Publications
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1996. Reassessment of the morphology of Cheirolepis canadensis (Actinopterygii). Devonian Fishes and Plants of Miguasha, Quebec, Canada. :165–197.
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1978. About Bullockia New-Genus Trichomycterus-Mendozensis New-Species and Revision of the Family Trichomycteridae Pisces Siluriformes. Studies on Neotropical Fauna and Environment. 13(3-4):157-194. Abstract
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1987. Orthogonikleithrus-Leichi New-Genus New-Species Pisces Teleostei from the Late Jurassic of West Germany. Palaeontologische Zeitschrift. 61(3-4):309-320. Abstract
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2000. PHYLOGENETIC RELATIONSHIPS OF TELEOSTEI. PAST AND PRESENT RELACIONES FILOGENÉTICAS DE TELEOSTEI: PASADO Y PRESENTE. Estud. Oceanol. 19:19-51.
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1981. Varasichthys-Ariasi New-Genus New-Species from the Upper Jurassic of Chile Pisces Teleostei Varasichthyidae New Family. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie. 175(4-6):107-139. Abstract
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1998. Basal teleosts and teleostean phylogeny: response to C. Patterson. Copeia. (4):1109-1113.
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2001. A new teleost (Osteichthyes, Actinopterygii) from the Early Jurassic Posidonia shale of northern Germany. Fossil Record. 4(1):167-187.
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1991. The caudal skeleton of Jurassic teleosts; a phylogenetic analysis. Early vertebrates and related problems in evolutionary biology. :249–282.
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1999. Semionotiform fish from the Upper Jurassic of Tendaguru (Tanzania). Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaftliche Reihe. 2:135-153.
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1984. New catfishes of the genus Trichomycterus from the high Andes of South America (Pisces, Siluriformes) with remarks on distribution and ecology. Zoologische Jahrbuecher Abteilung fuer Systematik Oekologie und Geographie der Tiere. 111(4):493-520.
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1987. Jurassic fishes from Chile and critical comments. Bioestratigrafia de los Sistemas Regionales del Jurásico Cretácico en América del Sur"(W. Volkheimer and EA Musacchio, eds.), Voi. 1:257-286.
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1987. Description of the Primitive Family Diplomystidae Siluriformes Teleostei Pisces Morphology Taxonomy and Phylogenetic Implications. Bonner Zoologische Monographien. (24):1-120. Abstract
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1981. Caryological Evidences of Sexual Dimorphism in Orestias-Laucaensis - Pisces, Cyprino-Dontiformes. Archivos De Biologia Y Medicina Experimentales. 14(1):95-95.
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1982. A Review of Fresh Water Percoids from South America Pisces Osteichthyes Perciformes Percichthyidae and Perciliidae. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft. 540:5-52. Abstract
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1999. The monophyly of Teleostei and stem-group teleosts. Consensus and disagreements. :265–334.
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1980. Karyotypes of Trichomycterid Fishes (Siluriformes). Archivos De Biologia Y Medicina Experimentales. 13(1):137-137.
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Submitted. Temporal sequence and morphological variation in Jurassic fishes of southern Germany. :15-18.
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1985. Late Jurassic Teleosts Actinopterygii Pisces from Northern Chile and Cuba. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie. 189(1-3):29-61. Abstract
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1990. Development and Diversity of the Suspensorium of Trichomycterids and Comparison with Loricarioids Teleostei Siluriformes. Journal of Morphology. 205(2):193-218. Abstract
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1995. Sensory canals and related bones of tertiary siluriform crania from Bolivia and North America and comparison with recent forms. Journal of Vertebrate Paleontology. 15(3):482-505. Abstract
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1987. Anaethalion and similar teleosts (Actinopterygii, Pisces) from the Late Jurassic (Tithonian) of southern Germany and their relationships. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie. 200(1-3):1-44. Abstract
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1998. A new primitive acanthomorph fish from the Greenhorn Formation (Late Cretaceous) of Nebraska. Journal of Vertebrate Paleontology. 18(2):301-314. Abstract
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1983. Habitat Preferences of Siluriform Fishes of Chilean Continental Waters Families Diplomystidae and Trichomycteridae. Studies on Neotropical Fauna and Environment. 18(4):217-238. Abstract