Publications
101 results found
Brett CE, Whitely TE, Allison PA, et al., 1999, The Walcott-Rust Quarry: Middle Ordovician trilobite Konservat-Lagerstatten, Journal of Paleontology, Vol: 73, Pages: 288-305
Allison PA, Ford R, Corfield RM, 1999, Stratification and oxygen isotopes in the Paleozoic.is paleothermometry in hot water?, The Palaeontological Society Papers, Vol: 4, Pages: 244-254
Taylor PD, Allison PA, 1998, Bryozoan carbonates through time and space, GEOLOGY, Vol: 26, Pages: 459-462, ISSN: 0091-7613
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- Citations: 87
Taylor PD, Allison PA, 1998, Bryozoan carbonates through time and space, Geology, Vol: 26, Pages: 459-462, ISSN: 0091-7613
The calcareous skeletons of modern bryozoans are major contributors to sediments only outside the topics, and many temperate limestones are dominated by bryozoans, often in conjunction with mollusks in the so-called 'bryomol' grain association. Can the presence of rock-forming abundances of bryozoans be used to recognize nontropical sediments in the geologic past? We have addressed this question by assembling a database of 176 Ordovician-Pleistocene bryozoan-rich deposits and plotting them on paleogeographical maps to obtain their latitudes of formation. The results reveal a striking difference between post-Paleozoic and Paleozoic latitudinal distributions. Whereas the great majority (94%) of post-Paleozoic bryozoan-rich deposits formed outside the tropics, Paleozoic bryozoan-rich deposits have a more variable latitudinal distribution, most (68%) having formed within the tropics. The presence of rock-forming abundances of bryozoans in Paleozoic sediments should not, therefore, be used to infer nontropical carbonate deposition. The change in latitudinal distribution between the Paleozoic and post-Paleozoic corresponds with a major taxonomic turnover in bryozoan faunas. Biotic interactions, especially with predators, may have led to the exclusion of sediment-producing bryozoans from the post-Paleozoic tropics. These evolutionary changes have had a more profound effect on carbonate platforms that has been previously appreciated.
Brett C, Allison PA, 1998, Paleontological Approaches to the Environmental Interpretation of Marine Mudrocks, Shales and Mudstones Vol 1, Editors: Schieber, Zimmerle, Sethi, Stuttgart, Publisher: E Schweizerbartsche Verlagsbuchandlung (Nagel u. Obermiller), Pages: 301-349
Aguilera-Franco N, Allison PA, MacLeod N, 1998, The stratigraphy and environmental change associated with the Cenomanian-Turonian boundary of southern Mexico., Alicante, International Sedimentological Congress, Publisher: International Association of Sedimentology, Pages: 117-118
Allison PA, Wignall PB, Brett CE, 1995, Palaeo-oxygenation: Effects and recognition, Geological Society Special Publication, Vol: 83, Pages: 97-112, ISSN: 0305-8719
Oxygen is a bio-limiting element for metazoa and one of the most important factors influencing species diversity and abundance in the marine realm. Equally, the absence of oxygen is generally considered to be essential for the inhibition of microbial decay and the formation of organic-rich sediments. As such, the determination of depositional palaeo-oxygenation values of ancient rocks has become a fundamental quest for the palaeoecologist and mudrock sedimentologist. In this paper the development of the tripartite anaerobic-dysaerobic-aerobic terminology for oxygen-related biofacies and the recent additions of the exaerobic and poikiloaerobic biofacies are reviewed. The new, non-genetic, oxygen-restricted biofacies (ORB) scheme is also presented. Chemosymbiotic life strategies have been suggested to be important in many extinct black shale taxa but a glance at modern chemosymbionts casts doubt on the significance of this mode of life in ORB. A review of lowest dysaerobic benthic forms throughout the Phanerozoic reveals the repeated occurrence of a few morphologies almost exclusively derived from the brachiopods and bivalves. Geochemical indices of palaeo-oxygen levels are also reviewed. The recent renaissance in the development of criteria for the determination of palaeo-oxygen values has led to the recognition of a considerably greater variety of dysaerobic biofacies in the geological record. This is illustrated with two case studies, the first, from the celebrated Burgess Shale of British Columbia, shows a depositional environment dominated by a fluctuating oxycline. The second case study, from widely separated earliest Triassic marine sections, illustrates the possibility of a widespread (global) dysoxic event at this time. © 1995 The Geological Society.
