Penion marwicki

Penion marwicki is an extinct species of marine snail or whelk, belonging to the true whelk family Buccinidae.[1][2]

Penion marwicki
Temporal range: Early Miocene, 18.7–15.9 Ma
↓
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Buccinoidea
Family:
Buccinidae
Genus:
Penion
Species:
†P. marwicki
Binomial name
†Penion marwicki
(Finlay, 1930)
Synonyms
  • Verconella marwicki Finlay, 1930

Description

Penion marwicki is a large, extinct species of Penion siphon whelk.[1][2]

The extinct species Penion exoptatus, Penion clifdenensis, and potentially also Penion marwicki, may belong to the same evolutionary lineage as the extant species Penion sulcatus.[3] This hypothesis is based on geometric morphometric analysis of shell shape and size for all four taxa, as well as the analysis of morphometric variation exhibited all living species of Penion.[3]

Distribution

Fossils of Penion marwicki are found in the South Island of New Zealand, and are relatively common at sites in North Otago and South Canterbury.[1]

References
  1. Beu, Alan G.; Maxwell, P.A. (1990). Cenozoic Mollusca of New Zealand. New Zealand Geological Survey Bulletin. 58. Lower Hutt, New Zealand: New Zealand Department of Scientific and Industrial Research. ISSN 0114-2283.
  2. WoRMS World Register of Marine Species: Penion marwicki (Finlay, 1930) †
  3. Vaux, Felix; Gemmell, Michael R.; Hills, Simon F.K.; Marshall, Bruce A.; Beu, Alan G.; Crampton, James S.; Trewick, Steven A.; Morgan-Richards, Mary (2020). "Lineage Identification Affects Estimates of Evolutionary Mode in Marine Snails". Systematic Biology. 69 (6): 1106–1121. doi:10.1093/sysbio/syaa018.
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