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1,301 results for “Early Cretaceous”
FIGURE 2 in A new trackway possibly made by a trotting theropod at the Las Hoyas fossil site (Early Cretaceous, Cuenca Province, Spain): Identification, bio-dynamics and palaeoenvironmental implications
FIGURE 2. Map of the Las Hoyas quarry (upper Barremian, Cuenca, Spain) with the position of the E-W excavated Squares, in color (modified from Buscalioni and Fregenal-Martínez, 2010). As shown in the box, the stratigraphic succession of the squares, and the associated richness in the number of tetrapod tracks.
Fig. 6 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 6. Hahnodontidae, gen. et sp. indet., right lower incisor, MNHN SA 102, in lateral (A), mesial (B), dorsal (C), and anterior (D) views. Scale bar 1 mm.
Fig. 1 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 1. Comparision of left lower m2in Paulchoffatioidea superfam. nov. A. Hahnodon taqueti Sigogneau−Russell, 1991a; redrawn from SigogneauRussell, 1991a: fig. 2c. B. Denisodon moroccensis gen. et sp. nov. C. Kuehneodon sp.; redrawn from Hahn and Hahn 1998: fig. 39b. D. Pinheirodon sp.; redrawn from Hahn and Hahn 1999b: fig. 29c.
Fig. 5 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 5. Comparison of upper right premolars with a shortened buccal row of cusps. A. Hahnodontidae, gen. et sp. indet., P3 or P4, posterior portion of tooth with the preserved posterior lingual cusps,?L3–5. B. Kielanodon hopsoni G. Hahn 1987, Paulchoffatiidae, P3. Redrawn from G. Hahn, 1987: text−fig. 8a. C. Pinheirodontidae, gen. et sp. indet., P4. Redrawn from Hahn and Hahn 1999b: fig. 59c. D. Eobaatar magnus Kielan−Jaworowska, Dashzeveg and Trofimov, 1987, Eobataridae, P5. Redrawn from KielanJaworowska et al. 1987: text.−fig. 3B.
Fig. 2 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 2. Hahnodon taqueti Sigogneau−Russell, 1991a, holotype, left m2, MNHN SA 33, in occlusal (A) and lingual (B) views. Drawn after Sigogneau−Russell 1991a: fig. 2c, a, respectively. Scale bar 1 mm.
Fig. 3 in New albanerpetontid amphibians from the Early Cretaceous of Morocco and Middle Jurassic of England
Fig. 3. Jaws of Anoualerpeton priscus sp. nov.; Middle Jurassic (late Bathonian), Kirtlington, England. A–C. Premaxillae. A. BMNH R.16336, holotype, left premaxilla, lacking dorsal part of pars dorsalis, lateral part of pars dentalis, and most of pars palatinum and preserving no intact teeth, in lingual (A1) and laterolingual (A2) views. B. BMNH R.16337, right premaxilla, lacking dorsal part of pars dorsalis and medial pars of pars palatinum and pars dentalis, in labial (B1) and lingual (B2) views. C. BMNH R.14157, right premaxilla, lacking dorsal part of pars dorsalis, ventral part of pars dentalis, and lateral end of maxillary process and preserving no intact teeth, in lingual (C1) and dorsal (C2) views, both with hair extending obliquely through palatal foramen, and in occlusal (C3) view. D. BMNH R.16338, left maxilla, missing part of pars dentalis below nasal process and about posterior one−fifth of bone, in labial (D1), lingual (D2), and dorsal (D3) views. E–H. Dentaries, all in lingual view. E. BMNH R.16344, left dentary, posteriorly incomplete ramus preserving about anterior one−quarter of bone. F. BMNH R.16354, right dentary, anteriorly and posteriorly incomplete ramus preserving posterior part of tooth row and anterior part of area for attachment of postdentary bones; G, BMNH R.16356, left dentary, anteriorly and posteriorly incomplete ramus preserving about posterior
Fig. 1 in New albanerpetontid amphibians from the Early Cretaceous of Morocco and Middle Jurassic of England
Fig. 1. Upper jaws and frontals of Anoualerpeton unicus sp. nov., type species; Lower Cretaceous (Berriasian), Anoual, Morocco. A, B. Premaxillae. A. MNHN.MCM 187, holotype, right premaxilla, lacking pars palatinum, in labial (A1) and lingual (A2) views. B. MNHN.MCM 188, left premaxilla, lacking dorsolateral part of pars dorsalis and vomerine and maxillary processes on pars palatinum, in labial (B1) and lingual (B2) views. C. MNHN.MCM 189, left maxilla, lacking about posterior one−fifth of bone, in labial (C1), lingual (C2), and dorsal (C3) views. D, E. Fused frontals. D. MNHN.MCM 190, nearly complete frontals, lacking distal end of left anterolateral process and posterior end of ventrolateral crests on both sides, entire specimen in dorsal (D1) and ventral (D2) views and closeup of anterior part in right lateral view (D3). E. MNHN.MCM 191, less nearly complete frontals, missing distal tip of internasal process, posterior end of left ventrolateral crest, and right posterolateral corner of bone and showing damage to median portion sustained during photography (cf., Fig. 2K), in dorsal view. White areas are broken surfaces and cross hatches are sand grains. Specimens at different scales.
