Search

Tang, Hung Yung, Mychko, Eduard V., Feldmann, Rodney M., Schweitzer, Carrie E., Shaari, Hasrizal, Sone, Masatoshi (2023): Validation of Malayacyclus Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, a cyclidan crustacean from the Early Carboniferous of Terengganu, Malaysia. Zootaxa 5318 (3): 439-440, DOI: 10.11646/zootaxa.5318.3.10, URL: http://dx.doi.org/10.11646/zootaxa.5318.3.10

Malayacylus terengganuensis sp. nov. Malayacyclus terengganuensis Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, 2021: 4, figs. 4, 5 [unavailable]. Type material. HOLOTYPE: UMF10942, eastern side of Bukit Buchu, Terengganu, Peninsular Malaysia, 05°26.459’N, 103°02.791’E. PARATYPES: UMF10943 and 10944, eastern side of Bukit Buchu, Terengganu, Peninsular Malaysia, 05°26.848’N, 103°02.619’E. Occurrence. Early Carboniferous (Visean), Terengganu, Peninsular Malaysia. Diagnosis. Carapace large, bilaterally symmetrical; rostrum anteriorly extended and optical notches placed at the rostral extremities; anterior regions well-defined, with a pair of strong median concentric keels extended posteriorly; marginal rim wide, with three posterior spines developed at the posterior margin. Etymology. Named for Terengganu, Peninsular Malaysia, the state in which the type locality is located. Remarks. A full description and figures of Malayacyclus terengganuensis as well as detailed information about the type locality and horizon are provided in Tang et al. (2021).

Malayacyclus gen. nov. Malayacyclus Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, 2021: 4 [unavailable]. Type species. Malayacyclus terengganuensis sp. nov. Diagnosis. As for the type species (monotypic). Etymology. After Malaya, an older name for Peninsular Malaysia or West Malaysia and Cyclus, the type genus of the Cyclida. Gender masculine.

Bahiacaris n. gen. http://zoobank.org/ urn:lsid:zoobank.org:act: 0B9F091B-F98E-49A7-B794-E250DB722900 Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann, 2019: 72 [unavailable]. Diagnosis. Carapace high and short; rostrum about 30% total length of carapace, minutely serrate on upper margin. Scaphocerite not extending beyond rostrum. Pleonal somite 2 overlapping somites 1 and 3, variable in size. Telson sharp in lateral view, with apparent square tip in dorsal view; tip with setae; with 2 pairs of movable spines dorsally. Uropodal endopod and exopod narrow, much longer than wide; exopod inner margin weakly serrate, outer margin with setal pits. Third maxillipeds shorter than pereiopods 3–5. Pereiopods 1 and 2 shorter and with more bulbous articles than pereiopods 3–4. Type species. Atyoida roxoi Beurlen, 1950, by present designation. Type age. Lower Cretaceous (Aptian). Etymology. The genus name is derived from the state of Bahia in Brazil, where the specimen was collected, and ‘caris’, from the Greek for crab, a common stem in the group. Gender: feminine. Remarks. A full description and stratigraphic account of Bahiacaris n. gen. is given by Schweitzer et al. (2019)., Published as part of Schweitzer, Carrie E., Santana, William, Pinheiro, Allysson & Feldmann, Rodney M., 2023, Validation of Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann (Crustacea, Decapoda, Caridea) from the Cretaceous (Aptian) of Brazil, pp. 299-300 in Zootaxa 5318 (2) on page 299, DOI: 10.11646/zootaxa.5318.2.13, http://zenodo.org/record/8162451, {"references":["Schweitzer, C. E., Santana, W., Pinheiro, A. & Feldmann, R. M. (2019) Redescription and illustration of caridean shrimp from the Cretaceous (Aptian) of Brazil. Journal of South American Earth Sciences, 90, 70 - 75. https: // doi. org / 10.1016 / j. jsames. 2018.12.001","Beurlen, K. (1950) Alguns restos de Crustaceos Decapodes d'agua doce fosseis no Brasil. Anais da Academia Brasiliera de Ciencias, 22 (4), 453 - 459."]}

Schweitzer, Carrie E., Santana, William, Pinheiro, Allysson, Feldmann, Rodney M. (2023): Validation of Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann (Crustacea, Decapoda, Caridea) from the Cretaceous (Aptian) of Brazil. Zootaxa 5318 (2): 299-300, DOI: 10.11646/zootaxa.5318.2.13, URL: http://dx.doi.org/10.11646/zootaxa.5318.2.13