TABLE 2. Simplicithyris kurilensis Zezina, 1976 in Extreme reduction of morphological characters: a type of brachidial development found in several Late Cretaceous and Recent brachiopod species-new relationships between taxa previously listed as incertae sedis
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TABLE 2. Simplicithyris kurilensis Zezina, 1976. Morphometric values of specimen RBINS–INV. 146419 an articulated specimen collected August 13, 1972, off the eastern coast of Iturup Island (co-ordinates 44°37'N/146°57'E) in the Okhotsk Sea, Far East Russia, at a depth between 5 and 60 m. All measurements in mm. L= length of shell, LDV= length of dorsal valve, W= width, T= thickness, WH= hinge line, ØF= maximum width of foramen. L/W= ratio length/width, LDV/W= ratio length of dorsal valve/width, T/W=ratio thickness/width, WH/W= ratio hinge line/width, ØF/W= ratio diameter of foramen/width. LPC= length of pedicle collar, LSP= length of septum, LCP= length of crural plates (in orthogonal projection), WLoph= total width of lophophore, Ø1/2Loph= diameter of one branch of lophophore, Lten= maximum length of one tentacle, Lped=length of pedicle, Wped= width of pedicle.
| External characters | L mm | LDV mm | W mm | T mm | WH mm | ØF mm | L/W | LDV/W | T/W | WH/W | ØF/W |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.2 | 4.9 | 5.4 | 2.3 | 3.9 | 2.4 | 1.33 | 1.47 | 0.43 | 0.72 | 0.44 | |
| Internal characters | LPC mm | LSP mm | LCP mm | Wloph mm | Ø 1/2 Loph mm | Lten mm | Lped mm | Wped mm | |||
| 1.2 | 2.40 | 1.3 | 4.1 | 1.8 | 1.1 | 1.71 | 0.8 |
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- Journal article: 10.11646/zootaxa.4444.1.1 (DOI)
- Journal article: urn:lsid:plazi.org:pub:FFD6FFFBA547FFC05825FFC0EF1BFFC1 (LSID)
- Journal article: http://publication.plazi.org/id/FFD6FFFBA547FFC05825FFC0EF1BFFC1 (URL)
- Journal article: http://zenodo.org/record/1309421 (URL)
- Journal article: http://zoobank.org/32CB14D8-0672-4CE4-BD64-48AD499C91C2 (URL)
References
- Zezina, O. N. (1976) A new genus of Recent terebratelloid brachiopod from the sublittoral of the Kurilo-Kamchatka region. In: Bottom fauna of the seas fringing the USSR. Akademia Nauk SSSR, P. P. Shirshov Institute of Oceanology, Moscow, pp. 101-105. [In Russian]