Proetida

Telephina longicephala

Order Proetida / Superfamily Bathyuroidea / Family Telephinidae

Sandbian to Katian (Late Ordovician)Hubei, Hunan

Telephina longicephala — photo 1 — Photo 1 · birth was put with his mother in a wooden chest and thrown in the sea. The genus name may allude to the pelagic drifting lifestyle of Telephina. The Chinese name may derive from the Greek tele-, meaning far, and the large eyes of this genus. Holotype NIGP 16418 (Hubei; Lu Yanhao 1975) (Hubei; Peng Shanchi et al. 2001) Limestone specimen (Hunan; Zhou Zhiqiang et al. 2016)

Telephina longicephala — photo 2 — Photo 2 · birth was put with his mother in a wooden chest and thrown in the sea. The genus name may allude to the pelagic drifting lifestyle of Telephina. The Chinese name may derive from the Greek tele-, meaning far, and the large eyes of this genus. Holotype NIGP 16418 (Hubei; Lu Yanhao 1975) (Hubei; Peng Shanchi et al. 2001) Limestone specimen (Hunan; Zhou Zhiqiang et al. 2016)

Telephina longicephala — photo 3 — Photo 3 · birth was put with his mother in a wooden chest and thrown in the sea. The genus name may allude to the pelagic drifting lifestyle of Telephina. The Chinese name may derive from the Greek tele-, meaning far, and the large eyes of this genus. Holotype NIGP 16418 (Hubei; Lu Yanhao 1975) (Hubei; Peng Shanchi et al. 2001) Limestone specimen (Hunan; Zhou Zhiqiang et al. 2016)

Classification

Order Proetida / Superfamily Bathyuroidea / Family Telephinidae

Genus

Telephina Marek, 1952

Genus author

Marek L.

Genus etymology

The replaced original name Telephus comes from Telephus of Greek mythology, a man of misfortunes who at

Species

T. longicephala Lu, 1975

Species author

Lu Yanhao

Species etymology

long-, Latin, long; -cephala, head. Referring to the narrow, long glabella.

Age

Sandbian to Katian (Late Ordovician)

Distribution

Hubei, Hunan

Synonyms

Telephina (Telephina) longicephala; Telephina hexanodosa; Telephina (Telephops) vigilans; T. (Telephops) hubeiensis; Telephina (Telephina) jielingensis; Telephina (Telephops) brevica; T. (Telephops) sanxiaensis; Telephina (Telephops) yichangensis

Diagnosis

Cranidium subsquare or inverted-trapezoidal in outline; glabella with dense small nodes, slightly longer than wide, sides slightly converging forward, a pair of small cephalic spines anteriorly; fixigenae narrow and convex, subtriangular; two pairs of smooth muscle scars; occipital ring longitudinally long, a long sharp occipital spine extending backward-upward. Librigenae subsemi-elliptical, kidney-shaped eyes highly raised, composed of 43 rows of polygonal lenses, with a maximum of 18 lenses per row. Pygidium subtriangular, axis stout, of 2 rings and a terminal piece, each with a median node.