cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.nfcc88
title: Occurrence Download

description: A dataset containing 51 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Brickellia sonorana B.L.Turner"
 ]
}

 The dataset includes 51 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0150906-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.se4g6m
title: Occurrence Download

description: A dataset containing 1260 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Country is one of (Chile, Argentina)",
 {
 "or" : [
 "Geometry POLYGON((-68.698 -55.513,-68.29 -55.513,-68.94898 -55.09084,-70.511 -53.9,-68.698 -55.513))",
 "Geometry POLYGON((-70.511 -53.9,-68.698 -55.513,-68.28998 -55.513,-70.115 -53.779,-70.511 -53.9))"
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Plantae"
 ]
}

 The dataset includes 1260 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009332-231002084531237/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-2200
title: Seiatel' istiny = The sower of truth, vol. 18, no. 2 (February 1933)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.u5yqms
title: Occurrence Download

description: A dataset containing 48 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON ((-83.1036464999999964 42.3271761000000026, -83.1036464999999964 42.3297628500000016, -83.1036464999999964 42.3330393999999970, -83.1036464999999964 42.3359710499999977, -83.1036464999999964 42.3375230999999985, -83.1036464999999964 42.3402822999999984, -83.1036464999999964 42.3444210999999981, -83.1000287199999974 42.3444210999999981, -83.0969279300000068 42.3444210999999981, -83.0919322000000022 42.3444210999999981, -83.0867642099999983 42.3444210999999981, -83.0845247400000062 42.3444210999999981, -83.0797010999999941 42.3444210999999981, -83.0797010999999941 42.3418343499999992, -83.0797010999999941 42.3395925000000020, -83.0797010999999941 42.3357985999999968, -83.0797010999999941 42.3323496000000006, -83.0797010999999941 42.3292454999999990, -83.0797010999999941 42.3271761000000026, -83.0821130100000005 42.3271761000000026, -83.0860751400000055 42.3271761000000026, -83.0907263299999954 42.3271761000000026, -83.0950330000000008 42.3271761000000026, -83.0998564599999980 42.3271761000000026, -83.1036464999999964 42.3271761000000026))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1932",
 "BasisOfRecord is one of (Human Observation, Living Specimen, Observation, Specimen, Machine Observation)"
 ]
}

 The dataset includes 48 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0150920-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ncxt9k
title: Occurrence Download

description: A dataset containing 29196 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Eswatini",
 "Geometry POLYGON((6.35974 -32.16006,62.63383 -32.16006,62.63383 -9.66006,6.35974 -9.66006,6.35974 -32.16006))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Tracheophyta"
 ]
}

 The dataset includes 29196 records from 40 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014268-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-2245
title: Seiatel' istiny = The sower of truth, vol. 18, no. 5-6 (May-June 1933)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.bax3mm
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON ((-83.2190887000000004 42.4157616999999973, -83.2190887000000004 42.4166376000000014, -83.2190887000000004 42.4177324799999980, -83.2190887000000004 42.4189733500000017, -83.2190887000000004 42.4206521600000031, -83.2190887000000004 42.4216740500000000, -83.2190887000000004 42.4230609000000030, -83.2180684000000070 42.4230609000000030, -83.2166110099999941 42.4230609000000030, -83.2152993499999951 42.4230609000000030, -83.2131861299999969 42.4230609000000030, -83.2114372500000030 42.4230609000000030, -83.2091053000000045 42.4230609000000030, -83.2091053000000045 42.4221849999999989, -83.2091053000000045 42.4208711400000027, -83.2091053000000045 42.4200682299999983, -83.2091053000000045 42.4189003600000021, -83.2091053000000045 42.4175864999999988, -83.2091053000000045 42.4157616999999973, -83.2102713400000056 42.4157616999999973, -83.2120930800000025 42.4157616999999973, -83.2135504799999950 42.4157616999999973, -83.2158094400000010 42.4157616999999973, -83.2171939600000030 42.4157616999999973, -83.2190887000000004 42.4157616999999973))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1932",
 "BasisOfRecord is one of (Human Observation, Living Specimen, Observation, Specimen, Machine Observation)"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0150933-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-2193
title: Seiatel' istiny = The sower of truth, vol. 18, no. 2 (February 1933)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.j6wpy7
title: Occurrence Download

description: A dataset containing 29196 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Eswatini",
 "Geometry POLYGON((6.35974 -32.16006,62.63383 -32.16006,62.63383 -9.66006,6.35974 -9.66006,6.35974 -32.16006))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Tracheophyta"
 ]
}

