Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Lacunolithus-Bown
Sister taxa: Bifidalithus, Bilapillus, Multipartis, Munarinus, Octolithus, Okkolithus, Ottavianus, Pharus, Ramsaya, Russellia, Saepiovirgata, Acuturris, Anfractus, Duocameratus, Lacunolithus-Bown, Metadoga, Nicholasia, Paulpearsonia, Petrobrasiella, Pseudoconus, Semihololithus, Stereorhabdus, Tanzanella, Thecatus, unidentified holococcoliths,

Daughter taxa: (blue => in age window 0-800Ma)


Citation: Lacunolithus Bown 1993
Rank: Genus
Type species: Lacunolithus tholiformis Bown, 1993
Notes & discussion: Lacunolithus Bown (1993) is a junior homonym of Lacunolithus Lyul'eva (1989) so either a replacement name is needed or the one described species should be recombined in another genus. [JRY]

Farinacci & Howe catalog pages: Lacunolithus-Bown *

Geological Range:
Last occurrence (top): within Toarcian Stage (174.15-182.70Ma, top in Toarcian stage). Data source: Total of range of species in this database
First occurrence (base): within Aalenian Stage (170.30-174.15Ma, base in Aalenian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Bown, P.R. (1993). New holococcoliths from the Toarcian-Aalenian (Jurassic) of northern Germany. Senckenbergiana lethaea, 73: 407-419. GS

Lyul'eva, S.A. (1989). New Miocene and Pliocene calcareous nannofossils of the Ukraine. Dopovidi Akad. Nauk Ukrainskoi RSR Ser. B. - Geol. Khim. ta Bioi. Nauki,, 1: 10-14. GS


Lacunolithus-Bown compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-5-2019

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