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1,036 results for “Late Miocene”
FIGURE 6. Camachoaster maquedensis n in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 6. Camachoaster maquedensis n. sp., photographs of the oral surfaces of paratypes. A: MACN-Pi 5859, prepared specimen with pencil marks indicating plate architecture. B: MACN-Pi 5860, partially prepared specimen with pencil marks indicating plate architecture, faint tuberculation, and main branches of food grooves. Scale bars 10 mm in length.
FIGURE 5. Camachoaster maquedensis n in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 5. Camachoaster maquedensis n. sp., photographs of the holotype MACN-Pi 5809. Oral surface shows pencil marks indicating some of the plate architecture. Scale bar 10 mm in length.
FIGURE 4 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 4. Comparison of oral plate architecture of Iheringiella patagonensis (Desor, 1847) (based on ROM 5433M), Abertella gualichensis Martínez et al., 2005 (based on the holotype, MACN-Pi 4706), Abertella pirabensis (Marchesini Santos, 1958) (reconstruction based on the holotype and only known specimen, DNPM 4493, details of interambulcrum 2 inferred by comparison with interambulacrum 4, and of ambulacrum V by comparison with ambulacrum I), and Placatenella complanata (Brito, 1981) (based on the holotype, MNRJ 5460-I, as well as MNRJ 5536-I, MPEG 886-I, MPEG 2405-I). Food grooves indicated by dotted lines, peristome and periproct in solid black, interambulacra shaded, scale bars 10 mm in length.
FIGURE 9 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 9. Abertella pirabensis (Marchesini Santos, 1958), photographs of the holotype, DNPM 4493. A: Aboral surface. B: Oral surface. C. Strongly side-lighted detail of posterior edge showing notch (white arrow), food groove (black arrow), tuberculation, and periproct (p). D. Oblique, nearly edge-on view of posterior edge showing notch (white arrow) and periproct (p). Scale bars 10 mm in length.
FIGURE 2 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 2. Placatenella complanata (Brito, 1981), photographs. A: Aboral surface of holotype, MNRJ 5460-I. B: Oral surface of holotype, MNRJ 5460-I. C: Aboral surface of MNRJ 5536-I, with deep, narrow posterior notch. D: Oral surface of MNRJ 5536-I. Scale bars 10 mm in length.
FIGURE 7 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 7. Comparison of oral plate architecture of Camachoaster maquedensis n. sp. (based on paratypes MACN-Pi 5859 and 5860) and Camachoaster? kewi (= Abertella kewi Durham, 1957) (based on specimens from UCMP locality B8562, Chiapas, Mexico). Food grooves indicated by dotted lines, peristome and periproct in solid black, interambulacra shaded, scale bars 10 mm in length.
FIGURE 1 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 1. Localities for taxa discussed in the text. Inset at lower left centers on the Santa Cruz region of Patagonia. Numbered occurrences correspond to unequivocal Iheringiella patagonensis localities (inside boxed region in main map): 1. Pampa Castillo, Chile (Andre Wyss, pers. comm.); 2. Cañadón El Lobo, Santa Cruz, Argentina (CPBA 16493-95); 3. Oven Point/Sholl's Tomb, Santa Cruz, Argentina (Ortmann 1902), Punta Cuevas, Santa Cruz, Argentina (MACN 4586 and Cuitiño 2011), Playa La Mina, Santa Cruz, Argentina (Cuitiño 2011); 4. Meseta Chica, Bajo de San Julián, Santa Cruz, Argentina (MACN 5144 and Cuitiño 2011); 5. Upper Rio Chalia, Santa Cruz, Argentina (Ortmann 1902); 6. Puerto Santa Cruz, Santa Cruz, Argentina (ROM 5433M, 5468M, 5469M); 7. Sector Flamenco, Tierra del Fuego, Chile (Larrain 1984)—reported to be from Eocene strata, but this is questionable (Mooi et al. 2000).
FIGURE 3 in Late Oligocene - Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species
FIGURE 3. Placatenella complanata (Brito, 1981), photographs. A: Detail of petal in ambulacrum III of MPEG 886-I showing pores of trailing tube feet (arrow indicating most distal pore pair). B: Detail of oral surface near posterior edge of MPEG 2405-I showing periproct at margin, inside notch (p), and continuity of posterior interambulacral post-basicoronals with basicoronal 1 (arrow). Scale bars 10 mm in length.
Fig. 4. A-D – Ceratotherium neumayri from Mahmutgazi. A in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 4. A-D – Ceratotherium neumayri from Mahmutgazi. A: skull Ma2-Gips15 (A1: lateral view; A2: ventral view; A3: occipital view). B: astragalus Ma2-Gips15 (B1: plantar view; B2: lateral view; B3: anterior view). C: upper tooth row Ma2- Gips16, occlusal view. D: set of left metacarpals Ma1-94. Scale bar = 20 cm for Figs. A and D, 10 cm for Fig. B and C.
Fig. 6 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 6. Simpson graphs of hipparionine metapodials. I chose to use Cremohipparion mediterraneum from Pikermi (KOUFOS 1987) as a standard, because this species is more relevant than the central European Höwenegg form. 1 = maximum length; 3 = width of shaft; 5 = proximal breadth; 10 = distal supra-articular width; 11 = distal articular width; 12 = maximum distal antero-posterior diameter.
Fig. 2 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 2. Plot of length vs. distal width of late Miocene giraffid metacarpals (KTA = Kemiklitepe, upper level; Slq = lower Axios valley, ARAMBOURGʼS collection). Data from KOSTOPOULOS (2009a), and original measurements.
