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Figure 3 in Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae)

Figure 3. Pilosarachne ju Jiang & Li, gen. & sp. nov., holotype male. A. Left palp, retrolateral view. B. Bulb of left palp, ventral view. C. Right palp, dorsal view, horizontally flipped for the sake of comparison. D. Left palp, ventral view. Scale bars: A, C–D = 0.5 mm; B = 0.2 mm.

Figure 4 in Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae)

Figure 4. Piece of amber IZCAS-Ar41630Fo with inclusion of Gigarachne bian Jiang & Li, gen. & sp. nov., holotype male. A. Dorsal view. B. Ventral view. Scale bars = 10.0 mm.

Figure 2 in Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae)

Figure 2. Pilosarachne ju Jiang & Li, gen. & sp. nov., holotype male. A. Habitus, lateral view. B. Tarsal claws of left leg II, lateral view. C. Tarsal claws of right leg II, ventral-apical view. D. Spinnerets, ventral view. E. Carapace, dorsal view. F. Chelicerae, anterior view. Scale bars: A = 2.0 mm; B–C, E = 1.0 mm; D, F = 0.5 mm.

Figure 1 in Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae)

Figure 1. Piece of amber IZCAS-Ar41629Fo with inclusion of Pilosarachne ju Jiang & Li, gen. & sp. nov., holotype male. A. Lateral view. B. Dorsal view. Scale bars = 10.0 mm.

opencc-by-4.0Oct 2022View details →

Cryptolacruma nidis (Isopoda: Epicaridea), Kachin amber, PED 0226, µCT scan

Two fossil specimens preserved in Kachin amber (Myanmar, mid-Cretateous), described as Cryptolacruma nidis Schädel, Hörnig, Hyžný & Haug 2021 (https://doi.org/10.1007/s12542-021-00564-9), holotype and paratype, PED 0226, µCT data, 10x objective, 40 kV, 8 W, 4 s exposure time. TIF format, system based calculated pixel size = 1.5 µm.

The smallest stag beetles (Coleoptera, Lucanidae): hidden paleodiversity in mid-Cretaceous Kachin amber from northern Myanmar

The original figure plates and associated images of the fossil specimens used in the study. Yamamoto, S. (2023) The smallest stag beetles (Coleoptera, Lucanidae): hidden paleodiversity in mid-Cretaceous Kachin amber from northern Myanmar. Evolutionary Systematics, 7(2): 211–235. (doi: 10.3897/evolsyst.7.104597). URL: <a href="https://evolsyst.pensoft.net/article/104597/">https://evolsyst.pensoft.net/article/104597/</a>   Abstract The fossil record of stag beetles (Lucanidae), especially in Mesozoic amber, is sparse. Four additional fossil lucanids preserved in mid-Cretaceous Kachin amber from northern Myanmar are here reported. All of these species are included in the primitive subfamily Aesalinae, and have been identified as: Protonicagus mandibularis sp. nov. (tribe Nicagini); Cretognathus minutissimus gen. et sp. nov. (tribe Ceratognathini); Ceratognathini gen. et sp. indet. 1 (provisional assignment); and Ceratognathini gen. et sp. indet. 2 (provisional assignment). Except for Protonicagus mandibularis sp. nov., the stag beetles appear to be connected to the continent of Gondwana, as with the Kachin amber paleofauna. More interestingly, these species have significantly smaller bodies than the extant species, with three of them measuring less than 3 mm, which makes them the smallest known species of Lucanidae. This finding is congruent with a trend toward miniaturization in several unrelated lineages of Kachin amber beetles, and it shows hidden paleodiversity of stag beetles during the Cretaceous.   Key Words Aesalinae, Burmese amber, Cenomanian, Ceratognathini, fossil, Mesozoic, Nicagini, Scarabaeoidea

opencc-by-4.0Aug 2024View details →

Confocal and micro-CT data of Eucinetus spp. from Kachin amber

<div>This dataset contains the raw confocal laser scanning microscopy (CLSM) slices and X-ray microtomography (micro-CT) slices for the holotypes of Eucinetus debilispinus (NIGP203939), Eucinetus panghongae (NIGP203940) and Eucinetus zhenhuai (NIGP203941). This dataset is associated with the publication "Three new species of the extant genus Eucinetus from mid-Cretaceous amber of northern Myanmar (Coleoptera: Eucinetidae)" (DOI:10.11646/zootaxa.5492.2.4).</div> <div> </div> <div>Confocal images were obtained with a Zeiss LSM710 confocal laser scanning microscope, using the 488 nm Argon laser excitation line. The original CZI files are provided, which could be opened by the ZEISS ZEN software.</div> <div> </div> <div>Micro-CT data were obtained with a Zeiss Xradia 520 Versa 3D X-ray microscope. Scanning parameters were as follows: NIGP203939 [isotropic voxel size, 2.2345 μm; power, 3 W; acceleration voltage, 40 kV; exposure time, 2 s; projections, 1401]; NIGP203940 [isotropic voxel size, 2.9369 μm; power, 3 W; acceleration voltage, 40 kV; exposure time, 4 s; projections, 2601]; NIGP203941 [isotropic voxel size, 3.5820 μm; power, 3 W; acceleration voltage, 40 kV; exposure time, 2 s; projections, 2501]. The TIFF stacks are provided.</div>

Figure 4 in A new species of the extant genus Bulasconotus from mid-Cretaceous Kachin amber (Coleoptera: Zopheridae: Colydiinae)

Figure 4. Extant Bulasconotus solomon Ślipiński & Lawrence. (A) NHMUK015543699, holotype, dorsal view. (B) NHMUK015543700, paratype, ventral view. Photography by Keita Matsumoto. © Natural History Museum, London, licensed under CC BY 2.0.

