lingulate


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lingulate

[′liŋ·gyə‚lāt]
(biology)
Tongue- or strap-shaped.
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The section was sampled during fieldwork in 1987 as follows: pebbles from the basal conglomerate of the Ulgase Formation (N-62), lingulate brachiopod shells from the Ulgase Formation (N-63 and N-63A), and basal lingulate shell coquina of the Kallavere Formation (N-60).
Such conditions in the earliest stages of post mortem development of lingulate valves are confirmed by the typical dark colour and high pyrite content (detected by the X-ray diffraction method) of U.
The Ulgase Formation has yielded lingulate brachiopods Ungula inornata from all levels above the basal coquina, Ceratreta tanneri from the upper 3 m and Ungula sp.
Most readily recognized by the shape and patterning of the male supra-anal plate with a wide lingulate terminal process (Fig.
Apatite varieties in the shell of a Cambrian lingulate brachiopod Obolus apollinis Eichwald.
The above studies suggest that fossil lingulate shells may contain a wide range of apatite varieties precipitated in different conditions.
euryelytra, but can be distinguished by its lingulate leaf blades (vs.
Leaves densely rosulate, spreading, coriaceous, 40-60 cm long; leaf sheaths elliptic, 8-12 x 6-10 cm, somewhat nerved, densely appressed brown-lepidote especially abaxially, dark castaneous at the base abaxially; leaf blades lingulate, broadly acute, apiculate, 3-4 cm wide, somewhat nerved, appressed pale punctate-lepidote, especially abaxially, light to dark green.
90[degrees] from the axis, thin-coriaceous, 5-40 cm long with an ovate partially castaneous sheath, 2-5 x 3-5 cm and with a lingulate acute blade 2-4 cm wide; the lowest bright green, the upper pale green proximally, bright pink distally or entirely bright pink; all appressed punctate-lepidote and nerved; branches polystichously arranged, 10-12 mm apart, each with a stout 1-3 mm long peduncle, spreading at ca.