Yoldia

Yoldia

 

a genus of marine bivalve mollusks. The shell is 1–4 cm long; its hinge has numerous teeth. There are approximately 20 species of Yoldia; they inhabit soft ground in ocean floors as deep as 200 m. There are eight species in the far eastern seas of the Soviet Union and one, Yoldia hyperborea, in the northern seas. The Yoldian Sea was named for the mollusk. Mollusks now classified in the genera Portlandia and Yoldiella used to be included in Yoldia.

References in periodicals archive ?
The test site is located in Northern Jutland on the outskirts of Aalborg (Grinsted), Denmark on a marine plain formed during the Yoldia transgression period, in connection with the ice retreat from Northern Jutland (approximately 13,000-9,000 years B.
Age determination and growth analysis based on external growth rings of the protobranch bivalve Yoldia notabilis Yokoyama in Otsuchi Bay, northeastern Japan.
In the following stages of the Baltic Sea (from the Yoldia to Limnea seas) the water levels were generally lower than the carbonaceous klint edge and their waters did not affect sedimentation.
The detailed, comprehensive and graphically well-presented environmental section shows the appearance of the Arup site during the Yoldia regression around 9600 cal.
Radiocarbon ages of the organic deposits formed during Yoldia regression and Ancylus transgression (73 dates) vary significantly: from 8440 [+ or -] 70 (TA-263) to 9980 [+ or -] 120 (Tln-2349) at Joelahtme (Appendix 1).
Age determination and growth analysis based on external shell rings of the protobranch bivalve Yoldia notabilis Yokoyama in Otsuchi Bay, Northeastern Japan.
Yoldia limatula, a group of suspension-feeding marine clams, and Nereis diversicolor, a predatory marine polychaete will be added to sediment microcosms and a series of scans performed to determine how the infauna alters porosity.
Mineva (1964) examined 190 stomachs of Alaska plaice in the eastern Bering Sea and found the following important prey items: bivalves such as Yoldia hyperborea, Y.
The southern parts of the basin were at first connected through narrow straits to the Yoldia Sea (Kemilainen 1982; Miettinen 1996; Tikkanen & Oksanen 2002), but rapid land uplift turned the straits into outlet channels, forming this way the Pielinen ice-dammed lake.