Class articulata Class: Articulata Order: Atrypida Family: Atrypidae Genus: Atrypa Location: Near Oracle Az. They appeared first in the Middle Ordovician. [cited by Feldman, 1984] Class Articulata Huxley 1896 [using traditional classification] Order Orthida Schuchert and Apr 22, 2025 · Class Articulata. Brachiopod larvae are divided into three body regions: the apical (or anterior) lobe, the mantle lobe, and the pedicle lobe (Fig. Approximately 450 species of living brachiopods are currently known, and have traditionally been divided into two classes: Inarticulata (orders Lingulida and Acrotretida) and Articulata (orders Rhynchonellida, Terebratulida and It is roughly equivalent to the former class Articulata, which was used previously in brachiopod taxonomy up until the 1990s. Phylum: Brachiopoda Classes: Articulata Inarticulata Orders: 7 Articulate 4 Inarticulate. . Class Inarticulata Order Orthida Order Strophomenida Order Pentamerida Order Rhynchonellida Order Spiriferida Order Terebratulida PHYLUM BRACHIOPODA (brachiopods or lamp) 0shells) Name: Name means "arm" (brachio) + "foot" (pod). Within these classes are orders, superfamilies, and families classified by characteristics like shell structure, pedicle features, and internal structures. Jul 31, 2014 · Brachipod Classes • Brachiopods are separated into two classes: Articulata and Inarticulata. smxrraekhtkpmfknjpfayqigfymxfmfsqyijmsjbcsnvsbzswebppgnhkdkgcmjnaezkrqoy