Fig 1.
Photograph of CP.V 8175 in right lateral view, a new specimen identified as Caiuajara dobruskii.
Scale bar equals 50 mm.
Table 1.
Caiuajara dobruskii analysed specimens with listed content.
Fig 2.
Picture of skulls belonging to several specimens of Caiuajara dobruskii.
(A) specimen CP.V 1449 (holotype) in right lateral view; (B) specimen CP.V 1005; (C) specimen CP.V 1050–1; (D) inverted specimen CP.V 8171 in left lateral view; (E) inverted specimen CP.V 1448; (F) inverted specimen CP.V 5703. Bold arrows indicate the slight dorsal expansion of the premaxillary posterior process. Scale bar equals 50 mm.
Fig 3.
Morphological disparity in some Caiuajara dobruskii from smaller to larger individuals.
From left to right, CP.V 1050–1, CP.V 8171, CP.V 8175, CP.V 1447, CP.V 1449, CP. 1448, and CP.V 1005. Scale bar equals 50 mm.
Fig 4.
Schematic drawing of specimen CP.V 8175 skull and lower jaw with their respective measures.
Scale bar equals 50 mm.
Table 2.
Caiuajara dobruskii CP.V 8175 preserved cranium and postcranial elements measurements.
Fig 5.
Schematic drawing of CP.V 8175 in right lateral view, a new specimen identified as Caiuajara dobruskii.
The interpretation of the covered free nasal process is pointed out in detail. Scale bar equals 50 mm.
Fig 6.
Detailed picture of the palatal region of the specimen CP.V 8175 in ventrolateral view.
Scale bar equals 5 mm.
Fig 7.
Schematic drawing of the occipital region of Caiuajara dobruskii in ventral view.
(A) specimen CP.V 8175, (B) specimen CP.V 1449. Scale bar equals 50 mm.
Fig 8.
Mandibular ramus of the specimen CP.V 8175 in lateral view.
(A) Picture; (B) Schematic drawing. Scale bar equals 50 mm.
Table 3.
Comparison of the identified ontogenetic stages in the Tapejarinae specimens discussed in this work.
Fig 9.
The parietal crest of Caiuajara dobruskii.
(A) at the specimen CP.V 8175 in right lateral view; (B) at the specimen CP.V 1449 (holotype) in right lateral view. Scale bar equals 50 mm.
Fig 10.
The mandibular symphysis of Caiuajara dobruskii.
(A) Picture in posterodorsal view; (B) schematic drawing in posterodorsal view; (C) picture in posterior view; (D) schematic drawing in posterior view. Shaded patches are marking concavities as a result of the suture processes of the symphyseal shelf. Scale bar equals 50 mm.
Fig 11.
Silhouette of the crania of some Tapejarines pterosaurs.
(A) Caiuajara dobruskii Specimen CP.V 8175; (B) the holotype of Caiuajara dobruskii CP.V 1449; (C) basic interpretation of Tupandactyus imperator MCT 1622-R; (D) Tapejara wellnhoferi AMNH 24440, modified from Wellnhofer & Kellner 1991; (E) ‘Huaxiapterus’ benxiensis BXGM V0011); (F) Sinopterus dongi IVPP V 13363 modified from Wang & Zhou 2003. Scale bar equals 50 mm.
Table 4.
Comparison of both morphology of the parietal crest and contact of the premaxilla with the dorsal margin of the skull in the Tapejarinae specimens discussed in this work.
The specimens compared are those Tapejarinae with at least preserved one of those features analysed.
Fig 12.
Interpretation of specimen CP.V 8175 skull on the basis of the preserved cranial elements and comparison with other tapejarins.
Scale bar equals 50 mm.