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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Caption:
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.
Credit:
Album / quintlox
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Image size:
2270 x 3692 px | 24.0 MB
Print size:
19.2 x 31.3 cm | 7.6 x 12.3 in (300 dpi)
Keywords:
298 • 56 MA • A • ANTERIOR • ANTERIORLY • AREA • C • CALLOVIAN • CENOZOIC • COSTAE • D • DIAGRAM • DORSAL • EXTINCT GENUS • F • FAMILIAR • FAMILIES • FAMILY • FLANK • FOSSIL MARINE BIVALVE MOLLUSK • FOSSIL RANGE • GENUS SPANS • LOWER JURASSIC • MARGINAL CARINATRIGONIA COSTATA RANGES • MC • MESOZOIC • MIDDLE JURASSIC • P • PALEOCENE • PALEOZOIC • POSTERIOR • PRINT • SALTWATER CLAMS • SHELL EXTERIOR • SHOWING MAIN MORPHOLOGICAL FEATURES • TOARCIAN • TRIGONIA COSTATA JAMES PARKINSON • TRIGONIA COSTATA • TRIGONIA • TRIGONIIDAE • V • V. • VENTRAL
