Non-marine Ostracoda (Crustacea) of the Early Cretaceous ‘ Pre-Salt’ sediments of Brazil: An illustrated catalogue of the type specimens of Wicher, Krömmelbein, Krömmelbein & Weber, and Bate
Author
Bate, Raymond H.
ray@globalexplor.com
Author
Horne, David J.
0000-0002-2148-437X
d.j.horne@qmul.ac.uk
Author
Horne, Sarah E.
Author
Douglas, Lyndsey
l.douglas@vam.ac.uk
Author
Miller, Giles
0000-0001-9111-2136
g.miller@nhm.ac.uk
Author
Lord, Alan R.
0000-0002-0008-7746
ray@globalexplor.com
text
Zootaxa
2022
2022-02-09
5098
1
1
84
journal article
157772
10.11646/zootaxa.5098.1.1
ec802837-a2c4-4955-b15d-118934255664
1175-5326
6036685
26267A94-CD1E-49CF-9F72-C4E5D8149311
Cypridea
(
Morinina
?)
bibullata
Wicher, 1959
Cypridea
(
Morinina
?)
bibullata bibullata
Wicher, 1959
1959
Cypridea quadrilateralis
Swain
bibullata
n. subsp.
—Wicher, p. 40–41, pl. 6, fig. 4.
Revised Diagnosis:
A
Cypridea
(
Morinina
?)
bibullata
with the following peculiarities: rostrum pointed, fairly large, distinctly bent back towards the posterior. Rostral groove and rostral sulcus marked. Both valves with a flat, fairly broad but indistinctly bordered median sulcus, which does not reach the centre of the valve. On both sides of the sulcus, in the region of the dorsal margin, is a knob-like inflation, which can vary strongly: there are all transitions between weakly or slightly inflated roundish domes or “buttons” to more pointed spine-like or prickle-like formations. Fine sculpture: in cases of good preservation numerous relatively widely-spaced pits can be observed*. Carapace slim in dorsal view.
Remarks (Bate
et al
. herein):
This is from the original paper - *The carapace surface is therefore in no way “smooth, without noticeable fine sculpture” (
Wicher 1959
, p. 41). Krömmelbein based a new species with two subspecies on
Wicher’s (1959)
subspecies that we figure here as
Fig. 1
,
5a–c
.
Material:
‘Hypotypes’, carapace,
SMF
Xe 4210; carapace,
SMF
Xe 4211; 2 carapaces,
SMF
Xe 4450.