Fig. 3 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 3. Denisodon moroccensis gen. et sp. nov., right m2, holotype, MNHN SA 97, in occlusal (A), buccal (B), lingual (C), anterior (D), and posterior (E) views; in A anterior is up. Scale bar 1 mm.
Fig. 5 in New albanerpetontid amphibians from the Early Cretaceous of Morocco and Middle Jurassic of England
Fig. 5. Strict consensus of three shortest trees, based on branch−and−bound search of 20 informative characters scored for 10 albanerpetontid taxa and a hypothetical "all zero" ancestor (see Appendix). Indices of support for less inclusive clades are reported in Table 1. Distribution of apomorphies for all 29 characters are depicted according to the more conservative and preferred DELTRAN character state optimization. Distribution of apomorphies within the gracile−snouted clade is based on one of the three shortest trees that has the same topology for this clade as the strict consensus tree. The ACCTRAN optimization differs in shifting four derived character states one node down towards the stem, as follows: 2(1) to the node for Anoualerpeton; 6(1) to the node for the robust−snouted clade; 22(2) to the node for the unnamed Tertiary clade; and 27(1) to the node for Celtedens + Albanerpeton. Symbols for apomorphies are: horizontal bar, synapomorphic or autapomorphic; circle, convergent. Tree statistics (uninformative characters excluded): tree length = 32 steps; CI = 0.750; HI = 0.250; and RI = 0.826.
Fig. 4 in New albanerpetontid amphibians from the Early Cretaceous of Morocco and Middle Jurassic of England
Fig. 4. Teeth and frontals of Anoualerpeton priscus sp. nov.; Middle Jurassic (late Bathonian), Kirtlington, England. A–E. Close ups of teeth, all in lingual view. A. BMNH R.16365, right maxilla, crown of tooth at second locus from broken anterior end of bone or, when tooth row was complete, about one−fifth of distance posteriorly along row. B. BMNH R.16356, left dentary, crowns of adjacent teeth at fourth (B1) and fifth (B2) loci from broken anterior end of bone or, when tooth row was complete, about three−fifths of distance posteriorly along row. C. BMNH R.16477, right dentary, crown of tooth at eighth locus from broken anterior end of bone or, when tooth row was complete, about one−half of distance posteriorly along row. D. BMNH R.16357, right maxilla, crowns of teeth at seventh (D1) and ninth (D2) loci from broken anterior end of bone or, when tooth row was complete, about one−third of distance posteriorly along row. E. BMNH R.16340, right dentary, row of five teeth and one empty tooth slot, extending from second to seventh loci from broken anterior end of bone or, when tooth row was complete, about three−fifths of distance posteriorly along row. F–I. Frontals. F. BMNH R.14158, anterior one−third of fused frontals, broken posteriorly between slots for receipt of prefrontals, in dorsal (F1) and right lateral (F2) views. G. BMNH R.16342, posterior two−thirds of fused frontals, broken anteriorly between slots for receipt of prefrontals and missing posterior end of ventrolateral crests on both sides, in dorsal (G1) and ventral (G2) views. H. BMNH R.14159, posterior part of small, fused frontals, broken anteriorly between slot for receipt of prefrontals on right side and midway along orbital margin on left side and missing left posterior corner, in dorsal (H1) and ventral (H2) views. I. BMNH R.14160, fragment of large, left frontal, preserving orbital margin, in ventral view. Osteological abbreviations: ap, anterolateral process; as, anterior slot; gr, groove; lfu, line of fusion; ps, posterior slot; vlc, ventrolateral crest. Specimens at different scales.
