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Fig. 32 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 32. Neurocranium of clearedandstained specimen of Taeniura lymma (AMNH 44079) in dorsal (A) and ventral (B) views. Note that the structure between the nasal capsules (se) is formed by chondrified sensory canals (probably at the junction of the prenasal and subrostral canals), and is not the rudimentary rostral base. Anterior to top.
Fig. 25 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 25. Denticles of †Asterotrygon maloneyi, n.gen., n.sp. A. Anterior snout region of paratype AMNH P 11557 in ventral view (specimen in fig. 3). B. Base of tail region of paratype AMNH P 11557 (ventral view). C. Tailbase area of USNM 2028 (female), in dorsal view (specimen in fig. 10B). D. Enlarged view of denticles at base of tail of USNM 2028 from panel C (also figured in Grande 1984:
Fig. 11 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 11. Juveniles (and/or neonates) and fetuses of †Asterotrygon maloneyi, n.gen., n.sp. All specimens are from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. A. NHM P 61244, 86 mm TL juvenile, sex not determined, appears to be dorsally exposed. B. Lateterm fetus preserved on left side of slab (adjacent to right side of disc) of paratype AMNH P 11557 (shown in fig. 3); much of the specimen is not preserved, such as pectoral and pelvic radials and pelvic girdle; radial elements of pectoral disc of AMNH P 11557 visible on right side. C. Lateterm fetus (some 80 mm TL, sex not determined) preserved on the right side of slab (to the left of posterior tail region) of paratype AMNH P 11557 (see fig. 3); note that some features that are missing in this fossil are present in counterpart (D) to the right. D. SMMP 83.25, lateterm fetus (counterpart of C). Anterior to top.
Fig. 17. Continued. B in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 17. Continued. B. Ventral view of same. Gill arches are somewhat diagramatically illustrated as in figure 16A.
Fig. 7 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 7. †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 14567, ca. 469 mm TL adult female), in dorsal view. Specimen is from freshwater F1 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Some left pectoral radials and anteriormost tip of disc are missing. Anterior to top.
Fig. 8 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 8. †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 14098, ca. 344 mm TL adult female) in dorsal view. Specimen is from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation (currently on exhibit in the FMNH). Some pectoral radials and anterior region of neurocranium missing, gill arches disarticulated. Anterior to top.
Fig. 9 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 9. †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 14097, ca. 402 mm TL adult female) in dorsal view. Specimen is from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Portions of neurocranium, jaws, visceral arches, pectoral basals and radials, and vertebrae are missing. Anterior to top.
Fig. 10 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 10. Preadult or small adult specimens of †Asterotrygon maloneyi, n.gen., n.sp. Both specimens are from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. A. FMNH PF 12990, approximately 243 mm TL female, in ventral view. Note that anterior, central and much of lateral disc region, and distal tip of tail are missing. B. USNM 2028, approximately 450 mm TL female, dorsally exposed. Visceral arches, pectoral basals, and pelvic girdle are dislocated in this specimen. Anterior to top.
Fig. 24 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 24. Dorsal fin and caudal stings of †Asterotrygon maloneyi, n.gen., n.sp. A. Paratype AMNH P 11557 (specimen in fig. 3). B. Paratype FMNH PF 14069 (specimen in fig. 5). C. FMNH PF 12914 (specimen in fig. 6). D. FMNH PF 14567 (specimen in fig. 7). E. Holotype FMNH PF 15166 (specimen in fig. 2; arrowhead showing poorly preserved dorsal fin). F. FMNH PF 15181 (specimen is tail only). Morphology of internal skeletal support of dorsal fin is more clearly preserved in panels B and F. Anterior to left.
Fig. 5 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 5. Relatively complete paratype of †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 14069, ca. 149 mm TL, presumably an immature female) in ventral view. Specimen is from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Arrowhead depicts wellexposed dorsal fin at origin of caudal stings. Anterior to top.
