/* DATA DESCRIPTION:
Citation:	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: an updated global taxonomically and temporally standardized fossil pollen dataset of 3680 palynological records [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.965907
Abstract:	This data set consists of the taxonomically harmonized and temporally standardized fossil pollen data from 3680 records. 1122 records are located in North America, 1446 records in Europe, 687 records in Asia, 185 records in South America, 159 in Africa and 81 in the Indo-Pacific region. We expanded the previous version of the LegacyPollen 1.0 data set (Herzschuh et al., 2022; https://doi.org/10.5194/essd-14-3213-2022) with records from the Neotoma Paleoecology Database (https://www.neotomadb.org/; last access: August 31, 2022), ACER 1.0 database (Sánchez Goñi et al., 2017; https://doi.org/10.1594/PANGAEA.870867), Chinese fossil pollen dataset (Zhou et al., 2023, https://www.plant-ecology.com/CN/Y2023/V47/I10/1453 [in Chinese]; Cao et al., 2022, https://doi.org/10.1111/gcb.16274), and our own collection for the Asian sector. Taxonomic harmonization (i.e., woody taxa and major herbaceous taxa have been harmonized to genus level and other herbaceous taxa to family level) and temporal standardization (i.e., re-estimation of age-depth models) follow the previously established frameworks LegacyPollen 1.0 (Herzschuh et al., 2022; https://doi.org/10.5194/essd-14-3213-2022) and LegacyAge 1.0 (Li et al., 2022; https://doi.org/10.5194/essd-14-1331-2022), respectively. In compiling the dataset, we also followed the practices recommended by Flantua et al. (2023; https://doi.org/10.1111/geb.13693) for large-scale paleoecological data synthesis, such as how to select data sources and filter the dataset.
	Compared to the LegacyPollen 1.0 dataset, we now include the Neotoma DOI (if Neotoma source) in the overview table of site metadata to eliminate the broken chain of static LegacyPollen 2.0 dataset with living (such as updating discovered metadata errors and chronologies) Neotoma and associated risk of data staleness. Furthermore, we also added the PANGAEA Event (PANGAEA dataset identifier) for each new record to ensure that our dataset meets PANGAEA's high standards for quality, usability, and compliance.
Keyword(s):	fossil pollen; Late Quaternary; Neotoma; Paleoclimate; paleoecology; taxonomically harmonized; temporally standardized
Supplement to:	Li, Chenzhi; Dallmeyer, Anne; Ni, Jian; Chevalier, Manuel; Willeit, Matteo; Andreev, Andrei A; Cao, Xianyong; Schild, Laura; Heim, Birgit; Herzschuh, Ulrike (in review): Global biome changes over the last 21,000 years inferred from model-data comparisons. https://doi.org/10.5194/egusphere-2024-1862
Related to:	Schild, Laura; Ewald, Peter; Li, Chenzhi; Hébert, Raphaël; Laepple, Thomas; Herzschuh, Ulrike (in review): LegacyVegetation 1.0: Global reconstruction of vegetation composition and forest cover from pollen archives of the last 50 ka. https://doi.org/10.5194/essd-2023-486
Other version:	Review Version of: LegacyPollen2.0: an updated global taxonomically and temporally standardized fossil pollen dataset of 3728 palynological records (URI: https://download.pangaea.de/reference/127195/attachments/ReviewVersion.zip) (Previous version used during article review)
	Herzschuh, Ulrike; Böhmer, Thomas; Li, Chenzhi; Cao, Xianyong; Heim, Birgit; Wieczorek, Mareike (2021): Global taxonomically harmonized pollen data set for Late Quaternary with revised chronologies (LegacyPollen 1.0) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.929773
Related code / software:	Schild, Laura (2024): lauraschild/LegacyVegetation: LegacyVegetation Analysis Code [software]. Zenodo, https://doi.org/10.5281/ZENODO.10159559
Further details:	Pollen taxa harmonisation table LegacyPollen2.0 (URI: https://download.pangaea.de/reference/128391/attachments/harmonization_table_new.tab)
	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Overview of taxonomically harmonized pollen records [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971802
Project(s):	Polar Terrestrial Environmental Systems @ AWI (AWI_Envi) (URI: https://www.awi.de/en/science/geosciences/polar-terrestrial-environmental-systems.html)
Coverage:	MEDIAN LATITUDE: 25.374965 * MEDIAN LONGITUDE: -177.460624 * SOUTH-BOUND LATITUDE: -62.164000 * WEST-BOUND LONGITUDE: 9.098400 * NORTH-BOUND LATITUDE: 79.740000 * EAST-BOUND LONGITUDE: -24.702600
	DATE/TIME START: 1938-06-26T00:00:00 * DATE/TIME END: 2020-03-14T00:00:00
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Size:	14 datasets
*/
/* TABULAR SUMMARY OF DATASETS LISTED IN THIS COLLECTION: */
Filename	Citation of child dataset
Li-etal_2024_Africa-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of African samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971691
Li-etal_2024_Africa-percentages.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of African samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971593
Li-etal_2024_Asia-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of Asian samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971655
Li-etal_2024_Asia-percentages.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of Asian samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971654
Li-etal_2024_Europe-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of European samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971692
Li-etal_2024_Europe-percentage.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of European samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971693
Li-etal_2024_Indopacific-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of Indopacific samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971719
Li-etal_2024_Indopacific-percentage.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of Indopacific samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971726
Li-etal_2024_NorthAmericaE-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of eastern North American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971797
Li-etal_2024_NorthAmericaE-percentage.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of eastern North American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971798
Li-etal_2024_NorthAmericaW-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of western North American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971804
Li-etal_2024_NorthAmericaW-percentage.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of western North American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971800
Li-etal_2024_SouthAmerica-counts.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen counts of South American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971788
Li-etal_2024_SouthAmerica-percentage.tab	Li, Chenzhi; Ni, Jian; Böhmer, Thomas; Cao, Xianyong; Zhou, Borui; Liao, Mengna; Li, Kai; Schild, Laura; Wieczorek, Mareike; Heim, Birgit; Herzschuh, Ulrike (2025): LegacyPollen2.0: Taxonomically harmonized pollen percentages of South American samples with revised chronologies. https://doi.org/10.1594/PANGAEA.971790
