The Experts below are selected from a list of 46617 Experts worldwide ranked by ideXlab platform
Jaramillo, Carlos A. - One of the best experts on this subject based on the ideXlab platform.
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Primer cráneo fósil de chelus (Pleurodira: Chelidae, tortuga matamata): del mioceno temprano de Colombia
Palaeontologia Electronica, 2020Co-Authors: Cadena, Edwin A., Jaramillo, Carlos A.Abstract:"Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the roof elements including the parietal, pterygoid and portions of the squamosal, supraoccipital and the most dorsal quadrate. The skull is preserved in three dimensions, without evidence of crushing, allowing the observation of the internal braincase morphology using microcomputer tomography. Comparisons with the skull of the only Extant Species for the genus Chelus fimbriata (Matamata turtle) allow us to conclude that for the last 16 million years the morphology of the skull for this genus has remained almost unvarying, with only a slightly higher compression of the most anterior braincase exhibited by the Extant Species. Due to its fragmentary condition, a more refined identification beyond the genus (Chelus sp.) is not possible; however, the overall skull design indicates that the fossil Species could also have had the same ecological and dietary adaptations as its Extant relative.
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"El primer cráneo fósil de Chelus (Pleurodira: Chelidae; tortugas del género Matamata) del Mioceno temprano de Colombia"
'Coquina Press', 2020Co-Authors: Cadena Rueda, Edwin Alberto, Jaramillo, Carlos A.Abstract:"Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the roof elements including the parietal, pterygoid and portions of the squamosal, supraoccipital and the most dorsal quadrate. The skull is preserved in three dimensions, without evidence of crushing, allowing the observation of the internal braincase morphology using microcomputer tomography. Comparisons with the skull of the only Extant Species for the genus Chelus fimbriata (Matamata turtle) allow us to conclude that for the last 16 million years the morphology of the skull for this genus has remained almost unvarying, with only a slightly higher compression of the most anterior braincase exhibited by the Extant Species. Due to its fragmentary condition, a more refined identification beyond the genus (Chelus sp.) is not possible; however, the overall skull design indicates that the fossil Species could also have had the same ecological and dietary adaptations as its Extant relative.
Jose Albertino Rafael - One of the best experts on this subject based on the ideXlab platform.
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first known Extant Species of alavesia diptera atelestidae in the neotropical region alavesia leukoprosopa sp nov from the southern atlantic forest brazil
American Museum Novitates, 2020Co-Authors: Dalton De Souza Amorim, Paula Raile Riccardi, Jose Albertino RafaelAbstract:A first known Extant Neotropical Species of the atelestid genus Alavesia—Alavesia leukoprosopa, sp. nov.—is described from southeastern Brazil. The holotype (and only specimen so far) was collected with a Malaise trap in an area with strongly impacted semideciduous seasonal forest (dry forest) and open, entirely secondary vegetation. It was collected in mid spring, but has not been collected again so far. Alavesia leukoprosopa shares some derived features with the only two other Extant Species of the genus, known from the Brandberg Massif in Namibia, suggesting that all three Extant Species may compose together a small clade separate from the bulk of the Cretaceous diversity of Alavesia.
Bo Wang - One of the best experts on this subject based on the ideXlab platform.
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family kambaitipsychidae insecta trichoptera in mid cretaceous burmese amber
Cretaceous Research, 2020Co-Authors: Wilfried Wichard, Bo WangAbstract:Abstract The rare family Kambaitipsychidae (Trichoptera, Annulipalpia) is now reported from mid-Cretaceous Burmese amber with Kambaitipsyche malaisei sp. nov., distinguished by two-segmented inferior appendages in combination with five-segmented maxillary palps, the terminal segments both annulated and flexible, tibial spurs 3/4/4 and apical forks I and II sessile at crossvein s and the median fork at crossvein m-cu in fore- and hind wings. The two Extant Species of this family live in northeastern Burma and in Thailand. The Cretaceous fossils bridge a long geological time gap of about 100 million years and the related Extant Species are still endemic in Myanmar and Thailand nowadays.
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Family Kambaitipsychidae (Insecta, Trichoptera) in mid-Cretaceous Burmese amber
'Elsevier BV', 2020Co-Authors: Wichard Wilfried, Bo WangAbstract:The rare family Kambaitipsychidae (Trichoptera, Annulipalpia) is now reported from mid-Cretaceous Burmese amber with Kambaitipsyche malaisei sp. nov., distinguished by two-segmented inferior appendages in combination with five-segmented maxillary palps, the terminal segments both annulated and flexible, tibial spurs 3/4/4 and apical forks I and II sessile at crossvein s and the median fork at crossvein m-cu in fore- and hind wings. The two Extant Species of this family live in northeastern Burma and in Thailand. The Cretaceous fossils bridge a long geological time gap of about 100 million years and the related Extant Species are still endemic in Myanmar and Thailand nowadays. (C) 2019 Elsevier Ltd. All rights reserved
Dalton De Souza Amorim - One of the best experts on this subject based on the ideXlab platform.
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first known Extant Species of alavesia diptera atelestidae in the neotropical region alavesia leukoprosopa sp nov from the southern atlantic forest brazil
American Museum Novitates, 2020Co-Authors: Dalton De Souza Amorim, Paula Raile Riccardi, Jose Albertino RafaelAbstract:A first known Extant Neotropical Species of the atelestid genus Alavesia—Alavesia leukoprosopa, sp. nov.—is described from southeastern Brazil. The holotype (and only specimen so far) was collected with a Malaise trap in an area with strongly impacted semideciduous seasonal forest (dry forest) and open, entirely secondary vegetation. It was collected in mid spring, but has not been collected again so far. Alavesia leukoprosopa shares some derived features with the only two other Extant Species of the genus, known from the Brandberg Massif in Namibia, suggesting that all three Extant Species may compose together a small clade separate from the bulk of the Cretaceous diversity of Alavesia.
Cadena, Edwin A. - One of the best experts on this subject based on the ideXlab platform.
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Primer cráneo fósil de chelus (Pleurodira: Chelidae, tortuga matamata): del mioceno temprano de Colombia
Palaeontologia Electronica, 2020Co-Authors: Cadena, Edwin A., Jaramillo, Carlos A.Abstract:"Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the roof elements including the parietal, pterygoid and portions of the squamosal, supraoccipital and the most dorsal quadrate. The skull is preserved in three dimensions, without evidence of crushing, allowing the observation of the internal braincase morphology using microcomputer tomography. Comparisons with the skull of the only Extant Species for the genus Chelus fimbriata (Matamata turtle) allow us to conclude that for the last 16 million years the morphology of the skull for this genus has remained almost unvarying, with only a slightly higher compression of the most anterior braincase exhibited by the Extant Species. Due to its fragmentary condition, a more refined identification beyond the genus (Chelus sp.) is not possible; however, the overall skull design indicates that the fossil Species could also have had the same ecological and dietary adaptations as its Extant relative.
