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Figs. 5–9. Carinumerus maddisoni, new species. 5 in New Fossil Histerid Species from Cretaceous Burmese Amber (Coleoptera: Histeridae)

Figs. 5–9. Carinumerus maddisoni, new species. 5) Anterior view; 6) Dorsal view; 7) Lateral view; 8) Ventral view; 9) Posterior view (pygidia).

Figs. 1–4. Phasmister cristatus, new species. 1 in New Fossil Histerid Species from Cretaceous Burmese Amber (Coleoptera: Histeridae)

Figs. 1–4. Phasmister cristatus, new species. 1) Anterior view; 2) Dorsal view; 3) Lateral view; 4) Ventral view.

Figs. 14–17. Druantia aeterna, new species. 14 in New Fossil Histerid Species from Cretaceous Burmese Amber (Coleoptera: Histeridae)

Figs. 14–17. Druantia aeterna, new species. 14) Anterior view; 15) Dorsal view; 16) Lateral view; 17) Ventral view.

Figs. 10–13. Yethiha peregrina, new species. 10 in New Fossil Histerid Species from Cretaceous Burmese Amber (Coleoptera: Histeridae)

Figs. 10–13. Yethiha peregrina, new species. 10) Anterior view; 11) Dorsal view; 12) Lateral view; 13) Ventral view.

opennotspecifiedMar 2016View details →

Figs. 1–5. Caulophilus ayotzinapa. 1 in A New Fossil Species ofCaulophilusWollaston, 1854 (Coleoptera: Curculionidae: Cossoninae) from Mexican Amber

Figs. 1–5. Caulophilus ayotzinapa. 1) Habitus, dorsal view; 2) Habitus, lateral view; 3) Habitus, ventral view;

opennotspecifiedOct 2018View details →

FIGURE 2 in A new fossil species of Euroleptochromus Jałoszyński (Coleoptera: Staphylinidae: Scydmaeninae) from Eocene Baltic amber

FIGURE 2. Details of Euroleptochromus tuberculatus. A. Lateral habitus. B. Head, right maxillary palpus, and right antenna. C. Lateral view of head, showing postgenal tubercle, bristles, and angulate expansion of maxillary palpomere II. D. Profemur, with five ventral spines. Abbreviations: a1–11—antennomeres I–XI, b—bristle, ce—compound eye, mp2–4—maxillary palpi II–IV, pfe—profemur, pgb—postgenal bristle, ptr—protrochanter. Scale bar: 0.5 mm in A–B, 0.2 mm in C–D.

opennotspecifiedOct 2018View details →

FIGURE 1 in A new fossil species of Euroleptochromus Jałoszyński (Coleoptera: Staphylinidae: Scydmaeninae) from Eocene Baltic amber

FIGURE 1. Habitus of Euroleptochromus tuberculatus. A. Dorsal view. B. Ventral view. Abbreviations: 1–4—rows of punctures 1–4, ant—antenna, mp—maxillary palpus, mtc—metacoxa, s3–8—sternites III–VIII. Scale bar: 1.0 mm.

opennotspecifiedSep 2018View details →

Fig. 1 in Rancho La Brea Fossil Indicates Native Nearctic Status for Necrobia violacea (Linnaeus) (Coleoptera: Cleridae), a Species Previously Considered a Synanthropic Introduction to North America

Fig. 1. Stacked photographs of the heads and pronota of Necrobia species. A) Modern, British N. violacea from the British Collection in the Natural History Museum, London, photographed by RBA, B) Fossil N. violacea from the Rancho La Brea Tar Pits, photographed by ARH, C) Modern, British N. rufipes from the British Collection in the Natural History Museum, London, photographed by RBA.

Figure 19 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 19. Phylogenetic relationships of Miocaperea pulchra gen. et sp. nov.: 50% majority rule strict consensus bootstrap tree. Statistics: tree length, 1068 steps; consistency index, 0.3287; consistency index excluding uninformative characters, 0.3204; rescaled consistency index, 0.2079; homoplasy index, 0.6713; homoplasy index excluding uninformative characters, 0.6796; retention index, 0.6325.

Figure 22 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 22. Phylogram showing the phylogenetic relationships of mysticetes. Branch lengths are proportional to the number of synapomorphies. Tree statistics are the same as reported in the legend to Figure 17.

Figure 16 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 16. Caperea marginata: auditory ossicles – malleus, incus, and stapes. A–D, stapes; E–G, incus; H–L, malleus. Not to scale. See Anatomical abbreviations for definitions of the acronyms.

