Geosonnet 64

When Perseus, Medusa’s head in hand,

Returned triumphant from the Gorgon’s isle,

He sold himself as hero of the land,

No stony witnesses could cramp his style.

When older larger monsters were destroyed,

No Greek boast twisted dinosaurs’ last stand.

To know the source of mammals’ schadenfreude,

Interrogate the Gorgon Island’s sand.

A spherule bed is present in the rock

Old microtektites still containing glass

The argon age is Chicxulub’s great shock,

American ejecta cumulates en masse.

   Thus impact-based extinction we construe.

   With mythic monsters vanquished, ferns regrew.

Geology 46 547

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Geosonnet 63

 

The Tragomys, like Creagh a desert rat,

Evolving on the hamster wheel of time

Scampered across the desert habitat

Of arid climates close to maritime.

But though they like to sunbathe, they don’t swim.

A beach bum never venturing to sea

Won’t paddle to an island on a whim;

Mallorca Strait stops them assuredly.

But when Mediterranean dries up

By isolation from the global seas

Then rodents which can’t swim can walk or jump

Populating peninsula with ease.

The hamsters, gerbils both confirm the tale

Messinian evaporates regale.

Geology 46 527

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