Actinoseris alloiteaui Beauvais & Zlatarski, 1966

Löser, Hannes, 2013, Revision of the family Asteroseriidae (Anthozoa, Scleractinia, Cretaceous), Geodiversitas 35 (1), pp. 21-29 : 24-26

Actinoseris alloiteaui Beauvais & Zlatarski, 1966

Actinoseris ? alloiteaui Beauvais & Zlatarski, 1966: 1171 , text-fig. 1, pl. 1, figs 1-10.

DIMENSIONS. — c 9 mm, s 48.

OCCURRENCE. — Late Barremian to Early Aptian: Pushevo, Bela river (Veliko Tarnovska oblast, Bulgaria).

REMARKS

The species is distinguished from the other two species by the lower number of septa.

Actinoseris cenomaniensis d’Orbigny, 1849 (Fig. 1A-C)

Actinoseris cenomanensis d’Orbigny, 1849: 12 (v); 1850: 180 (v). — Alloiteau 1957: 339, fig. 229, pl. 1, fig. 6 (v).

Cycloseris Cenomanensis – de Fromentel 1863: 372, pl. 49, fig. 2. —? Söhle 1897: 42, pl. 5, fig. 3.

? Asteroseris coronula – Tchechmedjeva 1995: 63, pl. 13, fig. 7.

DIMENSIONS. — MNHN. F. M 03501 , lectotype, c = 14 mm, s = 96 ; MNHN. F. A 49177, topotype, c = 12 mm, s = 96 .

OCCURRENCE. — (?) Early Cenomanian: Germany (Bayern) Ettal, Lichtenstättgraben; Bulgaria (Pleven) Novatchené.

Middle to Late Cenomanian: France (Sarthe) Le Mans (MNHN.F. M03501 , MNHN.F.A49177).

REMARKS

The lectotype is an unsectioned specimen that is not very well-preserved. It does not allow any destructive examination. Better diagnostic features were found in a thin section (MNHN.F.A49177) labelled as Actinoseris cenomaniensis , the specimen being very similar in size and septal pattern to the lectotype. The material described by Söhle (1897) could not be found in the collections of the BSPG.

Actinoseris escosurae ( Mallada, 1887) (Fig. 1D-H)

Cycloseris Escosurae Mallada, 1887: 167 ; 1890: pl. 61, figs 5-7. — Bataller 1947: 67, text-fig. — Russo et al. 1996: 200, figs 4-7, pls 1-4.

DIMENSIONS. — BSPG 2003 XX 4748, c = 11 mm, s = 96.

OCCURRENCE. — Early Aptian: Spain (Valencia, Alicante) Mun. Alicante, Loma de Guyón ; Mun. Morella, Morella ( BSPG 2003 XX 4748, 4749; Spain (Valencia, Castellón) Pont de Taules.

(?) Early Albian: Spain (Cataluña, Tarragona) Com. Baix Penedés, Marmellà, Can Xuec.

REMARKS

The material is well-preserved. The septal upper margin shows regular dentations that correspond to vertical lines of granulae on the septal lateral faces. The endotheca is absent. The wall is compact and with regular granulae at the surface (aboral face of the corallum).

The type material should be kept at the Instituto Tecnológico GeoMinero de España (Madrid, Spain), but this could not be verified. Dimensions and illustrations are based on topotypical material from the type locality. The species is distinguished from A. cenomaniensis by a much smaller columella.

FIG 1. — A -C, Actinoseris cenomaniensis d’Orbigny,1849 ; A, B, MNHN. F. M 03501 , lectotype, in oral ( A) and aboral ( B) views ; C, transverse thin section ( MNHN. F. A 49177) ; D - H, Actinoseris escosurae ( Mallada,1887) , BSPG 2003 XX 4749 in oral (D) and aboral ( E) views ; F, BSPG 2003 XX 4748 ,transverse thin section ; G, H, BSPG 2003 XX 4749 ,longitudinal thin sections ; G, lateral, H, central; I, Actinoseris neocomiensis (d’Orbigny, 1850) , BSPG 2003 XX 6058, oral view ; J, K, Asteroseris coronula (de Fromentel, 1863) ; J, transverse thin section ( MNHN. F. A 49178) ; K, BSPG 2003 XX 4640 , transverse thin section ; L, Asteroseris sp., MB K583-2 , transverse thin section ; M, Microseris hemisphaerica de Fromentel, 1867 , MNHN. F. M 03523 , syntype, transverse slab. Scale bars: 2 mm .

Russo et al. (1996) reported the autecology of the coral and assigned it with question to Cycloseris , which is ruled out here. Russo et al. (1996) did not consider members of the Asteroseriidae family as possible genera for Cycloseris escosurae . Cycloseris is an extant coral genus, just recently ( Gittenberger et al. 2006) taken out of synonymy with the very similar genus Fungia .

Actinoseris neocomiensis (d’Orbigny, 1850) (Fig. 1I)

Funginella neocomiensis d’Orbigny, 1850: 91 – Alloiteau 1957: 335, pl. 9, fig. 5 (v). —? Fricot et al. 1995: 32, text-fig. 36.

Cyclolites neocomiensis (v) – de Fromentel 1863: 355, pl. 57, fig. 2. —? Karakash 1907: 255, pl. 23, fig. 14. —? Kuzmicheva 1960a: 138, pl. 6, fig. 7; 1960b: 55, pl. 3, fig. 4.

DIMENSIONS. — MNHN.F.B14285, c = 15.5 mm, s = 96; BSPG 2003 XX 6058, c = 9.5 mm, s = 96.

OCCURRENCES. — Early Hauterivian: (?) France (Aube) Troyes, Vallières; France (Yonne) Fontenoy (MNHN.F.B14285) and Leugny (BSPG 2003 XX 6058); (?) Early Hauterivian: Ukraine (Krymskaya) Crimea Mts.

REMARKS

The available material has not been sectioned. Several specimens were lost during preparation and did not deliver well-preserved thin sections. The sample figured by de Fromentel (1863: pl. 57: 2) is considered the lectotype, which is supported by the existence of an old label that gives a number of the d’Orbigny collection. A well-preserved sample (here Fig. 1I) shows about 20 dentations on the septal upper margin of a septum of the first cycle and a corresponding number of vertical lines of granulae.