Martin J. Head
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View article: Reply to Edgeworth et al. (2024): The Anthropocene Is a Time Interval, and More Besides
Reply to Edgeworth et al. (2024): The Anthropocene Is a Time Interval, and More Besides Open
The Anthropocene was introduced to denote a dramatic, ongoing, planetary shift from prolonged relative Holocene stability, driving the Earth system into a new functional state outside its natural variability. Now stratigraphically‐grounded…
View article: Response to Damianos—Anthropocene angst: Authentic geology and stratigraphic sincerity
Response to Damianos—Anthropocene angst: Authentic geology and stratigraphic sincerity Open
Damianos provides his views on the significance of the March 2024 decision by the International Commission on Stratigraphy (ICS) to reject the proposal of the Anthropocene Working Group (AWG), the body we represent, to formalize the Anthro…
View article: High-resolution analysis of the varved succession at Crawford lake across the base of the proposed Crawfordian stage and Anthropocene series
High-resolution analysis of the varved succession at Crawford lake across the base of the proposed Crawfordian stage and Anthropocene series Open
Four years after the Anthropocene Working Group (AWG) voted to work toward defining the Anthropocene series/epoch with a base in the mid-20th C, the varved sediments of Crawford Lake (Milton, ON, Canada) were selected as the Global boundar…
View article: Would Adding the Anthropocene to the Geologic Time Scale Matter?
Would Adding the Anthropocene to the Geologic Time Scale Matter? Open
Abrupt planetary change forced by the cumulative and overwhelming impacts of human activities in the mid‐twentieth century supports a new geologic epoch, named after Anthropos , the agent of this change. This transformation extends well be…
View article: Reply to Edgeworth et al. 2024: The Anthropocene is a time interval, and more besides
Reply to Edgeworth et al. 2024: The Anthropocene is a time interval, and more besides Open
International audience
View article: Part 2: Descriptions of the proposed Crawford Lake GSSP and supporting SABSs. The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group
Part 2: Descriptions of the proposed Crawford Lake GSSP and supporting SABSs. The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group Open
This part of the Anthropocene Working Group (AWG) submission proposes that the base of the Anthropocene should be defined as series/epoch, terminating the Holocene Series/Epoch with a single Crawfordian stage/age using a Global boundary St…
View article: Part 1: Anthropocene Series/Epoch: stratigraphic context and justification of rank The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group
Part 1: Anthropocene Series/Epoch: stratigraphic context and justification of rank The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group Open
The Anthropocene Working Group (AWG) has concluded that the Anthropocene represents geological reality and should be linked with the plethora of stratigraphic proxies that initiate or show marked perturbations at around the 1950s, and shou…
View article: Comment on “The Volyn biota (Ukraine) – indications of 1.5 Gyr old eukaryotes in 3D preservation, a spotlight on the `boring billion' ” by Franz et al. (2023)
Comment on “The Volyn biota (Ukraine) – indications of 1.5 Gyr old eukaryotes in 3D preservation, a spotlight on the `boring billion' ” by Franz et al. (2023) Open
Franz et al. (2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolitic cavities within the granitic Volyn pegmatite field, a major granitic plutonic complex in NW Ukraine. The biota is …
View article: Issue Information
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View article: Executive Summary: The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group
Executive Summary: The Anthropocene Epoch and Crawfordian Age: proposals by the Anthropocene Working Group Open
This is the Executive Summary of a report produced by the membership of the Anthropocene Working Group as part of a submission to the Subcommission on Quaternary Stratigraphy to seek formalisation of the Anthropocene as an epoch of geologi…
View article: The varved sediment succession of Crawford Lake, Ontario, Canada: GSSP for the proposed Anthropocene Epoch 
The varved sediment succession of Crawford Lake, Ontario, Canada: GSSP for the proposed Anthropocene Epoch  Open
The Crawford Lake sedimentary sequence in Milton, Ontario, Canada, has been chosen as the Global Boundary Stratotype Section and Point (GSSP) for the proposed Anthropocene Series/Epoch, with its inception occurring at 1952 CE in the mid-20…
View article: Dual nomenclature in organic-walled dinoflagellate cysts I: concepts, methods and applications
Dual nomenclature in organic-walled dinoflagellate cysts I: concepts, methods and applications Open
Dual nomenclature in dinoflagellates is supported under the current nomenclatural code for algae, fungi and plants and allows a fossil-defined (usually cyst) species to bear a name other than that of its equivalent non-fossil species, as e…
View article: Dual nomenclature in organic-walled dinoflagellate cysts II: <i>Spiniferites elongatus</i> and <i>S. membranaceus</i> , and their equivalent non-fossil species <i>Gonyaulax ovum</i> comb. nov. and <i>G. lewisiae</i> sp. nov.
