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191 results for “Fish fossils”
EOL Fossil Fishes Patch: EOL Fossil Fishes Patch
<p>Taxonomy of fossil fishes compiled from multiple sources:</p> <p>Bardack, D. & Richardson, E. S., Jr. 1977. New agnathous fishes from the Pennsylvanian of Illinois. Fieldiana, Geology 33(26):489-510. <a href="http://doi.org/10.5962/bhl.title.5167">http://doi.org/10.5962/bhl.title.5167</a></p> <p>Bardack, D. and Zangerl, R., 1968. First fossil lamprey: a record from the Pennsylvanian of Illinois. Science, 162(3859), pp.1265-1267. <a href="http://doi.org/10.1126/science.162.3859.1265">http://doi.org/10.1126/science.162.3859.1265</a></p> <p>Denison, R.H., 1967. Ordovician vertebrates from western United States. Fieldiana, Geology 16(6):131-192. <a href="http://doi.org/10.5962/bhl.title.5321">http://doi.org/10.5962/bhl.title.5321</a></p> <p>Denison, R.H., 1970. Revised classification of Pteraspididae with description of new forms from Wyoming. Fieldiana, Geology 20(1):1-41. <a href="https://doi.org/10.5962/bhl.title.3330">https://doi.org/10.5962/bhl.title.3330</a></p> <p>Dineley, D.L., 1964. New specimens of Traquairaspis from Canada. Palaeontology 7:210–219. Dineley, D. L. and Loeffler, E. J. 1976. Osctracoderm faunas of the Delorme and associated Siluro-Devonian formations, North West Territories, Canada. Spec. Pap. Paleont. 18:1-214. Dzik, J. and Moskalenko, T.A., 2016. Problematic scale-like fossils from the Ordovician of Siberia with possible affinities to vertebrates. Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen, pp.251-260. <a href="http://doi.org/10.1127/njgpa/2016/0553">http://doi.org/10.1127/njgpa/2016/0553</a> </p> <p>Janvier, P. and Lund, R., 1983. Hardistiella montanensis n. gen. et sp.(Petromyzontida) from the Lower Carboniferous of Montana, with remarks on the affinities of the lampreys. Journal of vertebrate Paleontology, 2(4), pp.407-413. <a href="http://doi.org/10.1080/02724634.1983.10011943">http://doi.org/10.1080/02724634.1983.10011943</a> </p> <p>Märss, T., 2019. Silurian cyathaspidid heterostracans of Northern Eurasia. Estonian Journal of Earth Sciences, 68(3), pp.113-146. <a href="https://doi.org/10.3176/earth.2019.11">https://doi.org/10.3176/earth.2019.11</a> </p> <p>Märss, T. and Karatajūte-Talimaa, V., 2009. Late Silurian-Early Devonian tessellated heterostraean Oniscolepis Pander, 1856 from the East Baltic and North Timan. Estonian Journal of Earth Sciences, 58(1). <a href="http://doi.org/10.3176/EARTH.2009.1.05">http://doi.org/10.3176/EARTH.2009.1.05</a> </p> <p>Paleobiology Database, PBDB, accessed at h<a>ttps://paleobiodb.org</a> </p> <p>Shu, D.G., Luo, H.L., Conway Morris, S., Zhang, X.L., Hu, S.X., Chen, L., Han, J.I.A.N., Zhu, M., Li, Y. and Chen, L.Z., 1999. Lower Cambrian vertebrates from south China. Nature, 402(6757), pp.42-46. <a href="http://doi.org/10.1038/46965">http://doi.org/10.1038/46965</a> </p> <p>Tarlo, L. B. H. 1964. Psammosteiformes (Agnatha). 1 General part. Palaeontologia Polonica 13:1-135. Tarrant, P.R., 1991. The ostracoderm Phialaspis from the Lower Devonian of the Welsh Borderland and South Wales. Palaeontology 34:399–438. Van der Laan, R., 2018. Family-group names of fossil fishes. European Journal of Taxonomy, (466). <a href="http://doi.org/10.5852/ejt.2018.466">http://doi.org/10.5852/ejt.2018.466</a> </p> <p>WoRMS Editorial Board (2020). World Register of Marine Species. Available from <a href="http://www.marinespecies.org">http://www.marinespecies.org</a> at VLIZ. <a href="https://doi.org/10.14284/170">https://doi.org/10.14284/170</a> </p> <p>Zarling, A., 2017. Phenotypic trajectories during the evolution of hybrid lineages: the case of Oophaga histrionica and Oophaga lehmanni. Thesis, Universidad de los Andes, Colombia. <a href="http://doi.org/10.1038/nature0473">http://doi.org/10.1038/nature0473</a></p>
