Pardachirus 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 : 26

Pardachirus sp.

Figure 15c

Remarks Otoliths of Pardachirus are small (<1.5 mm). Te key features include a slightly enlarged antero-dorsal part, a deep ventral area, and a sulcus that is only slightly divided into an elongate ostium and an oval cauda ( Schwarzhans, 1999, figs. 872–875), although this is not clearly seen in our fossil. Given the similarities in morphology and the presence of characteristic features, it is plausible that the otoliths belong to Pardachirus .

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