Linguloidea

	Linguloidea Linguloidea is a superfamily of brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, w ...s. References Lingulata Animal superfamilies {{brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Lingulellotretidae Lingulellotretidae is an extinct family of brachiopods, with an extended pseudointerarea, including some soft-shelled representatives. The lingulellotretids are possibly close relatives of the Siphonotretida, Siphonotretids. Soft tissue is occasionally known.Zhang, Z., Han, J., Zhang, X., Liu, J., Guo, J., and Shu, D. (2007). Note on the gut preserved in the Lower Cambrian Lingulellotreta (Lingulata, Brachiopoda) from southern China. Acta Zool. 88, 65–70. References Brachiopod families {{paleo-protostome-stub Cambrian genus extinctions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Lingulidae ''Lingula'' is a genus of brachiopods within the class Lingulata. ''Lingula'' or forms very close in appearance have existed possibly since the Cambrian. Like its relatives, it has two unadorned organo-phosphatic valves and a long fleshy stalk. ''Lingula'' lives in burrows in barren sandy coastal seafloor and feeds by filtering detritus from the water. It can be detected by a short row of three openings through which it takes in water (sides) and expels it again (middle). Anatomy and morphology Shell A shell encloses the organs and other internal parts of the body, except for a long, fleshy stalk (or pedicle) that extends from the tail (or posterior) end of the shell. This shell has two nearly identical tan or bronze valves, that are often tinged greenish or bluegreenish. These are held together by muscles between them. The valves are secreted by two mantle folds, one on the dorsal and one on the ventral side of the body. The valves are composed of chitin, protein, and calci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Obolidae Obolidae is a family of extinct brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, w ...s. Species Obolidae species include:Emig C. C., Bitner M. A. & Álvarez F., 2019Linguliformea Brachiopoda database. Accessed 2020-09-27. '' Obolus apollinis'' Eichwald, 1829 '' Schmidtites celatus'' (Volborth, 1869) References Brachiopod families Lingulata {{brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major categories are traditionally recognized, articulate and inarticulate brachiopods. The word "articulate" is used to describe the tooth-and-groove structures of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic skeletal feature, by which the two main groups can be readily distinguished as fossils. Articulate brachiopods have toothed hinges and simple, vertically-oriented opening and closing muscles. Conversely, inarticulate brachiopods have weak, untoothed hinges and a more complex system of vertical and oblique (diagonal) muscles used to keep the two valves aligned. In many brachiopods, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]