Testing alternative hypotheses for the decline of cichlid fish in Lake Victoria using fish fossils time series from sediment cores
<p>Lake Victoria is well known for its high diversity of endemic fish species that provide livelihoods for millions of people. The lake garnered widespread attention during the twentieth century as major environmental and ecological changes modified the fish community with the extinction of ~40% of endemic cichlid species by the 1980s. Suggested causal factors include anthropogenic eutrophication, fishing, and introduced non-native species but their relative importance remains unresolved because monitoring data started in the 1970s when changes were already underway. Here, for the first time, we reconstruct two time series, covering the last ~200 years, of fish assemblage using fish teeth preserved in lake sediments. Two sediment cores Lake Victoria (Mwanza Gulf), were subsampled continuously at intra-decadal resolution, and teeth were identified to major taxa: Cyprinoidea, Haplochromini, Mochokidae, and Oreochromini. None of the fossils could be confidently assigned to non-native Nile Perch. Our data show significant decreases in haplochromine and oreochromine cichlid fish abundances began long before Nile Perch's arrival, while cyprinoids have generally been increasing. Our study is the first to reconstruct a time series of fish assemblage in Lake Victoria extending deeper back in time than the past 50 years, helping shed light on processes underlying Lake Victoria's biodiversity loss.</p>
Fig. 5 in Cenozoic fossil fishes of the extinct alepisauroid family Polymerichthyidae from the Sakhalin Island, Russia
Fig. 5. Alepisauroid fish Polymerichthys sp. from Sakhalin Island, Holmsk Formation, late Oligocene (A) and Kurasi Formation, Middle–Late Miocene (B). A. ZIN 310p, abdominal centrum. B. ZIN 314p, fragment of the dorsal fin.
Fig. 1 in Cenozoic fossil fishes of the extinct alepisauroid family Polymerichthyidae from the Sakhalin Island, Russia
Fig. 1. Location of the Sakhalin Island (A) and sketch map of the studied area (B) showing the fossil fish localities (stars).
Fig. 4 in Cenozoic fossil fishes of the extinct alepisauroid family Polymerichthyidae from the Sakhalin Island, Russia
Fig. 4. Alepisauroid fish Polymerichthys sp. from Sakhalin Island, Kurasi Formation, Middle–Late Miocene, ZIN 314p, outline drawing of specimen (A) and skull (B).
Fig. 2 in Cenozoic fossil fishes of the extinct alepisauroid family Polymerichthyidae from the Sakhalin Island, Russia
Fig. 2. Alepisauroid fish Polymerichthys sp. from Sakhalin Island, Holmsk Formation, late Oligocene (A, B) and Kurasi Formation, Middle–Late Miocene (C–E). A. ZIN 311p. B. ZIN 310p. C. ZIN 313p. D. ZIN 312p. E. ZIN 314p. Scale bars 10 mm.
FIGURE 1 in Challenges encountered during acid resin transfer preparation of fossil fish from Monte Bolca, Italy
FIGURE 1. Fourier-Transform Infrared spectrograph of the three existing polymers. Wavenumber refers to the wavelength of light and % Transmission refers to the amount of each wavelength that is transmitted through the sample. These are the parameters measured by the spectrometer to achieve an infra-red spectrum. Each peak is indicative of a different chemical bond and different substances will produce distinct patterns.
