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Fig. 4 in The completeness of the fossil record of plesiosaurs, marine reptiles from the Mesozoic

Fig. 4. Changes in skeletal completeness through time. A. Plesiosaur SCM2 and ichthyosaur SCM2. B. Plesiosaur CCM2 and pterosaur CCM2. C. Plesiosaur CCM2 and Mesozoic bird CCM2. Silhouettes are from phylopic.org, and are credited to Adam Stuart Smith (Plesiosaurus), T. Michael Keesey (Archaeopteryx), and Gareth Monger (Pterodactylus, Ichthyosaurus). Abbreviations: CCM, character completeness metric; SCM, skeletal completeness metric (for detailed explanation of terms see Completeness metrics in Methods section).

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Fig. 3 in The completeness of the fossil record of plesiosaurs, marine reptiles from the Mesozoic

Fig. 3. Scatterplots comparing generalised differenced (GD) plesiosaur CCM2 and SCM2 to GD data for other time series. A. Plesiosaur CCM2 versus species richness. A weak but significant correlation between the two is driven largely by an influential data point, the Aalenian. B. Plesiosaur SCM2 versus fossiliferous marine formations (FMFs). A weak but significant correlation between the two is driven largely by an influential data point, the Aalenian. The scatterplot for CCM2 versus FMFs (not shown) shows a largely identical pattern. C. Plesiosaur SCM2 versus ichthyosaur SCM2. Silhouettes are from phylopic.org, and are credited to Adam Stuart Smith (Plesiosaurus) and Gareth Monger (Ichthyosaurus). Abbreviations: CCM, character completeness metric; FMF, fossiliferous marine formations; GD, generalised differenced; SCM, skeletal completeness metric (for detailed explanation of terms see Completeness metrics in Methods section).

Fig. 8 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 8. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA. A. Canalicular cartilage of fin-supported structure. B–D. Cartilaginous mantle band-shape structure on dorsal side showing a canalicular type of cartilage.

Fig. 7 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 7. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; cartilaginous mantle band-shape structure on the dorsal side of soft body. Overview (A) and detail of analicular cartilage (B). Abbreviation: dcm, dorsal cartilaginous mantle.

Fig. 9 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 9. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; globular ultrastructure of non-biomineralized structures. A. Sheet-like patch of flooded ink (top) and soft tissue debris (bottom); a site of the geochemical analysis is marked with a square. B. Undetermined long soft tissue piece showing a micro-granular ultrastructure on the dorsal side of the soft body. C. Micro-laminated ultrastructure of the gladius. D. Undetermined non-biomineralized micro-laminated fragment from the stomach. E. A linear fragment of soft tissue on dorsal side of the body. F. Micro-globular ultrastructure. Abbreviations: i, ink sheet-like patch; sbt, soft body tissues; std, soft tissue debris.

Fig. 6 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 6. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; views on the canalicular structure of fin-supported cartilages (A–D).

Fig. 1. A in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 1. A. Palaeogeographic map of the western USA basin during the Early Triassic. B. Present-day location of the studied exposure. C. Synthetic stratigraphical and lithological succession of the Bear Lake area (after Romano et al. 2013) with position of the studied specimen. Ammonoid zonation after Jenks et al. (2013) and Jattiot et al. (2016). Stratigraphy follows the main units defined by Kummel (1954). Radiometric ages after Galfetti et al. (2007) and Burgess et al. (2014). Abbreviations: LL, Lower Limestone; LS,Lower Shale; ML, Middle Limestone; MS, Middle Shale; UCS, Upper Calcareous Siltstone.

Fig. 4 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 4. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; arm-hooks in the stomach. A. A well exposed arm-hook with deformed shaft and a broken distal end of the basement, tip not exposed; another arm-hook less visible and fractured. B. Three deformed arm-hooks. C. A deformed arm-hook showing a depression along the compressed shaft. Abbreviations: h, arm-hook; i, ink sheet-like patch.

Fig. 5 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 5. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; fin-supported cartilages. The surfaces of fractured cartilages (A–C), outer surface (D). Abbreviation: f, fin.

