Habroichthys orientalis (Su, 1959)

By oilshale

• July 20, 2021

Taxonomy

Kingdom: Animalia
Phylum: Chordata Haeckel 1874
Class: Actinopteri Cope 1871
Order: Perleidiformes Berg 1937
Family: Habroichthyidae Gardiner 1967
Genus: Habroichthys
Species: Habroichthys orientalis
Author Citation (Su, 1959)

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Triassic
Sub Period: None
Epoch: Middle
International Age: Ladinian

Stratigraphy

Falang Formation

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 2 cm

Location

Dingxiao
Qianxinan Buyei and Miao Autonomous Prefecture
Guizhou (Province)
China

• falang formation
• guizhou
• habroichthys
• peltopleurus
• tff-oilshale-ch453
• triassic
• xingyi

Comments

Alternative combination: Peltopleurus orientalis Su, 1959.

The fish was originally described by Su in 1959 as Peltopleurus orientalis but recombined by Tintori et al. in 2016 as Habroichthys orientalis.

Taxonomy for Habroichthys orientalis according to Fossilworks.org.

Diagnosis according to Su, 1959 p. 205: “A Peltopleurus with rather slenderly fusiform body. Head rather small, its length is less than the maximum depth of the body and being about one 4,5th of the total length. External skull-bones smooth. Posterior part of maxilla somewhat triangular in shape. Operculum slightly larger than suboperculum. Preoperculum vertical. Anal fin larger and with longer base than that of the dorsal. Origin of the dorsal fin slightly in front of that of the anal fin. Flank with longitudinal row of greatly deepened scales, covering up to three fourths of depth of body.

Reconstruction of Habroichtys according to Griffith, 1977, p. 29:

Identified by oilshale using Su, 1959.

References:

Su, T, (1959): Triassic Fishes from Kueichow, South-West China. Vertebrata PalAsiatica 3(4):205-215.

Griffith, J. (1977): The Upper Triassic fishes from Polzberg bei Lunz, Austria. Zoological Journal of the Linnean Society, 60(1), 1–93. DOI: 10.1111/j.1096-3642.1977.tb00834.x

Lin, H.-Q., Sun, Z.-Y., Tintori, A., Lombardo, C., Jiang, D.- Y. & Hao, W.-C. (2011): A new species of Habroichthys Brough, 1939 (Actinopterygii; Peltopleuriformes) from the Pelsonian (Anisian, Middle Triassic) of Yunnan Province, South China. – Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 262 (1): 79-89. DOI: 10.1127/0077-7749/2011/0186.

Xu, Guang-Hui & Ma, Xin-Ying. (2016): A Middle Triassic stem-neopterygian fish from China sheds new light on the peltopleuriform phylogeny and internal fertilization. Science Bulletin. 61. 1766-1774. DOI: 10.1007/s11434-016-1189-5.

Tintori, A., Lombardo, C. and Kustatscher, E. (2016): The Pelsonian (Anisian, Middle Triassic) fish assemblage from Monte Prà della Vacca/Kühwiesenkopf (Braies Dolomites, Italy). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 282:181-200. DOI: 10.1127/njgpa/2016/0612.