Pteronisculus macropterus White, 1933

Taxonomy

Kingdom: Animalia
Phylum: Chordata Haeckel 1874
Class: Actinopteri Cope 1871
Order: incertae sedis
Family: Turseoidae Bock 1959
Genus: Pteronisculus
Species: Pteronisculus macropterus
Author Citation White, 1933

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Triassic
Sub Period: None
Epoch: Early
International Age: Dienerian

Stratigraphy

Beaufort Group
Sakamena Formation

Biostratigraphy

Lystrosaurus and Cynognathus Zone
Fish and Ammonite Horizon

Provenance

Acquired by: Purchase/Trade

Location

Ambodipo
Antsiranana Province
Diana Region
Madagascar

• dienerian
• madagascar
• pteronisculus macropterus
• sakamena formation
• tff-oilshale-ch1917
• triassik

Comments

Taxonomy from Romano et al., 2019.

In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common, and the somewhat rarer Pteronisculus macropterus.

Diagnosis from White 1933, p. 126: "Pteronisculus with 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 rugæ only."

Sketch from White 1933, p. 126:

References:

White, E. I. (1933): New Triassic palaeoniscids from Madagascar. Ann. a. Mag. Nat. Hist.(10) 11: 118-128; London
C. Romano, A. López-Arbarello, D. Ware, J. F. Jenks, and W. Brinkmann (2019). Marine Early Triassic Actinopterygii from the Candelaria Hills (Esmeralda County, Nevada, USA). Journal of Paleontology 93:971-1000