Diagnosis: Similar to Pseudolituotubella but with a long and almost planispiral initial stage. Occurrence: ... [details]

Diagnosis: Ammarchaediscinae with a dark wall dominant upon a lateral pseudofibrous layer. Test entirely ... [details]

Diagnosis: Test irregular probably endofaunal, without really individualized aperture nor proloculus. Wall ... [details]

Diagnosis: Similar to Dainella but with supplementary deposit in archs and not in pseudochomata, and sutures a ... [details]

Diagnosis: Test endothyroid followed by one or two uncoiled biseriate chambers. No supplementary deposit. Wall ... [details]

Diagnosis: We reproduce in totality the diagnosis of Mamet in Armstrong & Mamet (1974): “Test free subglobular. ... [details]

Bradyinoidea nautiloid, planispirally coiled and involute. Whorls and chambers are not numerous. Septa are short ... [details]

Diagnosis: Test discoidal. Proloculus followed by a undivided tube, streptospirally coiled in the early stage, ... [details]

Diagnosis: Initially streptospirally coiled, later planispiral, more or less evolute, pseudosepta relatively ... [details]

Diagnosis: Test subcylindrical, tapering, probably endofaunal, with pseudosepta, without really individualized ... [details]

Diagnosis: Globoendothyrinae similar to Endochernella, but differing by the presence of basal nodes and a spine in ... [details]

Diagnosis: Test with slight deviations of axis of coiling (endothyroid coiling). Chambers semiellipsoidal in shape ... [details]

Emended diagnosis: Small Mediocrinae with narrow pseudochomata, transitional between the loeblichioids and ... [details]

Diagnosis: Test planispiral evolute with mstinioid chambers. Wall thick, brownish with calcareous agglutinate. ... [details]

Diagnosis: Test entirely biseriate with moderately numerous pairs of chambers. Wall dark to brownish. Aperture ... [details]

Diagnosis: Tournayellinae medium sized, planispirally evolute with isolated low tubercles. Occurrence: Late ... [details]

Diagnosis: Similar to Laxoendothyra but differing by the bulbous extremities of the septa. No secondary deposits. ... [details]

Diagnosis: Test involute, nautiloid with frequent and strong deviations of axis. Chambers numerous, without ... [details]

Diagnosis: Test large, conical, uniseriate. Chambers inflated. Wall thick with a calcareous agglutinate. Aperture ... [details]

Diagnosis: Test large, planispiral, evolute, biumbilicate. Supplementary deposits as a terminal hook and low ... [details]

Diagnosis: Test involute, with deviations of axis. Chambers initially tournayellid secondary endothyroid. Secondary ... [details]

Diagnosis: Test endothyroid at the initial stage, latter uncoiled and biseriate. Wall microgranular. Simple ... [details]

Diagnosis: Test medium to large, nautiloid, involute, almost planispiral and shallowly biumbilicate. Periphery ... [details]

Diagnosis: Forschiinae with faint pseudosepta and aperture simple. Occurrence: Late Tournaisian (MFZ5-MFZ6 to lower ... [details]

Diagnosis: Ancestral form of Globoendothyra distinguished by a relatively small test, relatively compressed, and ... [details]

Diagnosis: Test small to medium-sized; involute to partly evolute, with rounded to carinate periphery. Umbilicus more ... [details]

Staffelloidea discoidal or lenticular. Pseudochomata relatively poorly developed. Rare axial filling. Wall simple, ... [details]

Diagnosis: Test initially shortly coiled, then biseriate. Chambers mstinioid in the coiled part. Wall brownish, ... [details]

Diagnosis: Tournayellinae small, with incipient pseudosepta. Occurrence: Frasnian-Early Visean. Western ... [details]

Diagnosis: Urbanellins involute to semi-evolute, densely coiled, characterized by a great number of chambers ... [details]

Diagnosis: Test planispiral, evolute. Proloculus followed by a undivided tubular chamber. Terminal cribrate ... [details]

Emended diagnosis: Test biserially coiled. Initially streptospiral followed by a whorl expanding rapidly. Because ... [details]

Diagnosis: Test involute, aligned to rarely sigmoidal, entirely covered by the pseudofibrous yellowish layer, lumen ... [details]

Diagnosis: Test subglobular, streptospirally coiled with pseudosepta faintly developed. Aperture terminal ... [details]

Diagnosis: Test initially endothyroidally coiled becoming uniserial. Initial chambers with various shapes: ... [details]

Diagnosis: Test coiled with chernyshinellid chambers, later uncoiled. Aperture terminal, basal in the coiled ... [details]

Diagnosis: Spinoendothyrinae with regular slow and moderate expansion of the spire and absence of spines in ... [details]

Diagnosis: Test similar to Bradyina but with a wall homogenous, dark, single and not alveolar. Occurrence: Early ... [details]

