Taxonomy of Paleozoic radiolarian genera
Author
Noble, Paula
Author
Aitchison, Jonathan C.
Author
Danelian, Taniel
Author
Dumitrica, Paulian
Author
Maletz, Jörg
Author
Suzuki, Noritoshi
Author
Cuvelier, Jessie
Author
Caridroit, Martial
Author
O’Dogherty, Luis
text
Geodiversitas
2017
2017-09-29
39
3
419
502
http://dx.doi.org/10.5252/g2017n3a4
journal article
10.5252/g2017n3a4
1638-9395
5206585
urn:lsid:zoobank.org:pub:603CD230-5931-4506-A122-9CBC2F89189F
Cornum
Schwartzapfel & Holdsworth, 1996
Cornum
Schwartzapfel & Holdsworth, 1996: 230
.
TYPE
SPECIES
. —
Cornum mittereri
Schwartzapfel & Holdsworth, 1996
(
Schwartzapfel & Holdsworth 1996: 246
, pl. 36, fig. 1-5, 10, 15-19).
AGE AND LOCATION OF
TYPE
MATERIAL
. — Middle Chesterian/ lower Namurian (lower Carboniferous),
Delaware
Creek Member, “Caney” Shale, Southern Arbuckle Mountains,
Oklahoma
,
USA
.
TAXON CODE. — 278.
STATUS. — Valid.
DIAGNOSIS. — “Test as with subfamily; imperforate, segmented, asymmetrically conical (rarely symmetrically conical) in shape; subtriangular to rhamphoid-like in outline. Shell flattened, compressed parallel to the plane of bilateral symmetry. Shell half open with lateral slit developed along convex side of shell (in lateral view). Lateral slit continuous with basal aperture. Lamellar wing, situated above basal aperture, originating along convex side of shell between open portion of shell wall. Wing variable in size and shape. Columellae(?) present; not observed in material studied.” (
Schwartzapfel & Holdsworth 1996: 230
).