hercoglosidae

hercoglosidae heey notilesi yaa super familitil notilidche eka kutumb aahe. 1927 madhye spathdware yachee sthapana gulgulit, involute notiloidsasathi karnyat aalee hotee, jeey varchya jurasikpasun oligoseenparyant dnyat asalelya bhinn ghatkansah shivanadvare darshavile gele hote.
yaa granthat chaar vanshanche varnan kele aahe. teey aahet "hercoglosa", "eturoidia", "simoniya" aanee "deltoidonatilus". sarvanmadhye eka vartulakar vibhag asato joou samanyatah golakar asato, apavad mhanoon 'deltoidonatilus', jyamadhye tyachi ruparesha trikoni asate. surkutyachi guntagunt 'simomiya' pasoon 'hercoglosa' aanee 'eturoidia' paryant vadhate. deltoidonautilus' madheel shivan 'hercoglosa' peksha jaast asate.
"simomiya", jeey "utrephosera" saha aantarshrenikrut hote, heey sarvat june aahe aanee varchya jyurasikmadhye tyache pahile swaroop aahe. "utrephosera" haah notilidela niyukt keela jaato jyamadhye "nautilus" samavisht aahe. "simomiya" pasoon vyutpann jhalela "hercoglosa", pratham khalchya cretatiusmadhye disun yeto aanee tyanantar starikaritya "eturoidia" aanee "deltoidonautilus" yetat jeey pratham varchya cretatiusmadhye disatat. "eturoidia" haah "eturia" (monotypic eturidecha) purvaj aahe, jyala tyane paleocenemadhye janm deela.

