cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.13129053
title: Linked collectors and determiners for: Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus.

description: Natural history specimen data linked to collectors and determiners held within, "Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.13419373
title: Linked collectors and determiners for: Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus.

description: Natural history specimen data linked to collectors and determiners held within, "Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.13977515
title: Linked collectors and determiners for: Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus.

description: Natural history specimen data linked to collectors and determiners held within, "Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/f366dee6-1d72-489c-a58f-d156f1d2bbc5. Formatted as a Frictionless Data package.
DOI: 10.7910/dvn/p4arf1
title: A98_9517b.jpg

description: Link to OCHRE database: &lt;a href = 'http://pi.lib.uchicago.edu/1001/org/ochre/c1c80834-02b1-ccb7-f2db-f24538cf1520'&gt;http://pi.lib.uchicago.edu/1001/org/ochre/c1c80834-02b1-ccb7-f2db-f24538cf1520
DOI: 10.7910/dvn/qf0uyq
title: A98_9517c.jpg

description: Link to OCHRE database: &lt;a href = 'http://pi.lib.uchicago.edu/1001/org/ochre/b4cd36ac-97b8-b6f7-5127-ef8258fb6f04'&gt;http://pi.lib.uchicago.edu/1001/org/ochre/b4cd36ac-97b8-b6f7-5127-ef8258fb6f04
DOI: 10.15468/dl.h5z5np
title: Occurrence Download

description: A dataset containing 47861356 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "Continent is North America",
 "CoordinateUncertaintyInMeters 0.0-1000.0"
 ]
}

 The dataset includes 47861356 records from 819 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0031025-241007104925546/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.663963
title: Oceanography at CTD/bottle station IFREMER_0804
DOI: 10.1594/pangaea.807636
title: (Table 1) Geochemistry of orthopyroxene from Qeqertaa xenoliths
DOI: 10.1594/pangaea.832120
title: (Table 3) Extent of racemization (D/L) in foraminifera from Arctic Ocean sediment cores

description: Ages with two decimals (not *.00) are 14C age; other ages are estimated on the basis of stratigraphic correlations.
DOI: 10.1594/pangaea.694948
title: Concentrations of chlorophyll-alpha in water of the Aegean Sea at Station SEPT-1998-S08

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore filters. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.919681
title: (Figure 2) Biennial mass balance and its components from GRACE/GRACE-FO and SMB-D (2003-2018) for the Greenland Ice Sheet, along with regional estimates for 2017-2018 for East and West

description: Biennial mass balance anomaly wrt 2003-2018 mean.
DOI: 10.1594/pangaea.762178
title: (Table 5) Major element content of Sulu basement rocks and Cagayan Ridge volcanics
DOI: 10.1594/pangaea.665262
title: Oceanography at CTD/bottle station IFREMER_2102
DOI: 10.1594/pangaea.777273
title: (Table 5) Representative amphibole composition for selected gabbroic xenoliths, megacrysts and phenocrysts from Jeju Island
DOI: 10.1594/pangaea.857801
title: (Table 2) Stable carbon isotope compositions of biphytanes from IODP Hole 311-U1327C and 311-U1328B
DOI: 10.1594/pangaea.684688
title: (Appendix B) Benthic foraminifera accumulation rates of ODP Site 121-758 in the northern Indian Ocean

description: Age model of Chen et al. (1995), depth is composite depth (mcd)
DOI: 10.1594/pangaea.905589
title: (Supplement S2) Chemical characteristics of the assigned elemental formulas from the FT-ICR MS data of Arctic aerosol-derived organic matter collected in Ny-Ålesund, 02-05 May
DOI: 10.1594/pangaea.785363
title: (Table 1) Chemical composition of minerals from IODP Hole 305-U1309D

description: Samples taken between 746.2 and 751.0 mbsf.
DOI: 10.1594/pangaea.909169
title: Monthly mean wind speed (1983-2018) at the Arctic meteorological station Hornsund, Spitsbergen
DOI: 10.1594/pangaea.770885
title: (Table 8) Selected analyses of hornblende in harzburgite from ODP Hole 125-784A

description: Cation proportions on the basis of O = 23.
DOI: 10.1594/pangaea.833689
title: (Table 1) Stable carbon isotope record and calculated recycled DIC for sediment core ANDRA_HTM102

