ECHINOIDS (SEA URCHINS)

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FROM PENDER COUNTY-EOCENE MARINE DEPOSITS-BETWEEN 40 AND 60 MILLION YEARS OLD

THE SMALL SEA URCHINS AT TOP OF PICTURE ARE FROM ONSLOW COUNTY-THE REST ARE FROM PENDER COUNTY-THE SMALL SPIKES IN UPPER RIGHT HAND CORNER ARE SEA URCHIN SPINES FROM PENDER COUNTY

SEA URCHINS FROM ONSLOW COUNTY-BELGRADE FORMATION .5"

THE CASTLE HAYNE FORMATION IS KNOWN WORLDWIDE FOR THE MANY SPECIES OF ECHINOIDS THAT CAN BE FOUND THERE-THE ECHINOIDS SHOWN BELOW ARE ALL FROM THIS FORMATION IN EASTERN NORTH CAROLINA

CIDARIS PRATTI 1" (1" = About one inch in diameter)

MARETIA SUBROSTRATA 1.5"

COELOPLEURUS INFLATUS .75"

HARDOUINIA MORTONIS EMMONSI 1.5"

UNIFASCIA CAROLINENSIS 1.5"

AGASSIZIA WILMINGTONICA ?? .75"

EURHODIA RUGOSA RUGOSA ?? 1.5"

EURHODIA RUGOSA DEPRESSA 1.5"

THESE ECHINOIDS ARE COVERED WITH BRYOZOA CALLED REPTOLUNULITES

ECHINOIDS CAN RANGE IN SIZE FROM JUST 1/16" DIAMETER TO 6" DIAMETER-(DIME SHOWN TO GIVE SCALE)

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