Foliar physiognomic climate estimates for the Late Cretaceous (Cenomanian–Turonian) Lark Quarry fossil flora, central-western Queensland, Australia
Tamara L. Fletcher A B C , Patrick T. Moss B and Steven W. Salisbury A
+ Author Affiliations
- Author Affiliations
A School of Biological Sciences, The University of Queensland, Brisbane, Qld 4072, Australia.
B Climate Research Group, School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, Qld 4072, Australia.
C Corresponding author. Email: t.fletcher1@uq.edu.au
Australian Journal of Botany 61(8) 575-582 https://doi.org/10.1071/BT13197
Submitted: 6 August 2013 Accepted: 3 December 2013 Published: 21 March 2014
Abstract
Although there is a broad knowledge of Cretaceous climate on a global scale, quantitative climate estimates for terrestrial localities are limited. One source of terrestrial palaeoproxies is foliar physiognomy. The use of foliar physiognomy to explore Cretaceous assemblages has been limited, and some of its potential sources of error have not been fully explored. Although museum collections house a wealth of material, collection bias toward particular taxa or preservation qualities of specimens further magnifies existing taphonomic bias to cold temperatures. As a result, specific collection for foliar physiognomy can be necessary. Here, we conduct three foliar physiognomic analyses on the early Late Cretaceous Lark Quarry flora and assess the results in the context of other proxies from the same formation. Our results suggest that the climate at the Cenomanian–Turonian boundary in central western Queensland was warm and had high precipitation (leaf-area analysis: 1321 mm + 413 mm – 315 mm mean annual precipitation; leaf-margin analysis: 16.4°C mean annual temperature, 5.3°C binomial sample error; climate leaf-analysis multivariate program: 16 ± 2°C for mean annual temperature, 9-month growth season, 1073 ± 483 mm growth-season precipitation). Our analysis also gave higher mean annual temperature estimates than did a previous analysis by climate leaf-analysis multivariate program, based on museum collections for the Winton Formation.
References
Barron EJ (1983) A warm, equable Cretaceous: the nature of the problem. Earth-Science Reviews 19, 305–338.| A warm, equable Cretaceous: the nature of the problem.Crossref | GoogleScholarGoogle Scholar |
Bose NM (1955) Some Tertiary plant remains from Queensland, Australia. Botaniska Notiser 108, 381–390.
Burnham RJ, Pitman NCA, Johnson KR, Wilf P (2001) Habitat-related error in estimating temperatures from leaf margins in a humid tropical forest. American Journal of Botany 88, 1096–1102.
| Habitat-related error in estimating temperatures from leaf margins in a humid tropical forest.Crossref | GoogleScholarGoogle Scholar | 11410475PubMed |
Cain SA, Castro GM de O (1959) ‘Manual of vegetation analysis.’ (Haper and Row: New York)
Clarke LJ, Jenkyns HC (1999) New oxygen isotope evidence for long-term Cretaceous climatic change in the southern hemisphere. Geology 27, 699–702.
| New oxygen isotope evidence for long-term Cretaceous climatic change in the southern hemisphere.Crossref | GoogleScholarGoogle Scholar |
Clifford HT, Dettmann ME (2005) First record from Australia of the Cretaceous fern genus Tempskya and the description of a new species, T. judithae. Review of Palaeobotany and Palynology 134, 71–84.
| First record from Australia of the Cretaceous fern genus Tempskya and the description of a new species, T. judithae.Crossref | GoogleScholarGoogle Scholar |
De Lurio JL, Frakes LA (1999) Glendonites as a paleoenvironmental tool: implications for early Cretaceous high latitude climates in Australia. Geochimica et Cosmochimica Acta 63, 1039–1048.
| Glendonites as a paleoenvironmental tool: implications for early Cretaceous high latitude climates in Australia.Crossref | GoogleScholarGoogle Scholar |
Dettmann M, Playford G (1969) Palynology of the Australian Cretaceous. In ‘Stratigraphy and palaeontology. Essays in honour of Dorothy Hill’. (Ed. KSW Campbell) pp. 174–210. (Australian National University Press: Canberra)
Dettmann ME, Clifford HT (2000) Gemmae of the Marchantiales from the Winton Formation (mid-Cretaceous), Eromanga Basin, Queensland. Memoirs of the Queensland Museum 45, 285–292.
