cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.wgv6f2
title: Occurrence Download

description: A dataset containing 153 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Potamonautes gonocristatus Bott, 1955, Ambystoma dumerilii (Dugès, 1870), Aethiothemis palustris Martin, 1912, Lestradea stappersii (Poll, 1943), Rhamphochromis ferox Regan, 1922, Labidochromis flavigulis Lewis, 1982, Parathelphusa sarasinorum (Schenkel, 1902), Coregonus hoferi Berg, 1932, Rhamphichthys atlanticus Triques, 1999, Hemichromis exsul (Trewavas, 1933), Potamopyrgus dawbini Powell, 1955, Hygrophila mediatrix Heine, Cyperus hamulosus M.Bieb., Heleobia florezii (Weyrauch, 1963), Carex tuckermanii Boott, Indigofera pseudoparvula R.Vig., Isoetes todaroana Troìa & Raimondo)",
 "BasisOfRecord is one of (Specimen, Observation, Machine Observation)",
 "Year is greater than or equal to 1992",
 "Year is less than or equal to 2018"
 ]
}

 The dataset includes 153 records from 25 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0331998-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.w1odbi
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Oedothorax gibbifer (Kulczyński, 1882)"
 ]
}

 The dataset includes 11 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001652-150330110031120/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.d9ntf9
title: Occurrence Download

description: A dataset containing 1660 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Verticillium dahliae Kleb."
 ]
}

 The dataset includes 1660 records from 50 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005299-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zzot00
title: Occurrence Download

description: A dataset containing 13 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dracophyllum pubescens Cheeseman",
 {
 "or" : [
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Observation"
 ]
 },
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 13 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032991-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uqh6eq
title: Occurrence Download

description: A dataset containing 574 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Africa",
 "Country is South Africa",
 "TaxonKey is Tithonia diversifolia (Hemsl.) A.Gray"
 ]
}

 The dataset includes 574 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0050922-231002084531237/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yvc3be
title: Occurrence Download

description: A dataset containing 938 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Myosotis palustris",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 938 records from 40 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001652-150410134957023/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9khwgw
title: Occurrence Download

description: A dataset containing 106 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Parnassia oreophila Hance"
 ]
}

 The dataset includes 106 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0331999-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qlg81u
title: Occurrence Download

description: A dataset containing 679 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Inventaire National du Patrimoine Naturel : Programme national espèces végétales de la Directive Habitat"
 ]
}

 The dataset includes 679 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001652-150512124619364/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p3qhgb
title: Occurrence Download

description: A dataset containing 32448964 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is North America",
 "Country is Canada",
 "GadmGid is CAN.11_1",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 32448964 records from 740 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005303-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wuxhqw
title: Occurrence Download

description: A dataset containing 32 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Piper perverrucosum Trel. & Yunck."
 ]
}

 The dataset includes 32 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0190206-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mkzlm4
title: Occurrence Download

description: A dataset containing 14253 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Pennisetum glaucum (L.) R.Br.",
 "HasGeospatialIssue is false",
 "HasCoordinate is true"
 ]
}

 The dataset includes 14253 records from 116 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001652-150528172251762/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hd5stq
title: Occurrence Download

description: A dataset containing 1265 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Plethodon cheoah Highton & Peabody, 2000)"
 ]
}

 The dataset includes 1265 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006181-240202131308920/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.c9g2w6
title: Occurrence Download

description: A dataset containing 1012920 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Sylvia curruca (Linnaeus, 1758))",
 "HasCoordinate is true",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation)",
 "Year is greater than or equal to 1970",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 1012920 records from 931 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053405-231002084531237/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/z9x-nzj-dby
title: Depressaria sordidatella Tengström, 1848

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/m50-qf0-3xa
title: Polyommatus icarus (von Rottemburg, 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/dbr-afj-mqg
title: Herminia grisealis ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/z9d-cda-qqr
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/dt5-y8e-9qa
title: Polygonia c-album (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ks4-yqs-rws
title: Animalia