Figure 2 in A new species of the extant genus Bulasconotus from mid-Cretaceous Kachin amber (Coleoptera: Zopheridae: Colydiinae)

Figure 2. General habitus of Bulasconotus carinisternus Li, Ślipiński & Cai sp. nov., holotype, NIGP203566, under confocal microscopy. (A) Dorsal view. (B) Ventral view. Scale bars: 500 μm.

Figure 3 in A new species of the extant genus Bulasconotus from mid-Cretaceous Kachin amber (Coleoptera: Zopheridae: Colydiinae)

Figure 3. Details of Bulasconotus carinisternus Li, Ślipiński & Cai sp. nov., holotype, NIGP203566, under confocal microscopy. (A) Head, ventral view. (B) Prothorax, dorsal view. (C) Prothorax, ventral view, with arrowhead indicating the median carina on the prosternal process. (D) Fore leg. (E) Abdominal base, ventral view. (F) Abdominal apex, ventral view. (G) Elytral base, dorsal view. (H) Head, dorsal view. Abbreviations: a2-11 = antennomeres 2-11; amc = admedian carina; el = elytron; lbp = labial palp; md = mandible; mtc = metacoxa; mtes = metanepisternum; mtv = metaventrite; mxp = maxillary palp; ps = prosternum; ptb = protibia; pts = protarsus; sc = scutellum; slc = sublateral carina; v1-5 = ventrites 1-5. Scale bars: 100 μm.

Figure 1 in A new species of the extant genus Bulasconotus from mid-Cretaceous Kachin amber (Coleoptera: Zopheridae: Colydiinae)

Figure 1. General habitus of Bulasconotus carinisternus Li, Ślipiński & Cai sp. nov., holotype, NIGP203566, under incident light. (A) Dorsal view. (B) Ventral view. Scale bars: 500 μm.

Fig. 15 in Fossil Cantharidae from the Cretaceous Burmese (Kachin) amber of the Patrick Müller collection, and taxonomic information

Fig. 15. Sanaungulus myanmaricus sp. nov. in Burmese amber. Holotype, lateral view.

Fig. 12 in Fossil Cantharidae from the Cretaceous Burmese (Kachin) amber of the Patrick Müller collection, and taxonomic information

Fig. 12. Sanaungulus kachinensis sp. nov. in Burmese amber. A–B: Holotype, lateral views.

Fig. 10 in Fossil Cantharidae from the Cretaceous Burmese (Kachin) amber of the Patrick Müller collection, and taxonomic information

Fig. 10. Sanaungulus franziskaeweissbachae sp. nov. in Burmese amber. Holotype, lateral view.

FIGURE 4 in A new species of Burmalestes Tomaszewska & Ślipiński from mid-Cretaceous Kachin amber (Coleoptera: Endomychidae)

FIGURE 4. Details of Burmalestes jingruoyaae Li & Cai sp. nov., holotype, NIGP203386, under confocal microscopy. A, Head, ventral view. B, Pro- and mesothorax, ventral view. C, Abdominal apex, ventral view. D, Antenna, ventral view. E, Head, dorsal view. F, Prothorax, dorsal view. G, Fore leg. H, Mid leg. I, Hind leg. Abbreviations: a1–5, antennomeres 1–5; gl, galea; lbp, labial palp; md, mandible; msc, mesocoxa; msf, mesofemur; mstb, mesotibia; mstc, mesotrochanter; msts, mesotarsus; mttb, metatibia; mtts, metatarsus; mxp, maxillary palp; pc, procoxa; pf, profemur; ps, prosternum; ptb, protibia; pts, protarsus; v1–5, ventrites 1–5. Scale bars = 100 μm.

FIGURE 2 in A new species of Burmalestes Tomaszewska & Ślipiński from mid-Cretaceous Kachin amber (Coleoptera: Endomychidae)

FIGURE 2. General habitus of Burmalestes jingruoyaae Li & Cai sp. nov., holotype, NIGP203386, under widefield fluorescence. A, Dorsal view. B, Ventral view. Scale bars = 500 μm.

FIGURE 1 in A new species of Burmalestes Tomaszewska & Ślipiński from mid-Cretaceous Kachin amber (Coleoptera: Endomychidae)

FIGURE 1. General habitus of Burmalestes jingruoyaae Li & Cai sp. nov., holotype, NIGP203386, under incident light. A, Dorsal view. B, Ventral view. Scale bars = 500 μm.

FIGURE 3 in A new species of Burmalestes Tomaszewska & Ślipiński from mid-Cretaceous Kachin amber (Coleoptera: Endomychidae)

FIGURE 3. General habitus of Burmalestes jingruoyaae Li & Cai sp. nov., holotype, NIGP203386, under confocal microscopy. A, Dorsal view. B, Ventral view. Scale bars = 500 μm.

opennotspecifiedDec 2021View details →

FIGURE 1 in Discovery of a new symphytan wasp in the mid-Cretaceous Kachin amber (Hymenoptera, Syspastoxyelidae)

FIGURE 1. Grandixyela rasnitsyni gen. et sp. nov., holotype. A, Dorsal view. B, Ventral view. C, Head and antenna, ventral view. D, Foreleg, dorsal view. E, Mid-, hindleg and claw, dorsal view. F, Pterostigma, ventral view. G, Genitalia, ventral view. Scale bars: A and B = 1 mm; C–G = 0.5 mm.