Dettmann ME, Clifford HT, Peters M (2009) Lovellea wintonensis gen. et sp. nov.: Early Cretaceous (late Albian), anatomically preserved, angiospermous flowers and fruits from the Winton Formation, western Queensland, Australia. Cretaceous Research 30, 339–355.
| Lovellea wintonensis gen. et sp. nov.: Early Cretaceous (late Albian), anatomically preserved, angiospermous flowers and fruits from the Winton Formation, western Queensland, Australia.Crossref | GoogleScholarGoogle Scholar |
Dettmann ME, Molnar RE, Douglas JG, Burger D, Fielding C, Clifford HT, Francis J, Jell P, Rich T, Wade M, Rich PV, Pledge N, Kemp A, Rozefelds A (1992) Australian Cretaceous terrestrial faunas and floras: biostratigraphic and biogeographic implications. Cretaceous Research 13, 207–262.
| Australian Cretaceous terrestrial faunas and floras: biostratigraphic and biogeographic implications.Crossref | GoogleScholarGoogle Scholar |
Fletcher TL, Greenwood DR, Moss PT, Salisbury SW (in press) Palaeoclimate of the Late Cretaceous (Cenomanian–Turonian) portion of the Winton Formation, central western Queensland: new observations based on CLAMP and bioclimatic analysis. Palaios
Frakes LA, Krassay AA (1992) Discovery of probable ice-rafting in the Late Mesozoic of the Northern Territory and Queensland. Australian Journal of Earth Sciences 39, 115–119.
| Discovery of probable ice-rafting in the Late Mesozoic of the Northern Territory and Queensland.Crossref | GoogleScholarGoogle Scholar |
Gray ARG, McKillop M, MeKellar JL (2002) Eromanga Basin stratigraphy. In ‘Geology of the Cooper and Eromanga Basins, Queensland. Vol. 1’. (Ed. JJ Draper) pp. 30–56. (Department of Natural Resources and Mines: Brisbane)
Greenwood DR (1992) Taphonomic constraints on foliar physiognomic interpretations of Late Cretaceous and tertiary palaeoeclimates. Review of Palaeobotany and Palynology 71, 149–190.
| Taphonomic constraints on foliar physiognomic interpretations of Late Cretaceous and tertiary palaeoeclimates.Crossref | GoogleScholarGoogle Scholar |
Greenwood DR (2005) Leaf margin analysis: taphonomic constraints. Palaios 20, 498–505.
| Leaf margin analysis: taphonomic constraints.Crossref | GoogleScholarGoogle Scholar |
Greenwood DR (2007) North American Eocene leaves and climates: from Wolfe and Dilcher to Burnham and Wilf. Courier Forschungsinstitut Senckenberg 258, 95–108.
Greenwood DR, Archibald SB, Mathewes RW, Moss PT (2005) Fossil biotas from the Okanagan Highlands, southern British Columbia and northeastern Washington State: climates and ecosystems across an Eocene landscape. Canadian Journal of Earth Sciences 42, 167–185.
| Fossil biotas from the Okanagan Highlands, southern British Columbia and northeastern Washington State: climates and ecosystems across an Eocene landscape.Crossref | GoogleScholarGoogle Scholar |
Greenwood DR, Moss PT, Rowett AI, Vadala AJ, Keefe RL (2003) Plant communities and climate change in southeastern Australia during the early Paleogene. Geological Society of America Special Papers 369, 365–380.
Greenwood DR, Wilf P, Wing SL, Christophel DC (2004) Paleotemperature estimation using leaf-margin analysis: is Australia different? Palaios 19, 129–142.
| Paleotemperature estimation using leaf-margin analysis: is Australia different?Crossref | GoogleScholarGoogle Scholar |
Gregory RT, Douthitt CB, Duddy IR, Rich PV, Rich TH (1989) Oxygen isotopic composition of carbonate concretions from the lower Cretaceous of Victoria, Australia: implications for the evolution of meteoric waters on the Australian continent in a paleopolar environment. Earth and Planetary Science Letters 92, 27–42.
