• Corpus ID: 18621320

Phylogeny of the Terrestrial Isopoda (Oniscidea): a Review

  title={Phylogeny of the Terrestrial Isopoda (Oniscidea): a Review},
  author={Christiane Schmidt},
Recent hypotheses on the phylogeny of the Oniscidea are summarized. The position of the Oniscidea in the phylogenetic system of the Isopoda is discussed. Within the Oniscidea, phylogenetic relationships are considered mainly down to „family“ level. Well founded monophyletic clades are discussed and unresolved and problematic regions are pointed out. A list of probable autapomorphies is given for each taxon. The knowledge on the fossil record of Oniscidea is reviewed briefl y. Finally it is… 

Phylogeny of Terrestrial Isopods Based on the Complete Mitochondrial Genomes, Subvert the Monophyly of Oniscidea

The constructed phylogenetic analyses show that Oniscidea is polyphyletic group, with Ligia being more closely related to marine isopods (Valvifera, Cymothoida, and Sphaeromatidea) than other exact terrestrial isopod groups.

Molecular phylogenetic analyses reveal a new southern hemisphere oniscidean family (Crustacea : Isopoda) with a unique water transport system

This study presents phylogenetic analyses using 28S-only and combined 18S, 28S rDNA and mitochondrial cytochrome c oxidase subunit I (COI) data, and presents results for a detailed morphological study of the antennae and other cephalic structures of exemplar taxa.

Genetic evidence against monophyly of Oniscidea implies a need to revise scenarios for the origin of terrestrial isopods

This work employed the highly conserved, nuclear protein-coding genes Sodium-Potassium Pump and Phosphoenolpyruvate Carboxykinase and produced a robust and fully resolved phylogenetic tree that offers strong evidence against the monophyly of Oniscidea.

The origin of terrestrial isopods (Crustacea: Isopoda: Oniscidea)

A pre-Pangaean origin of the Oniscidea is discussed and supported, in the Late Paleozoic—most likely during the Carboniferous, to replace this group in a deep-time context.

Taxonomic revision of Brasiloniscus (Oniscidea, Pudeoniscidae) with description of a new species

The Neotropical genus Brasiloniscus is revised and validated, and B. maculatus is designated as the type species of the genus, and the genus name will thus be available for the systematics of Oniscidea.

A molecular phylogeny of Porcellionidae (Isopoda, Oniscidea) reveals inconsistencies with present taxonomy

The status of Porcellionidae should be further revised and morphological characters traditionally used in Oniscidea taxonomy should be reconsidered in view of molecular evidence.

The phylogenetic position of the Isopoda in the Peracarida (Crustacea: Malacostraca)

The 18S data alone are inadequate at this phylogenetic level and the combined data provided novel hypotheses that require additional evidence from detailed morphological studies and DNA markers for confi rmation.

A new genus of terrestrial isopods (Crustacea: Oniscidea: Armadillidae) in Myanmar amber

ABSTRACT A female terrestrial isopod in amber from Myanmar is described as Palaeoarmadillo microsoma gen. et sp. n. (Isopoda: Oniscidea: armadillidae). Placement in the family Armadillidae is based

Terrestrial Isopods from Spanish Amber (Crustacea: Oniscidea): Insights into the Cretaceous Soil Biota

A new collection of 11 terrestrial isopod specimens preserved in Albian-aged amber from the Peñacerrada I outcrop, northern Spain, which collectively represent the most thoroughly documented fauna of Mesozoic Oniscidea, indicating that Cretaceous isopods were a group of considerable adaptive diversity, exhibiting innovations analogous to what Recent isopoda would exhibit 105 million years later.

An evolutionary timescale for terrestrial isopods and a lack of molecular support for the monophyly of Oniscidea (Crustacea: Isopoda)

The results suggest that the terrestrial environment has been colonized more than once by isopods, and the monophyly of the suborder Oniscidea was not supported in any of the analyses, conflicting with classical views based on morphology.



Contribution to the phylogenetic system of the Crinocheta (Crustacea, Isopoda). Part 2. (Oniscoidea to Armadillidiidae)†

The phylogenetic Relations between the families of Crinocheta (Isopoda, Oniscidea) are analysed and some data on the biogeography of several taxa are discussed in the context of their phylogenetic relations.

Contribution to the phylogenetic system of the Crinocheta (Crustacea, Isopoda). Part 1. (Olibrinidae to Scyphacidae s. str.)†

The phylogenetic Relations between the families of Crinocheta (Isopoda, Oniscidea) are analysed and some data on the biogeography of several taxa are discussed in the context of their phylogenetic relations.

Nutrition in terrestrial isopods (Isopoda: Oniscidea): an evolutionary‐ecological approach

  • M. Zimmer
  • Environmental Science, Biology
    Biological reviews of the Cambridge Philosophical Society
  • 2002
This review focuses on the evolutionary ecology of feeding in terrestrial isopods, which plays an important role in decomposition processes through mechanical and chemical breakdown of plant litter and by enhancing microbial activity.


These mitochondrial genes corroborate isopod clades previously recognized on morphological grounds, and in other instances, suggest relationships not previously proposed, i.e., valviferans had a sphaeromatid ancestor, and oniscids and sphaERomatids may be more closely related than previously thought.

Molecular evolution of the small subunit ribosomal DNA in woodlice (Crustacea, Isopoda, Oniscidea) and implications for Oniscidean phylogeny.

The phylogenetic analyses of the ssu rDNA support a repeated independent evolution of the three different types of pleopodal lungs in the Crinochaeta.

Molecular phylogeny and phylogeography of the Greek populations of the genus Orthometopon (Isopoda, Oniscidea) based on mitochondrial DNA sequences

The distinct geographical distribution of the major clades of the phylogenetic tree and its topology suggest a spatial and temporal sequence of phylogenetic separations, which coincide with some major palaeogeographical separations during the geological history of the Aegean Sea.


The results of maximum parsimony analyses are congruent with major aspects of earlier hypotheses on isopod phylogeny and a major monophyletic group found in the molecular phylogenies and also supported by distinct morphological characters is named Scutocoxifera tax.

Two new species of Palaega (Isopoda: Cymothoida: Cirolanidae) from the Upper Jurassic of the Swabian Alb, South Germany

Two new cirolanid isopod species are described: Palaega willmandingensis n.


The present volume relating to Crustacea and Echinodermata collected by Mr. Vanderbilt is full of interesting material, and among the Caridea there are many new species.