodrul, Tatiana M.; Maslova, Natalia P.; Spicer, Teresa E.V.; Chen, Gang and Jin, Jian-Hua (2017). Eocene–early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 479 pp. 126–137.

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François, Louis; Bruch, Angela A.; Utescher, Torsten; Spicer, Robert A. and Spicer, Teresa (2017). Reconstructing Cenozoic vegetation from proxy data and models – A NECLIME synthesis (Editorial). Palaeogeography, Palaeoclimatology, Palaeoecology, 467 pp. 1–4.

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Khan, Mahasin Ali; Spicer, Robert A.; Spicer, Teresa E.V. and Bera, Subir (2016). Occurrence of Shorea Roxburgh ex C. F. Gaertner (Dipterocarpaceae) in the Neogene Siwalik forests of eastern Himalaya and its biogeography during the Cenozoic of Southeast Asia. Review of Palaeobotany and Palynology, 233 pp. 236–254.

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Shukla, Anumeha; Mehrotra, Rakesh C.; Spicer, Robert A. and Spicer, Teresa E.V. (2016). Aporosa Blume from the paleoequatorial rainforest of Bikaner, India: Its evolution and diversification in deep time. Review of Palaeobotany and Palynology, 232 pp. 14–21.

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Kumar, Madhav; Spicer, Robert A.; Spicer, Teresa E. V.; Shukla, Anumeha; Mehrotra, R.C. and Monga, Priyanka (2016). Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India. Palaeogeography, Palaeoclimatology, Palaeoecology, 461 pp. 98–108.

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Hofmann, Christa-Charlotte; Spicer, Robert A.; Ahlberg, Anders and Herman, Alexei B. (2011). Scanning electron microscopy investigation of monads and tetrads of basal core eudicots from the Upper Cretaceous Vilui Basin, Siberia: Evidence for reticulate evolution. Review of Palaeobotany and Palynology, 167(3-4) pp. 196–211.

Daly, R. J.; Jolley, D. W. and Spicer, R. A. (2011). The role of angiosperms in Palaeocene arctic ecosystems: a palynological study from the Alaskan North Slope. Palaeogeography, Palaeoclimatology, Palaeoecology, 309(3-4) pp. 374–382.

Spicer, Robert A.; Bera, Subir; De Bera, Sreelekha; Spicer, Teresa E. V.; Srivastava, Gaurav; Mehrotra, Rakesh; Mehrotra, Naresh and Yang, Jian (2011). Why do foliar physiognomic climate estimates sometimes differ from those observed? Insights from taphonomic information loss and a CLAMP case study from the Ganges Delta. Palaeogeography, Palaeoclimatology, Palaeoecology, 302(3-4) pp. 381–395.

Jacques, Frédéric M. B.; Su, Tao; Spicer, Robert A.; Xing, Yaowu; Huang, Yongjiang; Wang, Weiming and Zhou, Zhekun (2011). Leaf physiognomy and climate: Are monsoon systems different? Global and Planetary Change, 76(1-2) pp. 56–62.

Teodorides, Vasilis; Mazouch, Petr; Spicer, Robert A. and Uhl, Dieter (2011). Refining CLAMP - investigations towards improving the Climate Leaf Analysis Multivariate Program. Palaeogeography, Palaeoclimatology, Palaeoecology, 299(1-2) pp. 39–48.

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Yang, Jian; Spicer, Robert A.; Spicer, Teresa E. V. and Li, Cheng-sen (2011). ‘CLAMP Online’: a new web-based palaeoclimate tool and its application to the terrestrial Paleogene and Neogene of North America. Palaeobiodiversity and Palaeoenvironments, 91(3) pp. 163–183.

Khan, Mahasin Ali; Ghosh, Ruby; Bera, Subir; Spicer, Robert A. and Spicer, T. E. V. (2011). Floral diversity during Plio-Pleistocene Siwalik sedimentation (Kimin Formation) in Arunachal Pradesh, India, and its palaeoclimatic significance. Palaeobiodiversity and Palaeoenvironments, 91(4) pp. 237–255.

