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FIGURE 6 in Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin

FIGURE 6 | Austrolebias ayoreode. Males (immediately after collection). Two uppermost: MNKP 16590, paratypes, 34.7–34.8 mm SL, Bolivia, Santa Cruz, Cordillera, Charagua Iyambae Guarani Autonomous Territory, Ñembi Guasu Conservation and Ecological Importance Area. Lower six: MNKP 16587, paratypes, 21.2–34.7 mm SL, collected with uppermost.

FIGURE 5 in Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin

FIGURE 5 | Austrolebias ayoreode. Male and female (1 day after collection). Above: MNKP 16612, holotype, male, 50.7 mm SL, Bolivia, Santa Cruz, Cordillera, Charagua Iyambae Guarani Autonomous Territory, Ñembi Guasu Conservation and Ecological Importance Area. Below: MNKP 16587, paratype, female, 38.1 mm SL, collected with holotype.

FIGURE 2 in Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin

FIGURE 2 | Austrolebias accorsii. Females (1 day after collection). MNKP 16552, topotypes, 33.72–42.61 mm SL, Bolivia, Santa Cruz, Cordillera, Charagua Iyambae Guarani Autonomous Territory.

FIGURE 3 in Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin

FIGURE 3 | Occurrence localities of Austrolebias species in the northern Chacoan province. Stars represent type-localities, colors differentiate the species (A. accorsii red, Austrolebias n. sp. yellow, A. ephemerus green, A. vandenbergi blue). Blue numbers indicate the Hydrologic Unit (Pfafstetter, level 5). Sources: Ecoregions from Olson et al. (2001); Hydrologic Units from Lehner, Grill (2013); Basemap ESRI World Topo (2022).

FIGURE 1 in Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin

FIGURE 1 | Austrolebias accorsii. Males (1 day after collection). Left: MNKP 16556, 32.4–42.3 mm SL, Bolivia, Santa Cruz, Cordillera, Charagua Iyambae Guarani Autonomous Territory. Right: MNKP 16552, topotypes, 39.3–48.6 mm SL, Bolivia, Santa Cruz, Cordillera, Charagua Iyambae Guarani Autonomous Territory.

FIGURE 8 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 8. Microtragulus sp., upper and lower molars in occlusal views. 1. JUY-P 53, isolated left M3. 2. JUY-P 54, isolated left m2 or m3. Scale bar equals 2 mm.

FIGURE 6 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 6. Microtragulus bolivianus, astragalus and calcaneus. 1-5. JUY-P-0075, complete right astragalus in: 1, dorsal; 2, plantar; 3, medial; 4, lateral; and 5, distal views. 6-10. JUY-P-0073, complete left calcaneus in: 6, dorsal; 7, plantar; 8, medial; 9, lateral; and 10, distal views. Scale bar equals 5 mm.

FIGURE 4 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 4. Microtragulus bolivianus, right lower dentition in occlusal view. 1. JUY-P-0066, detail of i1. 2. JUY-P-0066, m1-4. 3. JUY-P-0067, m1-4. Scale bar equals 5 mm.

FIGURE 3. Microtragulus bolivianus. 1-3. JUY-P-0065 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 3. Microtragulus bolivianus. 1-3. JUY-P-0065, fragment of right maxilla with M3-M4 in: 1, lateral; 2, medial; and 3, occlusal views. 4-5. JUY-P-0066, right mandibular body with i1, alveoli of i2 and p3, and complete m1-4 in: 4, medial; and 5, lateral views. 6-7. JUY-P-0067, right mandibular body with complete i1 and i2, alveolus of p3, and complete m1-4 in: 6, medial; and 7, lateral views. 8-9. JUY-P-0068, anterior fragment of right mandibular body with i1 and alveoli of i2 and p3 in: 8, medial; and 9, lateral views. Scale bar equals 5 mm.

FIGURE 2 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 2. Line drawings (occlusal view) of Microtragulus bolivianus showing the anatomical nomenclature used in the text. 1. Right M3-4. 2. Right m1-4 (image reflected). Abbreviations: cf, central fossa; cfd, central fossid; ectf, ectoflexid; ectd, ectostylid; ent, entoconid; entd, entostylid?; entf, entoflexid; gr, groove; hyp, hypoconid; hypd, hypoconulid; mesl, mesiolabial lobe; met, metacone; metd, metaconid; metl, metaconule; prt, protocone; prtd, protoconid.

