Find research datasets worth reusing

Fig. 12 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England

Fig. 12. Blattula langfeldti (Geinitz, 1880), details of venation of forewings, Lower Toarcian of Dobbertin and Grimmen: (A) FGWG 122/12, holotype of Blattula ancilla Handlirsch, 1906; (B) LGA 880; (C) FGWG 123/26, holotype of Parablattula reticulata Handlirsch, 1920; (D) FGWG 123/25, holotype of Parablattula simplicissima Handlirsch 1939; (E) FGWG 123/28, holotype of Chiloblattula simplex Handlirsch, 1939; (F) FGWG 123/27, holotype of Metablattula lipomena Handlirsch, 1939; (G) FGWG 119/2, holotype of Blattula dobbertinensis (Geinitz, 1884); (H) FGWG 122/103, holotype of Mesoblattula dobbertiniana Handlirsch, 1906.

Fig. 11 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England

Fig. 11. Blattula langfeldti (Geinitz, 1880): (A) FGWG 123/26, forewing, holotype of Parablattula reticulata Handlirsch, 1939, Dobbertin; (B) LDA 7, forewing, Dobbertin; (C) LDA 66, forewing, Dobbertin; (D) LGA 2356, forewing, Grimmen; (E) LDA 586, forewing, Dobbertin; (F) LGA 96, hindwing, Grimmen; (G) LGA 1275, hindwing, Grimmen; (H) LGA 2507, hindwing, Grimmen; (I) LGA 380, hindwing, Grimmen; (J) LDA 85, hindwing, Dobbertin.

Fig. 14 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England

Fig. 14. Blattula langfeldti (Geinitz, 1880), details of venation of hindwings, Lower Toarcian of Dobbertin (FGWG) and Grimmen (LGA): (A) FGWG 123/23, holotype of?Blattula vicina Handlirsch, 1939; (B) LGA 579; (C) LGA 96; (D) LGA 893; (E) FGWG 123/30, holotype of?Chiloblattula longipennis Handlirsch, 1939; (F) FGWG 122/250, holotype of?Blattula pusillima Handlirsch, 1906.

Fig. 1. Mesoblattina protypa Geinitz, 1880 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England

Fig. 1. Mesoblattina protypa Geinitz, 1880: (A–C) LGA 1942, forewing, Lower Toarcian of Grimmen; (D–F) FGWG 117/1, holotype, forewing, Lower Toarcian of Dobbertin.

opencc-zeroMay 2020View details →

Data from: Upper Toarcian (Lower Jurassic) marine gastropods from the Cleveland Basin, England: systematics, palaeobiogeography and contribution to biotic recovery from the early Toarcian extinction event

Here we describe a new late Toarcian (Lower Jurassic) marine gastropod fauna from rocks of the Cleveland Basin exposed on the North Yorkshire coast of England. The fossil assemblage comprises sixteen species, of which three are new: Katosira? bicarinata sp. nov., Turritelloidea stepheni sp. nov. and Striactaenonina elegans sp. nov. Four species are described in open nomenclature as Tricarilda? sp., Jurilda sp., Cylindrobullina sp. and Cossmannina sp. The other species have previously been described: Coelodiscus minutus (Schübler in Zieten), Procerithium quadrilineatum (Römer), Pseudokatosira undulata (Benz in von Zieten), Palaeorissoina aff. acuminata (Gründel, 1999b), Pietteia unicarinata (Hudleston), Globularia cf. canina (Hudleston), Striactaeonina cf. richterorum Schulbert & Nützel, Striactaenonina aff. tenuistriata (Hudleston) and Sulcoactaeon sedgvici (Phillips). Most of these species are the earliest records of their respective genera and show palaeobiogeographical connections with contemporary gastropod associations from other regions of Europe and South America. The taxonomic composition of the late Toarcian Cleveland Basin gastropod assemblage differs substantially from the faunas of the late Pliensbachian and early Toarcian Tenuicostatum Zone, showing the strong effect of the early Toarcian mass extinction event on the marine gastropod communities in the basin. Only a few gastropod species are shared between the late Toarcian faunas and the much more diverse Aalenian gastropod faunas in the Cleveland Basin, suggesting there was a facies control on gastropod occurrences at that time. This is also a potential explanation for the taxonomic differences between the late Toarcian gastropod faunas in the Cleveland Basin and those in France, and Northern and Southern Germany.

opencc-zeroDec 2017View details →

Data from: Skeletal microstructure of Stenopterygius quadriscissus (Reptilia, Ichthyosauria) from the Posidonienschiefer (Posidonia Shale, Lower Jurassic) of Germany