Figure 21 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 21. Individual variation of the dentary of Caperea marginata. ISAM ZM 40626: A, lateral view; B, medial view; C, dorsal view. ISAM ZM 41126: D, medial view; E, lateral view; F, dorsal view. G, anterior end of left dentary (ISAM ZM 40626); H, posterior end in posterior view (ISAM ZM 40626). Scale bars: 100 mm. See Anatomical abbreviations for definitions of the acronyms. ISAM ZM 41126 is a juvenile individual, characterized by an elongated and slender dentary, with dorsal border nearly parallel with the ventral border. ISAM ZM 40626 is an older individual, characterized by the higher mandibular ramus with strong raised dorsal border. Note the different orientation of the articular condyle: it is more posteriorly oriented in the juvenile (D–F), but is dorsal in the adult (A–C). Note the scarce development of the pterygoid groove separating the condyle from the angular process. The angular process is rounded and scarcely developed, resembling that of Balaenidae.

Figure 15 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 15. Miocaperea pulchra gen. et sp. nov.: auditory ossicles. A, right incus and stapes, in situ; B, schematic representation of right incus and stapes, in situ; C, left stapes, in situ; D, schematic representation of right stapes, in situ. See Anatomical abbreviations for definitions of the acronyms.

Figure 13 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 13. Miocaperea pulchra gen. et sp. nov.: left and right periotics in situ. A, B, right periotic; C, D, left periotic. Scale bar: 20 mm. See Anatomical abbreviations for definitions of the acronyms.

Figure 11 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 11. Skull in posterior view. A, Miocaperea pulchra gen. et sp. nov.; B, Caperea marginata (specimen ZM 41126). Scale bars: 100 mm. See Anatomical abbreviations for definitions of the acronyms.

Figure 10 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 10. Miocaperea pulchra gen. et sp. nov.: holotype, basicranium, left side. A, holotype skull; B, schematic representation. Scale bars: 50 mm. See Anatomical abbreviations for definitions of the acronyms.

Figure 9 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 9. Vertex of Neobalaenidae. A, B, Caperea marginata specimen ISAM ZM 41126, a possibile young adult; C, D, Caperea marginata specimen ISAM 03/06 (on display), a juvenile (not newborn) individual. E, F, Miocaperea pulchra gen. et sp. nov. (holotype), reconstruction of vertex. Not to scale. See Anatomical abbreviations for definitions of the acronyms. Note that in the living C. marginata, the bone arrangement at the cranial vertex differs in relation to the age of the individuals. In fact, in the young adult individual the interorbital region of the frontal is reduced to an anteroposteriorly compressed portion, but in the juvenile this region is further expanded. Moreover, in the adult individual, the posteromedial corners of the maxilla are located under the supraoccipital, but in the juvenile they are separated from it.

Figure 8 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 8. Schematic representation of the structure of the temporal fossa in Neobalaenidae. A, Miocaperea pulchra gen. et sp. nov., right squamosal in anterodorsal view; B, M. pulchra gen. et sp. nov., left squamosal in anterodorsal view; C, M. pulchra gen. et sp. nov., sketch of right squamosal in anterodorsal view; D, M. pulchra gen. et sp. nov., sketch of left squamosal in anterodorsal view; E, Caperea marginata (ZM 41126), right temporal fossa in ventrolateral view; F, C. marginata (ZM 41126), sketch of right temporal fossa in ventrolateral view. Scale bars: 50 mm. See Anatomical abbreviations for definitions of the acronyms.

Figure 7 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 7. Caperea marginata: specimen AMNH AMO 36692 in right lateral view, showing baleen. Scale bar: 200 mm. The specimen is older than the other specimens represented in Figure S1. Note the angle between the posterior projection of the exoccipital and the dorsal surface of the supraoccipital: this arrangement corresponds to a different geometry of the posterior portion of the skull in the adult individual, with respect to the juveniles of Figure S3.

Figure 6 in Comparative osteology and phylogenetic relationships of Miocaperea pulchra, the first fossil pygmy right whale genus and species (Cetacea, Mysticeti, Neobalaenidae)

Figure 6. Miocaperea pulchra gen. et sp. nov.: holotype, baleen. A, skull in right lateral view; B, rostrum in ventral view, showing the baleen; C, rostrum in right ventrolateral view, showing the whole baleen series as preserved; D, close-up view of right baleen series in lateral view; E, close-up view of left baleen series in ventrolateral view (ventral is upside). Scale bars: 50 mm.