Candonopsis? alagoensis Tomé, Lima Filho and Neumann, 2014 (Vavra, 1891)

Filho, Marcos Antonio Batista Dos Santos, Ceolin, Daiane, Fauth, Gerson & Lima, Francisco Henrique De Oliveira, 2023, Ostracods from the Barbalha and Crato formations, Aptian of the Araripe Basin, northeast Brazil, Zootaxa 5319 (3), pp. 332-350 : 337

Candonopsis? alagoensis Tomé, Lima Filho and Neumann, 2014

Fig. 4.1A–B

2010 Mantelliana sp. —Tomé and Lima Filho: 56, Pl. 2g –i.

2014 Candonopsis alagoensis n. sp. —168, Figs. 14.D–F, 15.A–C, 16.A–C.

2022 Candonopsis? alagoensis Tomé, Lima Filho and Neumann, 2014 .—Guzmán et al.: 5, Fig. 3.A–C .

Material: More than 300 specimens.

Figured Specimen: ULVG-13482.

Dimensions:

	Instar	Length (mm)	Height (mm)	Width (mm)
ULVG-13482	A-2	0.76	0.44	0.33

Remarks: As discussed both in the original description of this species by Tomé et al. (2014) and more recently by Guzmán et al. (2022), the attribution of this species to the genus Candonopsis is dubious, because none of its soft parts were preserved, and it presents a more trapezoidal outline in lateral view instead of an ellipsoidal one, as common for the genus. As no valves with their hinge or adductor muscle scars preserved were found to allow for a more reliable classification, the authors opted to maintain it in the genus Candonopsis for now.

Occurrences: PS-06-CE: AM-7 (111.64 m), AM-8 (110.3 m), AM-10 (108.06 m), AM-12 (106.05 m), AM-14 (103.6 m), AM-17 (99.8 m), AM-18 (99.3 m), AM-46 (45.55 m), AM-50 (15.55 m), AM-51 (12.6 m). PS-10-CE: AM-4 (104.20 m), AM-9 (99.45 m), AM-26 (47.22 m), AM-39 (14.55 m).

Stratigraphic and geographic distribution: Aptian, Batateira Beds, Barbalha Formation ( Tomé et al. 2014; Guzmán et al. 2022; this study), Crato Formation (this study), Araripe Basin, Ceará State, Brazil. Aptian, Crato Formation, Cedro Basin, Pernambuco State, Brazil ( Tomé and Lima Filho 2010; Tomé et al. 2014). Aptian, Crato Formation, Jatobá Basin, Pernambuco State, Brazil ( Tomé et al. 2014).

Figures

FIGURE 3. Lithology of borehole 1PS-10-CE, as well as the names of the samples analyzed and the distribution of the ostracod taxa recovered. Modified from Fauth et al. (2023).

FIGURE 4. Plate illustrating the ostracod species recovered from the Barbalha and Crato formations, Araripe Basin. 1. Candonopsis? alagoensis Tomé, Lima Filho & Neumann, 2014. ULVG-13482, instar A-2. A—RLV, B—DV. 2. Cypridea araripensis Silva, 1978?.ULVG-13489,mold.3. BrasacyprissubovatumDo Carmo,Coimbra,Whatley,Antonietto&Citon,2013. ULVG-13490, instar A2. A—RLV, B—DV. 4. Damonella medialtis sp. nov. ULVG-14195, adult. A—RLV, B—DV, C—LLV. 5. Pattersoncypris cf. angulata (Kr̂mmelbein & Weber, 1971). ULVG-13483, instar A-2. A—RLV, B—DV. 6. Pattersoncypris micropapillosa Bate, 1972. ULVG-13486, instar A-2. A—RLV, B—DV. 8. Pattersoncypris salitrensis (Kr̂mmelbein & Weber, 1971). ULVG-13484, instar A-3. A—RLV, B—DV.