The Clavatulidae (Gastropoda, Conoidea) of the Miocene Paratethys Sea with considerations on fossil and extant Clavatulidae genera
Author
Harzhauser, Mathias
0000-0002-4471-6655
mathias.harzhauser@nhm-wien.ac.at
Author
Landau, Bernard
0000-0002-7768-8494
bernardmlandau@gmail.com
Author
Janssen, Ronald
0000-0002-4471-6655
mathias.harzhauser@nhm-wien.ac.at
text
Zootaxa
2022
2022-03-30
5123
1
1
172
http://dx.doi.org/10.11646/zootaxa.5123.1.1
journal article
10.11646/zootaxa.5123.1.1
1175-5326
6399827
036F6B4D-CDCC-4CD7-A914-9A1D8C7A097A
Perrona eleonorae
group
This group comprises
Perrona eleonorae
(
Hoernes & Auinger, 1891
)
,
Perrona lydiae
(
Hoernes & Auinger, 1891
)
and most probably
Perrona
?
herculea
(
Mayer-Eymar, 1886
)
. These species seem to be closely related based on their moderately large, solid, buccinoid shells with moderately gradate to conical spire, short siphonal canal and thickened fasciole. Species of the
Perrona descendens
group are smaller, fusiform rather than buccinoid and usually have shorter spires relative to the last whorl. The shape is unusual for modern
Perrona
species
and especially the weakly tubercular peribasal and perifasciolar cords of
P. eleonorae
are atypical for
Perrona
. Nevertheless,
P. eleonorae
and
P. lydiae
develop a typical
Perrona
sculpture on early teleoconch whorls with comma-shaped riblets between two smooth adsutural cords. Therefore, we place this group in
Perrona
and interpret it as convergent late teleoconch whorl morphology with
Granulatocincta
nov. gen.
, which however, differs clearly in its tripartite early teleoconch whorls and the beaded sculpture.