Fig. 4 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 4. Paratype of †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 12989, ca. 238 mm TL adult male) in ventral view. Specimen is from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Note elongated and developed claspers overlapping base of tail
Fig. 6 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 6. †Asterotrygon maloneyi, n.gen., n.sp. (FMNH PF 12914, ca. 205 mm TL, presumably adult female) in dorsal view. Specimen is from freshwater F1 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Anterior left side of disc is missing, along with slab; arrowhead indicates posterior right portion of pectoral radials and metapterygium that have been disarticulated and overlap disc. Anterior to top.
Fig. 3 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 3. Paratype of †Asterotrygon maloneyi, n. gen., n.sp. (AMNH P 11557, ca. 378 mm TL adult female) in ventral view. Specimen is from freshwater F2 deposits of the early Eocene Fossil Butte Member of the Green River Formation. Arrowheads indicate position of two small stingray specimens on limestone slab (these are inferred to be aborted lateterm fetuses of the larger female; see ''Remarks'' under species account for further comment). Anterior to top. This specimen was generously donated by
Fig. 22 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 22. Scapular region depicting scapulocoracoid and pectoral basals of †Asterotrygon maloneyi, n.gen., n.sp. A. FMNH PF 12989, ventrally exposed (paratype; entire specimen in fig. 4); note small dermal denticles distributed over entire surface. B. FMNH PF 14567, dorsally exposed (entire specimen in fig. 7); mesopterygium missing from left side. Anterior to top.
Fig. 33 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 33. Neurocranium and visceral arches of clearedandstained specimen of Urotrygon chilensis (FMNH 93737) in dorsal (A) and ventral (B) views (same specimen as in fig. 14). Synarcual has been removed, but gill arches remain in original position. Anterior to top.
Fig. 1. A in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 1. A. Map of southwestern Wyoming, northeastern Utah, and northwestern Colorado showing the geographical extent of the intermontane lakes during their middle or late early Eocene phase. B. Fossil Lake during the deposition of the Fossil Butte Member of the Green River Formation, during the late early Eocene, showing a few prominent F1 and F2 localities where fossil stingrays have been found. From Grande and Buchheim (1994).
Fig. 16 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 16. Skeleton of Potamotrygon sp., an extant freshwater stingray (Potamotrygonidae) from the Rio Taquari, Rio Paraguai basin, Brazil (MZUSP 25663, 336 mm TL, subadult male). This illustration is provided to serve as a comparative basis and guide for the anatomical description of the Green River stingrays. A. Entire skeleton. B. Detail of pelvic girdle (to scale) showing the elongated median prepelvic process, characteristic of potamotrygonids. Note that in panel A the gill arches and gill rays are sche
Fig. 28 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 28. †Heliobatis radians, AMNH P 19665, approximately 255 mm TL subadult (?) female, dorsally exposed (from F2 locality). Anterior to top.
Fig. 27 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 27. Teeth of †Asterotrygon maloneyi, n.gen., n.sp. Occlusal (dorsal) (A), basal (B), lingual (C), labial (D), and lateral (E, F) views. Panels A–E from FMNH PF 12989 (paratype; adult male); panel F from FMNH PF 14069 (paratype; female). Teeth are obliquely positioned in order to facilitate comparisons (magnified 60×).
Fig. 20 in Freshwater Stingrays Of The Green River Formation Of Wyoming (Early Eocene), With The Description Of A New Genus And Species And An Analysis Of Its Phylogenetic Relationships (Chondrichthyes: Myliobatiformes)
Fig. 20. Enlarged view of FMNH PF 15180 from figure 12, depicting extremely wellpreserved jaws, ventral gill arches, and other features of a juvenile specimen of †Asterotrygon maloneyi, n.gen., n.sp. Note preservation of basihyal cartilage, first pair of hypobranchials, and gill rays of ventral pseudohyoid bar preserved in original positions.
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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.