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/cca-x76-m9a
title: Cerastis rubricosa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/m9h-e3y-b5b
title: Pararge Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rr6-mgx-get
title: Polygonia c-album (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8d6-50n-yh9
title: Polygonia c-album (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/vck-8xy-g4n
title: Nola cucullatella (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ta6-44b-ll0
title: Lithophane (Lithophane) consocia Borkhausen, 1792

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/twn-sdd-fkl
title: Acronicta (Acronicta) leporina (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.15468/dl.4jdcfz
title: Occurrence Download

description: A dataset containing 5613 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Schoenoplectus californicus"
 ]
}

 The dataset includes 5613 records from 297 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032127-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/9mt-6wc-92r
title: Meganola strigula ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/5wh-mqj-7za
title: Oeneis jutta Hübner, 1806

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/e5g-beh-tc7
title: Boloria Moore, 1900

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/1zj-gy0-6qc
title: Boloria Moore, 1900

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/t8a-k9v-3mk
title: Boloria Moore, 1900

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.17026/ar/vxe0lj
title: PAN-00178459 - base fragment (terra sigillata)

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00178459&lt;/p&gt;
description: Modified: 2025-08-14T11:18:54+02:00
DOI: 10.3535/7rc-xaa-d0f
title: Animalia

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fr2-074-9aj
title: Crambus hamella Thunberg, 1788

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ad4-gys-pae
title: Plebejus argus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kmk-0yb-tgj
title: Animalia

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/zdr-k39-ve7
title: Cerastis rubricosa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/vy4-81d-a7w
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/yfj-eyj-27k
title: Depressaria sordidatella Tengström, 1848

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/5mc-vw5-8lw
title: Acronicta (Subacronicta) megacephala ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/hh6-h4m-49a
title: Depressaria sordidatella Tengström, 1848

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/0v4-w64-3xl
title: Acronicta (Subacronicta) megacephala ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/2zb-vg3-fhn
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/f3p-gsl-w6k
title: Lithophane (Lithophane) consocia Borkhausen, 1792

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/cyg-k86-xw4
title: Issoria lathonia (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/4m3-4ad-17g
title: Crambus nemorella Hübner

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/c12-0cj-maz
title: Plebejus argus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/lws-wxg-q65
title: Nycteola degenerana (Hübner, 1799)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/m23-r6t-7zx
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/3yc-3k7-9sj
title: Sitochroa verticalis Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/gdc-278-z1j
title: Plebejus argus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/4jj-28f-c23
title: Autographa bractea ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/dfa-807-43s
title: Depressaria sordidatella Tengström, 1848

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/195-dvr-v9s
title: Cosmia (Calymnia) trapezina (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fny-307-1ld
title: Polygonia c-album (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/p6d-tq2-l06
title: Crambus nemorella Hübner

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/x1v-s6q-a7a
title: Depressaria sordidatella Tengström, 1848

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/nnz-2mw-8lc
title: Donacaula mucronella [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/p2v-kxe-n5n
title: Polygonia c-album (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/h08-mde-mwj
title: Xylena (Lithomoia) solidaginis Hübner, 1803

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/mwm-xy4-spb
title: Euxoa (Euxoa) tritici Linnaeus, 1761

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/tzz-zxf-t9p
title: Pararge Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/q63-g74-vhl
title: Pararge Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8q7-8ve-nsx
title: Hypena crassalis (Fabricius, 1787)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/bcg-ezd-c17
title: Amphipoea fucosa Freyer, 1830

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/7xl-tr9-w1v
title: Lycaena virgaureae (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/e75-whw-bbe
title: Lycaena virgaureae (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ny3-dr7-swf
title: Hada plebeja Linnaeus, 1761

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/p5n-x7n-hfp
title: Herminia grisealis ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/h8d-1by-j5h
title: Lycaena virgaureae (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/aea-7n4-tq6
title: Fabriciana niobe (Linnaeus, 1761)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/nzz-9n1-2k5
title: Hada plebeja Linnaeus, 1761

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/bew-p7m-v51
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/lky-1q9-jdv
title: Catoptria margaritellus [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/897-lye-5bv
title: Apamea (Apamea) monoglypha (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/jy7-fpz-0zb
title: Sideridis (Heliophobus) reticulata Goeze, 1781