FIGURE 5 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 5. Microtragulus bolivianus, fore and hindlimb bones. 1-4. JUY-P-0069, right humerus almost complete except the proximal third in: 1, anterior; 2, posterior; 3, medial; and 4, lateral views. 5-8. JUY-P-0070, left humerus almost complete except the proximal third in: 5, anterior; 6, posterior; 7, medial; and 8, lateral views. 9-12. JUY-P- 0071, distal half of left humerus in: 9, anterior; 10, posterior; 11, medial; and 12, lateral views. 13-16. JUY-P-0072, distal end of right humerus in 13, anterior; 14, posterior; 15, medial; and 16, lateral views. 17-19. JUY-P 59, proximal half of right ulna in: 17, anterior; 18, lateral; and 19, medial views. 20-22. JUY-P 60, proximal half of left ulna in: 20, anterior; 21, lateral; and 22, medial views. 23. JUY-P 61, proximal fragment of radius. 24-25. JUY-P 52, distal end of right tibiofibula in: 24, anterior; and 25, posterior views. Scale bar equals 10 mm.

FIGURE 9 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 9. Argyrolagus sp. MACN 17590, left mandibular fragment with m1-4. 1-4. Photograph and line drawing in: 1-2, medial; and 3-4, dorsal views. The arrow points the maxillary canal. Scale bar equals 5 mm.

FIGURE 7 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 7. Microtragulus bolivianus, metatarsal III and IV and phalanges. JUY-P 55, complete right metatarsal III and JUY-P 56, distal portion of right metatarsal IV (not associated) in: 1, anterior; and 2, posterior views. Scale bar equals 10 mm. 3-5. JUY-P 58, ungual phalanges in lateral view. Scale bar equals 5 mm.

FIGURE 1. 1 in Redescription of the argyrolagid Microtragulus bolivianus (Metatheria, Polydolopimorphia, Bonapartheriiformes) based on new remains from Northwestern Argentina

FIGURE 1. 1. Location map of the fossiliferous levels of the Uquía Formation exposed at San Roque, Humahuaca (Jujuy Province, Argentina). Relative location of the prospected area in: 2, Jujuy Province; and 3, Northwestern Argentina. Modified from Ortiz et al. (2012).

FIGURE 2. Agerinia roselli from Les Saleres. IPS-2543, left mandible fragment with P3 and P4 in New dental material and redescription of Agerinia roselli (Primates, Adapiformes) from Les Saleres (early Eocene, NE Iberian Peninsula)

FIGURE 2. Agerinia roselli from Les Saleres. IPS-2543, left mandible fragment with P3 and P4 in occlusal (1), buccal (3), lingual (5), and mesial (7) views; enlarged images of mesial roots of the same specimen in occlusal (2), buccal (4), lingual (6), and mesial (8) views; white arrows indicate the position of the most mesial root; black arrows indicate the position of the root immediately mesial with respect to the P3. Scale bar represents 3 mm in both cases.

FIGURE 4. Body mass estimate regressions for Agerinia roselli. 1 in New dental material and redescription of Agerinia roselli (Primates, Adapiformes) from Les Saleres (early Eocene, NE Iberian Peninsula)

FIGURE 4. Body mass estimate regressions for Agerinia roselli. 1, derived from the area of the M1; 2, derived from the area of the M2. Black dots represent different molars of A. roselli. Black line indicates regression based on extant prosimian data from Egi et al. (2004).

FIGURE 1 in New dental material and redescription of Agerinia roselli (Primates, Adapiformes) from Les Saleres (early Eocene, NE Iberian Peninsula)

FIGURE 1. Map showing the main Tertiary basins of the Iberian Peninsula with the location of Les Saleres (LS) fossil site (modified from Antunes et al., 1997).

FIGURE 5 in New dental material and redescription of Agerinia roselli (Primates, Adapiformes) from Les Saleres (early Eocene, NE Iberian Peninsula)

FIGURE 5. Radiograph represented with inverted colours (1) and ESEM micrograph (2) of the left mandible fragment of Agerinia roselli (IPS-2543) in buccal view. White arrows indicate the position of the most mesial root; black arrows indicate the position of the root immediately mesial with respect to the P3. Scale bars represent 3 mm.

FIGURE 3. Agerinia roselli from Les Saleres. IPS-82793, isolated right M1 in New dental material and redescription of Agerinia roselli (Primates, Adapiformes) from Les Saleres (early Eocene, NE Iberian Peninsula)

FIGURE 3. Agerinia roselli from Les Saleres. IPS-82793, isolated right M1 in occlusal (1), buccal (2) and lingual (3) views. IPS-82816, isolated right M1 in occlusal (4), buccal (5) and lingual (6) views. IPS-2542, left mandible fragment with M2 in occlusal (7), buccal (8) and lingual (9) views. IPS-82794, right mandible fragment with M2 in occlusal (10), buccal (11) and lingual (12) views. IPS-1981, holotype, left mandible fragment with M2 and M3 in occlusal (13), buccal (14) and lingual (15) views. IPS-2541, right mandible fragment with M2 and M3 in occlusal (16), buccal (17) and lingual (18) views. IPS-82795, right mandible fragment with M3 in occlusal (19), buccal (20) and lingual (21) views. IPS- 82790, left mandible fragment preserving part of the ramus mandibularis and a fragment of the M3 in occlusal (22), buccal (23) and lingual (24) views. Scale bar represents 3 mm.