Agoultichthys chattertoni Murray & Wilson, 2008

By oilshale (edited)

• December 19, 2016

Taxonomy

Kingdom: Animalia
Phylum: Chordata
Class: Actinopteri Cope 1871
Order: Semionotiformes
Family: Macrosemiidae Thiollière 1858
Genus: Agoultichthys
Species: Agoultichthys chattertoni
Author Citation Murray & Wilson, 2008

Geological Time Scale

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

Stratigraphy

"Continental intercalaire" Group
Akrabou Formation

Provenance

Acquired by: Purchase/Trade

Location

Gara es Sbâa
Tafraoute
Tiznit Province
Morocco

• agoultichthys
• akrabou formation
• cretaceous
• gara es sbaa
• morocco
• tafraoute
• tff-oilshale-ch668

Comments

Taxonomy from Murray & Wilson 2008.

Diagnosis for the species from Murray & Wilson 2008, p. 431: "A macrosemiid fish differing from all others by the high number of scales laterally along the body (68, compared to 50 or less in the other genera) and the greater number of dorsal fin rays (about 47 total) than in any other macrosemiid genus (dorsal rays numbering fewer than 40). Dorsal fin separated into two lobes, as in Notagogus, Histionotus, Propterus and Macrosemiocotzus, but unlike the continuous dorsal fin of Enchelyolepis, Macrosemius, and Legnonotus. Squamation consisting of rhomboid scales with a smooth posterior border, unlike the rhomboid scales of Macrosemius, Propterus, Histionotus, Notagogus, Legnonotus, and Macrosemiocotzus, all of which have a pectinate posterior edge on the rhombic scales (Bartram 1977a; Tintori and Renesto 1983), and unlike the cycloid scales of Enchelyolepis (Bartram, 1977a); squamation complete on the body, unlike that of Macrosemius, Legnonotus, and Macrosemiocotzus, in which a strip beneath the dorsal fin is bare of scales (Gonzalez-Rodrıguez et al. 2004)."

Line drawing by Murray & Wilson 2008, p. 431:

Identified by oilshale using Murray & Wilson 2008.

References:

Bartram, A. W. H. 1977a. The Macrosemiidae, a Mesozoic family of holostean fishes. Bulletin of the British Museum (Natural History), Geology series, 29, 137–234.

Tintori A. & Renesto S. (1983) The Macrosemiidae (Pisces, Actinopterygii) from the Upper Triassic of Lombardy (N. Italy). Rivista Italiana di Paleontologia e Stratigrafia, 89, 209–222.

Gonzalez-Rodriguez, K. & Reynoso, V. H. (2004) A new Notagogus (Macrosemiidae, Halecostomi) species from the Albian Tlayua Quarry, Central Mexico. 265–278. In Arratia, G. and Tintori, A. (eds.). Mesozoic fishes 3 – systematics, paleoenvironments and biodiversity. Verlag Dr Friedrich Pfeil, München, Germany, 649 pp.

MURRAY, A. and WILSON, M. (2008) A NEW LATE CRETACEOUS MACROSEMIID FISH (NEOPTERYGII, HALECOSTOMI) FROM MOROCCO, WITH TEMPORAL AND GEOGRAPHICAL RANGE EXTENSIONS FOR THE FAMILY. Palaeontology, Vol. 52, Part 2, 2009, pp. 429–440.

Martill, D., Ibrahim, N. Brito, P., Baider, L., Zhouri, S.. Loveridge, R., Naish, D. and Hing, R. (2011) A new Plattenkalk Konservat Lagerstätte in the Upper Cretaceous of Gara Sbaa, south-eastern Morocco. Cretaceous Research 32 (2011) 433-446.

MURRAY, A., WILSON, M., GIBB, S. and CHATTERTON, B. (2013) Additions to the Late Cretaceous (Cenomanian/Turonian) actinopterygian fauna from the Agoult locality, Akrabou Formation, Morocco, and comments on the palaeoenvironment. Mesozoic Fishes 5 – Global Diversity and Evolution, G. Arratia, H.-P. Schultze & M. V. H. Wilson (eds.): pp. 525-548, 17 figs.