Fig. 3 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 3. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA; a folded tapered anterior part of the gladius with a rachis, and narrow median and acute left and right lateral fields. Abbreviations: lf, left lateral field; mf, median field; rf, right lateral field; sbr, soft body remains.

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Fig. 1 in A New Chinese Mesozoic Stick Insect

Fig. 1. Susumaniid stick insect Renphasma sinica gen. et sp. nov., holotype A31857, Beipiao City, China, Lower Cretaceous, Yixian Formation. Photographs of print (A) and counterprint (B).

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Fig. 2 in A New Chinese Mesozoic Stick Insect

Fig. 2. Susumaniid stick insect Renphasma sinica gen. et sp. nov., holotype A31857, Beipiao City, China, Lower Cretaceous, Yixian Formation. Photograph (A) and drawing (B) of tegmina. Abbreviations: CuA, cubitus anterior, CuP, cubitus posterior; MA, media anterior, MP, median posterior; RA, radius anterior; RP, radius posterior; ScP, subcosta posterior.

Fig. 4 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 4. Jurassic species originally included in Promathildia (family Gordenelllidae) (see also Fig. 1E, F). A–C. Mathilda janeti Cossmann, 1885 is designated as type species of Promathildia herein; Hérouvillette, France, late Bathonian. A. From Cossmann (1885: pl. 14: 20, 21), with protoconch in lateral (A1) and axial (A2) views. B. Last whorl with aperture; from Cossmann (1885: pl. 14: 19). C. Mathilda janeti Cossmann, 1885; from Cossmann (1885: pl. 14: 18). D. Mathilda reticularis (Piette, 1855), Le Wast, late Bathonian; from Cossmann (1885: pl. 8: 9). E. Mathilda reticularis (Piette, 1855), Rumigny, France, late Bathonian; from Cossmann (1885: pl. 17: 34), lectotype. F. Pterocera cassiope d'Orbigny, 1850, France, Oxfordian; from Piette (1864–91: pl. 35: 4).

Fig. 9 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 9. Type species and examples for Triassic and Jurassic genera of the family Tofanellidae. A, B. Tofanella laevigata (von Münster, 1841), Cassian Formation, Alpe di Specie, Dolomites, N Italy, Late Triassic A. From Bandel (1995: pl. 10: 1). B. From Bandel (1995: pl. 10: 2). C. Cristalloella (Cristalloella) cassiana Bandel, 1995, Cassian Formation, Campo, Dolomites, N Italy, Late Triassic; from Bandel (1995: pl. 10: 9). D. Cristalloella (Wonwalica) minuta Schröder, 1995, Wąwał, Poland, Valanginian; from Schröder (1995: pl. 10: 1). E. Neodonaldina elongata (Zardini, 1978), Cassian Formation, Alpe di Specie, Dolomites, N Italy, Late Triassic. Protoconch (E1) from Bandel (1996: fig. 5d), whole specimen (E2) from Bandel (1996: fig. 6a). F. Graphis rotundata (Gründel, 1998), borehole Heringsdorf 4/63, Germany, middle Callovian; from Gründel (1998: pl. 1: 5). G. Graphis albida (Kanmacher, 1798), Pliocene, Nice/France; from Bandel (2005: fig. 64). H. Camponaxis lateplicata (Klipstein, 1843), Cassian Formation, Misurina, Dolomites, N Italy, Late Triassic; from Bandel (1995: pl. 14: 3). I. Usedomella laevigatoidea (Gründel, 1993), borehole Kłęby 1/37 (formerly Klemmen), Poland, Callovian; from Gründel (1998: pl. 2: 19). J. Urlocella minuera Gründel, 1998, bore Kłęby 1/37, late Bathonian; from Gründel (1998: pl. 1: 11).

Fig. 8 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 8. Coaxial heterostrophic protoconchs of Mathilda and Tofanella sensu Bandel (1995) do not show principal differences. A. Mathilda bolina (von Münster, 1841) sensu Bandel (1995), Alpe di Specie, N Italy, Late Triassic; from Bandel (1995: pl. 2: 2). B. Tofanella cancellata Bandel, 1995, Cassian Formation, Campo, Dolomites, N Italy, Late Triassic; from Bandel (1995: pl. 11: 8).

