A revision of the Neogene Conidae and Conorbidae (Gastropoda) of the Paratethys Sea
Author
Harzhauser, Mathias
Author
Landau, Bernard
text
Zootaxa
2016
4210
1
1
178
journal article
37280
10.11646/zootaxa.4210.1.1
e782e07d-76b7-4e9b-ba34-ed3286254ec6
1175-5326
252966
D39416B8-CF85-440B-84C2-D4380BECC4E3
Conilithes brezinae
(
Hoernes & Auinger, 1879
)
Figs 3
F, 5D1–D3, 5E1–E3, 5F1–F3, 5G1–G3, 5H1
Conus Dujardini
Desh.
—Hörnes 1851: 40 (
partim
), pl. 5, figs 8a–f [
non
Conus dujardini
Deshayes, 1845
].
[
Leptoconus
] [
Conus
]
Brezinae
n. f.—
Hoernes 1878a
: 195
(nomen nudum).
Conus
(
Leptoconus
)
Brezinae
nov. form.—
Hoernes & Auinger 1879
: 36
.
Conus Brezinae
R. Hoern.
i Auing.—Friedberg 1911: 51, pl. 2, figs 13–14.
Conus
(
Conospira
)
dujardini
Desh.
—Strausz 1954: 113, pl. 7, fig. 144.
Conus
(
Conospira
)
dujardini brezinae
H. et Au.—Strausz 1954: 113, pl. 4, fig. 80.
Conus
(
Conuspira
)
brezinae
R. Hörnes
und
Auinger, 1879
—Moisescu 1955: 161, pl. 14, figs 9, 12–14.
Conus
(
Conolithus
)
dujardini
var.
brezinae
(
Hoernes und Auinger, 1879
)—Kojumdgieva in
Kojumdgieva & Strachimirov 1960
: 209
, pl. 49, fig. 7.
Conus
(
Conolithus
)
dujardini brezinae
Hoernes & Auinger—Strausz 1962: 151
, pl. 22, fig. 16, pl. 43, figs 3–5, pl. 62, figs 8–9.
Conus
(
Conolithus
)
dujardini brezinae
Hoernes & Auinger, 1879
—
Strausz 1966
: 452
, pl. 22, fig. 16, pl. 43, figs 3–5, pl. 62, figs 8–9.
Conus
(
Conolithus
)
dujardini
Deshayes 1845
—
Hinculov 1968
: 151
, pl. 38, figs 6a–7 [non
Conus dujardini
Deshayes, 1845
].
Conus
(
Conospira
)
dujardini brezinae
Hoernes & Auinger 1879
—Bohn-Havas 1973: 1067, pl. 8, fig. 6.
Conus
(
Conolithus
)
dujardini
Deshayes 1845
—
Krach 1981
: 75
(partim), pl. 21, figs 10, 14, 20, 23 [non
Conus dujardini
Deshayes, 1845
].
Conus
(
Conolithus
)
dujardini brezinae
R.
Hoernes et M. Auinger, 1879
—
Švagrovský 1981
: 154
, pl. 48, fig. 8.
Conus
(
Conolithus
)
dujardini
Deshayes 1845
—
Švagrovský 1982
: 404
, pl. 5, fig. 5.
Conus
(
Conolithus
)
dujardini brezinae
Hoernes & Auinger—Atanacković 1985: 179
, pl. 40, figs 1–2.
Conus dujardini brezinae
Hoernes et Auinger—Ionesi &
Nicorici 1994
: 62
, pl. 5, figs. 13–15.
Conus
(
Conolithus
)
dujardini
Deshayes, 1845
—
Bałuk 1997
: 55
, pl. 19, figs 1–4 [non
Conus dujardini
Deshayes, 1845
].
Conus
(
Conolithus
)
brezinae
Hoernes & Auinger—Schultz 1998: 72
, pl. 29, fig. 10.
Conus
(
Conolithus
)
dujardini
Deshayes, 1845
—
Mikuž 2009
: 35
, pl. 12, figs 159–161 [non
Conus dujardini
Deshayes, 1845
].
Conilithes canaliculatus
(
Brocchi, 1814
)
—
Kovács & Vicián 2013
: 91
, figs 152–156 [non
Conus canaliculatus
Brocchi, 1814
].
Conilithes dujardini
(
Deshayes, 1845
)
—
Janssen
et al
. 2014
: 87
, fig. 18 [non
Conus dujardini
Deshayes, 1845
].
non
Conus
(
Conolithus
)
brezinae
Hoernes et Auinger, 1879
—
Hinculov 1968
: 151
, pl. 38, figs 5a–b [= unidentified but not
C. brezinae
].
non
Conus
(
Conospira
)
brezinae
Hoernes
et Auinger—Csepreghy-Meznerics 1972: 33, pl. 17, figs 15–17 [=
Conilithes exaltatus
(
Eichwald, 1830
)
].
