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919 results for “Fossil species”
Figure 3 in A new fossil species of Procellaria (Aves: Procellariiformes) from the Pliocene of New Zealand
Figure 3. General location in Taranaki where the fossil was found.
Figure 1 in A new fossil species of Procellaria (Aves: Procellariiformes) from the Pliocene of New Zealand
Figure 1. Plate illustrating how each bone element was measured.
Data from: Species discrimination of co-occurring small fossil mammals: a case study of the Cretaceous-Paleogene multituberculate genus Mesodma
The mammalian fossil record is largely composed of isolated teeth and tooth-bearing elements. In vertebrate microfossil assemblages with closely related, co-occurring species of mammals, it can be difficult to identify isolated teeth to species level because morphological differences among species may be slight and based on a single tooth position. Here we investigate the utility of the allegedly diagnostic lower fourth premolar (p4) for species-level identification in the genus Mesodma (Multituberculata, Neoplagiaulacidae). We conducted linear and geometric morphometrics on 86 p4s representing four Cretaceous-Paleogene (K-Pg) species of Mesodma that are common in deposits of the western interior of North America. Although Mesodma has been extensively discussed in the literature, these four species overlap considerably in p4 size and shape, making species-level identifications challenging. Using linear measurements, landmarks, and semilandmarks, we quantified p4 size and shape to understand morphological variation across the genus and uncover practical sources of morphological differentiation among the species represented here. Our results indicate (1) size is more important than shape for identifying p4s of Mesodma species; p4 shape varies across the genus, but cannot be used alone to identify isolated p4s to species; (2) M. garfieldensis and M. thompsoni cannot be distinguished from each other using p4 size or shape; we therefore subsume M. garfieldensis within M. thompsoni; and (3) M. formosa increased in size across the K-Pg boundary. In light of these results, we recommend that taxonomic diagnoses relying on isolated teeth incorporate quantitative analyses of morphology whenever possible to increase the accuracy of species-level identifications and paleofaunal studies that employ them.
FIGURES 1–3 in New records and species of Crepidodera Chevrolat (Coleoptera: Chrysomelidae) in Eocene European amber, with a brief review of described fossil beetles from Bitterfeld amber
FIGURES 1–3. Crepidodera tertiotertiaria sp. nov., holotype: 1—habitus, dorsal view; 2—habitus, ventral view; 3—head, frontal view.
FIGURES 10–12 in New records and species of Crepidodera Chevrolat (Coleoptera: Chrysomelidae) in Eocene European amber, with a brief review of described fossil beetles from Bitterfeld amber
FIGURES 10–12. Crepidodera decolorata Nadein & Perkovsky: 10—habitus, dorsal view, specimen "337-3" [CCHH]; 11— habitus, ventral view, specimen "4943 C" [GPIH]; 12—habitus, lateral view, specimen "1464 C" [GPIH].
FIGURES 7–9 in New records and species of Crepidodera Chevrolat (Coleoptera: Chrysomelidae) in Eocene European amber, with a brief review of described fossil beetles from Bitterfeld amber
FIGURES 7–9. Crepidodera tertiotertiaria sp. nov.: 7—details of elytra and pronotum, lateral view, paratype "4436 C" [GPIH]; 8—habitus, ventral view, non-type specimen "337-2" [CCHH]; 9—exposed styli, dorsal view, non-type specimen "337-2" [CCHH].
FIGURES 4–6 in New records and species of Crepidodera Chevrolat (Coleoptera: Chrysomelidae) in Eocene European amber, with a brief review of described fossil beetles from Bitterfeld amber
FIGURES 4–6. Crepidodera tertiotertiaria sp. nov.: 4—details of anterior part of body, paratype "AB 044" [CAB]; 5— habitus, lateral view, paratype "4436 C" [GPIH]; 6—claws of metatarsus, non-type specimen "337-2" [CCHH].
FIGURE 3 in Description of a new fossil Anthoxyela species (Hymenoptera, Xyelidae) from Yixian Formation of Northeast China
FIGURE 3. Anthoxyela orientalis sp. nov., line drawing of holotype CNU-HYM-LB-2008003. A. right forewing; B. head; C. antenna.
FIGURE 3 in A new, first fossil species of Ophioderma MHller and Troschel, 1842 (Echinodermata: Ophiuroidea) (Late Miocene, Argentina)
FIGURE 3. Present and Miocene geographic distribution of Ophioderma in the Americas. According to Martínez and del Río (2002) in the Miocene the influence of the proto Brazilian Current (Br) reached the present Península Valdés area, where now the Malvinas (Falkland Current) is operating..