description: The prominent negative stable carbon isotope excursion in both carbonate and organic carbon recorded in organic-rich sediments deposited during the Toarcian oceanic anoxic event (OAE) has commonly been explained by recycling of 13C-depleted CO2 (the so-called Küspert model). More recently, the massive release of 13C-depleted methane or other forms of 13C-depleted carbon was also proposed to account for the observed negative d13C excursions in organic carbon of terrigenous as well as of marine origin. The occurrence of diagenetic products of the carotenoid isorenieratene (isorenieratane and other aryl isoprenoids) in Toarcian black shales has been regarded as supporting evidence for the Küspert hypothesis as they point to strong stratification of the epicontinental seas. A section of a drill core straddling the Toarcian of the Paris Basin (Cirfontaine-en-Ornois) contained intact isorenieratane, providing evidence that photosynthetic green sulphur bacteria were present at the time of deposition, even prior to the OAE. However, the isorenieratane abundances are very low in the section where the negative d13C excursion in organic carbon and phytane, a chemical fossil derived from chlorophyll, occurs. The abundance of the isorenieratene derivatives increases, once the d13C records have shifted to more positive values. The d13C of isorenieratane (generally circa -13.1 ± 0.5 per mil) indicates that the respired CO2 contribution at the chemocline was low and is thus not likely to be the main cause of the prominent up to 7per mil negative d13C shift recorded in Toarcian organic carbon records.
description: Supplement to: van Breugel, Yvonne; Baas, Marianne; Schouten, Stefan; Mattioli, Emanuela; Sinninghe Damsté, Jaap S (2006): Isorenieratane record in black shales from the Paris Basin, France: Constraints on recycling of respired CO2 as a mechanism for negative carbon isotope shifts during the Toarcian oceanic anoxic even. Paleoceanography, 21(4), PA4220
DOI: 10.1594/pangaea.770906
title: (Appendix D) Major element concentrations of pyroxenes in perdiotites of ODP Leg 125 samples
DOI: 10.1594/pangaea.866889
title: Isotopic ratios and CaCO3 content in sediment core Q200
DOI: 10.1594/pangaea.819844
title: (Table 3) Major-elements from zeolitic claystones of DSDP Holes 61-462 and 61-462A

description: The chemistry of such deposits departs from that of average Pacific clays and active-ridge sediments by manifesting enhanced values of titanium.
DOI: 10.1594/pangaea.825347
title: Radiosonde measurements from station Nauru Island (2004-06)

description: Version 4, 2014-01-06. Launches at irregular time intervals.
DOI: 10.1594/pangaea.906994
title: Tritium liquid releases from Paluel nuclear plant

description: Liquid tritium releases from Paluel nuclear plant reaching the north-west European seas since the beginning of operation. Releases are given annually.
DOI: 10.1594/pangaea.871655
title: Basic measurements of radiation at station Camborne (2017-01)
DOI: 10.1594/pangaea.903507
title: Late Maastrichtian-early Eocene bulk sediment stable carbon and oxygen isotope records from ODP Site 208-1262, South Atlantic
DOI: 10.1594/pangaea.694407
title: Temperature and salinity in the water column of the Aegean Sea at Station FEBR-1999-IR11

description: The 911plus set has been used. It consists of the 9plus underwater CTD unit and the 11plus V2 deck unit. It has high resolution sampling (24 Hz), pump-controlled T-C ducted flow, up to 10500 meter (15,000 psia) depth capability, maximum auxiliary sensor flexibility, and modem channel for water sampling control. The 911plus set has eight 12-bit A/D channels and supports redundant C&T sensors or custom auxiliary digital inputs.
DOI: 10.1594/pangaea.721524
title: Ultra-violet measurements from station Fort Peck (2000-09)

description: Version 2, 2009-06-19. UV-b values were originally given in mW/m² and then erroneously imported in W/m² using the same numbers. The numbers have been corrected (divided by 1000) on 2017-02-03.
DOI: 10.1594/pangaea.829882
title: Anisotropy-magnetic susceptibility from IODP Hole 338-C0002L

description: Geocode = [m CSF-A] Top Core depth (below sea floor)
DOI: 10.15468/dl.m3n32c
title: Occurrence Download

description: A dataset containing 26 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "GadmGid is CHN.19_1",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Linum stelleroides Planch."
 ]
}

