Title: Deep-sea brachiopods. Their peculiarities in morphology and evolution
Abstract: Abstract At present 63 species of Brachiopoda are known to occur deeper than 2000 m. The species are distributed within 30 genera and 14 families. Thus, as many as one third of the Recent genera and one half of the Recent families of brachiopods, are represented in the deep sea. In the case of six of these species, only empty shells have been found in the southern part of the Argentine Abyssal Plain. It is considered that the brachiopods that are visible in the photographs from the New Hebrides Trench from depths of 675 & 6776 m (LEMCHE & al. 1976:283, plate 16d--e) belong to the family Phaneroporidae ZEZINA; these constitute the deepest recorded living brachiopods. deep sea. These species are: Discinisca lamellosa (BRODERIP); Cryptopora boettgery HELMCHE; BasiLiola pompholyx DALL; Compsothyris racovitzae JOUBIN); Compsothyris? sp. and Liothyrella uva (BRODERIP). The remaining species (Table 1) can be divided into two groups. The first group comprises 24 eurybathic species which extend from the sublittoral zone to the deep sea or from the intermediate zone (3~700 m water depth) between sublittoral and bathyal etages described by ZEZINA (1976:51) for brachiopods. The second group comprises 33 species which are truly deep-sea forms and are not known from shallower water than 700 m.
Publication Year: 1994
Publication Date: 1994-07-15
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 14
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