FIGURE 2 in A new, first fossil species of Ophioderma MHller and Troschel, 1842 (Echinodermata: Ophiuroidea) (Late Miocene, Argentina)
FIGURE 2. Stratigraphic section at Estancia San Lorenzo. Location of the specimens of Ophioderma bonaudoae n.sp. indicated by the star.
FIGURE 1 in A new, first fossil species of Ophioderma MHller and Troschel, 1842 (Echinodermata: Ophiuroidea) (Late Miocene, Argentina)
FIGURE 1. Geographic location (star) where the specimens of Ophioderma bonaudoae n.sp. were collected.
FIGURES 11–13 in A new genus and two new species of fossil Elaterids from the Yixian Formation of Western Liaoning, China (Coleoptera: Elateridae)
FIGURES 11–13. Paralithomerus parallelus sp. nov., 11—dorsal view, 12—prothorax, 13—apical half of elytron.
FIGURES 5–8 in A new genus and two new species of fossil Elaterids from the Yixian Formation of Western Liaoning, China (Coleoptera: Elateridae)
FIGURES 5–8. Paralithomerus exquisitus gen. et sp. nov. holotype, 5—mesoventrite, 6—hind legs, 7—apical half of elytron, 8—oviposotor.
FIGURES 1–4 in A new genus and two new species of fossil Elaterids from the Yixian Formation of Western Liaoning, China (Coleoptera: Elateridae)
FIGURES 1–4. Paralithomerus exquisitus gen. et sp. nov., holotype. 1—CNU-C-LB2006874-1, 2—CNU-C- LB2006874-2, 3—head, 4—prothorax.
FIGURE 2. Calathus elpis n in Fossil carabids from Baltic amber – I – A new species of the genus Calathus Bonelli, 1810 (Coleoptera: Carabidae: Pterostichinae)
FIGURE 2. Calathus elpis n. sp. camera lucida drawings. a. prosternal coxae; b. metaepisternum; c. mesosternal coxae; d. metasternal coxae. (scale: 0.5 mm).
FIGURE 3. Calathus elpis n in Fossil carabids from Baltic amber – I – A new species of the genus Calathus Bonelli, 1810 (Coleoptera: Carabidae: Pterostichinae)
FIGURE 3. Calathus elpis n. sp. camera lucida drawings. a. right antennomeres; b. right prothoracic tibia and tarsus; c. right mesothoracic tibia and tarsus; d. right metathoracic tarsus; e. onychium in ventral view. (scale: 0.5 mm).
FIGURE 1. Calathus elpis n in Fossil carabids from Baltic amber – I – A new species of the genus Calathus Bonelli, 1810 (Coleoptera: Carabidae: Pterostichinae)
FIGURE 1. Calathus elpis n. sp. Photographs: a. piece of amber; b. dorsal view; c. ventral view. Drawing: d. specimen in dorsal view (scale: 2 mm).
FIGURE 17 in New species of Crotonia (Acari: Oribatida: Camisiidae) from Nothofagus and Eucalyptus forests in Victoria, Australia, with a redescription of the fossil species Crotonia ramus (Womersley, 1957)
FIGURE 17. Posteriolateral views of a) Crotonia momitoi sp. nov., male paratype; b) Crotonia blacki sp. nov. female paratype; c) Crotonia gadubanudi sp. nov.; d) Crotonia alpina sp. nov.; e) Crotonia cornuta sp. nov.; f) Crotonia victoriae sp. nov.
FIGURE 15 in New species of Crotonia (Acari: Oribatida: Camisiidae) from Nothofagus and Eucalyptus forests in Victoria, Australia, with a redescription of the fossil species Crotonia ramus (Womersley, 1957)
FIGURE 15. Crotonia gadubanudi sp. nov. paratype female a) subcapitulum b) Oral setae (or). Oral setae of c) C. momitoi sp. nov. paratype female; d) C. blacki sp. nov. paratype female; e) C. alpina sp. nov.; f) C. cornuta sp. nov.; g) C. victoriae sp. nov. AS = adoral sclerite; G = gena; H = mentum; RU = rutellum.
FIGURE 19 in New species of Crotonia (Acari: Oribatida: Camisiidae) from Nothofagus and Eucalyptus forests in Victoria, Australia, with a redescription of the fossil species Crotonia ramus (Womersley, 1957)
FIGURE 19. Distribution map of Crotonia spp. in Victoria. Stippled area is the distribution of the broad vegetation group categorised as 'wet or damp forests' (Department of Sustainability and Environment, 2005). NP = National Park; SF = State Forest. Black circles are towns and cities, provided for spatial reference. Inset: 30-year means of annual rainfall (source: Australian Bureau of Meteorology, www.bom.gov.au).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.