| Oxygen isotopic composition of carbonate concretions from the lower Cretaceous of Victoria, Australia: implications for the evolution of meteoric waters on the Australian continent in a paleopolar environment.Crossref | GoogleScholarGoogle Scholar |
Gregory-Wodzicki KM (2000) Relationships between leaf morphology and climate, Bolivia: implications for estimating paleoclimate from fossil floras. Paleobiology 26, 668–688.
| Relationships between leaf morphology and climate, Bolivia: implications for estimating paleoclimate from fossil floras.Crossref | GoogleScholarGoogle Scholar |
Grein M, Utescher T, Wilde V, Roth-Nebelsick A (2011) Reconstruction of the middle Eocene climate of Messel using palaeobotanical data. Neues Jahrbuch für Geologie und Palaontologie. Abhandlungen 260, 305–318.
| Reconstruction of the middle Eocene climate of Messel using palaeobotanical data.Crossref | GoogleScholarGoogle Scholar |
Hay WW (2011) Can humans force a return to a ‘Cretaceous’ climate? Sedimentary Geology 235, 5–26.
| Can humans force a return to a ‘Cretaceous’ climate?Crossref | GoogleScholarGoogle Scholar |
Huber BT (1998) Tropical paradise at the Cretaceous poles? Science 282, 2199
| Tropical paradise at the Cretaceous poles?Crossref | GoogleScholarGoogle Scholar |
Iglesias A, Zamuner AB, Poir DG, Larriestra F (2007) Diversity, taphonomy and palaeoecology of an angiosperm flora from the Cretaceous (Cenomanian–Coniacian) in southern Patagonia, Argentina. Palaeontology 50, 445–466.
| Diversity, taphonomy and palaeoecology of an angiosperm flora from the Cretaceous (Cenomanian–Coniacian) in southern Patagonia, Argentina.Crossref | GoogleScholarGoogle Scholar |
Jordan GJ (1997) Uncertainty in palaeoclimatic reconstructions based on leaf physiognomy. Australian Journal of Botany 45, 527–547.
| Uncertainty in palaeoclimatic reconstructions based on leaf physiognomy.Crossref | GoogleScholarGoogle Scholar |
Jordan GJ (2011) A critical framework for the assessment of biological palaeoproxies: predicting past climate and levels of atmospheric CO2 from fossil leaves. New Phytologist 192, 29–44.
| A critical framework for the assessment of biological palaeoproxies: predicting past climate and levels of atmospheric CO2 from fossil leaves.Crossref | GoogleScholarGoogle Scholar | 21770947PubMed |
Kemp A (1997) Four species of Metaceratodus (Osteichthyes: Dipnoi, family Ceratodontidae) from Australian Mesozoic and Cenozoic deposits. Journal of Vertebrate Paleontology 17, 26–33.
| Four species of Metaceratodus (Osteichthyes: Dipnoi, family Ceratodontidae) from Australian Mesozoic and Cenozoic deposits.Crossref | GoogleScholarGoogle Scholar |
Kowalski EA (2002) Mean annual temperature estimation based on leaf morphology: a test from tropical South America. Palaeogeography, Palaeoclimatology, Palaeoecology 188, 141–165.
| Mean annual temperature estimation based on leaf morphology: a test from tropical South America.Crossref | GoogleScholarGoogle Scholar |
Kowalski EA, Dilcher DL (2003) Warmer paleotemperatures for terrestrial ecosystems. Proceedings of the National Academy of Sciences, USA 100, 167–170.
| Warmer paleotemperatures for terrestrial ecosystems.Crossref | GoogleScholarGoogle Scholar |
Li ZX, Powell CM (2001) An outline of the palaeogeographic evolution of the Australasian region since the beginning of the Neoproterozoic. Earth-Science Reviews 53, 237–277.
| An outline of the palaeogeographic evolution of the Australasian region since the beginning of the Neoproterozoic.Crossref | GoogleScholarGoogle Scholar |
Little SA, Kembel SW, Wilf P (2010) Paleotemperature proxies from leaf fossils reinterpreted in light of evolutionary history. PLoS ONE 5, e15161
| Paleotemperature proxies from leaf fossils reinterpreted in light of evolutionary history.Crossref | GoogleScholarGoogle Scholar | 21203554PubMed |
Markwick PJ (1994) ‘Equability’, continentality, and Tertiary ‘climate’: the crocodilian perspective. Geology 22, 613–616.
