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82 results for “Chelidae”
FIGURE 2 in Dating the origin and diversiFIcation of Pan-Chelidae (Testudines, Pleurodira) under multiple molecular clock approaches
FIGURE 2 Opening of Tasman Sea; Pal., Paleocene; P, Pliocene; Pe, Pelomedusa; Pel, Pelusios; Pelt, Peltocephalus; (cont.) Ph, Phrynops; Pl, Platemys; Ple, Pleurodira; Po, Podocnemis; Ps, Pseudemydura; Q, Quaternary; R, Rheodytes; Rh, Rhinemys. *, constrained nodes based on the TE MP topology; †, extinct taxa; ↑, origin of total groups Pan-Chelidae and Pan-Pelomedusioides. Downloaded from Brill.com10/07/2022 07:36:56PM via free access
FIGURE 3 in Dating the origin and diversiFIcation of Pan-Chelidae (Testudines, Pleurodira) under multiple molecular clock approaches
FIGURE 3 Comparison of the three dating analyses performed in this study (simplified trees). Node number as in table 2. Abbreviations of analyses as in table 1. Abbreviations of geological events as in fig. 2. Abbrevia- tions of genera as in figs. 1 and 2. * constrained nodes based on the MP topologies; ↑, origin of total groups Pan-Chelidae and Pan- Pelomedusioides.
FIGURE 4 in Dating the origin and diversiFIcation of Pan-Chelidae (Testudines, Pleurodira) under multiple molecular clock approaches
FIGURE 4 Comparison of dates produced by the three analyses of this study and four previous molecular clock studies. Abbreviations: Dea (2011), Dornburg et al. (2011); Jea (2013), Joyce et al. (2013); Pea (2017), Pereira et al. (2017); TS-M TD, This study morphological tip-dating; TS- ND, This study node-dating; TS-TE TD, This study total-evidence tip- dating; R&DF (2016), Rodrigues & Diniz-Filho (2016). Node numbers as in table 2.
FIGURE 2 in Myuchelys gen. nov. — a new genus for Elseya latisternum and related forms of Australian freshwater turtle (Testudines: Pleurodira: Chelidae)
FIGURE 2. Dorsal and lateral views of the skulls of A. Elseya dentata (UC0302); B. Myuchelys latisternum (AM 125475) and C. Emydura macquarii (QM48034).
FIGURE 1 in Myuchelys gen. nov. — a new genus for Elseya latisternum and related forms of Australian freshwater turtle (Testudines: Pleurodira: Chelidae)
FIGURE 1. Ventral view of the skulls of A. Elseya dentata (UC0302); B. Myuchelys latisternum (AM 125475) and C. Emydura macquarii (QM48034). Note the alveolar ridge on the maxillary surface of Elseya dentata.
FIGURE 3. A in Myuchelys gen. nov. — a new genus for Elseya latisternum and related forms of Australian freshwater turtle (Testudines: Pleurodira: Chelidae)
FIGURE 3. A phylogeny for the extant genera of the Australian short-necked Chelidae generated using PAUP* (v64d) as the single most parsimonious tree from the character data presented in Table 1. Values on the branches are bootstrap percentages—nodes for which values exceed 70% are considered robust. Phyrnops was used as the outgroup taxon. Note that the genus Elseya, as defined prior to this paper (i.e. Elseya + Myuchelys), was clearly paraphyletic.
FIGURE 9 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 9. Coloration pattern and morphology of a juvenile of A. radiolata (MNRJ 7280). (A, B, C) dorsal, ventral and lateral view of head and neck, respectively; (D) carapace; (E) plastron; (F, G) hindlimb and forelimb. Note the size of the yellow blotch in the medial surface of each limb (arrow). Scale bar: 5 mm.
FIGURE 4 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 4. Variation in carapace coloration of A. radiolata—reddish dark brown coloration pattern. (A) Reddish dark brown with large orange radiating stripes and thin brown stripes over each scute (50%; MNRJ 7282). (B) Reddish dark brown with brown blotches over each scute (17.64%; MNRJ 1056). (C) Reddish dark brown with thin brown stripes and yellow margin on each scute (11.76%; MNRJ 2466). (D) Completely reddish dark brown, with no stripes (11.76%; MNRJ 3810). Scale bar: 10 mm.
