stratigraphic column illustrating the chronological succession of cretaceous sedimentary layers in britain - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
structural morphology and surface texture of ptilodictya falciformis from the trenton limestone and cincinnati group - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
diverse skeletal forms of upper silurian crinoids from wenlock and niagara limestone - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
planorbiform shell structure and surface ornamentation of maclurea crenulata from newfoundland - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
skeletal variations and valve profiles of lower silurian brachiopods from north america and europe - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
stratigraphic column showing the chronological sequence of jurassic sedimentary formations in england - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
fossilized shell of an enigmatic marine organism -geometric shell morphology and transverse ornamentation of conularia ornata - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
colonial growth patterns and internal structures of halysites from the niagara limestone - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
branched structural complexity of a dichograptus octobrachiatus specimen from the arenig horizon - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
morphological variations and shell geometry of spirifera species - two distinct species of brachiopods - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
morphological variations in the basal appendages of diplograptus pristis specimens - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
external skeletal structure of zaphrentis stokesi from the upper silurian of canada - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
morphological variations and surface ornamentation of spirorbis species from north america - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
leaf-like colonial morphology of phyllograptus typus from the quebec group of canada - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
comparative skeletal meshwork of colonial bryozoans - two distinct types of lace-like colonial organisms recovered from devonian strata in canada. - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
stratigraphic column showing the sequence of permian sedimentary formations in northern england - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
stratigraphic column illustrating the succession of triassic sedimentary layers in central europe - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
comparative shell coiling and surface texture of spirorbis species from the devonian - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標螺旋狀
fin-spine and dermal scales from the ludlow bone-bed - ichthyodorulite, shagreen-scales - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
elongated conical shell and rhythmic ringed structure of tentaculites ornatus - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
anatomical reconstruction of the soft tissues and internal chambers of orthoceras - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
productus horridus is an outdated name for a brachiopod species now classified as horridonia horrida ,it is a fossil found in permian rock formations, particularly in the zechstein deposits - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
spirifer is a genus of marine brachiopods belonging to the order spiriferida and family spiriferidae - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
fenestella is a genus of bryozoans or moss animals, forming fan–shaped colonies with a netted appearance - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
spirifer speciosus spiriferida is an order of extinct articulate brachiopod fossils which are known for their long hinge-line, which is often the widest part of the shell - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
spiriferida (merista herculea) is an order of extinct articulate brachiopod fossils which are known for their long hinge-line, which is often the widest part of the shell - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
spiriferida (spirigera concentrica) is an order of extinct articulate brachiopod fossils which are known for their long hinge-line, which is often the widest part of the shell - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
various skeletal components from prominent marine vertebrates -cranial anatomy and dental structures of devonian fishes - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
hexagonal colony surface of strombodes pentagonus from the upper silurian of canada - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
platycrinus trigintadactylus is a fossil organism, likely a crinoid or "sea lily," that was found in the carboniferous period - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
diverse morphological perspectives of platyceras dumosum - specialized marine snail - 希留利亞紀 幅插畫檔、美工圖案、卡通及圖標
