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Crassatella stillwaterensis Weaver and Palmer 1922

PaleoDB taxon number: 421443

Alternative combination: Crassatellites stillwaterensis

Full reference: C. E. Weaver and K. Palmer. 1922. Fauna from the Eocene of Washington. University of Washington Publications in Geology 1(3):1-56

Belongs to Crassatella according to A. J. W. Hendy 2020

Sister taxa: Crassatella (Crassatella), Crassatella (Landinia), Crassatella (Pachythaerus), Crassatella antestriata, Crassatella aquiana, Crassatella arcacea, Crassatella astartiformis, Crassatella branneri, Crassatella carcarensis, Crassatella carmanahensis, Crassatella carolinensis, Crassatella claytonensis, Crassatella collina, Crassatella compacta, Crassatella compressa, Crassatella conradiana, Crassatella corioensis, Crassatella corrugata, Crassatella cowlitzensis, Crassatella cygnea, Crassatella dalli, Crassatella dennanti, Crassatella dennati, Crassatella densus, Crassatella desmaresti, Crassatella desvauxi, Crassatella elongata, Crassatella eutawcolens, Crassatella flexura, Crassatella fusca, Crassatella gamma, Crassatella haughtoni, Crassatella hauniensis, Crassatella hodgei, Crassatella kalitensis, Crassatella kroisbachensis, Crassatella lincolnensis, Crassatella lomana, Crassatella longior, Crassatella meganosensis, Crassatella mercedensis, Crassatella merriami, Crassatella neorhynchus, Crassatella oenana, Crassatella patagonica, Crassatella pedroi, Crassatella perrini, Crassatella plumbea, Crassatella portelli, Crassatella radiata, Crassatella rafaeli, Crassatella rhomboidea, Crassatella scutellaria, Crassatella stewartvillensis, Crassatella studleyi, Crassatella subregularis, Crassatella sulcata, Crassatella symmetrica, Crassatella texalta, Crassatella trapaquara, Crassatella tumidula, Crassatella uvasana, Crassatella vadosa, Crassatella washingtoniana, Crassatella weaveri, Crassatella willcoxi, Crassatellites neusensis, Crassatellites iheringi, Crassatellites lillisi, Crassatellites yabei, Crassatellites (Crassatellites), Crassatellites camurus, Crassatellites berryi, Crassatellites maroimensis, Crassatellites matsuraensis, Crassatellites exiguus, Crassatellites asakuraensis, Crassatellites texana, Crassatellites inconspicuus, Crassatellites mulates, Crassatellites paramesus, Crassatellites brainerdi, Crassatellites negreetensis

Type specimen: CAS 7419, a shell. Its type locality is UW 319, which is in a Bartonian marine horizon in the Cowlitz Formation of Washington.

Average measurements (in mm): shell 43.0 x 32.0