Your dream is rich with imagery and complex emotions, reflecting deep concerns and themes related to safety, loss, and survival. Let's break it down:

1. Different Era/Realm: This setting suggests a feeling of being out of control or disconnected from your current life. It may symbolize a longing for a simpler time or a struggle with modern challenges.
2. Your Sons: Your youngest son represents your current responsibilities and protective instincts, while your deceased son symbolizes unresolved grief or memories that continue to influence you. His presence indicates that you are carrying the weight of your past while trying to focus on the present.
3. Chaos and Danger: The chaotic environment with dinosaurs and savage people may signify fears of societal breakdown or personal threats in your life. The dinosaurs could represent overwhelming obstacles or challenges that feel primal and instinctual, while the savage individuals may reflect societal fears or personal anxieties about violence and loss of control.
4. Finding Shelter: The act of searching for shelter highlights your need for security and stability. The dark bunkers suggest that you may feel the need to retreat or isolate yourself to protect your loved ones, indicating a strong maternal instinct.
5. Military and Safety: The military controlling the dinosaurs could symbolize hope or authority figures in your life that provide reassurance. However, the shift from safety to chaos again reflects the instability you might be feeling.
6. Themes of Violence and Gender: The portrayal of violence, particularly involving men, may reflect concerns about masculinity, power dynamics, or personal experiences with aggression. The imagery of women covered in blood could symbolize shared trauma or the need for solidarity among women in facing adversity.
7. The Bunker and Secret Compartments: Finding hidden resources suggests an inner strength and resilience. It also reflects your ability to strategize and protect those you love, while the compartment can symbolize the parts of yourself you keep hidden or protected from the outside world.
8. Relationships and Betrayal: The interactions with your ex and the leader signal complex feelings about past relationships, trust, and survival instincts. The leader wanting you as a bride may indicate a struggle between personal autonomy and societal expectations.
9. Rescue and Responsibility: Your desire to rescue other women and children highlights your nurturing nature and the burdens you carry in wanting to help others, even at personal risk.
10. Feeling Trapped: The recurring sense of entrapment and the fear of losing your son mirrors feelings of helplessness or anxiety about your role as a protector in a chaotic world.

Overall, this dream reflects a deep exploration of your fears, responsibilities, and relationships, particularly around themes of safety, loss, and the struggle for control in a chaotic environment. It may be beneficial to reflect on current stressors in your life, particularly those related to your role as a parent, relationships, and your overall sense of security. Consider journaling or discussing these themes with someone you trust, as it may help you process these emotions further.