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FIG. 5 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 5. Frontal view of heads of Drosophila narragansett (including seminole, new synonym) and the related species D. olmeca, n. sp. A. D. narragansett, female paralectotype (ASG 11); B. D. narragansett, male paralectotype (ASG 10); C. D. seminole, male holotype; D. D. olmeca, n. sp., male holotype (ASG 25).
FIG. 8 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 8. Oviscapts and spermathecae (lateral views) of species in the pseudoobscura subgroup, with a detail for D. persimilis. A. D. cuauhtemoci (ASG 39); B. D. lowei (ASG 26); C. D. maya (ASG 19); D. D. persimilis (ASG 37); E. D. pseudoobscura (ASG 34); F. D. zapoteca (ASG 21).
Figs. 4–6 in Two new species of Americanura (Collembola: Neanuridae) from Belize, Central America
Figs. 4–6. Americanura denisi sp. nov. 4, antennal dorsal chaetotaxy; 5, head and thorax chaetotaxy; 6, abdominal chaetotaxy.
FIG. 4 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 4. Frontal view of heads of representative species of the affinis subgroup. A. D. affinis, male. B. D. chibcha, n. sp., male holotype (ASG 05); C. D. tolteca, male (ASG 23); D. zapoteca, n. sp., male holotype (ASG 20). Note differences in development of the facial carina compared with faces in figure 3.
FIG. 7 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 7. Oviscapts and spermathecae (lateral views) of species in the affinis subgroup, with apical details for three species. A. D. affinis (ASG 28); B. D. athabasca (ASG 30); C. D. azteca (ASG 15); D. D. chibcha, n. sp. (ASG 17); E. D. dobzhanskii (ASG 33); F. D. narragansett (ASG 11); G. D. tolteca (ASG 24).
Figs. 1–3 in Two new species of Americanura (Collembola: Neanuridae) from Belize, Central America
Figs. 1–3. Americanura belicensis sp. nov. 1, antennal dorsal chaetotaxy; 2, head and thorax chaetotaxy; 3, abdominal chaetotaxy.
FIG. 1 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 1. Distribution map of species in the affinis subgroup. Distributions derived from Miller (1958), M. Miller et al. (2017), new records provided in the present paper, and more recent published reports. For distributions of species in the pseudoobscura group, see Dobzhansky and Epling (1944) and Heed and O'Grady (2000). Distribution boundaries are approximate, especially northernmost boundaries.
FIG. 2 in The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species
FIG. 2. Heads and thoraces (lateral view) of representative New World species of the obscura group (A–D), and a male midleg of D. cuauhtemoci (E). A. D. chibcha holotype, n. sp. (ASG 05); B. D. maya holotype. C. D. narragansett paralectotype male. D. D. seminole holotype. E. D. cuauhtemoci, male midleg (lateral view), paratype.
Fig. 9 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 9. Palaeogeographic map for the Tremadocian, with the location of latest Cambrian and earliest Tremadocian cephalopods (simplified from Cocks and Torsvik 2021). Abbreviations: AAC, Arctic-Alaska Chukotka; AN, Annamia; ATA, Armorican Terrane Assemblage; AV, Avalonia; BC, Boshchekul- Chingiz; CU, Cuyania; F, Florida; K, Kara; K-O, Kolyma-Omolon; NT, North Tien Shan (including Ch-Ili); PA, Palaeo-Adria; SK, Stepnyak, Selety, and Kokchetav; T, Tarim.
Fig. 3 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 3. Polished sections of samples from the lower Tremadocian (Ordovician) of Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina, showing the random orientation of the conchs of Ellesmeroceras humahuacaensis sp. nov. A. CEGH-UNC 27489, showing diagonal and transverse views of specimens. B. CEGH-UNC 27491. B1, several cephalopods tangentially cut, and fragments of shell material. B2, some almost transverse and oblique sections of cephalopods and a variety of undetermined shell material. B3, transverse and sagittal cuts of cephalopods and a variety of randomly oriented shell material. Scale bars 5 mm.
