Victoraspis longicornualis Carlsson & Blom, 2008

By oilshale

• October 3, 2020

Taxonomy

Kingdom: Animalia
Phylum: Chordata Haeckel 1874
Class: Osteostraci Lankester 1868
Order: Benneviaspidiformes Afanassieva 1991
Family: Scolenaspididae Afanassieva 1991
Genus: Victoraspis
Species: Victoraspis longicornualis
Author Citation Carlsson & Blom, 2008

Geological Time Scale

Eon: Phanerozoic
Era: Paleozoic
Period: Devonian
Sub Period: None
Epoch: Early
International Age: Pragian

Stratigraphy

Dniester Formation

Provenance

Acquired by: Purchase/Trade

Dimensions

Width: 13 cm

Location

Ustechko (Village)
Rajon Salischtschyky (County)
Ternopil Oblast (Province)
Ukraine

• devonian
• dniester formation
• pragian
• tff-oilshale-ch2398
• ukraine
• victoraspis

Comments

Taxonomy according to Carlsson et Blom, 2008.

Voichyshyn, 2011 p. 157:” Diagnosis (based on data of Carlsson and Blom 2008). — Medium sized scolenaspidians (L is about 65 mm). The width of the shield considerably exceeds its length (L/S about 0.5). The prepineal part of the shield is somewhat shorter than the postpineal one (B/C 0.8). Anterior margin of the shield somewhat narrows and has poorly expressed obtuse rostral corner. The cornual processes are very long, narrow, and bent caudally. The abdominal division of the shield is narrow and probably narrows backwards. The hypophyseal division of the nasohypophyseal opening is larger than the nasal one. Orbits are small (S/Os about 32) and oval. The pineal plate is well developed. The dorsal field is moderately narrow and, probably, relatively short (Ld/Sd is about 2.25). Lateral fields are rather narrow, reaching back not farther than to the proximal part of the cornual processes. The ornamentation of the dermal skeleton consists of tesserae covered by minute tubercles.”

Line drawing from Carlsson & Blom 2008, p. 320:

Identified by oilshale using Carlsson et Blom, 2008.
 

References:

Carlsson, A., Blom, H. (2008) A new scolenaspidid (Osteostraci, Vertebrata) from the Lower Devonian of Podolia, Ukraine. Paläont. Z. 82, 314–323. https://doi.org/10.1007/BF02988898

VOICHYSHYN, Victor (2011) THE EARLY DEVONIAN ARMOURED AGNATHANS OF PODOLIA, UKRAINE. PALAEONTOLOGIA POLONICA. No. 66, p. 1-211. https://doi.org/10.4202/pp.2011.66_001

Voichyshyn V.K. (2015) Devonian Fish Fauna. – Lviv,  310 p. (Scientific collections of the State Natural History Museum; Issue 5)