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
Ilhasina torosa
Krömmelbein, 1963
Fig. 5
,
10a–c
1963
Ilhasina torosa
n. sp.
—Krömmelbein, p. 382–383, pl. 1, fig. 3.
Diagnosis:
So far the largest
Ilhasina
species
(around
0.9mm
carapace length) with a stocky carapace shape, highly arched dorsal margin, and posteriorly very strongly widened carapace (dorsal view!). On the posterior field of both valves is a strong callus, which runs diagonally from the upper anterior to the lower posterior, which towards the posterior at the top is placed distinctly concavely against the valve arch. A similar more rounded and significantly weaker thickening occasionally on the anterior margin of the right valve.
Holotype
:
Carapace,
SMF
Xe 4654.
Paratypes
:
3 carapaces,
SMF
Xe 4655
.
Dimensions:
Holotype
, length
0.89mm
, height
0.54mm
, width
0.54mm
.
Remark (Bate
et al
. herein):
Catalogue number for
paratypes
incorrect in original paper.