| ‘Equability’, continentality, and Tertiary ‘climate’: the crocodilian perspective.Crossref | GoogleScholarGoogle Scholar |
Markwick PJ (1998) Fossil crocodilians as indicators of Late Cretaceous and Cenozoic climates: implications for using palaeontological data in reconstructing palaeoclimate. Palaeogeography, Palaeoclimatology, Palaeoecology 137, 205–271.
| Fossil crocodilians as indicators of Late Cretaceous and Cenozoic climates: implications for using palaeontological data in reconstructing palaeoclimate.Crossref | GoogleScholarGoogle Scholar |
McLoughlin S (1996) Early Cretaceous macrofloras of Western Australia. Records of the West Australian Museum 18, 19–65.
McLoughlin S, Drinnan AN, Rozefelds AC (1995) A Cenomanian flora from the Winton Formation, Eromanga Basin, Queensland, Australia. Memoirs of the Queensland Museum 38, 273–313.
McLoughlin S, Pott C, Elliott D (2010) The Winton Formation flora (Albian-Cenomanian, Eromanga Basin): implications for vascular plant diversification and decline in the Australian Cretaceous. Alcheringa 34, 303–323.
| The Winton Formation flora (Albian-Cenomanian, Eromanga Basin): implications for vascular plant diversification and decline in the Australian Cretaceous.Crossref | GoogleScholarGoogle Scholar |
Milla R, Reich PB (2011) Multi-trait interactions, not phylogeny, fine-tune leaf size reduction with increasing altitude. Annals of Botany 107, 455–465.
| Multi-trait interactions, not phylogeny, fine-tune leaf size reduction with increasing altitude.Crossref | GoogleScholarGoogle Scholar | 21199835PubMed |
Miller IM, Brandon MT, Hickey LJ (2006) Using leaf margin analysis to estimate the mid-Cretaceous (Albian) paleolatitude of the Baja BC block. Earth and Planetary Science Letters 245, 95–114.
| Using leaf margin analysis to estimate the mid-Cretaceous (Albian) paleolatitude of the Baja BC block.Crossref | GoogleScholarGoogle Scholar |
Molnar RE (1991) Fossil reptiles in Australia. In ‘Vertebrate palaeontology of Australasia’. (Eds P Vickers-Rich, JM Monaghan, RF Baird, TH Rich) pp. 606–702. (Pioneer Design Studio: Melbourne)
Parrish JT, Daniel IL, Kennedy EM, Spicer RA (1998) Paleoclimatic significance of mid-Cretaceous floras from the middle Clarence Valley, New Zealand. Palaios 13, 149–159.
| Paleoclimatic significance of mid-Cretaceous floras from the middle Clarence Valley, New Zealand.Crossref | GoogleScholarGoogle Scholar |
Peppe DJ, Royer DL, Cariglino B, Oliver SY, Newman S, Leight E, Enikolopov G, Fernandez-Burgos M, Herrera F, Adams JM, Correa E, Currano ED, Erickson JM, Hinojosa LF, Hoganson JW, Iglesias A, Jaramillo CA, Johnson KR, Jordan GJ, Kraft NJB, Lovelock EC, Lusk CH, Niinemets Ü, Peñuelas J, Rapson G, Wing SL, Wright IJ (2011) Sensitivity of leaf size and shape to climate: global patterns and paleoclimatic applications. New Phytologist 190, 724–739.
| Sensitivity of leaf size and shape to climate: global patterns and paleoclimatic applications.Crossref | GoogleScholarGoogle Scholar | 21294735PubMed |
Peters MD (1985) A taxonomic analysis of a middle Cretaceous megafossil plant assemblage from Queensland, Australia. Thesis, University of Adelaide.