ALLISON PA, BRETT CE, 1995, IN-SITU BENTHOS AND PALEO-OXYGENATION IN THE MIDDLE CAMBRIAN BURGESS SHALE, BRITISH-COLUMBIA, CANADA, GEOLOGY, Vol: 23, Pages: 1079-1082, ISSN: 0091-7613
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- Citations: 64
Bosence DW, Allison PA, 1995, Marine palaeoenvironmental analysis from fossils, Marine palaeoenvironmental analysis from fossils
Following an introductory review chapter, there are eleven contributions (abstracted separately) which draw on a host of geochemical, palaeoecological and palaeontological methods from traditional taxonomic uniformitarianism to more recently developed geochemical isotopic analyses. The approach of the book is analytical rather than taxonomic. Using a number of methods, and comparing their results, allows different environmental controls to be isolated and provides more information on the record of past environmental parameters. -from Editors
Allison PA, Wignall PB, Brett CE, 1995, Palaeo-oxygenation: effects and recognition, Marine palaeoenvironmental analysis from fossils, Pages: 97-112
Oxygen is a bio-limiting element for metazoa and one of the most important factors influencing species diversity and abundance in the marine realm. Equally, the absence of oxygen is generally considered to be essential for the inhibition of microbial decay and the formation of organic-rich sediments. As such, the determination of depositional palaeo-oxygenation values of ancient rocks has become a fundamental quest for the palaeoecologist and mudrock sedimentologist. In this paper the development of the tripartite anaerobic-dysaerobic-aerobic terminology for oxygen-related biofacies and the recent additions of the exaerobic and poikiloaerobic biofacies are reviewed. The new, nongenetic, oxygen-restricted biofacies (ORB) scheme is also presented. -from Authors
Allison PA, Brett CE, 1995, In situ benthos and paleo-oxygenation in the Middle Cambrian Burgess Shale, British Columbia, Canada, Geology, Vol: 23, Pages: 1079-1082, ISSN: 0091-7613
The Middle Cambrian Burgess Shale was deposited under various levels of oxygenation. During periods of oxygenation, low-diversity shell beds were formed and the muds were colonized by infauna. Under these circumstances pyrite was restricted to anoxic microenvironments and formed small (1 mm) discrete aggregated masses. Soft-bodied organisms were preserved under low-oxygen conditions typified by evenly dispersed pyrite, and an absence of trace fossils and shell beds. -Authors
Allison PA, Brett CE, 1995, In-situ benthos and paleo-oxygenation within the Burgess Shale, Geology, Vol: 26, Pages: 1079-1082
Bosence DWJ, Allison PA, 1995, A review of marine palaeoenvironmentral analysis from fossils, Geological Society of London Special Publication, Vol: 83, Pages: 1-7
Allison PA, Briggs DEG, Pickerill R, 1994, Exceptional fossil record: distribution of soft-tissue preservation through the Phanerozoic-comment and reply, Geology, Vol: 22
Allison PA, Pye K, 1994, Early diagenetic mineralization and fossil preservation in modern concretions, Palaois, Vol: 9, Pages: 561-575
ALLISON DJ, ALLISON PA, 1993, BOTH ENDS OF A TELESCOPE - EXPERIENCE AND EXPERTISE IN PRINCIPAL PROBLEM-SOLVING, EDUCATIONAL ADMINISTRATION QUARTERLY, Vol: 29, Pages: 302-322, ISSN: 0013-161X
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- Citations: 13
ALLISON PA, BRIGGS DEG, 1993, EXCEPTIONAL FOSSIL RECORD - DISTRIBUTION OF SOFT-TISSUE PRESERVATION THROUGH THE PHANEROZOIC, GEOLOGY, Vol: 21, Pages: 527-530, ISSN: 0091-7613
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- Citations: 150
Allison PA, Briggs DEG, 1993, Paleolatitudinal sampling bias, Phanerozoic species diversity, and the end-Permian extinction, Geology, Vol: 21, Pages: 65-68, ISSN: 0091-7613
Species diversity varies with latitude. Almost all marine sedimentary rock in the Paleozoic of Europe and North America was deposited in the tropics, whereas only 24% was deposited in these latitudes during Mesozoic and Tertiary time. A new plot of species diversity through the Phanerozoic takes into account the paleolatitudinal distribution of marine sedimentary rock. This plot indicates that the Permian witnessed the acme of species diversity prior to the Cretaceous, and that the Triassic recovery following the end-Permian extinction was much less pronounced than suggested by previous studies. -Authors
ALLISON DJ, ALLISON PA, 1993, TREES AND FORESTS - DETAILS, ABSTRACTION, AND EXPERIENCE IN PROBLEM-SOLVING, Cognition and School Leadership Conference, Publisher: TEACHERS COLLEGE PRESS, Pages: 130-145
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- Citations: 3
Allison PA, Briggs DEG, 1993, The Burgess Shale biota: burrowed” away?, Lethaia, Pages: 184-185
Allison PA, Briggs DEG, 1991, Taphonomy: Releasing the Data Locked in the Fossil Record, Publisher: Springer, ISBN: 978-0306438769
Allison PA, Briggs DEG, 1991, The taphonomy of soft-bodied animals, THE PROCESS OF FOSSILIZATION, Editors: Donovan, New York, Publisher: Columbia University Press, Pages: 120-140, ISBN: 0231076746
Allison PA, Smith CR, Demming J, et al., 1991, Deep water taphonomy of vertebrate carcasses: a whale skeleton in the Santa Catalina Basin, Paleobiology, Vol: 17, Pages: 78-89
Allison PA, Briggs DEG, 1991, Taphonomy of non-mineralized tissues, Taphonomy: Releasing the data locked in the fossil record, Editors: Allison, Briggs, New York, Publisher: Plenum Press, Pages: 26-70, ISBN: 9780306438769
Allison PA, 1990, Variation in rate of decay and disarticulation of echinodermata: implications for application of taphonomic data, Palaios, Vol: 5, Pages: 432-440
Allison PA, 1990, Pyrite, Paleobiology: A Synthesis, Editors: Briggs, Crowther, Oxford, Publisher: Blackwell Science Ltd., Pages: 253-255, ISBN: 9780632025251
Allison PA, 1990, Decay Processes, Paleobiology: A Synthesis, Editors: Briggs, Crowther, Oxford, Publisher: Blackwell Science Ltd., Pages: 213-216, ISBN: 9780632025251
Allison PA, 1990, Carbonate nodules and plattenkalks, Paleobiology: A Synthesis, Editors: Briggs, Crowther, Oxford, Publisher: Blackwell Science Ltd., Pages: 250-253, ISBN: 0-632-02525-5
Allison PA, 1989, The origin of encrusting microbes on Eocene fossils, Memoirs of the Faculty of Science, Kochi University, Series E. Geology, Vol: 11, Pages: 23-34, ISSN: 0389-0295
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