Alicenula cf. leguminella (Forbes, in Lyell 1855)

Tomé, Maria Emilia, Araripe, Rilda, Oliveira, David, Barreto, Alcina, Prado, Ludmila, Pedrosa, Flavia, Pereira, Priscilla, Nascimento, Luiz Ricardo & Ng, Christiano, 2022, Early Cretaceous Ostracoda (Crustacea) from south-centralAraripe Basin, Brazil with descriptions of seven new species, Zootaxa 5159 (4), pp. 535-557 : 550

publication ID	https://doi.org/ 10.11646/zootaxa.5159.4.4
publication LSID	lsid:zoobank.org:pub:D3D2D54E-4B22-45FC-9904-FBB8BEF2E601
DOI	https://doi.org/10.5281/zenodo.6794776
persistent identifier	https://treatment.plazi.org/id/31296775-CE76-FFF8-86B7-FE899C89F828
treatment provided by	Plazi
scientific name	Alicenula cf. leguminella (Forbes, in Lyell 1855)
status

Treatment

Alicenula cf. leguminella (Forbes, in Lyell 1855) View in CoL

Fig. 5M–O View FIGURE 5

1855 Cypris leguminella —Forbes (in Lyell, 1855), p. 294, Fig. 334c.

1855 Darwinula leguminella —Jones, p. 346, Taf. 8, Figs. 3 View FIGURE 3 –31.

1856 Darwinula leguminella —Jones, p. 147, Taf. 4, Fig. 4a–c View FIGURE 4 .

1940 Darwinula leguminella —Martin, p. 317, Taf. 4, Figs. 58–61.

1954 Darwinula leguminella —Bartenstein & Burri, Taf. 26.

1957 Darwinula leguminella —Grekoff, p. 61, Plate 3, Figs. 56 and 57.

1961 Darwinula leguminella —Martin, p. 119, Taf. 14, Fig. 19.

1962 Darwinula leguminella —Kringler et al., p. 187–188, Taf. 25, Fig. 14.

1963 Darwinula leguminella —Oertli, p. 20, Taf. 6, Fig. 40.

1963 Darwinula leguminella —Christensen, p. 21–23, Taf. 2, Fig. 2 View FIGURE 2 aec.

1966 Darwinula leguminella —Barker, p. 472, Taf. 7, Fig. 9.

1971 Darwinula leguminella —Anderson, p. 110, Taf. 18.

1975 Darwinula leguminella —Bielecka, p. 368, Taf. 14, Fig. 5 View FIGURE 5 .

1976 Darwinula leguminella —Brenner, p. 141, Taf. 10, Figs. 23–25.

1985 Darwinula leguminella —Colin & Oertli, p.160, Taf. 40, Fig.1 View FIGURE 1 .

1978b Darwinula martinsi —Silva, p. 1028–31, Plate 1, Figs. 1–2 View FIGURE 1 View FIGURE 2 .

1990 Darwinula cf. martinsi —Silva Telles Jr. & Viana, Plate 2, Fig. 4 View FIGURE 4 .

1997 Darwinula cf. martinsi —Colin & Dépêche, Plate 2:18.

2002 Darwinula martinsi — Coimbra et al., Fig. 4 View FIGURE 4 :32.

2004 Darwinula martinsi —Do Carmo et al., p. 50–51, Fig. 9:13

2010 Darwinula cf. martinsi —Tomé & Lima Filho, p. 63, Plate 2, Fig. d–f.

2013 Darwinula martinsi — Do Carmo et al., p. 95e103, Fig. 5 View FIGURE 5 , N?.9.

2014 Alicenula leguminella (Forbes in Lyell 1855)—Tomé et al., p. 170, Fig.14 (T–Z).

2020 Alicenulla sp.—Melo et al., p 9, Fig. 5 View FIGURE 5 (11–12).

2022 Alicenula leguminella —Araripe et al., p 7, fig. 5 (12a–b).

Illustrated material. Juvenile shell, Nº. DGEO-CTG-UFPE-1526. Illustrated material from the Santo Antônio section (0.3 m).

Dimension. Nº. DGEO-CTG-UFPE-1526 ( Fig. 5M–N View FIGURE 5 ); L= (LV) 0.376 mm, and W= 0.172 mm and Nº. DGEO- CTG-UFPE-1527 ( Fig. 5O View FIGURE 5 ); L= ( RV) 0.424 mm and H= 0.143 mm.

Comparison. Material compared to Alicenulla leguminella (Nº DGEO-CTG-UFPE-1174), described and deposited by Tomé et al. (2014) in the Ivan de Medeiros Tinoco Microfossils Collection of the Paleontology Laboratory of the Federal University of Pernambuco. It was observed that the specimen found in the present study was much smaller, possibly a juvenile form. The ventral covering of the right valve was not observed. Thus, the specimen studied was assigned the confer .

Occurrence and associated fauna. It was recorded in the Santo Antonio section, at the following depths (from base to top): 0.3; 2.1 and 2.25 m. A. cf. leguminella is associated with all species of ostracods, except Dicrorygma ( Orthorygma ?) dimorpha, Microceratina retangularis sp. nov. and T. cf. quadrinodosum .

Observations. It is worth pointing out the association of this species with the planktonic foraminifera Pseudoguembelitria sp. and Liliputinella? sp., thus suggesting that such forms may occur in typically brackish-marine environments.

Stratigraphic distribution. Brazil, Araripe Basin, Santana Formation, Crato Member, and base of Ipupi Member ( Silva 1978b; Silva Telles Jr. & Viana 1990; Colin & Dépêche 1997); interval dated as Aptian ( Regali 1990; Coimbra et al. 2002). Potiguar Basin, Alagamar Formation, Aptian ( Do Carmo et al. 2013). Cedro Basin, in strata correlated to the Crato Formation, Aptian (Tomé 2007; Tomé & Lima Filho 2010). Jatobá Basin, Serra Negra, in deposits correlated to the Crato Formation, upper Aptian ( Tomé et al. 2014). The rocks of the Puberck and Wealden, in England, contain records of this species from the Jurassic to the lower Aptian (Anderson 1985). In this work, Araripe Basin, Romualdo Formation, upper Aptian - lower Albian.