Dual nomenclature in organic-walled dinoflagellate cysts II: <i>Spiniferites elongatus</i> and <i>S. membranaceus</i> , and their equivalent non-fossil species <i>Gonyaulax ovum</i> comb. nov. and <i>G. lewisiae</i> sp. nov. Open
The cyst-defined extant Spiniferites elongatus Reid 1974 and Spiniferites membranaceus (Rossignol 1964) Sarjeant 1970 are environmentally significant fossil-species of the Quaternary, the former often dominating polar and subpolar assembla…
View article: Reply on RC1
Reply on RC1 Open
Abstract. Franz et. al. (Biogeosciences 20, 1901–1924, 2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolotic cavities within the granitic Volyn pegmatite field, a major granitic plut…
View article: Comment on egusphere-2023-2748
Comment on egusphere-2023-2748 Open
Abstract. Franz et. al. (Biogeosciences 20, 1901–1924, 2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolotic cavities within the granitic Volyn pegmatite field, a major granitic plut…
View article: Comment on egusphere-2023-2748
Comment on egusphere-2023-2748 Open
Abstract. Franz et. al. (Biogeosciences 20, 1901–1924, 2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolotic cavities within the granitic Volyn pegmatite field, a major granitic plut…
View article: Comment on egusphere-2023-2748
Comment on egusphere-2023-2748 Open
Abstract. Franz et. al. (Biogeosciences 20, 1901–1924, 2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolotic cavities within the granitic Volyn pegmatite field, a major granitic plut…
View article: Comment on Franz et al. 2023: A reinterpretation of the 1.5 billion year old Volyn ‘biota’ of Ukraine, and discussion of the evolution of the eukaryotes
Comment on Franz et al. 2023: A reinterpretation of the 1.5 billion year old Volyn ‘biota’ of Ukraine, and discussion of the evolution of the eukaryotes Open
Franz et. al. (Biogeosciences 20, 1901–1924, 2023) report a diverse and three-dimensionally preserved suite of mid-Proterozoic microfossils from miarolotic cavities within the granitic Volyn pegmatite field, a major granitic plutonic compl…
View article: The Anthropocene within the Geological Time Scale: a response to fundamental questions
The Anthropocene within the Geological Time Scale: a response to fundamental questions Open
The Anthropocene as a prospective new, ongoing series/epoch must be defensible against all relevant concerns. We address the seven, still-relevant challenges posed to the Anthropocene Working Group by the Chair, International Commission on…
View article: The Neogene–Quaternary boundary at its type locality, Monte San Nicola, Sicily, southern Italy: X-ray computed tomography and ichnofabric signals of the sapropelic Nicola bed
The Neogene–Quaternary boundary at its type locality, Monte San Nicola, Sicily, southern Italy: X-ray computed tomography and ichnofabric signals of the sapropelic Nicola bed Open
A new low-cost method is described for obtaining narrow blocks of the friable Nicola bed, the local marker for the Neogene–Quaternary system (Pliocene–Pleistocene series) boundary at the type section at Monte San Nicola, southern Sicily. T…
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Wiley's Corporate Citizenship initiative seeks to address the environmental, social, economic, and ethical challenges faced in our business and which are important to our diverse stakeholder groups.Since launching the initiative, we have f…
View article: Report of the Registration Committee
Report of the Registration Committee Open
The Registration Committee was established at the Nomenclature Section of the XIX International Botanical Congress (IBC) in Shenzhen, China in 2017. It followed the previous Special Committee on Registration of Algal and Plant Names (inclu…
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Wiley's Corporate Citizenship initiative seeks to address the environmental, social, economic, and ethical challenges faced in our business and which are important to our diverse stakeholder groups.Since launching the initiative, we have f…