Find research datasets worth reusing

FIG. 7 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 7. — Cranium of Diaphorocetus poucheti (Moreno, 1892) MLP 5-6 (holotype) in dorsal (A), ventral (B), right lateral (C), and posterior (D) views, illustrating among others some diagnostic characters at the genus and species levels. The figured photos were taken by one of us (CM) in 1981, with a preservation state that is closer to the original illustrations in Lydekker (1893), prior to the separation of the right and left rostral parts and pterygoids/palatines from the neurocranium and with more complete antorbital notches and right orbit. Scale bar: 200 mm.

FIG. 4FIG. 4 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 4FIG. 4. — Cranium of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype, Chilcatay Formation, East Pisco Basin, Peru) in left (A) and right (B) lateral views. Black dashed lines for sutures, foramina, and outline of several bones and temporal fossa; red dashed line for posterior outline of supracranial basin. Scale bar: 200 mm.

FIG. 1 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 1. — Geographic and geological setting. A, Location of the main outcrops of the Chilcatay Formation along the southern coast of Peru. B, Simplified map providing the position of Ullujaya (the type locality of Diaphorocetus ortegai n. sp.) alongside other highly fossiliferous sites of the Ica desert (including Zamaca, the type locality of Rhaphicetus valenciae Lambert, Muizon, Urbina & Bianucci, 2020). C, Schematic stratigraphic column of the Cenozoic succession exposed in the East Pisco Basin. D, Simplified stratigraphic section of the Chilcatay Formation in Ullujaya, showing the exact position of the holotype of D. ortegai n. sp. in the Ct1 allomember, Ct1a facies association. E, Simplified stratigraphic section of the Chilcatay Formation in Zamaca, showing the exact position of the holotype of R. valenciae in the Ct1 allomember, Ct1a facies association. Both sections D and E include positions of ash layers dated with 40Ar/39Ar and shell-rich beds dated with 87Sr/86Sr along with the corresponding age estimates (after Bosio et al. 2022). Maps and sections modified from Bianucci et al. (2018b), Di Celma et al. (2018, 2019), Bosio et al. (2020, 2022), and Lambert et al. (2020).

APPENDIX 5 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

APPENDIX 5. — Strict consensus of 15 most parsimonious trees resulting from the heuristic search performed with down-weighting of homoplastic characters (k = 3). Tree length 188; Goloboff fit -42.64; CI 0.45; RI 0.68.

FIG. 6 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 6. — Cranium of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype, Chilcatay Formation, East Pisco Basin, Peru) in right (A) and left (B) anterodorsolateral views. Black dashed lines for sutures, foramina, bony nares, and outline of several bones. Scale bar: 200 mm.

FIG. 3 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 3. — Cranium of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype, Chilcatay Formation, East Pisco Basin, Peru) in ventral view; photo and corresponding line drawing. Hatching for main break surfaces; black dashed lines for more tentative interpretations of sutures and edges. ali: alisphenoid. Scale bar: 200 mm.

FIG. 9 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 9. — Comparison of the crania of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype) (a, c) and Rhaphicetus valenciae Lambert, Muizon, Urbina & Bianucci, 2020 MUSM 2543 (holotype) (B, D), both from the Chilcatay Formation (East Pisco Basin, Peru), in dorsal (A, B) and right lateral (C, D) views, based on 3D models resulting from surface-scanning (see Appendices 1; 2), illustrating the difference in the cross-section of the maxillae on the rostrum (much more dorsoventrally flattened in D. ortegai n. sp.). Note that most of the premaxillae is lost on the rostrum of the holotype of D. ortegai n. sp., truncating the dorsal part of the anterior cross-sections. Scale bar: 200 mm.

FIG. 2 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 2. — Cranium of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype, Chilcatay Formation, East Pisco Basin, Peru) in dorsal view; photo and corresponding line drawing. Grey shading for sediment; hatching for main break surfaces; black dashed lines for more tentative interpretations of sutures and edges; and red dashed lines for posterior and lateral outlines of supracranial basin. Scale bar: 200 mm.

