Desmophyllum excavatum ( Hagenow, 1839 )

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 85-86

Desmophyllum excavatum ( Hagenow, 1839)

Pl. 7, figs 3a–4b

*1839 Turbinolia excavata nob .: Hagenow, p. 289.

1850a Coelosmilia laxa: Milne Edwards & Haime , p. 52, pl. 8, figs 4a–c.

1852 Turbinolia excavata var. cylindrata: Quenstedt , p. 655, pl. 59, fig. 1.

v1852 Coelosmilia Sacheri Rss. : Reuss, p. 119, pl. 17, figs 2, 2a–b.

1852 Coelosmilia cupuliformis Rss. : Reuss, p. 119, pl. 17, figs 3–5.

1857 Coelosmilia laxa: Milne Edwards , vol. 2, p. 178.

1857 Coelosmilia ? excavata: Milne Edwards , vol. 2, p. 179.

1858–61 Coelosmilia laxa: de Fromentel , p. 102.

1858–61 Coelosmilia ? excavata: de Fromentel , p. 102.

1864 Coelosmilia ? excavata: de Fromentel , p. 287.

1866 Coelosmilia laxa M. Edw. u. Haime: Bölsche, p. 463.

v1866 Coelosmilia cupuliformis Reuss : Bölsche, p. 463.

v1866 Coelosmilia Sacheri Reuss : Bölsche, p. 464.

v1867 Coelosmilia cupuliformis Reuss : Bölsche, p. 27.

v1867 Coelosmilia Sacheri Reuss : Bölsche, p. 28.

1869 Trochosmilia (Coelosmilia) laxa: Duncan , vol. 2, p. 8, pl. 3, figs 11–17, pl. 4, figs 9–12.

1881 Turbinolia excavata var. cylindrata: Quenstedt , p. 839, pl. 176, fig. 29.

1881 Coelosmilia laxa: Quenstedt , p. 986, pl. 181, fig. 27.

1885 Turbinolia excavata: Quenstedt , p. 1011, pl. 82, fig.

v1902 Coelosmilia libyca n. sp.: Wanner, p. 102, pl. 14, figs 16–18.

1914 Coelosmilia cupuliformis Reuss 1852 : Felix, pars 7, p. 219.

1914 Coelosmilia laxa E. H. 1850: Felix, pars 7, p. 220 (older synonyms cited therein).

1914 Coelosmilia excavata Hagenow sp. 1839: Felix, pars 7, p. 221.

1914 Coelosmilia Sacheri Reuss 1852 : Felix, pars 7, p. 221.

1922 Coelosmilia excavata , v. Hagenow sp.: Nielsen, p. 222, pl. 2, figs 21–28, pl. 3, figs 8–8b (older synonyms cited therein).

1955 Coelosmilia laxa M.-Edw. e Haime: Rossi Ronchetti, p. 103, pl. 11, fig. 1.

v1969 Dungulia libyca (Wanner) : Hassam & Salama, p. 88, pl. 1, figs 4a–c (topotypes studied).

1982 Desmophyllum laxum (Edwards et Haime, 1851) : Kuzmicheva, p. 23, pl. 1, figs 2a–b.

1987 Desmophyllum laxum (Edwards et Haime, 1851) : Kuzmicheva, p. 128, pl. 22, figs 2–3.

non1987 Smilotrochus excavatus (Hagenov, 1839) : Kuzmicheva, p. 133, pl. 23, figs 2–4.

1996 Dungulia libyca (Wanner, 1902) : Schuster, Apendix list.

2000 Coelosmilia cupuliformis Reuss 1854 : Löser, p. 20.

2000 Desmophyllum laxa (Milne-Edwards & Haime 1851) : Löser, p. 28.

2000 Desmophyllum sacheri, Reuss 1854 : Löser, p. 28.

2000 Parasmilia excavata ( Hagenow 1839) : Löser, p. 60.

2002 Desmophyllum laxa (Milne Edwards & Haime, 1850) : Baron-Szabo, p. 168.

2005 Parasmilia excavata: Bernecker & Weidlich , 8ff.

Dimensions. d (min)= 9–34 mm; d (max)= 10–38 mm; d (min)/d (max)=0.80–1; s=24–96+s; h= 13–100 mm.

Description. Solitary, trochoid to subturbinate-subpatellate; circular in outline in juvenile stages, becoming slightly elliptical in later ontogenetical phases; costosepta thin, developed in 5 complete cycles in 6 systems in late adult stages; septa of the incomplete sixth cycle short, almost rudimentary; 3 complete cycles with the beginning of a fourth one developed in corallum of d= 9–13 mm; 4 complete cycles with or without the

Distribution. Senonian of Germany and Great Britain, Lower Maastrichtian of Germany (Rügen Island),

Maastrichtian of Denmark, (Fakse and Stevns Klint), Kazakhstan, Libya, Russia, Ukraine, and Turkmenistan,

Paleocene of Egypt. New Material. Danian of Egypt (Babel Jasmund), NRM-PZ, sample no.: Cn 47532.