Steart, D. C.; Spicer, R. A. and Bamford, M. K. (2010). Is southern Africa different? An investigation of the relationship between leaf physiognomy and climate in southern African mesic vegetation. Review of Palaeobotany and Palynology, 162(4) pp. 607–620.

Song, Xiao-Yan; Spicer, Robert; Yang, Jian; Yao, Yi-Feng and Li, Cheng-Sen (2010). Pollen evidence for an Eocene to Miocene elevation of central southern Tibet predating the rise of the High Himalaya. Palaeogeography, Palaeoclimatology, Palaeoecology, 297(1) pp. 159–168.

Herman, Alexei B. and Spicer, Robert A. (2010). Mid-Cretaceous floras and climate of the Russian high Arctic (Novosibirsk Islands, Northern Yakutiya). Palaeogeography, Palaeoclimatology, Palaeoecology, 295(3-4) pp. 409–422.

Spicer, R. A. and Herman, A. B. (2010). The late Cretaceous environment of the Arctic: A quantitative reassessment based on plant fossils. Palaeogeography, Palaeoclimatology, Palaeoecology, 295(3-4) pp. 423–442.

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Velasco-de León, Maria Patricia; Spicer, Robert A. and Steart, David C. (2010). Climatic reconstruction of two Pliocene floras from Mexico. Palaeobiodiversity and Palaeoenvironments, 90(2) pp. 99–110.

Spicer, Robert A. and Yang, Jian (2010). Quantification of uncertainties in fossil leaf aleoaltimetry: does leaf size matter? Tectonics, 29(TC6001) pp. 1–13.

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Coe, Angela; Argles, Thomas; Rothery, David and Spicer, Robert (2010). Geological Field Techniques. Chichester: Wiley Blackwell in association with the OU.

Spicer, R. A.; Valdes, P. J.; Spicer, T. E. V.; Craggs, H. J.; Srivastava, G.; Mehrotra, R. C. and Yang, J. (2009). New developments in CLAMP: Calibration using global gridded meteorological data. Palaeogeography, Palaeoclimatology, Palaeoecology, 283(1-2) pp. 91–98.

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Moiseeva, M. G.; Herman, A. B. and Spicer, R. A. (2009). Late Paleocene Flora of the Northern Alaska Peninsula: The Role of Transberingian Plant Migrations and Climatic Change. Palaeontological Journal, 43(10) pp. 1298–1308.

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Spicer, R. A.; Daly, R. J.; Jolley, D. W.; Herman, A. B.; Ahlberg, A. and Moiseeva, M. (2009). Climate and vegetation of the Selandian-Thanetian Paleocene Sagwon Section, Northern Alaska (Palaeolatitude 85°N). In: Climatic and Biotic Evenets of the Paleogene, 12-15 Jan 2009, Wellington, New Zealand.

Spicer, Robert A.; Ahlberg, Anders; Herman, Alexei B.; Hofmann, Christa-Charlotte; Raikevich, Michail; Valdes, Paul J. and Markwick, Paul J. (2008). The Late Cretaceous continental interior of Siberia: A challenge for climate models. Earth and Planetary Science Letters, 267(1-2) pp. 228–235.

Upchurch, G. R.; Spicer, R. A. and Leopold, E. B. (2007). The Life and career of Jack A. Wolfe (July 10, 1936 - August 12, 2005). In: Jarzen, David M.; Manchester, Steven R.; Retallack, Gregory J. and Jarzen, Susan A. eds. Advances in Angiosperm Paleobotany and Paleoclimatic Reconstruction, Volume 258. Courier Forschungsinstitut Senckenberg, pp. 11–19.

Yang, Jian; Wang, Yu-Fei; Spicer, Robert A.; Mosbrugger, Volker; Li, Cheng-Sen and Sun, Qi-Gao (2007). Climatic reconstruction at the Miocene Shanwang basin, China, using leaf margin analysis, CLAMP, coexistence approach, and overlapping distribution analysis. American Journal of Botany, 94(4) pp. 599–608.

