Find research datasets worth reusing

opencc-by-4.0Aug 2024View details →

Paleoecology of an extinct Cervidae (Haploidoceros mediterraneus) of Middle-Late Pleistocene in Southern Europe

Dental meso- and microwear data for the Haploidoceros mediterraneus and other cervid (Cervus, Megaloceros, Praedama, Dama) populations from Gruta da Aroeira, Igue des Rameaux, Lunel-Viel I, PRERESA, Cova del Rinoceront.  Corresponding to the paper :

Fig. 6 in Paleoecology of the large carnivore guild from the late Pleistocene of Argentina

Fig. 6. Schematic representation of the "imbalance" hypothesis (A) and an alternative hypothesis (B).

Fig. 5 in Paleoecology of the large carnivore guild from the late Pleistocene of Argentina

Fig. 5. General trophic relationships between the Lujanian carnivores and their main prey grouped by size classes. Black arrows: frequent preys; Grey arrows: occasional preys. The reconstructions are not drawn to scale (see the text for body mass estimations). Upper section (from left to right): a giant armadillo (Pampatherium typum Ameghino, 1875), a deer [Morenelaphus lujanensis (Ameghino, 1888)]; a capybara [Neochoerus aesopi (Leidy, 1854)]; a horse [Hippidion principale (Lund, 1840)]; a guanaco (Lama guanicoe Müller, 1776); a mastodon [Stegomastodon platensis (Ameghino, 1888)]; a glyptodont [Panochthus tuberculatus (Owen, 1845)]; a litoptern (Macrauchenia patachonica Owen, 1838); a toxodont (Toxodon platensis Owen, 1837); and the giant ground sloth (Megatherium americanum Cuvier, 1796). Lower section (from left to right): short faced bears (Arctotherium bonariense (Gervais, 1852) and Arctotherium tarijense Ameghino, 1902); a large fox [Dusicyon avus (Burmeister, 1866)]; large conical toothed felid [Panthera onca (Linnaeus, 1758) and Puma concolor (Linnaeus, 1771)]; a wolf [Canis nehringi (Ameghino, 1902)]; and a sabertoothed cat [Smilodon populator (Lund, 1842)].

Fig. 2 in Paleoecology of the large carnivore guild from the late Pleistocene of Argentina

Fig. 2. Frequencies of herbivore body mass (>10 kg) from the Lujanian of the Pampean Region (Argentina). A. Total sample. B. Herbivores with body mass between 10–1000 kg.

Fig. 1 in Paleoecology of the large carnivore guild from the late Pleistocene of Argentina

Fig. 1. Carnivore community structure of the Lujanian of the Buenos Aires province, Argentina (A), Pit 91 of Rancho La Brea, USA (B), and of three living faunas (Serengueti, Tanzania (C), Chitawan, Nepal (D), and Yellowstone, USA (E)), expressed in scatterplots of the carnivore body mass (kg) and maximum prey size (kg). This graphic was made with information from Schaller (1972), Ewer (1973), Van Valkenburgh (1985), Skinner and Smithers (1990), Nowak (1991), Silva and Downing (1995b), Van Valkenburgh and Hertel (1998), Sunquist and Sunquist (2002), Spencer et al. (2003), and Sillero Zubiri et al. (2004).

Fig. 4 in Paleoecology of the large carnivore guild from the late Pleistocene of Argentina

Fig. 4. Bivariate plot of log−transformed body size vs. population density for 12 species of African carnivores. Full lines: regression line (least squares adjustment) Dotted lines: 95% confidence intervals. pp: Panthera pardus (Linnaeus, 1758); pl: Panthera leo (Linnaeus, 1758); ac: Acinonyx jubatus (Schreber, 1775); cr: Crocuta crocuta (Erxleben, 1777); fl: Felis silvestris Schreber, 1775; gs: Galerella sanguinea (Rüppell, 1836), ia: Ichneumia albicauda (Cuvier, 1829); ge: Genetta genetta (Linnaeus, 1758); cau: Canis aureus Linnaeus, 1758; Canis adustus Sundevall, 1847; cm: Canis mesomelas Schreber, 1775; cs: Canis simensis Rüppell, 1840.

opencc-by-4.0Sep 2024View details →

Paleoecological Analysis in R

This is a public repo that can be used to learn how to conduct a paleoecological analysis in R. The project methods described here are formally reviewed and cited in the following paper. Bosch, JL., Álvarez-Manzaneda, I., Smol, J.P. et al. Blending census and paleolimnological data allows for tracking the establishment and growth of a major gannet colony over several centuries. Sci Rep 14, 20462 (2024). https://doi.org/10.1038/s41598-024-69860-z

opencc-zeroSep 2015View details →

FIG. 1. — A in Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography

FIG. 1. — A, Location map of Gabon and Cap Estréias; B, geological map of north Gabonese coastal basin; C, lithostratigraphy of the 'Cap Estérias' section. Geological map after Lanau (1985).

