A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii)
Author
Kriwet, Jürgen
Author
Klug, Stefanie
Author
Canudo, José I.
Author
Cuenca-Bescos, Gloria
text
Zoological Journal of the Linnean Society
2008
2008-10-31
154
2
278
290
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
journal article
3185
10.1111/j.1096-3642.2008.00410.x
3bf87428-0476-429e-821f-ff1e342ccc8b
0024-4082
4687724
11BE3245-904C-46DA-B052-16295D3FDAE3
FAMILY
EOPTOLAMNIDAE
NOV.
Derivation of name:
Derived from the name of the
type
genus,
Eoptolamna
gen. nov.
Diagnosis:
Lamniform sharks only known by isolated teeth and characterized by the following combination of characters: tearing-type dentition with very weak gradient monognathic heterodonty; a single pair of parasymphyseals(?) present; mesiodistally compressed teeth, with generally a single pair of lateral cusplets; robust roots with short branches; lingual protuberance more or less massive; with nutritive groove, which might be secondarily closed.
Genera included:
Eoptolamna
gen. nov.
,
Leptostyrax
, and
Protolamna
.