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Swiss Journal of Palaeontology
Fig. 9 | Swiss Journal of Palaeontology

Fig. 9

From: 3-D orientation and distribution of ammonites in a concretion from the Upper Cretaceous Pierre Shale of Montana

Fig. 9

Bivalves and other fauna in the concretion. a Endocostea typica, AMNH 63620. b Modiolus meeki, AMNH 63621. c Modiolus galpinianus, AMNH 63622. d Crenella elegantula, AMNH 63623. e Limopsis striatopunctata, AMNH 63624. f Nymphalucina occidentalis, AMNH 63625. g Oxytoma (Hypoxytoma) nebrascana, AMNH 63626. h Pholadomya deweyensis, AMNH 63653. i Protocardia subquadrata, with drill hole, AMNH 63652. j Pecten (Chlamys) nebrascenis, AMNH 63651. k Phelopteria linguiformis, AMNH 63627. l Tenuipteria fibrosa, AMNH 63628. m Anomia gryphorhyncha, AMNH 63629. n Echinoid in cross-section, AMNH 63630

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