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Fig. 7 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 7. Counts of eating and resting specimens of Trophon geversianus (Pallas, 1774) in three different localities: Bahía Golondrina (A, B), Bahía Ushuaia (C, D), and San Pablo (E). A and C correspond to a first period of observation (the first year). B, D, and E correspond to a second year.

Fig. 6 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 6. Position of drill holes on Mytilus chilensis Hupé, 1854. Y axis: valve sector; X axis: frequency. A. Bahía Brown shell accumulations (n = 81). B. Bahía Golondrina shell accumulations (n = 295). C. Poduced by Trophon geversianus (Pallas, 1774) under aquarium conditions (n = 85). D. Produced by Xymenopsis muriciformis (King, 1832) under aquarium conditions (n =19).

Fig. 3 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 3. Means with confidence limits of shell lengths of Mytilus chilensis Hupé, 1854 consumed by the three different predators included in aquarium experiments. Dashed lines separate size categories.

Fig. 2 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 2. Scheme of the surface of a mussel shell indicating 5 (I, II, III, IV and V) sectors used for the drill site preference analyses.

Fig. 9 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 9. Predation marks produced by Xymenopsis muriciformis (King, 1832) in mussels under aquarium conditions on Mytilus chilensis Hupé, 1854. A–C, E, F. Mytilus chilensis Hupé, 1854. A. CEGH−UNC 25351, left valve in external view. B. CEGH−UNC 25352, left valve in external view. C. CEGH−UNC 25353, left valve in external view. E. CEGH−UNC 25355, right valve in external view. F. CEGH−UNC 25356, right valve in external view (F1), close−up of the drill hole (F2). D. Xymenopsis muriciformis (King, 1832), CEGH−UNC 25354, shell in dorsal view.

Fig. 5 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 5. Bar chart of size classes for drilled and undrilled shells collected in the field. Y axis is the frequency of each size class. A. Bahía Golondrina. B. Bahía Brown.

Fig. 1 in Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications

Fig. 1. Map showing sampling sites in Tierra del Fuego. A. Isla Grande de Tierra del Fuego. B. A sector of the Beagle Channel showing localities on the southern part of the island. Abbreviations: BB, Bahía Brown; BE, Bahía Ensenada; BG, Bahía Golondrina; BU, Bahía Ushuaia; SP, Cabo San Pablo.

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Fig. 2. Muricid gastropod Lepsiella. A–C in The Australasian muricid gastropod Lepsiella as Pleistocene visitor to southernmost South America

Fig. 2. Muricid gastropod Lepsiella. A–C. Lepsiella ukika sp. nov.; three of six recovered Pleistocene specimens, Marine terrace at Caleta Pantalón, Navarino Island, Chile. A. CEGH−UNC 23917, holotype, 17.5 mm height. B. CEGH−UNC 23896, paratype, 17.7 mm height. C. CEGH−UNC 23897, paratype, 19.85 mm height; the outer lip of this specimen is partially broken. D, E. Lepsiella baileyana (Tenison−Woods, 1881); modern specimens from south Australia. D. NMV F699, holotype, 29,7 mm height. E. Recent, 26 mm height. A1–E1 lateral views, A2–E2 apertural views, A3 explanatory drawing.

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Fig. 3 in The Australasian muricid gastropod Lepsiella as Pleistocene visitor to southernmost South America

Fig. 3. Polar centric view of the subantarctic region showing the most plausible route of migration of the haustrin muricids from Australasia to southern South America. Previous records indicated by circles, new record is asterisked. Distribution of subantarctic (SAF) and polar fronts (PF) and associated Antarctic Circumpolar Current (ACC) after Orsi et al. (1995) and based on Whitworth (1988). Dashed lines indicate ACC boundary.

Fig. 8 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 8. Single most parsimonious tree derived from maximum parsimony analysis of 49 hadrosauroid species, highlighting the position of Saurolophus morrisi sp. nov. within saurolophine hadrosaurids. Numbers above the branches indicate decay indices (Bremer support), whereas those below indicate bootstrap frequencies. Lambeeosaurinae is collapsed into a single branch for clarity; lambeosaurine interrelationships recovered were identical to those in Fig. 7.

Fig. 1 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 1. Partial right postorbital of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2852), lower Maastrichtian Moreno Formation of San Benito County, California, USA, showing the autapomorphic ornamentation of its jugal process. Posterior (A) and right lateral (B) views.

Fig. 5 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 5. Appendicular elements of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA. A. Partial left scapula and coracoid in lateral view. B. Partially articulated forelimb elements. C. Proximal segment of right tibia in lateral view. D. Distal fragments of femora. E. Right metatarsal III in dorsal view.

Fig. 3 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 3. Right posterolateral view of the frontal of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA, showing the eroded remnant of the buttressing base of the posterodorsal frontal ramus.

Fig. 7 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 7. Strict consensus tree of the three most parsimonious trees derived from maximum parsimony analysis of 49 hadrosauroid species. LACM/CIT 2760 and 2852 were coded as separate OTUs and their position within Saurolophinae in highlighted in the cladogram. Numbers above the branches indicate decay indices (Bremer support), whereas those below indicate bootstrap frequencies.

Fig. 9 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 9. Comparison of the general skull and premaxillary morphology of two hadrosaurid dinosaurs Saurolophus osborni Brown, 1912, holotype AMNH 5220 (A) and Saurolophus morrisi sp. nov., holotype LACM/CIT 2852 (B), highlighting characters shared by these two taxa. Skull in right lateral view (A1, B1), right premaxilla in lateral view (A2, B2).The white inscription on the premaxilla denote the abbreviation for that bone, painted by the curatorial staff back in the early twentieth century.

Fig. 6 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 6. Appendicular elements of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2852), lower Maastrichtian Moreno Formation of San Benito County, California, USA. A. Partial right scapula in lateral view. B. Right ulna in lateral view and possible manual phalanx II−1 in dorsal view. C. Right metatarsal III in dorsal (C1) and lateral (C2) views.

Fig. 2 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 2. Partial skull roof of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA. Dorsal (A) and ventral (B) views. Photographs (A1, B1) and interpretative drawings (A2, B2).

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Fig. 5. A in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 5. A. Strict consensus cladogram of 435 most parsimonious trees (length = 149, C.I. = 0.732, R.I. = 0.759) showing the phylogenetic position of Hadrosaurus foulkii within Hadrosauridae. Letters correspond to the location of synapomorphies supporting the clades (with numbers representing characters and character states, respectively, listed in the Appendix 1). Numbers correspond to bootstrap values after 1000 replicates. Numbers between parentheses are decay indices. B. 50% marjority rule cladogram showing H. foulkii as a member of the Hadrosaurinae. Letters correspond to the location of synapomorphies supporting the clades (with numbers representing characters and character states, respectively, listed in the Appendix 1). Numbers correspond to the majority rule frequencies for each clade. Both ACCTRAN and DELTRAN options resulted in the same distribution of synapomorphies in the estimated phylogenies. Numbers between parentheses are decay indices.

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Fig. 4. Hadrosaurus foulkii Leidy, 1858 in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 4. Hadrosaurus foulkii Leidy, 1858 (ANSP 10005), Haddonfield, New Jersey, U.S.A., Woodbury Formation, Campanian, Upper Cretaceous. A. Left femur in caudal view. B. Left tibia in cranial view. C. Left fibula in lateral view. D. Left metatarsal IV in dorsal (D1) and lateral (D2) views. E. Left metatarsal II in dorsal (E1) and medial (E2) views.