Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Brilonella serpens

Gastropoda - Murchisoniina - Murchisoniidae

Taxonomy
Scoliostoma serpens was named by Kayser (1872). Its type specimen is Geologische-Palaontologische Museum of the Friedrich-Wilhelms-Universitat, a shell, and it is a 3D body fossil. Its type locality is Grube Grottenberg, near Brilon, which is in a Givetian lagoonal/restricted shallow subtidal grainstone/wackestone in the Brilon Massenkalk Formation of Germany.

It was recombined as Brilonella serpens by Kayser (1873), Knight (1941) and Wagner (2017).

Synonymy list
YearName and author
1872Scoliostoma serpens Kayser p. 674 figs. pl. 26 f. 4
1873Brilonella serpens Kayser p. 672
1941Brilonella serpens Knight pp. 58 - 59 figs. pl. 38 f. 4a-b
2017Brilonella serpens Wagner p. 5038

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassOrthogastropoda
orderMurchisoniina
superfamilyMurchisonioidea()
familyMurchisoniidae
genusBrilonella
speciesserpens()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
J. B. Knight 1941Small, trochiform gastropods with a slit and selenizone, the final whorl at gerontic stages turning sharply upward to lie along the spire; whorl profile at ephebic stages strongly rounded; sutures moderately deep; nucleus consisting of about 1ยง whorls smooth, simple, dextral, and seemingly without slit or sinus; base at ephebic stages seemingly minutely phaneromphalous; columellar and parietal lips at ephebic stages unknown; outer lip at ephebic stages with a broad shallow sinus culminating low on the whorl in a moderately deep slit which gives rise to a selenisone, at late neanic stages no slit but a broadly notched sinus only and at early neanic stages seemingly without either sinus or notch; the margin of the lip at ephebic stages leaving the upper suture in a radial direction quickly turns to a moderate backward obliquity, then passes across the upper whorl face with diminishing obliquity until close to the selenizone where it turns more strongly backward, below the selenizone passing across the base with moderate forward obliquity which diminishes only very slightly before the umbilicus is reached; selenizone developed only at ephebic and gerontic stages bordered by strong revolving lirae and with strong, sharp, regular lunulae; ornamentation strong, sharp, regular, transverse lirae with relatively wide, flat interspaces; shell moderately thick, its structure unknown. The holotype measures 8 mm. in height and 8 mm. in width excluding the aberrant final half whorl, pleural angle of 60 degrees.