Ctenothrissa vexillifer (Pictet, 1850)

By oilshale

• July 10, 2022

Taxonomy

Kingdom: Animalia
Phylum: Chordata Haeckel 1874
Class: Actinopteri Cope 1871
Order: Ctenothrissiformes Berg 1937
Family: Ctenothrissidae
Genus: Ctenothrissa
Species: Ctenothrissa vexillifer
Author Citation (Pictet, 1850)

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Cretaceous
Sub Period: None
Epoch: Late
International Age: Cenomanian

Stratigraphy

Sannine Formation

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 9 cm

Location

Hakel
Byblos (Jbeil)
Mount Lebanon
Lebanon

• beryx
• cenomanian
• cretaceous
• ctenothrissa
• hakel
• sannine formation
• tff-oilshale-ch2340

Comments

The transcription of the Arabic terms and names is often ambiguous. In the literature the locality is called Hakel, Hâkel, Hackel, Haquil or Haquel.
Taxonomy from GBIF.org.
Alternative combination: Beryx vexillifer Pictet 1850.
Diagnosis for the genus Ctenothrissa from Woodward 1899, p. 490: "Head large; trunk deeply fusiform and laterally compressed, but ventral border of abdomen flattened. Maxilla robust and arched, with two large supramaxillary bones; mandible deep, a little prominent, and gape of mouth not extending behind the middle of the large orbit; minute teeth on the margin of the jaws. Preoperculum only slightly expanded; operculum and suboperculum, deep and narrow. Vertebrae from 30 to 40 in number, half being caudal. Pe]vic fins much enlarged and inserted far forwards; dorsal fin much deepened, occupying about half of the back; anal fin small; caudal fin deeply cleft. Scales pectinated, large and regularly arranged, none enlarged or thickened, and no dorsal or ventral ridge-scales ; lateral line conspicuous."

References:
Woodward, A. S., (1899): Note on some Cretaceous clupeoid fishes with pectinated scales (Ctenothrissa and Pseudoberyx). Annals and Magazine of Natural History, series 7 3:489-492.
Woodward, A. S., (1891–1901): Catalogue of Fossil Fishes in the British Museum, Parts 1–4. London: British Museum.