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Pteronisculus macropterus White, 1933
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By oilshale
In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common and the somewhat rarer Pteronisculus macropterus. According to White, P. macropterus is characterized by an "elongate-fusiform body; maximum depth rather less than length of head with opercular apparatus, and equal to one-quarter total length to base of caudal fin. length of pectoral fin exceeding distance between tip of snout and hinder margin of maxilla. Origin of dorsal fin above fortieth scale-row from pectoral girdle approximately. Scales in more than seventy vertical rows to base of caudal fin, and ornamented with oblique rugae only."
Lit.:
White, E. I. (1933): New Triassic palaeoniscids from Madagascar. Ann. a. Mag. Nat. Hist.(10) 11: 118-128; London
Taxonomy
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Palaeonisciformes
Family: Palaeoniscidae
Genus: Pteronisculus
Species: P. macropterus
Author Citation White, 1933
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Triassic
Epoch: Early
International Age: Dienerian
Stratigraphy
Beaufort Group
Sakamena Formation
Biostratigraphy
Lystrosaurus and Cynognathus Zone
Fish and Ammonite Horizon
Provenance
Acquired by: Purchase/Trade
Dimensions
Blank: 8cm
Location
Ambodipo
Antsiranana Province
Diana Region
Madagascar
Comments
In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common and the somewhat rarer Pteronisculus macropterus. According to White, P. macropterus is characterized by an "elongate-fusiform body; maximum depth rather less than length of head with opercular apparatus, and equal to one-quarter total length to base of caudal fin. length of pectoral fin exceeding distance between tip of snout and hinder margin of maxilla. Origin of dorsal fin above fortieth scale-row from pectoral girdle approximately. Scales in more than seventy vertical rows to base of caudal fin, and ornamented with oblique rugae only."
Lit.:
White, E. I. (1933): New Triassic palaeoniscids from Madagascar. Ann. a. Mag. Nat. Hist.(10) 11: 118-128; London
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