Type
material.
Syntype
NHMW
1999
z0077/0023a, illustrated in
Hörnes
(1851, pl. 5, fig. 8a)
;
syntype
NHMW
1999
z0077/0023b, illustrated in
Hörnes
(1851, pl. 5, fig. 8b)
;
syntype
NHMW
1999
z0077/0023c, illustrated
Hörnes
(1851, pl. 5, fig. 8c)
;
syntype
NHMW
1999
z0077/0023d, illustrated in
Hörnes
(1851, pl. 5, fig. 8d)
;
syntype
NHMW
1999
z0077/0023e, illustrated in
Hörnes
(1851, pl. 5, fig. 8e), all
Steinebrunn
(
Austria
); middle
Miocene
,
Badenian
(late
Langhian
).
Studied material.
Syntypes and 37 spec. NHMW 1846/0037/0040, 25 spec.
NHMW
1846
/0037/0039,
Gainfarn
or
Enzesfeld
(
Austria
)
; 12 spec. NHMW 1853/0010/0008, 9 spec.
NHMW
A 1614,
Enzesfeld
(
Austria
), including specimen illustrated in
Schultz
(1998 pl. 29, fig. 10)
; 2 spec
. NHMW 1997z0178/1848, 3 spec. NHMW 1985/0083/0159a,>100 spec.
NHM
2013
/0479/
1583-1602
,
Gainfarn
(
Austria
)
; 10 spec. NHMW A451, 29 spec.
NHMW
1860
/0001/0076,
Steinebrunn
(
Austria
)
;
2 spec.
NHMW
2012
/0213/0104,
Pfaffstätten
(
Austria
)
;
11 spec.
NHMW
A994,
Guntersdorf
(
Austria
)
;
16 spec.
NHMW
A 995,
Grund
(
Austria
)
;
24 spec.
NHMW
1854
/0035/ 0 0 54,
Lăpugiu de Sus
(
Romania
)
.
Illustrated material.
Figs 5
D1–D3: Steinebrunn (Austria), SL:
37.9 mm
, MD:
15.9 mm
,
syntype
NHMW
1999
z0077/0023a, illustrated in
Hörnes
(1851, pl. 5, fig. 8a);
Figs
5
E1–E3:
Steinebrunn
(
Austria
), SL:
36.9 mm
, MD:
14.5 mm
,
syntype
NHMW
1999
z0077/0023b, illustrated in
Hörnes
(1851, pl. 5, fig. 8b);
Figs
5
F1–F3:
Steinebrunn
(
Austria
), SL:
35.1 mm
, MD:
14.1 mm
,
syntype
NHMW
1999
z0077/0023c, illustrated in
Hörnes
(1851, pl. 5, fig. 8c);
Figs
5
G1–G3:
Gainfarn
or
Enzesfeld
(
Austria
): SL:
37.3 mm
, MD:
17.8 mm
,
NHMW
1846
/ 0037/0039;
Fig. 5
H1:
Gainfarn
or
Enzesfeld
(
Austria
)
;
SL:
36.2 mm
, MD:
16.1 mm
,
NHMW
1846
/0037/0039;
Fig. 3
F:
Steinebrunn
(
Austria
), SL:
26.6 mm
, MD:
12.2 mm
,
syntype
NHMW
1999
z0077/0023e, illustrated in
Hörnes
(1851, pl. 5, fig. 8e).
Revised description.
Moderately small to medium sized, biconical shells, consisting of 10–12 teleoconch whorls. Protoconch high, conical and multispiral. Very high conical spire; early spire whorls with weakly tuberculate angulation just above suture; nodes become obsolete on 3rd to 4th spire whorl grading into a prominent carina, which successively migrates towards the lower suture abapically. Sutural ramp flat to slightly concave with prominent, raised growth lines. Subsutural flexure deep, strongly curved, moderately asymmetrical. Faint spiral threads appear on the sutural ramp of the early spire whorls in a few specimens. Last whorl slightly allometric with wider and less steep sutural ramp; weakly ventricose with slight constriction at base; siphonal canal very short and moderately wide. Aperture broadening slightly abapically, with thin, prosocyrt outer lip. Surface smooth, except for deep, broad spiral grooves on base, confined to the lower quarter of last whorl. Colour pattern in UV light consisting of irregularly spaced thin spiral lines on last whorl intercalated by 2–3 spirals of delicate dots. These stripes appear on the sutural ramp parallel to the subsutural flexure. Beads on spire coincide with short prosocyrt dots.
Shell measurements and ratios.
n = 25: largest specimen: SL:
37.9 mm
, MD:
17.8 mm
, mean SL:
32.8 mm
(σ = 2.9), mean MD: 14.3 (σ = 1.5), spire angle: µ = 58.4° (σ = 5.2°), last whorl angle: µ = 32.7° (σ = 2.4°), LW: µ = 2.3 (σ = 0.13), RD: µ = 0.63 (σ = 0.03), PMD: µ = 0.9 (σ = 0.03), RSH: µ = 0.31 (σ = 0.03).
