Results 131 to 140 of about 1,246 (174)
The relative withdrawal of GFAP-An essential component of brain evolution. [PDF]
Front NeuroanatKálmán M.
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Journal of Morphology, 2006
The feeding mechanism of gars (Ginglymodi : Lepisosteidae) is characterized by cranial elevation and lower jaw rotation but minimal cranial kinesis. Gar jaws have numerous, sharply pointed, elongate teeth for capture of evasive prey. Their mandibles range from relatively short to extremely long depending on the species.
Christian F Kammerer, Mark W Westneat
exaly +3 more sources
The feeding mechanism of gars (Ginglymodi : Lepisosteidae) is characterized by cranial elevation and lower jaw rotation but minimal cranial kinesis. Gar jaws have numerous, sharply pointed, elongate teeth for capture of evasive prey. Their mandibles range from relatively short to extremely long depending on the species.
Christian F Kammerer, Mark W Westneat
exaly +3 more sources
A Standardized Procedure for Internal Sex Identification in Lepisosteidae
North American Journal of Fisheries Management, 2001Abstract During population dynamic and reproductive biology research on three species of Lepisosteidae (i.e., alligator gar Lepisosteus spatula (also known as Atractosteus spatula), longnose gar L. osseus, and spotted gar L. oculatus), we determined that misidentification of sex through gross examination of the gonads was probable.
Allyse M. Ferrara, Elise R. Irwin
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Diversity of Mesozoic semionotiform fishes and the origin of gars (Lepisosteidae)
Die Naturwissenschaften, 2010Gars (Lepisosteidae) are ray-finned fishes with controversial relationships to other actinopterygian lineages. When fossil taxa are considered, gars are grouped with Mesozoic macrosemiids and 'semionotids' in the Semionotiformes, but the intra-relationships within this order are still elusive.
Lionel Cavin
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Journal of Vertebrate Paleontology, 1998
ABSTRACT Gars (Lepisosteidae, Actinopterygii) are reported from Madagascar for the first time, from exposures of the Upper Cretaceous (?Campanian) Maevarano Formation in the Mahajanga Basin, northwestern Madagascar. The material includes relatively common isolated scales, and vertebral centra, teeth, fin rays, and dermal cranial elements, all assigned ...
Michael D. Gottfried, David W. Krause
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ABSTRACT Gars (Lepisosteidae, Actinopterygii) are reported from Madagascar for the first time, from exposures of the Upper Cretaceous (?Campanian) Maevarano Formation in the Mahajanga Basin, northwestern Madagascar. The material includes relatively common isolated scales, and vertebral centra, teeth, fin rays, and dermal cranial elements, all assigned ...
Michael D. Gottfried, David W. Krause
exaly +2 more sources
Cretaceous Research, 2016
Abstract Herreraichthys coahuilaensis gen. and sp. nov. is described based on a single specimen collected in the Santonian marls strata of the “Los Temporales” quarry, Coahuila State, northern Mexico. This new species shows the diagnostic characters of the Family Lepisosteidae and tribe Lepisosteini, together with Lepisosteus and Atractosteus ...
Jesús Alvarado-Ortega
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Abstract Herreraichthys coahuilaensis gen. and sp. nov. is described based on a single specimen collected in the Santonian marls strata of the “Los Temporales” quarry, Coahuila State, northern Mexico. This new species shows the diagnostic characters of the Family Lepisosteidae and tribe Lepisosteini, together with Lepisosteus and Atractosteus ...
Jesús Alvarado-Ortega
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Comptes Rendus De L'Académie Des Sciences Earth & Planetary Sciences Série II, Sciences De La Terre Et Des Planètes =, 2000
Abstract Scales of the lepisosteid fish † Obaichthys decoratus and † O.? laevis, from the Lower Cretaceous of the Araripe Plateau (Northeast Brazil) resemble those of palaeoniscoid-type, in which a ganoine layer overlies a dentin layer located above a basal plate composed of lamellar bone.
Paulo M Brito +2 more
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Abstract Scales of the lepisosteid fish † Obaichthys decoratus and † O.? laevis, from the Lower Cretaceous of the Araripe Plateau (Northeast Brazil) resemble those of palaeoniscoid-type, in which a ganoine layer overlies a dentin layer located above a basal plate composed of lamellar bone.
Paulo M Brito +2 more
exaly +2 more sources
2023
Family Lepisosteidae Agassiz 1832 (Fig. 2E). Gars; Gaspares, Pejelagartos Description: Body elongate, cylindrical; up to 300 cm in length; nostrils at front of snout; snout long and conical, with large fangs in both jaws; scales ganoid, about 50–65 along the lateral line; dorsal fin far posterior, with few rays; abbreviated heterocercal tail (Robertson
Angulo, Arturo +7 more
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Family Lepisosteidae Agassiz 1832 (Fig. 2E). Gars; Gaspares, Pejelagartos Description: Body elongate, cylindrical; up to 300 cm in length; nostrils at front of snout; snout long and conical, with large fangs in both jaws; scales ganoid, about 50–65 along the lateral line; dorsal fin far posterior, with few rays; abbreviated heterocercal tail (Robertson
Angulo, Arturo +7 more
openaire +1 more source
First Lepisosteidae (Holostei: Ginglymodi) from the Late Cretaceous of Japan
Historical BiologyYoshitaka Yabumoto +2 more
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