Physical Description

Morphology

Other Physical Features: ectothermic ; bilateral symmetry

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Source: Animal Diversity Web

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Evolution and Systematics

Evolution

Classification

Established as an order containing the "Sippe" [= superfamilies] Zeugobranchia, Patellacea, Trochacea, Neritacea and Cocculinacea. Spelling emended to Archeogastropodida by Anderson (1992: 36). Thiele (1925) included the three orders Archeogastropoda, Mesogastropoda, Neogastropoda in his concept of the subclass Prosobranchia, in a classification which has been a standard throughout the remainder of the XXth century and is still presented in current zoology textbooks (e.g. Brusca & Brusca, 2003). Currently the Archeogastropoda and Mesogastropoda are rebutted as paraphyletic, whereas Neogastropoda is considered a monophyletic group and therefore still accepted (as an order of the Caenogastropoda). Extant families formerly included in the Archeogastropoda are now distributed in the subclasses Patellogastropoda, Vetigastropoda, Cocculiniformia and Neritimorpha, whereas some extinct families remain with an unresolved phylogenetic position (not asigned to a subclass) within the Gastropoda.
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Source: World Register of Marine Species

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:3524
Specimens with Sequences:2588
Specimens with Barcodes:1931
Species:287
Species With Barcodes:249
Public Records:2273
Public Species:212
Public BINs:302
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

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Source: Barcode of Life Data Systems (BOLD)

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