FIGURE 3 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 3. Variation in dorsal and ventral coloration of the head and neck. (A) Yellowish brown with light yellow lines (present in 80% of the specimens; MNRJ 7282). (B) Yellowish brown with uniform coloration (20%; MNRJ 1050). (C) Cream to yellow, with few small dark blotches (46.67%; MNRJ 7282). (D) Creamish brown, completely uniform coloration (13.64%; MNRJ 1055). Scale bar: 5 mm.
FIGURE 8 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 8. Variation in the coloration pattern of the limbs of A. radiolata (MNRJ 3810). (A) Forelimb, lateral surface brown and scales of the same color with a yellow line at posterior rim (18.75%); (B) Hindlimb, ventral surface completely yellow with scales of the same color (45.45%). Scale bar: 10 mm.
FIGURE 1 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 1. Geographic distribution of Acanthochelys radiolata based on the sampled specimens and literature analyzed. Specimens are assigned to populations according to freshwater ecoregions (Abell et al. 2008).
FIGURE 5 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 5. Variation in carapace coloration of A. radiolata—black coloration pattern. (A) Completely black (17.68%; MNRJ 20068). (B) Black with white or gray radiating stripes (14.67%; MNRJ 19822). Scale bar: 10 mm.
FIGURE 6 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 6. Variation in plastral coloration of A. radiolata—radiating color pattern. (A) Background coloration yellow with thin radiating brown streaks (MNRJ 7282). (B) Yellow background with a dark brown blotch along the sutures of the scutes, due to the high concentration of brown streaks (32.35%; MNRJ 7308); (2) Yellow background with few brown streaks (5.88%; MZUSP T-3035). Scale bar: 10 mm.
FIGURE 7 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 7. Variation in plastral coloration of A. radiolata—less frequent coloration patterns. (A) Black coloration with lateral yellow blotches (8.82%; MNRJ 19625). (B) Yellow background with a dark blotch along the suture of the scutes with no streaks (MNRJ 19822). Scale bar: 10 mm.
FIGURE 2 in Morphological variation in the Brazilian Radiated Swamp Turtle Acanthochelys radiolata (Mikan, 1820) (Testudines: Chelidae)
FIGURE 2. Projection of the scores of females of A. radiolata for PC1 and PC2. Symbols represent different ecoregions.
FIGURE 5 in A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia
FIGURE 5. Lateral, Dorsal and Ventral views of the skull of Elseya flaviventralis. See Thomson et al. 2015; 2006 for comparative skulls of other Elseya species.
FIGURE 2 in A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia
FIGURE 2. Dorsal and lateral views of the holotype of Elseya (Elseya) flaviventralis NTM 13512, adult female from Pine Creek Crossing, South Alligator River Drainage, Kakadu National Park, Northern Territory, Australia. 13° 30' S 132° 28' E. The plastron has been disarticulated. Note the uniform coloration of the plastron, free from darker streaks and blotches, and the indistinct angle between the bridge and the plastron. Scale 10 mm.
FIGURE 1 in A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia
FIGURE 1. Adult female Yellow Bellied Snapping Turtle (Elseya (Elseya) flaviventralis) from Pul Pul Billabong, Kakadu National Park, Northern Territory (13° 34' S, 132° 35' E).
FIGURE 4 in A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia
FIGURE 4. Distribution of extant species in the genus Elseya. The ranges of Elseya rhodini and Elseya branderhorsti overlap to the west and including the Fly River drainage. Type localities are shown as red dots, with the exception of E. branderhorsti (green dot). The type locality for E. lavarackorum is outside range because it was described from a fossil from Riversleigh now outside its present range. E. rhodini occupies small streams and tributaries; E. branderhorsti occupies tidal regions, lower reaches and lakes, so the two are seldom found in microsympatry.
FIGURE 3 in A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia
FIGURE 3. Dorsal and lateral views of the Paratype (Allotype) of Elseya (Elseya) flaviventralis NTM 13985, adult male from Pul Pul Billabong, South Alligator River Drainage, Northern Territory, Australia. 13° 34' S 132° 35' E. Scale 10 mm. The plastron has been disarticulated.
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