Fig. 4 in New multituberculate teeth from the Early Cretaceous of Morocco
Fig. 4. Hahnodontidae, gen. et sp. indet., left upper posterior premolar (P3 or P4), MNHN SA 152in occlusal (A), lingual (B), buccal (C), and posterior (D) views; in A anterior is up. Scale bar 1 mm.
Fig. 4 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 4. Gobiconodontidae indet. SEM micrographs of the distal cingulum and the enamel at the occlusal view of the broken cusp B of the upper molariform M3, 4 MPZ 2002/73 (Vallipón, Teruel, Spain, upper Barremian) in occlusal view, mesial side is down (A), detail of distal cingular cuspule (B), dentine layers at the anterior broken part of the tooth and enamel cover detailed in D (C), a detail of the enamel ultrastructure showing the radial type of the enamel prisms (D).
Fig. 3 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 3. Gobiconodontidae indet. Stereo SEM micrographs of the occlusal view of the upper molariform M3 or M4, MPZ 2002/73 (Vallipón, Teruel, Spain, upper Barremian). The mesial side is up.
Fig. 2 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 2. Gobiconodontidae indet. SEM micrographs of the upper molariform M3 or M4 MPZ 2002/73 (Vallipón, Teruel, Spain, upper Barremian) in lingual (A), occlusal (B), posterior (C), labial (D), and anterior (E) views. White line in A shows the distal cingulum and the direction of tooth wear made possibly by cusp a of the corresponding lower molariform. In B, mesial is up, the arrows on the left show the lingual cingulum, the arrow at the bottom the distal cingulum. In E the arrow shows the pulp cavity.
Fig. 1 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 1. Geographical and geological situation of the Vallipón site (upper Barremian, Teruel, Spain).
Fig. 6 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 6. Palaeogeography of the Hauterivian (sensu Smith et al., in Martill and Naish, 2001). Abbreviations: 1, Vallipón (upper Barremian, Spain); 2, Cloverly (Aptian–Albian, USA); 3, Shestakovo (Albian, Siberia); 4, Oshih (Hauterivian, Gobi, China), Ejinhoro (Barremian, Gobi, China), Khoboor (Albian, Gobi, Mongolia), Mazongshan (Albian, Gansu, China); 5, Lujiatum Beds, Yixian Formation (Hauterivian, Liaoning, China).
Fig. 5 in A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications
Fig. 5. Stratigraphical distribution of the gobiconodontid record. The age and order of the localities and formations were established basing on Ostrom (1970), Lucas and Estep (1998), Averianov and Skutchas (2000), and Zhou et al. (2003).
Fig. 8. Dalinghosaurus longidigitus. IVPP V14295 in The Early Cretaceous lizard Dalinghosaurus from China
Fig. 8. Dalinghosaurus longidigitus. IVPP V14295, Barremian, Sihetun, Beipiao City, China. Pelvic girdle, hind limbs and tail, mainly dorsal view.
Fig. 4. Dalinghosaurus longidigitus. IVPP V13281 in The Early Cretaceous lizard Dalinghosaurus from China
Fig. 4. Dalinghosaurus longidigitus. IVPP V13281, Barremian, Hejiaxin, China. Complete skeleton, dorsal view.
Fig. 1. Dalinghosaurus longidigitus. IVPP V13282 in The Early Cretaceous lizard Dalinghosaurus from China
Fig. 1. Dalinghosaurus longidigitus. IVPP V13282, Hauterivian–Barremian, Lujiatun, China. Skull in dorsal (A), palatal (B), left lateral (C), and right lateral (D) views. See Fig. 2 for explanation.
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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
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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.