The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution

This paper provides a list of all named species in the family Olenidae, along with their geographic and stratigraphic records. It also discusses each of the valid genera in the family and describes the composition of the entire group and its subfamilies in terms of species and generic richness acro...

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Main Author: Daniela Soledad Monti
Format: Article
Language:English
Published: Asociación Paleontológica Argentina 2025-07-01
Series:Publicación Electrónica de la Asociación Paleontológica Argentina
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Online Access:http://peapaleontologica.org.ar/index.php/peapa/article/view/505
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author Daniela Soledad Monti
author_facet Daniela Soledad Monti
author_sort Daniela Soledad Monti
collection DOAJ
description This paper provides a list of all named species in the family Olenidae, along with their geographic and stratigraphic records. It also discusses each of the valid genera in the family and describes the composition of the entire group and its subfamilies in terms of species and generic richness across different periods and geographical areas. The family encompasses 64 genera and 394 species, primarily concentrated in the subfamilies Oleninae and Pelturinae (65.63% of the genera and 58.12% of the species). The Olenidae was first documented during the Guzhangian in Baltica, and subsequently, its range expanded globally to Eastern Gondwana (Australia), South China, and Siberia. The Furongian saw a peak in species diversity (61.88% of the total) and widespread distribution. During the Tremadocian, the number of species declined, yet the geographic range persisted, and this decrease continued for the rest of the Ordovician. Although the family is cosmopolitan, Baltica and Avalonia host almost half of the records (46.71%). Challenges in olenid systematics include species lacking proper illustrations and/or lost type materials, poorly diagnosed genera, and potential polyphyletic larger families. The study emphasizes the importance of precise species and genus delimitation. The dataset presented serves as an initial step in achieving a clearer phylogenetic classification of the family Olenidae.
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spelling doaj-art-40f6f9885eff412797e53d164dcd483a2025-08-20T03:34:13ZengAsociación Paleontológica ArgentinaPublicación Electrónica de la Asociación Paleontológica Argentina2469-02282025-07-0125210.5710/PEAPA/21.10.2024.505The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distributionDaniela Soledad Monti0Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), UBA - CONICET This paper provides a list of all named species in the family Olenidae, along with their geographic and stratigraphic records. It also discusses each of the valid genera in the family and describes the composition of the entire group and its subfamilies in terms of species and generic richness across different periods and geographical areas. The family encompasses 64 genera and 394 species, primarily concentrated in the subfamilies Oleninae and Pelturinae (65.63% of the genera and 58.12% of the species). The Olenidae was first documented during the Guzhangian in Baltica, and subsequently, its range expanded globally to Eastern Gondwana (Australia), South China, and Siberia. The Furongian saw a peak in species diversity (61.88% of the total) and widespread distribution. During the Tremadocian, the number of species declined, yet the geographic range persisted, and this decrease continued for the rest of the Ordovician. Although the family is cosmopolitan, Baltica and Avalonia host almost half of the records (46.71%). Challenges in olenid systematics include species lacking proper illustrations and/or lost type materials, poorly diagnosed genera, and potential polyphyletic larger families. The study emphasizes the importance of precise species and genus delimitation. The dataset presented serves as an initial step in achieving a clearer phylogenetic classification of the family Olenidae. http://peapaleontologica.org.ar/index.php/peapa/article/view/505OlenidaeDescriptive statisticsStratigraphic distributionPaleogeographic distributionCambrianOrdovician
spellingShingle Daniela Soledad Monti
The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
Publicación Electrónica de la Asociación Paleontológica Argentina
Olenidae
Descriptive statistics
Stratigraphic distribution
Paleogeographic distribution
Cambrian
Ordovician
title The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
title_full The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
title_fullStr The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
title_full_unstemmed The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
title_short The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution
title_sort family olenidae trilobita arthropoda a synopsis of its taxonomic composition stratigraphic and paleogeographic distribution
topic Olenidae
Descriptive statistics
Stratigraphic distribution
Paleogeographic distribution
Cambrian
Ordovician
url http://peapaleontologica.org.ar/index.php/peapa/article/view/505
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