 The dataset includes 26 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0031381-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.733165
title: Physical oceanography during Moana Wave cruise HOT-23 on section PRS2
DOI: 10.1594/pangaea.808304
title: Physical oceanography measured on water bottle samples during John P. Tully cruise TUL96/8
DOI: 10.1594/pangaea.726350
title: (Table 6) Characteristics of samples from hydrothermal edifices of the Lucky Strike hydrothermal field
DOI: 10.1594/pangaea.907297
title: Track of GPS very-near surface drifter ISMER_20150921_spot052
DOI: 10.1594/pangaea.869538
title: Other measurements at 10 m from station Goodwin Creek (2013-12)
DOI: 10.1594/pangaea.761264
title: (Table 1) Weather and hydrological conditions at sampling stations in the southeastern Barents Sea in April 2000
DOI: 10.1594/pangaea.875625
title: (Table 2) Age model for Gilmore Hill (GMH) drill core and regional outcrops
DOI: 10.1594/pangaea.696401
title: Concentrations of total organic carbon in waters of the Baltic Sea at Station VA-11_2

description: Not filtered water samples were taken in 10 ml ampoules (sealed immediately after being acidified with phosphoric acid to pH&lt;2, sampling), or 40 ml screw-lid vials, and measured onboard at sampling or next days, or frozen (-20°C) until being acidified and measured in home labs. Carbon measurement was by high-temperature catalytic oxydation in a 10 cm column packed with 5% Pt on aluminum oxide beads at 900°C in a stream of oxygen, and CO2 detection by infrared extinction after the removal of moisture and SO2 by appropriate traps (cold trap, Mg-percarbonate, Na-pyrophosphate, tin, bronze or Sulfix). The apparatus was the dual channel Dimatek 2000 equipped with a Binos 200 detector.
DOI: 10.1594/pangaea.873561
title: Annotated record of the detailed examination of Mn deposits from DSDP Leg 56 (Holes 434B and 436)

description: The Japan Trench area was identified a favorable place for studying convergent margins during the initial deliberations of the IPOD Active Margins Panel. The Leg 56-57 DSDP drill sampling along the Japan Trench transect has indicated that material tectonically accreted during the present convergent episode is limited to a surprisingly small zone. The limits seem well established by the seaward extent of crust with continental thickness and lithologies and by the age and thickness of a terrigenous slope apron covering the presumed but probably unsampled accreted oceanic material.
description: From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
description: Supplement to: Wories, Henk; Whelan, Jean K; Thompson, Peter R; Sakai, Toyusaburo; Robinson, Paul T; Pisciotto, Kenneth A; Murdmaa, Ivar O; Müller, German; Kurnosov, Victor B; Harper, Howard E; Bruns, T; Adelseck, C; Langseth, Marcus G; Okada, Hakuyu (1980): Initial Reports of the Deep Sea Drilling Project. U. S. Government Printing Office, LVI, 436 pp
DOI: 10.1594/pangaea.683529
title: (Appendix) Stable carbon and oxygen isotope ratios of fine-fraction sediments across the Cretaceous/Tertiary boundary of DSDP Hole 74-528 from Walvis Ridge, South Atlantic

description: Ages were obtained using the magnetostratigraphy data reported by Chave (1984) and age interpretation made by Shackleton and Hall (1984). The K/T boundary is assumed to have an absolute age of 64.5 Ma. based on recent precise determinations of the age of the K/T boundary (Izett et al., 1991).
DOI: 10.1594/pangaea.907301
title: Track of GPS very-near surface drifter ISMER_20150924_spot092
DOI: 10.1594/pangaea.907308
title: Track of GPS very-near surface drifter ISMER_20150925_spot718
DOI: 10.1594/pangaea.669911
title: Basic measurements of radiation at station Kwajalein (1997-02)
DOI: 10.1594/pangaea.749539
title: Meteorological observations during HAVICK cruise from Simonsbaaij to Punto Gale started at 1789-10-08
DOI: 10.1594/pangaea.831152
title: Air humidity and temperature at ground level, Taoujgalt, 2001-10-25 to 2001-10-26

description: Dataset created by IMPETUS subproject B3. IMPETUS data set ID: 109
DOI: 10.1594/pangaea.682950
title: Continuous meteorological observations at Georg-von-Neumayer station (1988-12)

description: Geocode DATE/TIME has centered values.
DOI: 10.1594/pangaea.735603
title: (Table IId) Stable oxygen and carbon isotope of planktonic foraminifera from sediment core V30-108
DOI: 10.1594/pangaea.684659
title: Summer sea surface temperatures calculated from radiolaria at ODP Site 177-1089 in the subantarctic Atlantic

