alb4367368
Trigonia costata, Print, Diagram of Trigonia costata James Parkinson, showing main morphological features of the shell exterior;a) Anterior; p) Posterior; d) Dorsal; v) Ventral; F) Flank; A) Area; c) Costae; mc) Marginal CarinaTrigonia costata ranges from the Lower Jurassic (Toarcian) to Middle Jurassic (Callovian).. Trigonia is an extinct genus of saltwater clams, fossil marine bivalve mollusk in the family Trigoniidae. The fossil range of the genus spans the Paleozoic, Mesozoic and Paleocene of the Cenozoic, from 298 to 56 Ma.
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Trigonia costata, Print, Diagram of Trigonia costata James Parkinson, showing main morphological features of the shell exterior;a) Anterior; p) Posterior; d) Dorsal; v) Ventral; F) Flank; A) Area; c) Costae; mc) Marginal CarinaTrigonia costata ranges from the Lower Jurassic (Toarcian) to Middle Jurassic (Callovian).. Trigonia is an extinct genus of saltwater clams, fossil marine bivalve mollusk in the family Trigoniidae. The fossil range of the genus spans the Paleozoic, Mesozoic and Paleocene of the Cenozoic, from 298 to 56 Ma.
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Album / quintlox
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Taille de l'image:
2270 x 3692 px | 24.0 MB
Taille d'impression:
19.2 x 31.3 cm | 7.6 x 12.3 in (300 dpi)
