Holocene ostracods (Crustacea) from a whale-fall excavation site from the Chao Phraya delta, Central Thailand Author Chitnarin, Anisong 804F4F3D-F368-4EA7-9D7C-7E0530A5FE42 School of Geotechnology, Institute of Engineering, Suranaree University of Technology, Mueang District, Nakhon Ratchasima, 30000, Thailand. anisong@sut.ac.th Author Forel, Marie-Béatrice 063C1F7E-6D26-48F9-A8B1-2AFA496B5FB8 Muséum national d’histoire naturelle, CR 2 P, MNHN-CNRS-SU, 75005 Paris, France. marie-beatrice.forel@mnhn.fr Author Tepnarong, Prachya 3ABB571B-791D-480C-B053-89B59FEB21CA School of Geotechnology, Institute of Engineering, Suranaree University of Technology, Mueang District, Nakhon Ratchasima, 30000, Thailand. prachya@sut-ac.th text European Journal of Taxonomy 2023 2023-01-31 856 1 120 151 http://dx.doi.org/10.5852/ejt.2023.856.2033 journal article 54141 10.5852/ejt.2023.856.2033 2b1ba956-986f-404d-94f6-d933f8393ad4 2118-9773 7616240 A519A06A-6C20-45A7-9120-B0C795E41E75 Stigmatocythere bona Chen, 1982 Fig. 7G–I Stigmatocythere bona Chen in Hou et al ., 1982 : figs 153–154. Stigmatocythere bona – Whatley & Zhao 1988b: 9 , pl. 6 fig. 19. — Dewi 1993: 69 , figs 153–154. — Montenegro et al . 2004 : pl. 2 fig. 8. — Forel 2021: 8 , fig. 5d–e. Dimensions L = 0.407 –0.678 millimeters, H = 0.221 –0.360 millimeters, H/L = 0.41–0.58. Distribution Modern distribution: Java Sea ( Dewi 1993 , 2000 ); Malacca Straits ( Whatley & Zhao 1988 ); Sedili River, Jason Bay ( Zhao & Whatley 1989 ); Vietnam ( Tan et al . 2021 ); Sri Lanka ( Iwatani et al . 2014 ); Mae Khlong River mouth, north west Gulf of Thailand ( Montenegro et al . 2004 ); Southwestern coast of Peninsular Thailand , Ao Nun, Satun Province , Andaman Sea ( Forel 2021 ). Fossil distribution: East China , Pliocene and Quaternary ( Hou et al . 1982 ; Gou et al . 1983 ); Bangkok Clay (samples 20SS01A, 02B, 03A), whale excavation site, Samut Sakhon Province , Thailand , Late Holocene (this work, Fig. 4 ).