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/sy9-5v5-gfm
title: Sideridis (Heliophobus) reticulata Goeze, 1781

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/1f3-zl6-rkf
title: Opigena polygona [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/djl-wsq-5dn
title: Eumedonia eumedon (Esper, 1780)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/6x4-y05-5vm
title: Cosmia (Calymnia) trapezina (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fv6-6ct-kt5
title: Polyommatus icarus (von Rottemburg, 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/5z0-gq9-g6h
title: Amphipoea fucosa Freyer, 1830

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.5281/zenodo.17795113
title: Data and code from: Synthesis of molecular data on Mactroidea (Bivalvia): phylogenetic implications and open questions

description: Abstract

Molecular phylogenetics have clarified high-level evolutionary relationships across the tree of life but sampling is highly uneven at lower levels, particularly for marine organisms. Here, we synthesize all publicly available Sanger sequence data for the diverse but under-sampled marine bivalve superfamily Mactroidea to provide a unified molecular and paleontological framework, and to guide targeted sampling to elucidate the group’s evolutionary history. We infer two complementary phylogenetic estimates, one using a comprehensive eight-gene alignment that maximizes taxon sampling, and a second high-coverage three-gene alignment that maximizes molecular coverage. Both phylogenies are largely concordant with morphology-based classifications at the genus and subgenus levels, but reveal that the three recognized mactroid families and the subfamilies of Mactridae are not reciprocally monophyletic. Among the genera, evidence suggests that Pseudocardium is not in the present-day fauna, and that Coelomactra, Longimactra, Spisulona, and Taria, often synonymized to various extant taxa, may be valid genera or subgenera, although further molecular data are needed to confirm these taxonomic implications. Budding-informed time-calibration using 27 fossil constraints reveals several conflicts between fossil ages and the inferred molecular topology, likely owing to incomplete fossil and molecular sampling and ambiguity of certain fossil assignments. By tabulating conflicting or missing data, we identify priorities for future molecular sampling, and show that gaps in the molecular data are unevenly distributed geographically, with concentrations in the East Pacific and New Zealand. Combined phylogenetic, biogeographic, and paleontologic inventories, supported by voucher-based verification of specimens, can guide targeted sampling to efficiently improve understanding of within-clade relationships and evolutionary dynamics in Mactroidea.
DOI: 10.5281/zenodo.17795114
title: Data and code from: Synthesis of molecular data on Mactroidea (Bivalvia): phylogenetic implications and open questions

description: Abstract

Molecular phylogenetics have clarified high-level evolutionary relationships across the tree of life but sampling is highly uneven at lower levels, particularly for marine organisms. Here, we synthesize all publicly available Sanger sequence data for the diverse but under-sampled marine bivalve superfamily Mactroidea to provide a unified molecular and paleontological framework, and to guide targeted sampling to elucidate the group’s evolutionary history. We infer two complementary phylogenetic estimates, one using a comprehensive eight-gene alignment that maximizes taxon sampling, and a second high-coverage three-gene alignment that maximizes molecular coverage. Both phylogenies are largely concordant with morphology-based classifications at the genus and subgenus levels, but reveal that the three recognized mactroid families and the subfamilies of Mactridae are not reciprocally monophyletic. Among the genera, evidence suggests that Pseudocardium is not in the present-day fauna, and that Coelomactra, Longimactra, Spisulona, and Taria, often synonymized to various extant taxa, may be valid genera or subgenera, although further molecular data are needed to confirm these taxonomic implications. Budding-informed time-calibration using 27 fossil constraints reveals several conflicts between fossil ages and the inferred molecular topology, likely owing to incomplete fossil and molecular sampling and ambiguity of certain fossil assignments. By tabulating conflicting or missing data, we identify priorities for future molecular sampling, and show that gaps in the molecular data are unevenly distributed geographically, with concentrations in the East Pacific and New Zealand. Combined phylogenetic, biogeographic, and paleontologic inventories, supported by voucher-based verification of specimens, can guide targeted sampling to efficiently improve understanding of within-clade relationships and evolutionary dynamics in Mactroidea.