Fig. 1
Copionodon exotatos , holotype, MZUSP 120631, 45.0 mm SL, Brazil, Bahia, Chapada Diamantina, Município de Palmeiras, Riacho do Mosquito, immediately upstream from Cachoeira do Mosquito, rio Paraguaçu basin.
Fig. 2
Copionodon exotatos , holotype, MZUSP 120631, 45.0 mm SL. Left to right, dorsal and ventral views of head.
Fig. 3
Copionodon exotatos, holotype, MZUSP 120631, 45.0 mm SL. Lateral view of head.
Fig. 4
Copionodon exotatos, paratype, MZUSP 121656, opercle and interopercle, right side, lateral view. Abbreviations: OPOD, opercular odontodes; OP, opercle; INT, interopercle. Scale bar = 1 mm.
Fig. 5
Copionodon exotatos, paratype, MZUSP 121656, basibranchials and hypobranchials, dorsal view. Grey areas represent cartilage. Abbreviations: BB2-4, basibranchials 2 to 4; HB1-3, hypobranchials 1 to 3. Scale bar = 1 mm.
Fig. 6
Copionodon exotatos, paratype, MZUSP 121656. Lower jaw, left side, mesial view. Abbreviations: AA, anguloarticular; DEN, dentary. Scale bar = 1 mm.
Fig. 7
Geographic distribution of Copionodon exotatos.
Fig. 8
Collection site of Copionodon exotatos, right-hand branch of Riacho do Mosquito (trib. to rio Santo Antônio, rio Paraguaçu drainage), immediately upstream from Cachoeira do Mosquito (12º21’59.51”S, 41 ºS 22”19.37”W) at exit of rock-enclosed sector.
Fig. 9
Copionodon exotatos, holotype, MZUSP 120631, CT-scan image of anterior portion of skull, dorsal view. Abbreviations: PMX, premaxilla; MX, maxilla; QUA, quadrate; PO, preopercle; ME, mesethmoid; AF, anterior fontanel; FR, frontal; DEN, dentary; PAL, palatine; AA, anguloarticular; LE, lateral ethmoid; HYO, hyomandibula.
Fig. 10
Copionodon exotatos , holotype, MZUSP 120631, CT-scan images of right premaxilla and associated dentition: a. ventral view, b. dorsal view.
Fig. 11
Copionodon exotatos , holotype, MZUSP 120631, CT-scan image of jaws, anteroventral view. Abbreviations: AA, anguloarticular; DEN, dentary; PMX, premaxilla.
Fig. 12
Copionodon exotatos, holotype, MZUSP 120631, CT-scan images of Weberian ossicles, right side. a- three ossicles in natural relative positions, dorsal view, b- Scaphium in lateral view. Abbreviations: AR, articular process; AS, ascending process; CS, concha scaphium; INT, intercalarium; SC, scaphium; TR, tripus.
Fig. 13
Copionodon exotatos, holotype, MZUSP 120631, CT-scan image of opercle and interopercle, right side. Abbreviations: VOD, vestigial odontodes; OP, opercle; INT, interopercle. Lateral view.
Fig. 14
Copionodon exotatos , holotype, MZUSP 120631, CT-scan image of posterior part of skull and Weberian capsule, dorsal view. Abbreviations: FR1, First Ray 1; CC, complex centrum; WC, Weberian capsule; VC, vertebrae centrum; PR, pleural ribs.
Fig. 15
Copionodon exotatos, holotype, MZUSP 120631, CT-scan images of left palatine and associated entopterygoid: a. dorsal view, b. ventral view, c. with entopterygoid removed. Abbreviations: PAL, palatine; EN, entopterygoid.