Fig. 3 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 3. Plot of medial length vs. distal width of late Miocene giraffid astragali. Note that 'Maragha' includes both S. neumayri and Palaeotragus coelophrys. Data from KOSTOPOULOS (2009a), and original measurements.
Fig. 1. Artiodactyla from Mahmutgazi. A-L – Samotherium major. A in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 1. Artiodactyla from Mahmutgazi. A-L – Samotherium major. A: left mandible Ma3 (A1: occlusal view; A2: lateral view of the rostral part). B, maxilla with P3-M2 Ma2-Gips29. C-D: tibiae in anterior view (C: MA2-Gips16; D: Ma2- Gips11). E: distal humerus n°54, anterior view. F-H: metacarpals in anterior view (F: Ma2-Gips17; G, H: Ma2-Gips20). I: cubonavicular Ma1-Gips10, distal view, to show the absence of plantar metatarsal facet. J: astragalus Ma1-Gips10, anterior view. K: upper deciduous tooth-row Ma1-Gips3. L: lower dp3-dp4 Ma1-Gips11. M – Tragoportax sp., right upper tooth row. N: Miotragocerus (Pikermicerus) gaudryi, left lower tooth-row. Scale bar = 5 cm for Figs. M, N, 10 cm for Figs. A, B, and I-L, 25 cm for Figs. C-H.
Fig. 5. Perissodactyla from Mahmutgazi. A-C in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 5. Perissodactyla from Mahmutgazi. A-C – Hipparionini gen. et sp. indet. (A: upper P2–M3 Ma2-Gips24; B: upper P2-M3 Ma2-Gips3; C: lower p2-m3 'M' [reversed from the right side]). D-G – Cremohipparion cf. matthewi (D: upper P2- M3 Ma1-Gips 17 [reversed from the left side]; E: lower p3-m3 'K'; F: lower p2-m2 'H'; G: lower p3-m3 'J' [reversed from the right side]). H – Ancylotherium pentelicum, front view of proximal metacarpals Ma2-Gips21. Scale bar = 5 cm for Figs. A-G, 10 cm for Fig. H.
Fig. 5. Perissodactyla from Mahmutgazi. A-C in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 5. Perissodactyla from Mahmutgazi. A-C – Hipparionini gen. et sp. indet. (A: upper P2–M3 Ma2-Gips24; B: upper P2-M3 Ma2-Gips3; C: lower p2-m3 'M' [reversed from the right side]). D-G – Cremohipparion cf. matthewi (D: upper P2- M3 Ma1-Gips 17 [reversed from the left side]; E: lower p3-m3 'K'; F: lower p2-m2 'H'; G: lower p3-m3 'J' [reversed from the right side]). H – Ancylotherium pentelicum, front view of proximal metacarpals Ma2-Gips21. Scale bar = 5 cm for Figs. A-G, 10 cm for Fig. H.
Fig. 3 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 3. Plot of medial length vs. distal width of late Miocene giraffid astragali. Note that 'Maragha' includes both S. neumayri and Palaeotragus coelophrys. Data from KOSTOPOULOS (2009a), and original measurements.
Fig. 1. Artiodactyla from Mahmutgazi. A-L – Samotherium major. A in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 1. Artiodactyla from Mahmutgazi. A-L – Samotherium major. A: left mandible Ma3 (A1: occlusal view; A2: lateral view of the rostral part). B, maxilla with P3-M2 Ma2-Gips29. C-D: tibiae in anterior view (C: MA2-Gips16; D: Ma2- Gips11). E: distal humerus n°54, anterior view. F-H: metacarpals in anterior view (F: Ma2-Gips17; G, H: Ma2-Gips20). I: cubonavicular Ma1-Gips10, distal view, to show the absence of plantar metatarsal facet. J: astragalus Ma1-Gips10, anterior view. K: upper deciduous tooth-row Ma1-Gips3. L: lower dp3-dp4 Ma1-Gips11. M – Tragoportax sp., right upper tooth row. N: Miotragocerus (Pikermicerus) gaudryi, left lower tooth-row. Scale bar = 5 cm for Figs. M, N, 10 cm for Figs. A, B, and I-L, 25 cm for Figs. C-H.
Fig. 2 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 2. Plot of length vs. distal width of late Miocene giraffid metacarpals (KTA = Kemiklitepe, upper level; Slq = lower Axios valley, ARAMBOURGʼS collection). Data from KOSTOPOULOS (2009a), and original measurements.
Fig. 4. A-D – Ceratotherium neumayri from Mahmutgazi. A in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 4. A-D – Ceratotherium neumayri from Mahmutgazi. A: skull Ma2-Gips15 (A1: lateral view; A2: ventral view; A3: occipital view). B: astragalus Ma2-Gips15 (B1: plantar view; B2: lateral view; B3: anterior view). C: upper tooth row Ma2- Gips16, occlusal view. D: set of left metacarpals Ma1-94. Scale bar = 20 cm for Figs. A and D, 10 cm for Fig. B and C.
Fig. 6 in Late Miocene large mammals from Mahmutgazi, Denizli province, Western Turkey
Fig. 6. Simpson graphs of hipparionine metapodials. I chose to use Cremohipparion mediterraneum from Pikermi (KOUFOS 1987) as a standard, because this species is more relevant than the central European Höwenegg form. 1 = maximum length; 3 = width of shaft; 5 = proximal breadth; 10 = distal supra-articular width; 11 = distal articular width; 12 = maximum distal antero-posterior diameter.
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