Spirocyclinidae

Spirocyclinidae Temporal range: Early Jurassic–Eocene PreꞒ Ꞓ O S D C P T J K Pg N
Anchispirocyclina henbesti
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Clade:	SAR
Phylum:	Retaria
Subphylum:	Foraminifera
Class:	Globothalamea
Order:	Loftusiida
Suborder:	Loftusiina
Superfamily:	Loftusioidea
Family:	†Spirocyclinidae Munier-Chalmas, 1887[1]
Genera[2]
†Martiguesia Maync, 1959 †Persiella Schlagintweit & Rashidi, 2017 †Postbroeckinella Sirel, 2012 †Pseudospirocyclina Hottinger, 1967 †Qataria Henson, 1948 †Ramirezella Cherchi & Schroeder, 1999 †Reissella Hamaoui, 1963 †Saudia Henson, 1948 †Sornayina Marie, 1960 Spirocyclina Munier-Chalmas, 1887 †Streptocyclammina Hottinger, 1967 †Thomasella Sirel, 1998 †Vania Sirel & Gündüz, 1985

Spirocyclinidae is a family of foraminifera included in the order Loftusiida.

Tests are variably discoidal, aggulitinated with calcareous or microgranular cement. Interiors are complex with chambers partially subdivided. Walls and septa are pierced with ramifying and anastomosing channels. The family presently includes the following genera; Spirocyclina, Anchispirocyclina, Haurania, Martiguesia, Pseudospirocyclina, Qataria, Reissella, Saudia, Sornayina, Spiraloconulus, Streptocyclammina, Timidonella, and Vania.

Previous the subfamily Spyrocylininae according to Loeblich and Tappan, 1964 in the Treatise on Invertebrate Paleontology which then included Spriocyclina, Anchispirocyclina, Orbitammiina, and Sornayina. Orbitammina has been moved to the textulariid Orbitopsellidae where it rests along with Orbitopsella, Cyclorbitopsella, and Labyrinthina.

Foraminifera, to which the Spirocyclinidae belong are characterized by reticulate pseudopoda,[3] and often produce intricate shells, or tests. They are referred to as Sarcodina in older texts, and more recently as Retaria.

References

1. Munier-Chalmas, E. (1887). Sur la Cyclolina et trois nouveaux genres de foraminifères des couches à rudistes: Cyclopsina, Dicyclina et Spirocyclina. Compte Rendu des Séances de la Société géologique de France. 4(7): 30–31. page(s): p. 31
2. Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Spirocyclinidae Munier-Chalmas, 1887 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=738663 Archived 2 November 2023 at the Wayback Machine on 19 June 2024
3. Short Treatise on Foraminiferology Archived 9 June 2017 at the Wayback Machine, Jean-Pierre Bellier, Robert Mathieu, & Bruno Granier

• Alfred R. Loeblich, jr & Helen Tappan, 1964, Sarcodunam chiefly "Thecamoebians" and Foraminiferida. Treatise on Invertebrate Paleontology, Part C, Protista 2. Geological Society of America and University of Kansas Press.
• "Spirocyclinidae". Archived from the original on 22 December 2015. Retrieved 18 December 2015. , Loeblich & Tappan 1988, Foraminiferal general and their classification, in GSI e-book.
• "Foraminifera morphological classification". Archived from the original on 20 November 2014. Retrieved 18 December 2015.