Fig. 2. A in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 2. A. Map of South America showing the main Paleozoic geological provinces of NW Argentina. B. Map of the study area (Jujuy Province, Argentina). The satellite image from Google Earth. QA, Quebrada de Arenal (-23.474677, -65.337646); QY, Quebrada de Yacoraite (-23.3321972, -65.457527). C. General view of the outcrop where the specimens were collected along the Quebrada de Arenal. This interval is characterized by sandstone interbedded with a general interval of siltstone. D. Regional biostratigraphy and lithostratigraphy correlated with the map intervals used. Modified and updated from Balseiro and Waisfeld (2013) and Vaucher et al. (2020). R. f. anglica, Rhabdinopora flabelliformis anglica. E. Stratigraphic section of the Quebrada de Arenal with the main facies assemblages (FA) that defined the section. Modified from Vaucher et al. (2020). The position where the samples were collected is indicated and belongs to Kainella merdionalis Trilobite Biozon. Til., Tilcara Member; R., Ruspaca Member; K. t., Kainella teiichii.
Fig. 1 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 1. Cambrian and early Tremadocian cephalopod records from different localities within the paleotropical belt (compiled from literature).Abbreviations: Fm., formation; Mb., Member.
Fig. 6 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 6. Ellesmeroceratid cephalopod Ellesmeroceras humahuacaensis sp. nov. (paratype CEGH-UNC 27495a) from the lower Tremadocian (Ordovician) of Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina. A1, external lateral (slightly oblique) view of the coated specimen; A2, longitudinal micro-CT section; A3, detail of the apical part and adjacent chambers viewed in the micro-CT scan.
Fig. 5 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 5. Ellesmeroceratid cephalopod Ellesmeroceras humahuacaensis sp. nov. from the lower Tremadocian (Ordovician) of Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina. A. CEGH-UNC 27494a in lateral view (coated with ammonium chloride A1, without coating A2), intermediate view between lateral and dorsal (A3). Note the sutural lateral lobes and the bent apical part of the conch. B. CEGH-UNC 27494c in dorsal view. Note the specimen is crossed by a fracture in the rock that was fixed. C. CEGH-UNC 27501 in dorsal view with the apical part rather deformed. D. CEGHUNC 27496a in dorsal view. E. CEGH-UNC 27496c in dorsal view, partially broken externally. F. CEGH-UNC 27491b in dorsal view, with shell wall. G. CEGH-UNC 27491c in external view, showing the growth lines. Scale bars 2 mm.
Fig. 4 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 4. Virtual reconstruction of the ellesmeroceratid cephalopod Ellesmeroceras humahuacaensis sp. nov. from the lower Tremadocian, Lower Ordovician of Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina based on composite data of the CT scan analysis of sample CEGH-UNC 27495 (three specimens), in dorsal (A1) and lateral (A2) views.
Fig. 7 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 7. Polished sections with different orientations of the ellesmeroceratid cephalopod Ellesmeroceras humahuacaensis sp. nov. from the lower Tremadocian (Ordovician) of Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina. A. CEGH-UNC 27489a, sagittal and somewhat oblique cut showing part of the siphuncle, the living chamber and the camerae. B. CEGH-UNC 27489b, sagittal and oblique cut of part of phragmocone showing septal necks. C. CEGH-UNC 27489c, sagittal and oblique cut of part of phragmocone broken apically showing cameral depth. D. CEGH-UNC 27489d, oblique cut of a fragment of conch with some broken septa and part of the siphuncle visible apically. E. CEGH-UNC 27489e, oblique cut of part of a conch in which the siphuncle is partially visible. F. CEGH-UNC 24784a, nearly longitudinal cut showing the siphuncle with septal necks and connecting rings. G. CEGH-UNC 24784b, detail of siphuncle in an oblique section. Scale bars 2 mm.
