Parapercis sp.

Lin, Chien-Hsiang, Wu, Siao-Man, Lin, Chia-Yen & Chien, Chi-Wei, 2023, Early Pliocene otolith assemblages from the outer-shelf environment reveal the establishment of mesopelagic fish fauna over 3 million years ago in southwestern Taiwan, Swiss Journal of Palaeontology (23) 142 (1), pp. 1-40 : 27

Parapercis sp.

Figure 15f

Remarks Paraperci otoliths are typically triangular with pointed anterior and posterior ends and a marked dorsal angle in the middle of the dorsal rim. Te well-delineated sulcus is characterized by a short widening ostium that opens anteriorly and is accompanied by a short rostrum. Te long cauda is slightly bent downward and widened posteriorly. Additionally, a deep and oval dorsal depression and an upward curved ventral furrow are observed (Lin & Chang, 2012: pl. 122; Schwarzhans, 2019c: pl. 1, figs. 1–10). While these otoliths are easily recognized as Parapercis , there can be overlapping inter- and intra-specific variations within this species-rich genus. Tus, no species determination was possible.

Figures

Fig. 15 Fish otoliths from the Lower Pliocene Gutingkeng Formation,southern Taiwan. Scale bars =1 mm. Images are inner views unless otherwise indicated. a–b Arnoglossus sp., Site 5, sand layer, ASIZF 0100676–677.c Pardachirus sp., Site 5, mud layer, ASIZF 0100678.d Heteromycteris sp., Site 5, sand layer, ASIZF 0100679. e, Cynoglossus sp., Site 5, mud layer, ASIZF 0100680. f, Parapercis sp., Site 5, mud layer,ASIZF 0100681. g Callionymidae indet., Site 2, ASIZF 0100682. h Champsodon sp., Site 2, ASIZF 0100683. i Trichiuridae indet., Site 5, sand layer, ASIZF 0100684. j Labridae indet., Site 2, ASIZF 0100685.1, ventral view; 2, inner view