description: A submillennial resolution, radiolarian-based record of summer sea surface temperature (SST) documents the last five glacial to interglacial transitions at the subtropical front, southern Atlantic Ocean. Rapid fluctuations occur both during glacial and interglacial intervals, and sudden cooling episodes at glacial terminations are recurrent. Surface hydrography and global ice volume proxies from the same core suggest that summer SST increases prior to terminations lead global ice-volume decreases by 4.7 ± 3.7 ka (in the eccentricity band), 6.9 ± 2.5 ka (obliquity), and 2.7 ± 0.9 ka (precession). A comparison between SST and benthic delta13C suggests a decoupling in the response of northern subantarctic surface, intermediate, and deep water masses to cold events in the North Atlantic. The matching features between our SST record and the one from core MD97-2120 (southwest Pacific) suggests that the super-regional expression of climatic events is substantially affected by a single climatic agent: the Subtropical Front, amplifier and vehicle for the transfer of climatic change. The direct correlation between warmer DeltaTsite at Vostok and warmer SST at ODP Site 1089 suggests that warmer oceanic/atmospheric conditions imply a more southward placed frontal system, weaker gradients, and therefore stronger Agulhas input to the Atlantic Ocean.
description: Core PS2821-1 and the composite section of ODP Site 177-1089 were correlated by color reflectance, magnetic susceptibility and Cycladophora davisiana relative abundance changes records
description: Supplement to: Cortese, Giuseppe; Abelmann, Andrea; Gersonde, Rainer (2007): The last five glacial-interglacial transitions: A high-resolution 450,000-year record from the subantarctic Atlantic. Paleoceanography, 22(4), PA4203
DOI: 10.1594/pangaea.869607
title: Ultra-violet measurements from station Rock Springs (2013-11)

description: UV-b values were originally given in mW/m² and then erroneously imported in W/m² using the same numbers. The numbers have been corrected (divided by 1000) on 2017-02-03.
DOI: 10.1594/pangaea.747182
title: Meteorological observations during Admiraal Evertsen cruise from Coastal East India to Coastal East India started at 1817-05-04
DOI: 10.1594/pangaea.682955
title: Continuous meteorological observations at Georg-von-Neumayer station (1989-05)

description: Geocode DATE/TIME has centered values.
DOI: 10.1594/pangaea.694323
title: Nutrient concentrations in water samples from the Aegean Sea at Station SEPT-1998-IR70
DOI: 10.1594/pangaea.694447
title: Temperature and salinity in the water column of the Aegean Sea at Station FEBR-1999-IR70

description: The 911plus set has been used. It consists of the 9plus underwater CTD unit and the 11plus V2 deck unit. It has high resolution sampling (24 Hz), pump-controlled T-C ducted flow, up to 10500 meter (15,000 psia) depth capability, maximum auxiliary sensor flexibility, and modem channel for water sampling control. The 911plus set has eight 12-bit A/D channels and supports redundant C&T sensors or custom auxiliary digital inputs.
DOI: 10.1594/pangaea.907271
title: Track of GPS very-near surface drifter ISMER_20150626_spot040
DOI: 10.1594/pangaea.694162
title: Nutrient concentrations in water samples from the Aegean Sea at Station JUNE-1998-IR68
DOI: 10.1594/pangaea.664308
title: Oceanography at CTD/bottle station IFREMER_1149
DOI: 10.1594/pangaea.830617
title: Close-up images of IODP Hole 338-C0002H

description: Geocode = [m CSF-A] Top Core depth (below sea floor)
DOI: 10.1594/pangaea.872743
title: Basic measurements of radiation at station Boulder, SURFRAD (2014-03)
DOI: 10.1594/pangaea.749548
title: Meteorological observations during HAVICK cruise started at 1809-11-02
DOI: 10.1594/pangaea.907283
title: Track of GPS very-near surface drifter ISMER_20150809_spot059
DOI: 10.1594/pangaea.750171
title: Meteorological observations during La Flore cruise from to Brest started at 1772-10-01
DOI: 10.1594/pangaea.771672
title: Physical oceanography during Walther Herwig III cruise WH259
DOI: 10.1594/pangaea.714976
title: (Table 5) Sr and Nd isotopic composition of DSDP Hole 51/52-417D

description: I Nd CH=R(0) = 0.51264; 147Sm/144Nd(CHUR) = 0.1936; I Nd CHUR (T = 108 Ma) = 0.51251; Nd isotope normalization factor: 146/144 = 0.7219
DOI: 10.1594/pangaea.664323
title: Oceanography at CTD/bottle station IFREMER_1164
DOI: 10.1594/pangaea.829245
title: Natural gamma radiation from IODP Hole 340-U1401D

