pone.0258510.s004.pdf (1.94 MB)
Download fileSize classes of giant Parapuzosia (P.) over the Tepeyac and Chalk sections.
journal contribution
posted on 2021-11-10, 18:24 authored by Christina Ifrim, Wolfgang Stinnesbeck, Arturo H. González González, Nils Schorndorf, Andrew S. GaleSize refers to the diameter of the phragmocone (DP), i.e. diameter at the last suture; the indivdual shells were originally 1.5x larger. Magenta: P. (P.) leptophlla. Dark-red: P. (P.) seppenradensis. See Fig 3 for legend.
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small geographic areascaused ecological pressureanalysis provides insightanalysed regarding morphometryworld ever sincediv >< pgradual evolutionary increaselate cretaceous cephalopodsdiameter near seppenrade1895 ), fascinatedmiddle early campanianlarge (< 1also reached diametersworld ’p </cretaceous seaslower campanianearliest campaniancoeval increaselate santonianearly santoniansize increasetop predatorssubsequent findingsstratigraphic informationshell diametersseppenradensis </precise crosspotential ancestorparapuzosia </palaeogeographic distributionleptophylla </latter grewlargest ammonitegrowth stagesgigantism exceedsgiant cephalopodgeneral trendfirst appearsexceedingly rareadult shells74 metres
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