FIG. 5 in A new platyrostrine sperm whale from the Early Miocene of the southeastern Pacific (East Pisco Basin, Peru) supports affinities with the southwestern Atlantic cetacean fauna

FIG. 5. — Cranium of Diaphorocetus ortegai n. sp. MUSM 3246 (holotype, Chilcatay Formation, East Pisco Basin, Peru) in anterodorsal view (A) (photo and corresponding line drawing) and posterior view (B). Grey shading for sediment; hatching for main break surfaces; black dashed lines for more tentative interpretations of sutures and edges; red dashed lines for posterior outline of supracranial basin and outline of brain cavity. Scale bars: 200 mm.

FIG. 16 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 16. Tonicia chilensis, southern ecotype, Chile, Magellan Strait, 53°37'S, 70°56'W, 0.5–3.0 m, BL 18.5 mm, 18.05.2000, leg. B. Sirenko. A. Dorsal, marginal and ventral spicules. B. Dorsal bristles and spicules in girdle not treated with KOH. C. Dorsal spicules in girdle treated with KOH. D. Radula. РИС. 16. Tonicia chilensis, южный Экотип, Чили, пролив Магеллана, 53°37'S, 70°56'W, 0.5–3.0 m, BL 18.5 mm, 18.05.2000, собрал. B. Sirenko. A. Дорсальные, маргинальные и вентральные спикулы. B. Дорсальные Щетинки и спикулы на перинотуме не обработанном KOH. C. Дорсальные спикулы на перинотуме обработанном KOH. D. Радула.

FIG. 13 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 13. Tonicia chilensis, northern ecotype, Chile, Calfuco, intertidal, BL 20.6 mm, 16.01.2005, leg. B. Sirenko. A. Valve VII, jugal area. B, D. Dorsal, marginal and ventral spicules. C. Valve VII, pleural area. РИС. 13. Tonicia chilensis, северный Экотип, Чили, Калфуко, литораль BL 20,6 мм, 16.01.2005, собрал B. Sirenko. A. Щиток VII, югальное поле. B, D.Дорсальные, маргинальные и вентральные спикулы. C. Щиток VII, плевральное поле.

FIG. 10 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 10. Tonicia calbucensis, northern ecotype, Chile, Las Cruces, intertidal, BL 16.9 mm, 18.11.2008, leg. B. Sirenko. A. Central and first lateral teeth of radula. B. Head of major lateral tooth of radula. РИС. 10. Tonicia calbucensis, северный Экотип, Чили, Лас Крусес, литораль BL 16,9 мм, 18.11.2008, собрал B. Sirenko. A. Центральные и первые латеральные Зубы радулы. B. Наконечник крючковой пластинки радулы.

FIG. 9 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 9. Tonicia calbucensis, northern ecotype, Chile, Las Cruces, intertidal, BL 16.9 mm, 18.11.2008, leg. B. Sirenko. A. Valve VI, pleural area. B, C. Dorsal, marginal and ventral spicules. D. Radula. РИС. 9. Tonicia calbucensis, северный Экотип, Чили, Лас Крусес, литораль, BL 16,9 мм, 18.11.2008, собрал B. Sirenko. A. Щиток VI, плевральное поле. B, C. Дорсальные, маргинальные и вентральные спикулы. D. Радула.

FIG. 7 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 7. Tonicia calbucensis, northern ecotype, Chile, La Mission, intertidal, BL 17.5 mm, 30.12.2004, leg. B. Sirenko. A. Radula. B. Central and first lateral teeth of radula. РИС. 7. Tonicia calbucensis, северный Экотип, Чили, Ла Мисьон, литораль, BL 17,5 мм, 30.12.2004, собрал B. Sirenko. A. Радула. B. Центральные и первые латеральные Зубы радулы.