Ichthyosaurians (Ichthyosauria) are a major clade of secondarily aquatic marine tetrapods that occupied several major predatory niches during the Mesozoic Era. Multiple lines of evidence including isotopic, body shape and swimming modality analyses suggest they exhibited elevated growth and metabolic rates, and body temperatures. However, applications of osteohistological methods to test hypotheses regarding their physiology are few. Previous studies focused on the humeri, vertebrae and ribs from a small number of taxa. Here, we use osteohistological methods to describe the bone microstructure of over 30 cranial and post-cranial elements from a nearly complete, articulated individual of Stenopterygius quadriscissus from the Posidonienschiefer Formation (Posidonia Shale, Lower Jurassic) of Germany. The specimen shows highly vascularized primary bone and spongious secondary bone in its limbs, suggesting an overall shift to a lighter spongious structured skeleton was achieved through multiple developmental mechanisms. The modified perichondral ossification in elements of the limbs distal to the stylopodium informs our understanding of functional morphology, including hydrodynamic forces on the paddles. The ribs show variation in cortical thickness and trabecular organization along their length. Cyclical growth is inferred from changes in vascularization and osteocyte density as well as the presence of annuli in primary fibrolamellar bone. Cranial elements, due to their relative density and better preservation of growth marks, may prove to be of particular importance in future skeletochronological studies of post-Triassic ichthyosaurians. We infer and corroborate hypotheses of elevated growth rates and metabolic rates in ichthyosaurians, and the potential for thermoregulation similar to extant homeothermic ectotherms.

opencc-by-4.0Jul 2024View details →

A new Archaeopteryx from the lower Tithonian Mörnsheim Formation at Mühlheim (Late Jurassic)

Landmark data for manual unguals of Archaeopteryx and Anchiornis

opencc-by-4.0Jun 2008View details →

Fig. 3 in Lower and Middle Jurassic ammonoids of the Shemshak Group in Alborz, Iran and their palaeobiogeographical and biostratigraphical importance

Fig. 3. Upper part of the Shemshak Group at Sharif−Abad.

opencc-by-4.0Apr 2017View details →

FIGURE 2 in The genera Architipula Handlirsch, 1906 and Grimmenia Krzemiński and Zessin, 1990 (Diptera: Limoniidae) from the Lower Jurassic of England

FIGURE 2. Wing venation of Architipula seebachi (Geinitz, 1884). SGWG 119/6, holotype.

opencc-by-4.0Apr 2017View details →

FIGURE 3 in The genera Architipula Handlirsch, 1906 and Grimmenia Krzemiński and Zessin, 1990 (Diptera: Limoniidae) from the Lower Jurassic of England

FIGURE 3. Wing venation of Architipula anglicana (Tillyard, 1933). In. 11298, holotype.

opencc-by-4.0Apr 2017View details →

FIGURE 4 in The genera Architipula Handlirsch, 1906 and Grimmenia Krzemiński and Zessin, 1990 (Diptera: Limoniidae) from the Lower Jurassic of England

FIGURE 4. Wing venation of Grimmenia tillyardi new species. I. 3328, holotype.

opencc-zeroDec 2004View details →

FIG. 8 in A revision of the Upper Jurassic-Lower Cretaceous dragonfly family Tarsophlebiidae, with a discussion on the phylogenetic positions of the Tarsophlebiidae and Sieblosiidae (Insecta, Odonatoptera, Panodonata)

FIG. 8. — Phylogeny of the major groups of Odonatoptera, hypothesis of Bechly (1996).

opencc-zeroDec 2004View details →

FIG. 4 in A revision of the Upper Jurassic-Lower Cretaceous dragonfly family Tarsophlebiidae, with a discussion on the phylogenetic positions of the Tarsophlebiidae and Sieblosiidae (Insecta, Odonatoptera, Panodonata)

FIG. 4. — Turanophlebia neckini (Martynov, 1927) n. comb., holotype (PIN 2452/3). Scale bar: 10 mm.

opencc-zeroDec 2004View details →

FIG. 3 in A revision of the Upper Jurassic-Lower Cretaceous dragonfly family Tarsophlebiidae, with a discussion on the phylogenetic positions of the Tarsophlebiidae and Sieblosiidae (Insecta, Odonatoptera, Panodonata)

FIG. 3. — Turanophlebia martynovi Pritykina, 1968, holotype (PIN 2554/21). Scale bar: 10 mm.

opencc-zeroDec 2001View details →

FIG. 8 in Structure and genesis of the lower structural unit of the Samarka Jurassic accretionary prism (Sikhote-Alin, Russia)

FIG. 8. — Model of the mechanism of olistostrome formation. See legend on Fig. 5.

opencc-by-4.0Jun 2007View details →

Figure 7 in The skull of Yunnanosaurus huangi Young, 1942 (Dinosauria: Prosauropoda) from the Lower Lufeng Formation (Lower Jurassic) of Yunnan, China

Figure 7. Left maxillary teeth of Yunnanosaurus huangi (NGMJ 004546). Scale bar equals 10 mm.

opencc-by-4.0Aug 2022View details →

Fossil isopod from the Lower Jurassic of Kircheim unter Teck GPIT-PV-76948 µCT scan

One fossil specimen of the group Isopoda, described as Palaega suevica Reiff, 1936, head and anterior-most trunk region, Lower Jurassic, Pliensbachian, Amaltheenton Formation, Kirchheim unter Teck, Germany, deposited at the collection of the University of Tübingen, accession number GPIT-PV-76948. X-ray µCT scan, performed using a Phoenix (GE Sensing & Inspection Technologies GmbH) Nanotom M scanner, 120 kV,  100 µA, 4.55246 µm3 voxel size.

Fig. 6 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England

Fig. 6. Rhipidoblattina geikiei (Scudder, 1886), holotype, details of forewing venation.

publicNov 2018View details →

Data from: Skeletal microstructure of Stenopterygius quadriscissus (Reptilia, Ichthyosauria) from the Posidonienschiefer (Posidonia Shale, Lower Jurassic) of Germany

Open the record for dataset details and reuse information.