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Phylogeny of the Metazoa Based on Morphological and 18S Ribosomal DNA Evidence
TLDR
A new phylogenetic classification of the Metazoa including 35 formally recognized phyla and most traditional “phyla” are monophyletic, except for Porifera, Cnidaria (excluding Myxozoa), Platyhelminthes, Brachiopoda, and Rotifera. Expand
Phylogeny and biogeography of Triatominae (Hemiptera: Reduviidae): molecular evidence of a New World origin of the Asiatic clade.
TLDR
Reinterpretation of triatomine biogeography points to the origin of Triatominie in northern areas of South America, in Central America, or in the southern region of North America, thus supporting a monophyletic origin ofTriatominae. Expand
Gastrotricha and metazoan phylogeny
TLDR
It is concluded that cycloneuralian and gastrotrich ancestors were multiciliate and had epidermal cilia covered by cuticular sheaths. Expand
Phylogeny of Annelida (Lophotrochozoa): total-evidence analysis of morphology and six genes
TLDR
The combined ("total-evidence") phylogenetic analysis provides a modified view of annelid evolution, with several higher-level taxa, i.e. the monophyly of the Aciculata, sister-group relationships between the Eunicida and OPC, between the Cirratuliformia and SSC, and possibly also between the "Clitellatomorpha" and Oweniidae-Pogonophora clades. Expand
The telomere repeat motif of basal Metazoa
TLDR
The results show that the ‘vertebrate’ telomere motif (TTAGGG)n is present in all basal metazoan groups, i.e. sponges, Cnidaria, Ctenophora, and Placozoa, and also in the unicellular metazoa sister group, the Choanozoa, and can be considered the ancestral telomeres repeat motif of Metazoa. Expand
Biogeography of the Mesoamerican Cichlidae (Teleostei: Heroini): colonization through the GAARlandia land bridge and early diversification
TLDR
A molecular phylogenetic and biogeographical analysis of the Mesoamerican cichlid fishes (Cichlidae: Cichlasomatinae: Heroini) shows a robust multigene phylogeny resolved from the deepest nodes to the species level, and does not support a direct colonization of Middle America from South America, or a Cretaceous–Palaeocene colonization through the proto-Antilles, as suggested by previous studies. Expand
The basic body plan of arthropods: insights from evolutionary morphology and developmental biology
TLDR
Comparative morphology as well as embryology of malacostracans and hexapods suggest that the basic boundary subdividing the mandibulate body into the primary embryonic regions, anterior protocephalon and posterior protocorm, runs anteriorly to parasegment PS1 of mandibular segment. Expand
Myzostomida Are Not Annelids: Molecular and Morphological Support for a Clade of Animals with Anterior Sperm Flagella
TLDR
A phylogenetic analysis of 18S and 28S ribosomal DNA sequence data of Myzostoma glabrum is presented to show that myzostomes are a sister group of the Cycliophora, closely related to the rotifer-acanthocephalan clade (= Syndermata). Expand
Ultrastructure, development, and homology of insect embryonic cuticles
TLDR
Differences between the modes of cuticulogenesis in silverfish and pterygotes embryos suggest that the apterygote first larval instar was embryonized and became a fully embryonic prolarva in pteryGotes. Expand
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