Parahughmilleria (Eurypterus) maria Clarke Page 84 See plate 22 1 Smallest specimen observed. Shows broad short carapace; broad preabdomen; large eyes; swimming legs; abdomen with apparently but eight segments and short telson. Paratype. × 6. (length ) 2 Somewhat older individual, having 12 segments, but still retaining the broad carapace and preabdomen. Paratype. × 5. (length 8mm) 3 Carapace of young individual, showing the great width of carapace, the large lateral eyes with ocular node and visual area and prominent ocellar tumescence. × 18. (length ) 4 Carapace and first tergite o


Parahughmilleria (Eurypterus) maria Clarke Page 84 See plate 22 1 Smallest specimen observed. Shows broad short carapace; broad preabdomen; large eyes; swimming legs; abdomen with apparently but eight segments and short telson. Paratype. × 6. (length ) 2 Somewhat older individual, having 12 segments, but still retaining the broad carapace and preabdomen. Paratype. × 5. (length 8mm) 3 Carapace of young individual, showing the great width of carapace, the large lateral eyes with ocular node and visual area and prominent ocellar tumescence. × 18. (length ) 4 Carapace and first tergite of somewhat older individual, still showing large prominent lateral eyes. × 6 5 Young carapace with a swimming leg. Eyes show ocular node and visual area. × 12 6 A larger carapace with smaller eyes, retaining both the ocular node and visual area. × 3 7 Another carapace, showing the crescentlike form of the visual area. Paratype. × 3 8 Very young individual, retaining carapace and preabdomen; with slight lateral compression. Shows rim and very prominent lateral eyes and ocellar mound or tumescence. × 5 9 Another young individual, retaining more nearly the original form and strong traces of ornamentation on tergites. Paratype. × 5½. (length 8mm) 10 An older carapace retaining the large sized lateral eyes of the immature condition. × 3. (length ) 11 A young individual showing the carapace with the swimming leg and eight segments 12 The type specimen; a probably mature individual. Natural size All originals are from the Shawangunk grit, Otisville, Orange co., N. Y., and are in the State Museum The Eurypterida of New York. Volume 2. New York State Museum Memoir 14, plate 21 . 1912 13 The Eurypterida of New York plate 21


Size: 1936px × 2581px
Photo credit: © History and Art Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: