PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Modiolus porterensis

Bivalvia - Mytilida - Mytilidae

Taxonomy

Modiolus porterensis was named by Clark (1925). Its type specimen is LSJU 26 and is a 3D body fossil. Its type locality is N. P. 51 Porter Creek, which is in an Oligocene marine horizon in Washington.

It was recombined as Volsella porterensis by Durham (1944).

Year	Name and author
1925	Modiolus porterensis Clark p. 85 figs. Plate 9, figure 11
1944	Volsella porterensis Durham p. 141

Time interval	Ma	Country or state	Original ID and collection number
Priabonian	37.71 - 33.9	USA (Washington)	Volsella porterensis (91606 208137)
Priabonian	37.71 - 33.9	USA (California)	Volsella porterensis (52622 52626)
Early/Lower Oligocene	33.9 - 27.3	USA (Washington)	Modiolus porterensis (type locality: 91608)