FIGURE 3. 1 in Challenges encountered during acid resin transfer preparation of fossil fish from Monte Bolca, Italy
FIGURE 3. 1, Yellowed resin shows dimpled (etched) surface. A glass plate has been added to enhance clarity. 2, Yellowed resin displaying severe cracking and near opacity.
FIGURE 2 in Challenges encountered during acid resin transfer preparation of fossil fish from Monte Bolca, Italy
FIGURE 2. Specimen NHMUK PV P1990 during preparation. 1, the block split into halves, showing mortar. 2, The underside of the block set in resin, the majority of the matrix has been removed mechanically. 3, The top of the block, with the exposed fossil, embedded in resin.
FIG. 20 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 20. — Consensus tree of 875 equally parsimonious cladograms showing the relationships of the Iberian fossil ziphiids (in bold) with other fossil and extant ziphiid genera. Tree length 94, Goloboff fit – 20.98, CI 0.53 and RI 0.72. See Bianucci et al. (2011) for the description of characters and matrix, and Appendix 1 for the coding of characters of taxa not included in that previous analysis. †, strictly fossil taxa.
FIG. 17. — A in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 17. — A, skull of Imocetus piscatus n. gen., n. sp. (ML 1359), dorsal view; B, skull of I. piscatus n. gen., n. sp. (ML 1360), dorsal view. Parallel lines indicate a break surface. Scale bar: 10 cm.
FIG. 16 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 16. — Skull of Imocetus piscatus n. gen., n. sp. (ML 1358, holotype): A, anterior view; B, corresponding line drawing; C, anterolateral view. Parallel lines indicate a break surface. Scale bar: 10 cm.
FIG. 15 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 15. — Skull of Imocetus piscatus n. gen., n. sp. (ML 1358, holotype): A, lateral view; B, corresponding line drawing; C, ventral view. Scale bar: 10 cm.
FIG. 11 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 11. — Skull of Globicetus hiberus n. gen., n. sp. (ML 1361, holotype): A, lateral view; B, corresponding line drawing; C, anterodorsal view; D, corresponding line drawing. Scale bar: 10 cm.
FIG. 5. — A-C in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 5. — A-C, Skull of Choneziphius leidyi n. sp. (SGHN MA0640); A, dorsal view; B, lateral view; C, detail of the rostrum in lateral view showing the vestigial alveolar groove; D, C. leidyi n. sp. (SGHN MA0641), partial skull in dorsal view; E, C. leidyi n. sp. (SGHN ML533), partial skull in dorsal view. Scale bar: 10 cm.
FIG. 10 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 10. — Skull of Globicetus hiberus n. gen., n. sp. (ML 1361, holotype): A, dorsal view; B, corresponding line drawing.Scale bar: 10 cm.
FIG. 8 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 8. — Skull of Tusciziphius atlanticus n. sp. (SGHN MA0632): A, lateral view; B, corresponding line drawing (the arrows indicate the level of the transverse section); C, transverse section through the rostrum; D, detail of C showing the growth layers; E, anterior view; F, corresponding line drawing. Cross-hatching indicates the presence of a concretion; tight parallel lines indicate a break surface.Scale bar: 10 cm.
FIG. 19 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 19. — Skull of aff. Ziphirostrum sp. (SGHN MA0936): A, dorsal view; B, ventral view; C, lateral view. Parallel lines indicate a break surface. Scale bar: 10 cm.
FIG. 18 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 18. — Skull of aff. Caviziphius sp. (SGHN MA0920): A, dorsal view; B, lateral view. Parallel lines indicate a break surface. Scale bar: 10 cm.
FIG. 4 in Bizarre fossil beaked whales (Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula
FIG. 4. — Skull of Choneziphius leidyi n. sp. (SGHN MA0633, holotype): A, anterior view; B, corresponding line drawing; C, ventral view. Cross-hatching indicates the presence of a concretion. Scale bar: 10 cm.
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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)
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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.