Fig. 8 in Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America
Fig. 8. Early Tremadocian (Ordovician) cephalopods from Quebrada de Arenal, Trancas section, Cordillera Oriental, Jujuy, Argentina. A. Ellesmeroceratid Ellesmeroceras sp. (CEGH-UNC 27496b) in oblique-lateral (A1) and oblique-ventral (A2) view of the uncoated specimen, and oblique-lateral view of the coated specimen (A3). Arrow points to the siphuncle. Note the sinuosity of the suture lines. B. Bassleroceratid Bassleroceras? sp. (CEGH-UNC 27497) in lateral view (B1, B2) showing exogastric curvature, low expansion rate, and external siphuncle, in apical view of the apicalmost septum preserved (B3, B4), showing the slightly compressed shape and the siphuncle position. Photographs (B1, B3) and schematic drawings (B2, B4) Scale bars: A, 5 mm, B1, B2, 2 mm; B3, B4, 1 mm. discarded order Bassleroceratida (Evans 2011: 22, and dis- 3.2 mm correspond to part of the living chamber and 4.1 cussion and references therein). We followed here the pro- mm to part of the phragmocone. It has an oral dorsoventral posal by Pohle et al. (2022), in which the family is located diameter of ca. 3 mm, an apical dorsoventral diameter of c within the subclass but not included in any particular or- 2.6 mm, and an apical lateral diameter of ca. 2.1 mm. The der, although Kröger and Pohle (2021) included the family cross-section is slightly compressed (0.8), and the siphuncle within Ellesmerocerida. See Evans (2011) for further discus- is rather large, ventral and marginal (Fig. 8B), with a diamesion about the family Bassleroceratidae. ter 34 % of that the conch diameter. The chambers are very short, ca. 0.3 mm long (Fig. 8B1). There are 10 chambers in Genus Bassleroceras Ulrich and Foerste, 1935 a length equivalent to the conch diameter, i.e., an RCL of 0.1. Type species: Orthoceras perseus Billings, 1865, from the St. Armand At 2.3°, the expansion rate is very low. CEGH-UNC 27480a Limestone, near Phillipsburg, Missisquoi County, Quebec, Canada. is a 7.4 mm long fragment of a slightly exogastric conch, of Tremadocian, Lower Ordovician. which 4 mm corresponds to part of the living chamber and Bassleroceras? sp. 3.4 mm to the phragmocone. Adapically, the dorsoventral diameter is ca. 3 mm, and the siphuncle is 1 mm wide, or Fig. 8B. 33% of that the conch diameter. The chambers are 0.3 mm Material.—CEGH-UNC 27497 and 27480a, from the Alfa- long, indicating an RCL of 0.08. The SCI is 0.16. rcito Member, Santa Rosita Formation, lower Tremadocian, Remarks.—The slightly exogastric curvature of these spec- Lower Ordovician, Quebrada de Arenal, Trancas section, imens, along with the very low expansion rate of the conch, Jujuy, Argentina. suggests that they can be assigned to the Basslerocertidae. Description.—CEGH-UNC 27497 is a 7.3 mm long frag- We would need more material in order to investigate interment of a slightly exogastrically curved conch, of which nal structures and determine more precisely the taxonomic
Fig. 4 in A new genus of chemosymbiotic vesicomyid bivalves from the Oligocene of western North America
Fig. 4. The vesicomyid bivalve Squiresica marincovichi (Kiel and Amano, 2010), from the Oligocene Kulthieth Formation, Alaska, USA. A. Rubber peel of holotype UCMP 555221 showing internal features including hinge dentition of the right valve. B. Paratype UCMP 555223, internal mold of a left valve, showing adductor muscle scars and small pallial sinus. C. Paratype UCMP 555224, an articulated specimen showing inflation, lunular incision, and escutcheon (C1) and external sculpture of right valve (C2). All images from Kiel and Amano (2010).
Fig. 3 in A new genus of chemosymbiotic vesicomyid bivalves from the Oligocene of western North America
Fig. 3. The vesicomyid bivalve Squiresica knapptonensis (Amano and Kiel, 2007) from the upper Oligocene part of the Lincoln Creek Formation at Knappton, along the Columbia River, western Washington, USA. A. Holotype USNM 534954, left valve showing external surface (A1) and hinge (A2). B. Paratype USNM 534956, left valve showing external surface (B1) and hinge (B2). C. USNM 534955, posterior part of a left valve showing external surface (C1) and the posterior end of the nymphal ridge (C2). All images (except C2) from Amano and Kiel (2007).
Fig. 2 in A new genus of chemosymbiotic vesicomyid bivalves from the Oligocene of western North America
Fig. 2. The vesicomyid bivalve Squiresica knapptonensis (Amano and Kiel, 2007) from the West Fork Satsop seep deposit, lower Oligocene, Lincoln Creek Formation, western Washington, USA. A. NRM PAL Mo 195149, articulated specimen with partially preserved shell, in lateral (A1, A3) and dorsal (A2) views. B. NRM PAL Mo 195150, left valve embedded in matrix, with partially preserved shell; B2, close-up showing pallial line and anterior adductor muscle scar (dotted line). C. NRM PAL Mo 195151, left valve embedded in matrix, with partially preserved shell (C2) and with posterior adductor muscle scar barely visible (dotted line in C1). D. NRM PAL Mo 195153, articulated specimen showing inflation and ligament. E. NRM PAL Mo 195152, small specimen with fully preserved shell, view on outer shell surface. F. NRM PAL Mo 195154, right valve embedded in matrix, with partially preserved shell, showing pallial line and anterior adductor muscle scar. G. NRM PAL Mo 195155, left valve with mostly preserved shell.
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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.