The dino ruleset is based mostly on the experimental ruleset with some things from the civ2civ3 ruleset, including the variable city radius, wild animals, and new unit class "Big Land".

Culture victory enabled, and culture effects fully implemented. Culture victory requires at least 1000 culture points, and 3x value of second best nation. Some improvements and wonders add culture to a city, if that city is lost then its culture is also lost. Culture values for improvements and wonders are in the Help Browser. Each time a "Future Tech." is researched adds 10 culture to a nation. Achievements also add culture to a nation, their values -
1000 - launch spaceship
500 - mapped the entire world
100 - 20% of the world mapped
100 - sight your first foreign shore
100 - nation has reached 100% literacy
100 - a city has 2 different nationalities
100 - a city reaches size 20
100 - a city has 1000 culture points
1000 - nation has achieved 10000 culture points

Watch out for wild animals - Deep Ocean tiles may contain a Kraken, Hills and Mountains may have a Snow Leopard. Killing a wild animal gives 10 gold and one culture point. Plague and disasters (Earthquake, Flood, Fire, Industrial Accident, Nuclear Accident) activated. Citizen nationality enabled. Migration enabled, but not within a nation. Trade route bonuses reduced by 25%. Max # trade routes per city starts at 2, increases to 3 with Magnetism, 4 with The Corporation. Customized for playing one city challenge games, the human player will not get a new city from a hut.

Cities start with a radius of 1, grows to 2 when they reach size 3. With tech Railroad and city size 10, the radius grows to the maximum possible 3. No rapture growth of cities - instead, under Republic and Democracy a celebrating city gets one extra trade from every worked tile.

New buildings "Water Mill", "Hospital", "Genetic Lab", "Aqueduct, Lake" and "Aqueduct, River" added. "Colosseum" renamed to "Arena", "Sewer System" renamed to "Waterworks". All science improvement percents decreased, and other changes are also described in Help Browser. New Wonder "Temple of Artemis" added, "SETI" renamed to "Internet", some Wonder effects changed - see Help Browser.

Some tech effects and pre-requisites changed - see Help Browser.

Some changes to terrain and terrain alterations - see Help Browser.

Freight, Armor, Artillery, Cannon, Catapult, Howitzer, and Mech. Inf. are members of unit class "Big Land". They can move only into a desert, grassland, or plains, or terrain with a road, river or fortress. The only ships that can carry them are Galleon and Transport.
All land units get vision bonus on mountains.
Upgrading a unit loses one veteran level. 

No holes allowed in tech tree. Technology cost is reduced depending on the number of players which already know the tech and you have an embassy with. gold_upkeep_style = "Nation", tired_attack = TRUE and force_trade_route = TRUE.