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.832146
title: (Table S6) Carbonate isotopic ratios across the growth lines of the inoceramid T5, ODP Hole 207-1261A
DOI: 10.1594/pangaea.664324
title: Oceanography at CTD/bottle station IFREMER_1165
DOI: 10.1594/pangaea.663404
title: Oceanography at CTD/bottle station IFREMER_0244
DOI: 10.1594/pangaea.683861
title: (Table 1A) Distribution of Paleocene index and selected Cretaceous-Tertiary radiolarians at Woodside Creek, Australia

description: Distance is the distance below (-) and above the K/T boundary. Taxon abundance estimated as a percentage of total fauna: + (rare) = &lt;2 %, F (few) = 2-4 %, C (common) = 5-10 %, A (abundant) = &gt;10 %, - = not represented
DOI: 10.1594/pangaea.873351
title: Other measurements at 10 m from station Desert Rock (2014-04)
DOI: 10.1594/pangaea.829300
title: Reflectance spectroscopy and colorimetry from IODP Hole 340-U1397B

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.818019
title: (Table 3) Bulk chemical composition of indurated hyaloclastite from DSDP Hole 65-483B and nonvolcanic marls and sandstones from DSDP Hole 65-485A
DOI: 10.1594/pangaea.908265
title: Magnesium/calcium in Uvigerina spp. from ODP hole 198-1208A

description: #0: BDL
DOI: 10.1594/pangaea.682981
title: Continuous meteorological observations at Georg-von-Neumayer station (1991-07)

description: Geocode DATE/TIME has centered values.
DOI: 10.1594/pangaea.832147
title: (Table S7) Carbonate isotopic ratios across the growth lines of the inoceramid D5, ODP Hole 207-1261A
DOI: 10.1594/pangaea.666932
title: (Table 2) Chemistry of Fe-Ti-oxides from Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria
DOI: 10.1594/pangaea.787555
title: (Table 1) Chemistry of plagioclases from ODP Holes 134-832B and 134-833B

description: Calculated on the basis of 8 O.
DOI: 10.1594/pangaea.669869
title: Basic measurements of radiation at station Kwajalein (1993-08)
DOI: 10.1594/pangaea.712097
title: (Table 2) Age controls used to derive a time scale for DSDP Site 73-522

description: The stratotype section for the base of the Miocene is at a reversed (below) to normal (above) magnetic transition that is claimed to represent magnetic chron C6Cn.2n (o). Deep Sea Drilling Project (DSDP) Site 522 is the only location we are aware of that unambiguously records the three normal events of C6Cn. We have quantitatively determined the range of the short-lived nannofossil Sphenolithus delphix and the lower limit of S. disbelemnos in DSDP Holes 522 and 522A in order to calibrate their precise relationship to the magnetostratigraphy and to confirm the completeness of the record at this site. Astronomical tuning of Ocean Drilling Program (ODP) Sites 926, 928, and 929 shows that S. disbelemnos appears at 22.67 Ma and that the entire range of S. delphix is from about 22.98 Ma to 23.24 Ma. Using these ages, linear interpolation in DSDP Site 522 suggests that the age of C6Cn.2n (o) and of the Oligocene-Miocene boundary is 22.92+/-0.04 Ma. Our value, conservatively expressed as 22.9+/-0.1 Ma, is 0.9 m.y. younger than the currently accepted age of the Oligocene-Miocene boundary and of C6Cn.2n (o), which was assigned an age of 23.8 Ma, based on an estimate of 23.8+/-1 Ma for the Oligocene-Miocene boundary. The bulk-sediment carbon isotope data from DSDP Site 522 is correlated to the record from benthic foraminifera at ODP Site 929 to refine the calibration of magnetic reversals from C6Cn.1n (o) to C7n.2n (o) at DSDP Site 522 on the astronomical time scale.
description: Supplement to: Shackleton, Nicholas J; Hall, Michael A; Raffi, Isabella; Tauxe, Lisa; Zachos, James C (2000): Astronomical calibration age for the Oligocene-Miocene boundary. Geology, 28(5), 447-450