Fig. 1 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 1. Type species and examples for Jurassic genera of the family Mathildididae. A. Mathilda angulata (Gründel, 1997), erratic boulder from Hohendorf near Wolgast 3/96/3, Germany, Callovian; from Gründel (1997: pl. 5: 73). B. Tangarilda subturritella (d'Orbigny, 1850), Kanonenberg near Halberstadt, Germany, Hettangian; from Gründel (2010: pl. 3: 3). C. Jurilda concava (Walther, 1951), borehole Kłęby (formerly Klemmen) 1/37, Poland, Bathonian; from Gründel (1997: pl. 1: 1). D. Tricarilda plana (Gründel, 1973), bore Kłęby (formerly Klemmen) 1/37, Poland, Callovian; from Gründel (1997: pl. 3: 41). E, F. The group of Turritella binaria (Jurilda or Tricarilda). These species were also originally included in Promathildia; see also Fig. 4. E. Alaria clathrata Terquem and Jourdy, 1871, Les Clapes, Bathonian; from Terquem and Jourdy (1871: pl. 4: 7). F. Turritella binaria Hébert and Eudes−Deslongchamps, 1860, La Motte Bourbon, early Callovian, Bayerische Staatssammlung für Paläontologie BSPG 2012 I 22.

Fig. 7 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 7. Type species and examples for Triassic and Jurassic genera of the family Gordenellidae. A. Camponella pianozensis (Zardini, 1985), Cassian Formation, S Tyrol, Italy, Late Triassic; from Bandel (1995: pl. 8: 7). B. Proacirsa sp., cf. struvii (Lahusen, 1883), Dubki near Saratov, Russia, late Callovian; from Gründel (2005: pl. 5: 12, 16). Whole specimen (B1), protoconch (B2). C. Proacirsa laevigata (Eudes−Deslongchamps, 1843), erratic boulder from Bauer−Wehrland, Germany, Callovian; from Gründel (2000: pl. 1: 15). D. Schafbergia crenata (Stoliczka, 1861), Schafberg near St. Wolfgang, Austria, late Pliensbachian; from Szabó (2008: fig. 87B).

Fig. 6 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 6. Type species and examples for Jurassic genera of the family Gordenellidae. A, B. Gordenella pommerana (Schmidt, 1905), Kłęby (formerly Klemmen), Poland, late Oxfordian. A. From Gründel (2000: pl. 1: 8). B. From Gründel (2000: pl. 1: 11). C. Turritelloidea opalina (Quenstedt, 1852), Mistelgau, Germany, late Toarcian, see also Gründel (2005: figs. 2/1, 3). D. New genus, new species to be described elsewhere, Buttenheim, Germany, late Pliensbachian; whole specimen (D1), early whorls (D2).

Fig. 11 in Evolution and classification of Mesozoic mathildoid gastropods

Fig. 11. Stratigraphic ranges of mathildoid genera with indications of some possible phylogenetic relationships.

Fig 5 in Evolution and classification of Mesozoic mathildoid gastropods

Fig 5. Type species and examples for the Jurassic genus Promathildia (family Gordenellidae) and protoconch of Falsoebala for comparison. A. Promathildia ziczac (Eudes−Deslongchamps, 1842), type species of Clathrobaculus, France, Early Jurassic; from Eudes−Deslongchamps (1843: pl. 11: 8, 9). Whole specimen (A1), last whorl enlarged (A2). B. Promathildia sp., cf. eucycla (Hébert and Eudes−Deslongchamps, 1860), erratic boulder from Vorpommern (NE Germany), Callovian; from Gründel (2000: pl. 1: 2). C. Promathildia sp., bore Usedom 3/63 (NE Germany), Late Bathonian, protoconch; from Gründel (1997: pl. 4: 48). D. Falsoebala compacta Gründel, 1998, bore Kłęby (formerly Klemmen) 1/37, Poland, Callovian, protoconch.