Discussion.
There is considerable confusion about the taxonomic status of
Conus exaltatus
Eichwald, 1830
,
Conus dujardini
Deshayes, 1845
and
Conus brezinae
Hoernes & Auinger, 1879
and in the literature all combinations of synonymizations can be found. The validity of
C. brezinae
as distinct species was especially doubted by many authors (e.g.
Bałuk 1997
;
Landau
et al
. 2013
;
Kovács & Vicián 2013
). After a re-examination of the
type
material we reject this decision. A principal components analysis (PCA) of the shell ratios (
Fig. 7A
) and measurements (
Fig. 7B
) reveals a very clear separation of
Conilithes brezinae
from
C. exaltatus
.
Despite some variability in slenderness and spire height,
C. brezinae
is characterized by its marked shoulder and somewhat broader sutural ramp of the last whorl, the absence of striae or nodes on late spire whorls and the spiral grooves confined to the base.
Conilithes brezinae
further differs from
C. exaltatus
in the lower position of the carina, which is also less sharp, the lower height of the spire whorls, the shorter last whorl, which lacks a pronounced basal constriction, and the lack of the punctate spiral grooves.
With respect to this re-definition, the Serravallian specimens from the Turkish
Karaman
Basin, described by us (
Landau
et al
. 2013
) as
Conilithes dujardini
[which we consider to be a subjective junior synonym of
Conilithes exaltatus
(
Eichwald, 1830
)
, see below], should be treated as
C. brezinae
.
Kovács & Vicián (2013)
proposed to synonymize
Conilithes brezinae
with the Pliocene
C. canaliculatus
(
Brocchi, 1814
)
. We do not accept this conclusion because
C. canaliculatus
has a more ventricose last whorl, its maximum diameter is below the shoulder, the sutural ramp of the last whorl is narrower and the spiral grooves cover a larger part of the base (see
Malatesta 1974
;
Pinna & Spezia 1978
;
Chirli 1997
).
Paleoenvironment.
The occurrences in the
Vienna
Basin represent shallow water settings with sea grass meadows (e.g. Gainfarn;
Zuschin
et al
. 2007
). This ecological preference is an additional argument for a separation from
C. exaltatus
, which is typically found in offshore clays.
Distribution in Paratethys.
Badenian (middle Miocene):
Vienna
Basin:
Gainfarn, Enzesfeld, Steinebrunn, Grinzing, Pötzleinsdorf, Bad Vöslau, Niederleis (
Austria
), Mikulov, Kienberk, Hrušovany, Sedlec (
Czech Republic
), Devínska Nová Ves (
Slovakia
) (
Hoernes & Auinger 1879
;
Sieber 1958b
;
Švagrovský 1981
);
Alpine- Carpathian Foredeep
: Grund, Windpassing (
Austria
), Lysice, (
Czech Republic
) (
Hoernes & Auinger 1879
;
Sieber 1947
,
1949
); Korytnica, Babice, Błonie, Hołubica, Podhorce, Zukowce, Biłka,
Tarnopol
(Friedberg 1911;
Bałuk 1997
);
Oberpullendorf Basin
: Ritzing (
Austria
) (
Hoernes & Auinger 1879
:
Sieber 1956
);
Bükk Mountains
: Borsodbóta (
Hungary
);
Pannonian Basin
: Várpalota, Balaton, Diósd, Hont, Letkés, Mátraverebély, Pécsszabolcs, Szob,
Budapest
: Illés street Szob, Hidas, (
Hungary
) (Csepreghy-Meznerics 1954;
Strausz 1966
;
Kovács & Vicián 2013
);
Styrian Basin
: Pöls (
Austria
) (
Hoernes & Auinger 1879
);
Transylvanian Basin:
Lăpugiu de Sus, Coşteiu de Sus (
Romania
);
Caransebeş-Mehadia Basin:
Valea Bela Reca (
Romania
);
Buzău
Basin
: Crivineni, Valea Muscel (
Romania
) (
Hoernes & Auinger 1879
; Hinkulo 1968;
Ionesi & Nicorici 1994
);
Banja Luka Basin
: Jazovac (
Bosnia and Herzegovina
) (
Atanacković 1985
);
Krka Basin
: Dolenja
Brezovica
(
Slovenia
) (
Mikuž 2009
).
Proto-Mediterranean Sea and north eastern Atlantic.
This species is clearly also present in the Mediterranean area (e.g. Serravallian, Karman Basin,
Turkey
,
Landau
et al
. 2013
) but the confusion with
C. exaltatus
makes a critical evaluation of the literature data difficult.