 The dataset includes 29196 records from 40 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014271-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-2191
title: Seiatel' istiny = The sower of truth, vol. 18, no. 2 (February 1933)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.cpg5br
title: Occurrence Download

description: A dataset containing 182 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Micrurus elegans Jan, 1858"
 ]
}

 The dataset includes 182 records from 46 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0325083-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5gy2xt
title: Occurrence Download

description: A dataset containing 372 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Spalax zemni (Erxleben, 1777)"
 ]
}

 The dataset includes 372 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0016850-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-2143
title: Seiatel' istiny = The sower of truth, vol. 18, no. 1 (January 1933)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.jcamxw
title: Occurrence Download

description: A dataset containing 30604 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Polyommatus carmon, Polyphylla fullo (Linnaeus, 1758), Polypodium interjectum Shivas)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 30604 records from 312 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0325068-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.gj36ru
title: Occurrence Download

description: A dataset containing 55 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Ethiopia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Prunus africana (Hook.fil.) Kalkman"
 ]
}

 The dataset includes 55 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0016856-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-1223
title: Maiak = [Lighthouse], vol. 14, no. 1 (1936)

description: [description english/roman)] Monthly
DOI: 10.25549/pcra-c14-15468
title: Gost' = The guest, vol. [6], no. 5 (May 1916)

description: [description english/roman)] [Monthly]
DOI: 10.15468/dl.d9w57m
title: Occurrence Download

description: A dataset containing 80 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Machine Observation"
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Proechimys canicollis (J.A.Allen, 1899)",
 "Year 1910-2022"
 ]
}

 The dataset includes 80 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0325090-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k6e252
title: Occurrence Download

description: A dataset containing 11881 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is RATO - daily operations commissioned by the province East Flanders, Belgium"
 ]
}

 The dataset includes 11881 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011009-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-993
title: Maiak = [Lighthouse], vol. 12, no. 8 (1934)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.4qrpbu
title: Occurrence Download

description: A dataset containing 58 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Echinogobius hayashii Iwata, Hosoya & Niimura, 1998"
 ]
}

 The dataset includes 58 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0069067-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.csynux
title: Occurrence Download

description: A dataset containing 124 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "TaxonKey is Anolis scypheus Cope, 1864"
 ]
}

 The dataset includes 124 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015032-231002084531237/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-14269
title: Druzheskoe slovo = Palavra do amigo = [A friendly word], vol. 2, no. 12 (December 1929)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.y9fmxt
title: Occurrence Download

description: A dataset containing 26 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rhodeus spinalis Oshima, 1926"
 ]
}

 The dataset includes 26 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0314163-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-13431
title: Put' = Voie = [The way], no. 45 (October-December 1934)

description: [description english/roman)] Irregular frequency
DOI: 10.15468/dl.jx4qw6
title: Occurrence Download

description: A dataset containing 335 species occurrences available in GBIF matching the query:
{
 "and" : [
 "CoordinateUncertaintyInMeters 0.0-920.0",
 "Geometry POLYGON((-74.72316 10.4117,-75.46593 9.43618,-75.04149 7.61736,-75.71351 6.31837,-75.78425 4.41687,-76.27943 3.07573,-77.02219 2.36913,-76.52702 1.62683,-74.54631 1.59147,-73.94503 4.24053,-73.83892 5.89635,-73.13152 7.79261,-73.48522 8.9823,-74.15725 10.27252,-74.72316 10.4117))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Vespertilionidae",
 "Year 2000-2023"
 ]
}

 The dataset includes 335 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000935-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.un55fp
title: Occurrence Download

description: A dataset containing 158753 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Polypodium vulgare L., Polyporus arcularis (Batsch.) Fr., Polyporus brumalis Pers.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 158753 records from 479 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0325084-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.de7669
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Liberia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Piptadeniastrum africanum (Hook.f.) Brenan"
 ]
}

