Cytherelloidea btaterensis Bischoff 1964
| Main Authors: | Antonietto, Lucas Silveira, Carmo, Dermeval Aparecido do, Viviers, Marta Claudia, Neto, João Villar Queiroz, Hunt, Gene |
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| Format: | info publication-taxonomictreatment |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3854528 |
Daftar Isi:
- Cytherelloidea btaterensis Bischoff, 1964 Fig. 5 G–I Cytherelloidea btaterensis Bischoff, 1964: 17, figs 2.16–2.17, 3.18–3.19. Cytherelloidea btaterensis – Damotte & Saint-Marc 1972: 277, fig. 1.2. — Rosenfeld & Raab 1983: 92, figs 1.14–1.16. — Honigstein et al. 1985: 12, fig. 3.173. New material examined BRAZIL: Fazenda Santa Bárbara outcrop, Rosário do Catete Municipality, Sergipe State (sample MP- 1420), approximate coordinates 10°39' S, 37°01' W; Massapê outcrop, Riachuelo Municipality, Sergipe State (samples MP-1515 and MP-1518 to MP-1520), approximate coordinates 10°06' S, 37°10' W; P384 outcrop, Riachuelo Municipality, Sergipe State (samples MP-1500 and MP-1509 to MP-1513), approximate coordinates 10°43' S, 37°12' W; Penha outcrop, Riachuelo Municipality, Sergipe State (samples MP-1449, MP-1452, MP-1457 and MP-1459), approximate coordinates 10°42' S, 37°13' W; Porto dos Barcos 3 outcrop, Riachuelo Municipality, Sergipe State (samples MP-1474 and MP-1477), approximate coordinates 10°43' S, 37°10' W; São José 1 outcrop, Riachuelo Municipality, Sergipe State (samples MP-1550 to MP-1555, MP-1558, MP-1563 and MP-1565), approximate coordinates 10°44' S, 37°13' W. Type locality and age Sample no. 211, Btater Village, Bhamdoun Town, Lebanon; Albian. Measurements Homeotype (CP-671): ♀, right valve: length = 0.58 mm, height = 0.30 mm. Homeotype (CP-672): ♀, carapace: length = 0.59 mm, height = 0.32 mm, width = 0.27 mm. Homeotype (CP-673): ♀, carapace: length = 0.54 mm, height = 0.30 mm, width = 0.23 mm. Remarks The diagnosis follows Bischoff (1964). Cytherelloidea btaterensis Bischoff, 1964 resembles Cytherelloidea circumvallata Bonnema, 1941 (middle Albian–early Cenomanian of the Netherlands) (Bonnema 1941; Gründel 1966), but the latter has an extra central ridge, which is absent in the former. Cytherelloidea knaptonensis Kay, 1963, from the Albian of Lebanon (Bischoff 1964), can be separated from the present species by its ornamentation, which does not include reticulations and punctuations between the ridges; also, the shape of the posterior ridge is remarkably different, especially along the dorso-posterior margin. A similar species, Cytherelloidea kayei Weaver, 1982 from the middle–late Cenomanian of England (Weaver 1982), has thicker ridges overall. Paleoecology and distribution Cytherelloidea btaterensis is a marine, shelf to neritic species occurring in the following localities and stages: Levantine Basin, Lebanon, Aptian–Albian (Bischoff 1964; Damotte & Saint-Marc 1972); Tamun, Hidra, Rama, Yakhini, Yavne Shales and Talme Yafe Formations, Levantine Basin, Israel, Aptian– Albian (Rosenfeld & Raab 1983; Honigstein et al. 1985); and in the present work, Angico and Taquari Members, Riachuelo Formation, Sergipe-Alagoas Basin, Brazil, uppermost Aptian–Albian, Aracajuia benderi (MSA-0) – Sergipella viviersae (MSA-0.2), Praebythoceratina amsittenensis (MSA-0.3) and Reticulocosta edrianae (MSA-0.4) subzones – and Aracajuia antiqua (MSA-1) zones.
- Published as part of Antonietto, Lucas Silveira, Carmo, Dermeval Aparecido do, Viviers, Marta Claudia, Neto, João Villar Queiroz & Hunt, Gene, 2016, Ostracoda (Arthropoda, Crustacea) from the Riachuelo Formation, Sergipe-Alagoas Basin, Brazil, Upper Aptian-Albian, pp. 1-57 in European Journal of Taxonomy 244 on page 12, DOI: 10.5852/ejt.2016.244, http://zenodo.org/record/3850626