Anchura biangulata Anderson

Kaim, Andrzej, Jenkins, Robert G., Tanabe, Kazushige & Kiel, Steffen, 2014, Mollusks from late Mesozoic seep deposits, chiefly in California, Zootaxa 3861 (5), pp. 401-440 : 421

publication ID

https://doi.org/ 10.11646/zootaxa.3861.5.1

publication LSID

lsid:zoobank.org:pub:E62DB6C3-0C5F-4898-99C4-1BEC70DD1734

DOI

https://doi.org/10.5281/zenodo.6127259

persistent identifier

https://treatment.plazi.org/id/03F4372E-FFF2-685A-FF34-04B8FC22F83B

treatment provided by

Plazi

scientific name

Anchura biangulata Anderson
status

 

Pseudanchura biangulata ( Anderson, 1938)

( Fig. 9A–D View FIGURE 9. A – D )

1938 Anchura biangulata Anderson , n. sp.; Anderson 1938, pl. 9, figs. 4–6.

Description. The best preserved specimen (CAS 73132) is composed of six high-spired whorls. Two earliest are rounded with poorly visible ornamentation spiral riblets while the third whorl bears no ornamentation apart from strong median keel. The aperture and apertural extensions not preserved in the investigated specimens.

Material and occurrence. Two poorly preserved juvenile specimens ( CAS 73132, 73133). Eagle Creek (Late Barremian, Early Cretaceous).

Remarks. P. biangulata has been reported from a couple of localities in the Ono area by Anderson (1938) and it remains uncertain whether they were seep locations or "normal" deep water sediments. Most likely the association of P. biangulata with seep carbonates is fortuitous as aporrhaids are gastropods typical for soft bottom marine environments during Mesozoic times and they have been found at various Jurassic to Paleocene seep deposits ( Kaim et al. 2008b; Kiel et al. 2010, 2013; Agirrezabala et al. 2013).

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Aporrhaidae

Genus

Anchura

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