Peters MD, Christophel DC (1978) Austrosequoia wintonensis, a new taxodiaceous cone from Queensland, Australia. Canadian Journal of Botany 56, 3119–3128.
| Austrosequoia wintonensis, a new taxodiaceous cone from Queensland, Australia.Crossref | GoogleScholarGoogle Scholar |
Pirrie D, Doyle P, Marshall JD, Ellis G (1995) Cool Cretaceous climates: new data from the Albian of Western Australia. Journal of the Geological Society 152, 739–742.
| Cool Cretaceous climates: new data from the Albian of Western Australia.Crossref | GoogleScholarGoogle Scholar |
Pole M (1999a) Latest Albian–earliest Cenomanian monocotyledonous leaves from Australia. Botanical Journal of the Linnean Society 129, 177–186.
| Latest Albian–earliest Cenomanian monocotyledonous leaves from Australia.Crossref | GoogleScholarGoogle Scholar |
Pole M (1999b) Structure of a near-polar latitude forest from the New Zealand Jurassic. Palaeogeography, Palaeoclimatology, Palaeoecology 147, 121–139.
| Structure of a near-polar latitude forest from the New Zealand Jurassic.Crossref | GoogleScholarGoogle Scholar |
Pole M (2000a) Dicotyledonous leaf macrofossils from the latest Albian–earliest Cenomanian of the Eromanga Basin, Queensland, Australia. Paleontological Research 4, 39–52.
Pole MS (2000b) Mid-Cretaceous conifers from the Eromanga Basin, Australia. Australian Systematic Botany 13, 153–197.
| Mid-Cretaceous conifers from the Eromanga Basin, Australia.Crossref | GoogleScholarGoogle Scholar |
Pole MS, Douglas JG (1999) Bennettitales, Cycadales and Ginkgoales from the mid Cretaceous of the Eromanga Basin, Queensland, Australia. Cretaceous Research 20, 523–538.
| Bennettitales, Cycadales and Ginkgoales from the mid Cretaceous of the Eromanga Basin, Queensland, Australia.Crossref | GoogleScholarGoogle Scholar |
Price GD, Williamson T, Henderson RA, Gagan MK (2012) Barremian–Cenomanian palaeotemperatures for Australian seas based on new oxygen-isotope data from belemnite rostra. Palaeogeography, Palaeoclimatology, Palaeoecology 358–360, 27–39.
| Barremian–Cenomanian palaeotemperatures for Australian seas based on new oxygen-isotope data from belemnite rostra.Crossref | GoogleScholarGoogle Scholar |
Salisbury SW, Molnar RE, Frey E, Willis PMA (2006) The origin of modern crocodyliforms: new evidence from the Cretaceous of Australia. Proceedings. Biological Sciences 273, 2439–2448.
| The origin of modern crocodyliforms: new evidence from the Cretaceous of Australia.Crossref | GoogleScholarGoogle Scholar |
Spicer R, Valdes P, Spicer T, Craggs H, Srivastava G, Mehrotra R, Yang J (2009) New developments in CLAMP: calibration using global gridded meteorological data. Palaeogeography, Palaeoclimatology, Palaeoecology 283, 91–98.
| New developments in CLAMP: calibration using global gridded meteorological data.Crossref | GoogleScholarGoogle Scholar |
Spicer RA, Bera S, De Bera S, Spicer TEV, Srivastava G, Mehrotra R, Mehrotra N, Yang J (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, 381–395.
| 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.Crossref | GoogleScholarGoogle Scholar |
Steart DC, Boon PI, Greenwood DR, Diamond NT (2002) Transport of leaf litter in upland streams of Eucalyptus and Nothofagus forests in southeastern Australia. Archiv fuer Hydrobiologie 156, 43–61.
| Transport of leaf litter in upland streams of Eucalyptus and Nothofagus forests in southeastern Australia.Crossref | GoogleScholarGoogle Scholar |
Steart DC, Spicer RA, Bamford MK (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, 607–620.
| Is southern Africa different? An investigation of the relationship between leaf physiognomy and climate in southern African mesic vegetation.Crossref | GoogleScholarGoogle Scholar |
Stevens GR, Clayton RN (1971) Oxygen isotope studies on Jurassic and Cretaceous belemnites from New Zealand and their biogeographic significance. New Zealand Journal of Geology and Geophysics 14, 829–897.
| Oxygen isotope studies on Jurassic and Cretaceous belemnites from New Zealand and their biogeographic significance.Crossref | GoogleScholarGoogle Scholar |
Tarduno JA, Brinkman DB, Renne PR, Cottrell RD, Scher H, Castillo P (1998) Evidence for extreme climatic warmth from Late Cretaceous Arctic vertebrates. Science 282, 2241–2243.