 The dataset includes 43 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0016854-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2hcprv
title: Occurrence Download

description: A dataset containing 1464 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Argentina",
 "GadmGid is ARG",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Batara cinerea (Vieillot, 1819)",
 "Year 2008-2021"
 ]
}

 The dataset includes 1464 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0150945-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.auq3bg
title: Occurrence Download

description: A dataset containing 784 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-133.43860 8.09564,33.43860 8.09564,33.43860 74.90436,-133.43860 74.90436,-133.43860 8.09564))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Faxonius immunis (Hagen, 1870)"
 ]
}

 The dataset includes 784 records from 19 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0016860-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.q7qezp
title: Occurrence Download

description: A dataset containing 140 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is COL.24_1",
 "TaxonKey is Ontherus lunicollis Génier, 1996",
 "Year 1000-2010"
 ]
}

 The dataset includes 140 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0326400-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8asquj
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Sphaerosporella brunnea (Alb. & Schwein.) Svrček & Kubička",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 1900",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 {
 "or" : [
 "GadmGid is USA.1_1",
 "GadmGid is USA.11_1",
 "GadmGid is USA.25_1",
 "GadmGid is USA.41_1",
 "GadmGid is USA.34_1",
 "GadmGid is USA.43_1",
 "GadmGid is USA.18_1",
 "GadmGid is USA.47_1",
 "GadmGid is USA.49_1",
 "GadmGid is USA.15_1",
 "GadmGid is USA.19_1",
 "GadmGid is USA.4_1",
 "GadmGid is USA.26_1",
 "GadmGid is USA.14_1",
 "GadmGid is USA.36_1",
 "GadmGid is USA.39_1",
 "GadmGid is USA.21_1",
 "GadmGid is USA.16_1",
 "GadmGid is USA.8_1",
 "GadmGid is USA.31_1"
 ]
 },
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is one of (MANAGED, INTRODUCED)"
 ]
 }
 },
 "EstablishmentMeans is null"
 ]
 },
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 10000",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 4 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004810-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rdez2y
title: Occurrence Download

description: A dataset containing 2062 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is one of (CAN, USA)",
 "OccurrenceStatus is Present",
 "TaxonKey is Boletus edulis Bull."
 ]
}

 The dataset includes 2062 records from 24 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0273110-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.anf2bd
title: Occurrence Download

description: A dataset containing 101 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "MediaType is Image",
 "OccurrenceStatus is Present",
 "TaxonKey is one of (Indigofera simplicifolia Lam., Indigofera simplicifolia B.Heyne)"
 ]
}

 The dataset includes 101 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018858-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.28822523
title: Genomic Correlations, Shared Loci, and Drug Targets between Polycystic Ovary Syndrome and Asthma: Insights from Genome-wide Association Analysis

description: Supplementary Information on Genomic Correlations, Shared Loci, and Drug Targets between Polycystic Ovary Syndrome and Asthma: Insights from Genome-wide Association Analysis
DOI: 10.6084/m9.figshare.28743094
title: New horsetail macrofossils from the Lower Cretaceous of the Laiyang Basin, Eastern China, and biogeographic analyses

description: <i>Equisetum</i>, the sole-living representative of Sphenopsida, is considered as a ‘living fossil’, with impressive species richness and a long fossil history dating back to the Devonian. It is regarded as a key taxon in attempting to understand the evolution of vascular plants. Here, we describe a new species, <i>Equisetum shandongensis sp. nov</i>. from the Early Cretaceous of the Laiyang Formation in Laiyang Basin, Shandong Province, eastern China. This species is the first record of horsetails from the Laiyang Basin, and it consists of relatively complete stems with distinct leaf sheaths, sporangiate spikes with helically arranged pentagonal sporangiophores, underground rhizomes, and tubers. The close affinity of our fossils to <i>Equisetum</i> is supported by the presence of both macromorphological and epidermal characters. This new species deepens our understanding of the diversity and distribution range of the early <i>Equisetum</i> in the Lower Cretaceous. The biogeographic distribution of <i>Equisetum</i> has been evaluated based on the phylogenetic and biogeographic analyses, which lead to the speculation that the subgenus <i>Equisetum</i> derived from the Laurasian clade no later than the Early Cretaceous.