Diagnosis: Test small, undivided, planispirally coiled and involute. Semi-evolute to evolute in the last whorls. ... [details]

Diagnosis: Laxoendothyridae with a plane of coiling moderately oscillating. Chambers hemispherical with sutures ... [details]

Diagnosis: Endothyroid coiling. Pseudosepta absent to weak. Sutures absent to faint in the last whorl. No ... [details]

Diagnosis: Streptospirally initial part followed by a rectilinear, uncoiled part. Pseudosepta are present in the ... [details]

Diagnosis: Test endothyroid followed by uncoiled uniseriate chambers. Wall microgranular. Aperture simple, ... [details]

Diagnosis: Larger than Brunsiina and with constrictions of the wall replacing the pseudosepta. Occurrence: Late ... [details]

Diagnosis: Test involute, shallowly umbilicate and broadly rounded. Initial chambers septatournayellid and after ... [details]

Diagnosis: Archaediscinae at concavus stage with complete occlusion of the external volutions and the central ... [details]

Diagnosis: Test initially coiled with chernyshinellid chambers; and rapidly biseriate with numerous pairs of ... [details]

Diagnosis: Test large, planispiral involute, slightly deviated. Supplementary formations as strong nodes. Wall ... [details]

Diagnosis: “Test inflated lenticular to nautiloid, with rounded periphery, and large and shallow umbilici. ... [details]

Diagnosis: Earlandiidae with regular pseudosepta. Occurrence: Frasnian-Visean, cosmopolite. (Vachard and Hance in ... [details]

Diagnosis: Insolentithecidae with a bioeroded fundamental (first agglutinated test), followed by a mostly secreted ... [details]

Diagnosis: Test small, planispirally coiled, evolute and undivided. Wall microgranular. Simple terminal ... [details]

Diagnosis: Test attached, constituted of a huge streptospiral initial stage, followed by an uncoiled adult stage. ... [details]

Diagnosis: Lituotubellidae with strong pseudosepta, especially in the uncoiled terminal part. Aperture terminal ... [details]

Diagnosis: Test small, conical, trochospiral, with 3 to 6 chambers (generally 5) per whorl. Wall microgranular, ... [details]

Diagnosis: Medium sized, endothyroid skew coiled with the last chamber tending to be uncoiled. Supplementary ... [details]

Diagnosis: Test small to large, planispiral. Rapid expansion of the spire tending to a terminal uncoiling. Wall ... [details]

Diagnosis: Test small to medium-sized or rarely large, initially streptospiral and then planispiral and ... [details]

Diagnosis: Forschiinae with strong pseudosepta and aperture simple. Occurrence: Tournaisian-Visean, Urals, Donbass, ... [details]

Diagnosis: Test streptospirally coiled with pseudosepta relatively to well developed. Aperture terminal ... [details]

Diagnosis: Tournayellinae small to medium sized, planispirally evolute with pseudosepta well developed. Occurrence: ... [details]

Diagnosis: Test involute, discoidal. First whorls deviated with chernyshinellid chambers. Adult whorls oscillating ... [details]

Diagnosis: Endothyroid coiling. Chambers initially septatournayellid and then, endothyroid. A spine on the bottom ... [details]

Diagnosis: Spinoendothyrinae typically and entirely endothyroid in coiling and shape of chambers, with a spine in ... [details]

Diagnosis: Endothyroid coiling. Initial pseudosepta very short; terminal ones broad but short. No sutures. Only a ... [details]

Diagnosis: Coiling as in Plectogyranopsis. An anteriorly curved spine at the bottom of last chambers. Truncated ... [details]

Diagnosis: Tournayellinae medium sized, planispirally evolute, with slight initial deviation in Uvatournayella and ... [details]

Diagnosis: Test irregularly nautiloid, planispiral involute, with only one or two spires and only three to five ... [details]

Diagnosis: Endothyridae with nodes regularly arranged at the floor of the chambers. Wall dark, simple. Occurrence: ... [details]

Diagnosis: Test planispiral involute. Test entirely covered by the pseudofibrous yellowish layer, lumen ... [details]

Diagnosis: Forschiinae medium sized, planispirally evolute with early stage undivided, deviated to streptospiral ... [details]

Diagnosis: Tetrataxidae with chambers divided into chamberlets by numerous partitions, and simple wall. Occurrence: ... [details]

Emended diagnosis: Test planispiral involute, discoid to slightly inflated. Wall bilayered. The pseudofibrous plug ... [details]

Diagnosis: Small test. Transverse section with numerous quadratic chambers, without suture; axial section with ... [details]

Diagnosis: Test free, endothyroidally coiled (with relatively strong deviation of axis as each volution). Last ... [details]

Diagnosis: A dainellid with strong deviation of axis and relatively strong pseudochomata at each whorl. Periphery ... [details]