First two cockroaches from the early Eocene of western Rajasthan, India (Insecta Blattodea)
Author
Patel, Raman
0000-0003-2109-8943
Department of Geology, Hemvati Nandan Bahuguna Garhwal University, Srinagar, 246174 Uttarakhand, India & ramanpatel 2142 @ gmail. com; https: // orcid. org / 0000 - 0003 - 2109 - 8943
ramanpatel2142@gmail.com
Author
Rana, Rajendra Singh
0000-0002-2366-1181
Department of Geology, Hemvati Nandan Bahuguna Garhwal University, Srinagar, 246174 Uttarakhand, India & rajendra. rana 1 @ gmail. com; https: // orcid. org / 0000 - 0002 - 2366 - 1181
rajendra.rana1@gmail.com
Author
Nel, Andre
Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP 50, 57 rue Cuvier, 75005 Paris, France.
text
Zootaxa
2021
2021-02-15
4927
3
445
450
journal article
8186
10.11646/zootaxa.4927.3.8
1727587f-3c8d-4a84-9fb6-dcf8d6ab61c4
1175-5326
4542398
7252AEBD-96F3-4ED3-90B3-481B606CAD94
Order
Blattodea Brunner von Wattenwyl, 1882
(
Figs 2–3
)
Material.
Specimens GU/
R
/B/G/3009 (tegmen); GU/
R
/B/G/3004 (incomplete tegmen and incomplete hind wing); deposited in Department of Geology, HNB Garhwal University Srinagar
Uttarakhand
,
India
.
Horizon and Locality.
Carbonaceous and maroon shale beds of the Palana Formation (early Eocene), Gurha opencast lignite mine Bikaner
Rajasthan
.
FIGURE 2.
(A) GU/R/B/G/3009; (B) features mark in GU/R/B/G/3009; (C) line diagram of GU/R/B/G/3009. Scale bars = 2 mm.
Descriptions.
Specimen (GU/
R
/B/G/3009) (
Fig. 2
). Incomplete tegmen with postero-apical part missing; original coloration not preserved; wing
24.8 mm
long, about
8.2 mm
wide; ScP ends on anterior margin,
8.8 mm
from wing base, with weak anterior branches;
R
ends at wing apex, with numerous distally forked anterior branches, all parallel; area between
R
and anterior wing margin
2.6 mm
wide; RA and RP not well differentiated; median area rather reduced, with few branches of M; CuA with numerous parallel branches covering a broad area; CuP+PCu strongly arched and concave; veins of postcubital-anal area all parallel and ending into CuP+PCu.
Specimen (GU/
R
/B/G/3004) (
Fig. 3
). Distal halves of a tegmen and a hind wing, darkened (original color); fragment of tegmen
16 mm
long, about
5.5 mm
wide (
Fig. 3A
); numerous anterior branches of
R
and area between
R
and anterior wing margin broad, ca.
2.3 mm
wide (
Fig. 3A
); fragment of hind wing
6.7 mm
long with numerous branches of main veins (
Fig. 3B
) and a part of anal fan (
Fig. 3C
), partly folded below rest of wing so that cubital branches seem not to be parallel to anal fan.