Category: Miliolida

Belongs within: Miliolida.Contains: Cornuspiridae. The Cornuspirida are a group of porcelaneous foraminiferans in which the free test has the proloculus followed by a single tubular, undivided chamber. The Hemigordiopsidae have the test streptospirally coiled in early stages. <==Cornuspirida [Cornuspiracea, Cornuspiridea, Cornuspirideae, Cornuspiroida, Cyclogyrina] |–HemigordiopsinaM13 | |–Shanitoidea [Shanitinidea]M13 | | |–Shanita Brönnimann, Whittaker & Zaninetti 1978YJ04 [ShanitidaeM13]… Continue reading Cornuspirida

Belongs within: Miliolina. The Alveolinidae are a group of porcelaneous, often large (up to 100 mm in length) Foraminifera known from the Lower Cretaceous to the present (Loeblich & Tappan 1964). However, a significant gap exists in the fossil record between Praealveolina and other Cretaceous genera, and the Cenozoic members of the family (BouDagher-Fadel 2008). Characters (BouDagher-Fadel… Continue reading Alveolinidae

Belongs within: Soritida. The Soritidae are a group of porcellaneous Foraminifera known from the Palaeocene to the present, characterised by a distinct pattern of chamber addition. Growth occurs by addition of numerous small chambers in arcuate or annular series, with apertures connecting adjacent chambers of successive series but not those within a single series (Loeblich… Continue reading Soritidae

Belongs within: Miliolina. The Tubinellinae are a group of miliolid Foraminifera known from the Middle Eocene to the present, characterised by a test that is uniserial at maturity. In the genus Tubinella, the vestigial milioline stage is restricted to a bulbous proloculus and a closely appressed second chamber that reverses direction of growth (Loeblich & Tappan 1964).… Continue reading Tubinellinae

Belongs within: Miliolina. The Massilinidae are a group of porcelaneous foraminiferans with a quinqueloculine (occasionally triloculine) test in early stages, becoming planispiral in later stages. In the subfamily Rectomassilininae, the last part of the test is uncoiled. MassilinidaeM13 |–Pseudomassilina Lacroix 1938LT64 [PseudomassilininaeM13] | |–*P. australis (Cushman 1932) [=Massilina australis]LT64 | `–P. subgranulataS05 |–RectomassilininaeM13 |–Massilina Schlumberger… Continue reading Massilinidae

Belongs within: Miliolina. The Fabulariinae are a group of miliolid Foraminifera known from the Upper Cretaceous to the present, in which the interior is complex, with chambers subdivided into chamberlets, and there are multiple apertures. Species of the type genus Fabularia have a thick wall with the surface ornamented by fine striae and punctations (Loeblich & Tappan… Continue reading Fabulariidae

Belongs within: Miliolina. Triloculina is a genus of miliolid Foraminifera known from the Jurassic to the present, in which only the final three chambers are visible externally at maturity. The aperture is simple and rounded with a bifid tooth (Loeblich & Tappan 1964). Characters (Loeblich & Tappan 1964): Test free, with chambers each one-half coil… Continue reading Triloculina

Belongs within: Sar.Contains: Miliamminidae, Sigmoilopsidae, Endothyroida, Cornuspirida, Nubeculariida, Miliolina. The Miliolida are a lineage of foraminiferans characterised by tubular chambers, at least in early stages, and agglutinated or porcelaneous walls. The Rzehakinoidea have agglutinated walls with organic cement or a thick outer agglutinated layer underlain by a thin calcareous layer (Kaminski 2014). Porcelaneous taxa are united in… Continue reading Miliolida