opencc-zeroSep 2015View details →

FIG. 4. — A, Q in Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography

FIG. 4. — A, Q, Granocardium? sp. 2; B, Acanthocardia cf. denticulata (Baily, 1855); C, Granocardium productum (Sowerby, 1832); D, Granocardium sp. 1; E, Protocardia? sp.; F, H, L, P, Agelasina plenodonta Riedel, 1932; G, J, Protocardia cf. pauli (Coquand, 1862); I, Aphrodina dutrugei (Coquand, 1862); K, Atrina laticostata (Stoliczka, 1871); M, Anofia? sp.; N, Plagiostoma pseudohoernesi (Riedel, 1932); O, Aphrodina gabonensis Dartevelle & Freneix, 1957. Scale bar: 2 cm.

opencc-zeroSep 2015View details →

FIG. 3 in Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography

FIG. 3. — Palaeobiogeographical distribution of bivalves fauna of 'Cap Estérias' in the Late Cretaceous. Geological map modified after Vrielynck & Bouysse (2003).

Fig. 7. A in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 7. A. Slab of juvenile specimens of Coenothyris. Note rare disarticulated ventral valve with small hinge teeth (arrow). Subunit 31, AMNH 46519. B. Cross section of Coenothyris Bed showing sparfilled articulated shells (bottom half) indicative of rapid burial that did not allow for the decay of soft tissues with subsequent displacement by sediment. The brachiopods just above the sparfilled zone (upper half) are mud filled, indicative of individuals that had died earlier and decayed to become infilled with sediment; approximately 25% of the shells were spar filled. Subunit 31, AMNH 46520. C. Cross section of Coenothyris Bed showing bivalve hash (composed mainly of the bivalve Myophoria) that served as a pavement for brachiopod spat. Subunit 31, AMNH 46521. Scale bar 5 2 cm.

Fig. 6. A, B in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 6. A, B. Slabs with normal populations of Coenothyris that range from ephebic to gerontic shells. A, Subunit 42, AMNH 46522; B, Subunit 42, NHM 1008. C. Cross section of Coenothyris horizon consisting of jumbled adult specimens similar in appearance to the Triassic German Muschelkalk. Subunit 42, AMNH 46522. Scale bar 5 2 cm.

Fig. 4 in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 4. Slab of juvenile specimens of Coenothyris that represents an obrution deposit. Note brachiopods in a horizontal to subhorizontal attitude relative to the sediment–water interface, many in dorsal side up position. Large bivalves under the brachiopods are Pleuromya. Subunit 31, AMNH 46518. See text for further discussion.

Fig. 1 in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 1. Location map of Precambrian–Oxfordian exposures in the Levant. 1, Precambrian; 2, Paleozoic–Triassic; 3, Jurassic; 4, Mount Hermon; 5, Alpine thrustfront; 6, 7, Neogene sinistral transform; I, Galilee High; II, Judean Embayment; III, Negev High; IV, Sinai Deep; with extension of Lower Oxfordian Majdal Shams shales (shaded area) and Jurassic isopachs (from Hirsch et al., 1998). ''Ramon'' signifies the Triassic Ramon Group, an anticlinorium that was breached through several phases of erosion, beginning in the Late Tertiary (Miocene–Pliocene), resulting in erosional cirques (Parnes, 1986). Tectonic movements since the Late Mesozoic, including reactivation of faults, resulted in the development of WSW–ENE to S–Ntrending reverse and thrust faults that today consist of several secondary monoclinal and domal buckles with an associated fault system (Zak, 1963).

Fig. 3 in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 3. Slab showing bivalve pavement colonized by Coenothyris oweni Feldman, subunit 31, AMNH 46517. Abbreviations: co, Coenothyris; pl, Pleuromya; mo, Modiolus; my, Myophoria; pa, Parallelodon. Note that this slab has relatively few brachiopods (compare with fig. 4). Scale bar 5 4 cm.

Fig. 5 in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 5. Slab of juvenile specimens of Coenothyris. Note the large Pleuromya, just offcenter, under which lie disarticulated Myphoria. Some shells are slightly exfoliated, but most are almost perfectly preserved. Subunit 31, AMNH 46524. See text for further discussion.

Fig. 2 in Paleoecology, Taphonomy, and Biogeography of a Coenothyris Community (Brachiopoda, Terebratulida) from the Triassic (Upper Anisian-Lower Ladinian) of Israel

Fig. 2. Generalized columnar section of the Triassic Saharonim Formation at Har Gevanim, Makhtesh Ramon, southern Israel. For detailed stratigraphy, see Druckman (1974b). Arrows represent occurrences of Coenothyris oweni Feldman at marked subunit intervals. Subunit designations are after Zak (1964) in Parnes (1975).