Anglaspis is a heterostracan from the Early Devonian of Norway. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-anglaspis-is-a-heterostracan-from-the-early-devonian-of-norway-130442645.html
RFHG64WW–Anglaspis is a heterostracan from the Early Devonian of Norway.
Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/royal-tyrrell-museum-canada-dec-21-2021-the-gigantesque-dinosaures-fossiles-in-royal-tyrrell-museum-image455765275.html
RM2HDDW77–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
Ctenaspis is a jawless fish from the Early Devonian of Norway. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-ctenaspis-is-a-jawless-fish-from-the-early-devonian-of-norway-130442657.html
RFHG64X9–Ctenaspis is a jawless fish from the Early Devonian of Norway.
Pteraspis was a carnivorous marine fish that was heavily armored and lived during the Devonian Period. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pteraspis-was-a-carnivorous-marine-fish-that-was-heavily-armored-and-lived-during-the-devonian-period-image330530537.html
RF2A5MY21–Pteraspis was a carnivorous marine fish that was heavily armored and lived during the Devonian Period.
. Chordate morphology. Morphology (Animals); Chordata. the present. The position of the nasohypophyseal opening on the top of the head in the osteostracan and anaspid sug- gests relationship with the lamprey. The position of this opening at the tip of the snout in the myxinid, along with the general separation of cranial and branchial skeletons suggest as close a relationship between the hagfish and lamprey as with the heterostracan. The many differences in structure of the hagfish as compared with the lamprey sug- gest that the two living lines arose at the time of the pri- mary radiation of Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/chordate-morphology-morphology-animals-chordata-the-present-the-position-of-the-nasohypophyseal-opening-on-the-top-of-the-head-in-the-osteostracan-and-anaspid-sug-gests-relationship-with-the-lamprey-the-position-of-this-opening-at-the-tip-of-the-snout-in-the-myxinid-along-with-the-general-separation-of-cranial-and-branchial-skeletons-suggest-as-close-a-relationship-between-the-hagfish-and-lamprey-as-with-the-heterostracan-the-many-differences-in-structure-of-the-hagfish-as-compared-with-the-lamprey-sug-gest-that-the-two-living-lines-arose-at-the-time-of-the-pri-mary-radiation-of-image234908195.html
RMRJ4YPB–. Chordate morphology. Morphology (Animals); Chordata. the present. The position of the nasohypophyseal opening on the top of the head in the osteostracan and anaspid sug- gests relationship with the lamprey. The position of this opening at the tip of the snout in the myxinid, along with the general separation of cranial and branchial skeletons suggest as close a relationship between the hagfish and lamprey as with the heterostracan. The many differences in structure of the hagfish as compared with the lamprey sug- gest that the two living lines arose at the time of the pri- mary radiation of
Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/royal-tyrrell-museum-canada-dec-21-2021-the-gigantesque-dinosaures-fossiles-in-royal-tyrrell-museum-image455765358.html
RM2HDDWA6–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
Drepanaspis is a jawless fish from the Early Devonian of Germany. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-drepanaspis-is-a-jawless-fish-from-the-early-devonian-of-germany-130442659.html
RFHG64XB–Drepanaspis is a jawless fish from the Early Devonian of Germany.
Pteraspis was a carnivorous marine fish that was heavily armored and lived during the Devonian Period. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pteraspis-was-a-carnivorous-marine-fish-that-was-heavily-armored-and-lived-during-the-devonian-period-image330530539.html
RF2A5MY23–Pteraspis was a carnivorous marine fish that was heavily armored and lived during the Devonian Period.
. Chordate morphology. Morphology (Animals); Chordata. cornual plate (fin) orogoniale 'postorbital canal 1 bronchial plate bronchia! opening ventral sensory line. Figure 5-32. Structure of Cepholothorax of Simopterospis primoevo, a heterostracan. A, lateral view with main sensory canols shown; B, dorsal view; C, ventral view; D, dorsal view of cast of internal surface of bony armor. (After Stensio, 1 958) were acquired by the fusion of small denticles into polygonal plates and these into larger units. Not all agnaths tended to develop a dermal skeleton and of those that did, the time and seque Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/chordate-morphology-morphology-animals-chordata-cornual-plate-fin-orogoniale-postorbital-canal-1-bronchial-plate-bronchia!-opening-ventral-sensory-line-figure-5-32-structure-of-cepholothorax-of-simopterospis-primoevo-a-heterostracan-a-lateral-view-with-main-sensory-canols-shown-b-dorsal-view-c-ventral-view-d-dorsal-view-of-cast-of-internal-surface-of-bony-armor-after-stensio-1-958-were-acquired-by-the-fusion-of-small-denticles-into-polygonal-plates-and-these-into-larger-units-not-all-agnaths-tended-to-develop-a-dermal-skeleton-and-of-those-that-did-the-time-and-seque-image234908200.html
RMRJ4YPG–. Chordate morphology. Morphology (Animals); Chordata. cornual plate (fin) orogoniale 'postorbital canal 1 bronchial plate bronchia! opening ventral sensory line. Figure 5-32. Structure of Cepholothorax of Simopterospis primoevo, a heterostracan. A, lateral view with main sensory canols shown; B, dorsal view; C, ventral view; D, dorsal view of cast of internal surface of bony armor. (After Stensio, 1 958) were acquired by the fusion of small denticles into polygonal plates and these into larger units. Not all agnaths tended to develop a dermal skeleton and of those that did, the time and seque
Pteraspis Fish Side Profile - Pteraspis was a primitive jawless fish that lived in the oceans of the Devonian Period. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pteraspis-fish-side-profile-pteraspis-was-a-primitive-jawless-fish-that-lived-in-the-oceans-of-the-devonian-period-image231187113.html
RFRC3DEH–Pteraspis Fish Side Profile - Pteraspis was a primitive jawless fish that lived in the oceans of the Devonian Period.
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RM2HDDW3D–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW5N–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW83–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW1M–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW8R–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW24–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW9C–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW13–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW43–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDW56–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDTYK–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDTPT–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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RM2HDDTTR–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/royal-tyrrell-museum-canada-dec-21-2021-the-gigantesque-dinosaures-fossiles-in-royal-tyrrell-museum-image455764910.html
RM2HDDTP6–Royal Tyrrell Museum, Canada - Dec. 21 2021: The gigantesque dinosaures fossiles in Royal Tyrrell Museum
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