FIG. 11 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 11. Photos of live specimens of Tonicia chilensis. A. Northern ecotype, Ventanas (~33°S). B. Northern ecotype, Los Vilos (~32°S). C. Southern ecotype, Huinay (~41°S). D. Southern ecotype Valdivia (~39°S). РИС. 11. Фотографии живых ЭкЗемплЯров Tonicia chilensis. A. Северный Экотип, Вентанас (~33°S); B. Северный Экотип, Лос Вилос (~36°S); C. Южный Экотип, Уйнай (~41°S); D. Южный Экотип, ВальдивиЯ (~39°S).

FIG. 6 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 6. Tonicia calbucensis, northern ecotype, Chile, La Mission, intertidal, BL 17.5 mm, 30.12.2004, leg. B. Sirenko. A. Valve VI, pleural area. B, C. Dorsal, marginal and ventral spicules. D. Radula. РИС. 6. Tonicia calbucensis, северный Экотип, Чили, Ла Мисьон, литораль, BL 17,5 мм, 30.12.2004, собрал B. Sirenko. A. Щиток VI, плевральное поле. B, C. Дорсальные, маргинальные и вентральные спикулы. D. Радула.

FIG. 5 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 5. Tonicia calbucensis, northern ecotype, Chile, La Mission, intertidal, BL 17.5 mm, 30.12.2004, leg B. Sirenko. A. Valve I, dorsal view. B. Valve VI, dorsal view. C. Valve VIII, dorsal view. D. Valve VI, jugal area. E. Valve VI, rostral view. F. Valve VIII, lateral view. РИС. 5. Tonicia calbucensis, северный Экотип, Чили, Ла Мисьон, литораль, BL 17,5 мм, 30.12.2004, собрал B. Sirenko. A. Головной Щиток вид сверху. B. Щиток VI, вид сверху. C. Щиток VIII, вид сверху. D. Щиток VI,.югальное поле. E. Щиток VI, вид спереди. F. Щиток VIII, вид сбоку.

FIG 18 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG 18. Maximum likelihood phylogram of Tonicia species and ecotypes (north and south) from the southeastern Pacific Ocean. Node values represent bootstrap support. РИС. 18. Филограмма максимального правдоподобиЯ видов и Экотипов Tonicia (север и юг) иЗ юго-восточной части Тихого океана. ЗначениЯ уЗлов представлЯют поддержку начальной ЗагруЗки.

FIG. 4 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 4. Tonicia calbucensis, southern ecotype, South Chile, 42°22'S, 72°25'W, 5–20 m, BL 20.5 mm, 04.01.2005, leg. B. Sirenko. A. Radula. B. Central and first lateral teeth of radula. РИС. 4. Tonicia calbucensis, южный Экотип, южное Чили, 42°22'S, 72°25'W, 5–20 м, BL 20,5 мм, 04.01.2005, собрал B. Sirenko. A. Радула. B. Центральные, первые латеральные Зубы радулы.

FIG. 12 in Comparative morphology of Tonicia (Polyplacophora) geographical ecotypes from Southeastern Pacific

FIG. 12. Tonicia chilensis, northern ecotype, Chile, Calfuco, intertidal, BL 20.6 mm, 16.01.2005, leg. B. Sirenko. A. Valve I, dorsal view. B. Valve V, dorsal view. C. Valve VIII, dorsal view. D. Valve VII, dorsal view. E. Valve V, rostral view. F. Valve VIII, lateral view. РИС. 12. Tonicia chilensis, северный Экотип, Чили, Калфуко, литораль BL 20,6 мм, 16.01.2005, собрал B. Sirenko. A. Головной Щиток вид сверху. B. Щиток V, вид сверху. C. Щиток VIII, вид сверху. D. Щиток VII, вид сверху. E. Щиток V, вид спереди. F. Щиток VIII, вид сбоку.