| Evidence for extreme climatic warmth from Late Cretaceous Arctic vertebrates.Crossref | GoogleScholarGoogle Scholar | 9856943PubMed |
Traiser C, Klotz S, Uhl D, Mosbrugger V (2005) Environmental signals from leaves: a physiognomic analysis of European vegetation. New Phytologist 166, 465–484.
| Environmental signals from leaves: a physiognomic analysis of European vegetation.Crossref | GoogleScholarGoogle Scholar | 15819911PubMed |
Tucker RT, Roberts EM, Salisbury SW (2013) U-Pb detrital zircon constraints on the depositional age of the Winton Formation, western Queensland, Australia: contextualizing Australia’s Late Cretaceous dinosaur faunas. Gondwana Research 24, 767–779.
| U-Pb detrital zircon constraints on the depositional age of the Winton Formation, western Queensland, Australia: contextualizing Australia’s Late Cretaceous dinosaur faunas.Crossref | GoogleScholarGoogle Scholar |
Ufnar DF, Ludvigson GA, Gonzalez L, Grôcke DR (2008) Precipitation rates and atmospheric heat transport during the Cenomanian greenhouse warming in North America: estimates from a stable isotope mass-balance model. Palaeogeography, Palaeoclimatology, Palaeoecology 266, 28–38.
| Precipitation rates and atmospheric heat transport during the Cenomanian greenhouse warming in North America: estimates from a stable isotope mass-balance model.Crossref | GoogleScholarGoogle Scholar |
Uhl D, Mosbrugger V, Bruch A, Utescher T (2003) Reconstructing palaeotemperatures using leaf floras: case studies for a comparison of leaf margin analysis and the coexistence approach. Review of Palaeobotany and Palynology 126, 49–64.
| Reconstructing palaeotemperatures using leaf floras: case studies for a comparison of leaf margin analysis and the coexistence approach.Crossref | GoogleScholarGoogle Scholar |
Upchurch GRJ, Wolfe JA (1987) Mid-Cretaceous to Early Tertiary vegetation and climate evidence from fossil leaves and wood. In ‘The origins of angiosperms and their biological consequences’. (Eds EM Friis, WG Chaloner, PR Crane) pp. 75–106. (Cambridge University Press: Cambridge, UK)
White ME (1966) Report on 1965 plant fossil collections. Bureau of Mineral Resources, Geology and Geophysics, Australia. Record 1966, 1–10.
White ME (1974) Plant fossils from the Gilberts River and Winton formations, and the Pascoe River area, Queensland. Bureau of Mineral Resources, Geology and Geophysics, Australia. Record 1974, 1–5.
Wilf P (1997) When are leaves good thermometers? A new case for leaf margin analysis. Paleobiology 23, 373–390.
Wilf P, Wing SL, Greenwood DR, Greenwood CL (1998) Using fossil leaves as paleoprecipitation indicators: an Eocene example. Geology 26, 203–206.
| Using fossil leaves as paleoprecipitation indicators: an Eocene example.Crossref | GoogleScholarGoogle Scholar |
Wing SL, Greenwood DR (1993) Fossils and fossil climate: the case for equable continental interiors in the Eocene. Philosophical Transactions of the Royal Society of London. Series B. Biological Sciences 341, 243–252.
| Fossils and fossil climate: the case for equable continental interiors in the Eocene.Crossref | GoogleScholarGoogle Scholar |
Wolfe JA (1979) Temperature parameters of humid to mesic forests of eastern Asia and relation to forests of other regions of the northern hemisphere and Australasia. US Geological Survey Professional Paper 1106, 1–37.
Wolfe JA (1993) A method of obtaining climatic parameters from leaf assemblages. US Geological Society Bulletin 2040, 1–71.
Wolfe JA (1995) Paleoclimatic estimates from Tertiary leaf assemblages. Annual Review of Earth and Planetary Sciences 23, 119–142.
| Paleoclimatic estimates from Tertiary leaf assemblages.Crossref | GoogleScholarGoogle Scholar |
Yang J, Spicer R, Spicer T, Li C-S (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, 163–183.
