Megarachne.
Megarachne was a predatory freshwater arthropod of the order of eurypterids, often called sea scorpions. Two fossil specimens of the genus have been discovered, in San Luis, Argentina, in deposits of Late Carboniferous age from the Gzhelian stage. Megarachne ("great spider") was initially misidentified as a spider. With a body length of 54 cm (1.77 ft), it was a medium-sized eurypterid, similar to others within the Mycteropoidea, a rare group known primarily from South Africa and Scotland. The mycteropoids evolved a specialized method of feeding referred to as sweep-feeding, raking through the substrate of riverbeds to capture and eat smaller invertebrates. Due to their fragmentary fossil record and similarities between the genera, Megarachne and two other members of its family, Mycterops and Woodwardopterus, have been hypothesized to represent different developmental stages of a single genus.
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Showing posts with label Megarachne. Show all posts
Showing posts with label Megarachne. Show all posts
Tuesday, March 24, 2020
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By Unknown Author from NYT Today’s Paper https://ift.tt/3FuWpT8
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ets uafhi 2006 TB %EF%BBvar en tid hvor s Svenskerne udlod i mellemtiden en elendig sidste runde af kampe og tabte til både Østrig og Rusla...
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