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Spicer, R. A. (2007). Recent and Future Developments of CLAMP: Building on the Legacy of Jack A. Wolfe. In: Jarzen, David M.; Manchester, Steven R.; Retallack, Gregory J. and Jarzen, Susan A. eds. Advances in Angiosperm Paleobotany and Paleoclimatic Reconstruction, Volume 258. Courier Forschungsinstitut Senckenberg, pp. 109–118.

Spicer, Robert A.; Herman, Alexei B. and Kennedy, Elizabeth M. (2005). The sensitivity of CLAMP to taphonomic loss of foliar physiognomic characters. Palaios, 20(5) pp. 429–438.

Cripps, J. A.; Widdowson, M.; Spicer, R. A. and Jolley, D. W. (2005). Coastal ecosystem responses to late stage Deccan Trap volcanism: The post K-T boundary (Danian) palynofacies of Mumbai (Bombay), west India. Palaeogeography, Palaeoclimatology, Palaeoecology, 216(3-4) pp. 303–332.

Stainforth, D.A.; Aina, T.; Christensen, C.; Collins, M.; Faull, N.; Frame, D.J.; Kettleborough, J.A.; Knight, S.; Martin, A.; Murphy, J.M.; Piani, C.; Sexton, D.; Smith, L.A.; Spicer, R.A.; Thorpe, A.J. and Allen, M.R. (2005). Uncertainty in predictions of the climate response to rising levels of greenhouse gases. Nature, 433(7024) pp. 403–406.

Spicer, Robert A.; Herman, Alexei B. and Kennedy, Elizabeth M. (2004). Foliar physiognomic record of climatic conditions during dormancy: Climate Leaf Analysis Multivariate Program (CLAMP) and the cold month mean temperature. Journal of Geology, 112(6) pp. 685–702.

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Herman, A.B.; Moiseeva, M.G.; Spicer, R.A. and Ahlberg, A. (2004). Maastrichtian-Paleocene floras of northeastern Russia and North Alaska and floral changes at the Cretaceous-Paleogene boundary. Stratigraphy and Geological Correlation, 12(5) pp. 485–494.

Spicer, Robert A.; Harris, Nigel B.W.; Widdowson, Mike; Herman, Alexei B.; Guo, Shuangxing; Valdes, Paul J.; Wolfe, Jack A. and Kelley, Simon P. (2003). Constant elevation of southern Tibet over the past 15 million years. Nature, 421(6923) pp. 622–624.

Ahlberg, A.; Herman, A.B.; Raikevich, M.; Rees, P.M. and Spicer, R.A. (2002). Enigmatic late Cretaceous high palaeo-latitude lonestones in Chukotka, northeasternmost Asia. GFF, 124(4) pp. 197–199.

Kennedy, Elizabeth M.; Spicer, Robert A. and Rees, Peter M. (2002). Quantitative palaeoclimate estimates from Late Cretaceous and Paleocene leaf floras in the northwest of the South Island, New Zealand. Palaeogeography, Palaeoclimatology, Palaeoecology, 184(3-4) pp. 321–345.

Spicer, Robert A.; Ahlberg, Anders; Herman, Alexei B.; Kelley, Simon P.; Raikevich, Mikhail I. and Rees, Peter M. (2002). Palaeoenvironment and ecology of the middle Cretaceous Grebenka flora of northeastern Asia. Palaeogeography, Palaeoclimatology, Palaeoecology, 184(1-2) pp. 65–105.

Herman, A.B. and Spicer, R.A. (2002). Cretaceous flora from the Kukpowruk River, Northwestern Alaska. Palaeontological Journal(3) pp. 94–95.

Spicer, R.A. and Herman, A.B. (2001). The Albian-Cenomanian flora of the Kukpowruk River, western North Slope, Alaska: Stratigraphy, palaeofloristics, and plant communities. Cretaceous Research, 22(1) pp. 1–40.