• Dinos sent home by dynamite at the end of a level still count toward your total.
  
• Failing a level still counts the number of dinos sent home before you failed.
  
• Retrying a level still counts the number of dinos sent home before you retried.

There are a few really good options here, as far as Dinos Per Minute(dpm) is concerned:

• 3-18: 43.73 dpm
  
• 1-20: 36.30 dpm
  
• 1-13: 40.36 dpm

(Calculated by the time between clicking the start button and the last dino sent home. Load times not included.)

This level has 96 dinos to send home, including 10 T-Rexes at the end, and takes ~2:55 to clear the level. BUT, since we can retry the level at any point and still get credit for the dinos already sent home, I averaged about 1:58 to clear all the compies for a total of 86 dinos.

Since we don't care about 3 steaking the level while dino-grinding, don't even worry about the first two waves. They'll get taken out by the first dynamite. Just grab your coconuts and start playing loud music at the dinos as soon as possible. Towers 1, 2, and 3 are necessary to clear the compies, and you can add tower 4 to clear the level if you want.
To save some seconds, I recommend retrying the level after wave 12, or right around the end of "Level Progress" in the progress bar.

This level has the potential to send home more dinos than any other. It just takes a long time to get through them all. The tricky part here is to hurt the boss juuuuust the right amount. Too much damage and you miss out on some waves of dinos. Too little damage and you're cutting into your dpm by wasting time on a healthy boss.

Early on, take out the first waves with laser #1 and a little maneuvering. Build the first two lasers as early as you can, but wait to build the meteor until after the boss has reached point A. Let the boss hit the first dynamite to bounce back a bit. Then, if you've been attacking the boss a lot so far, you'll want to wait until the boss has reached point B before building the gatling turret.
That should get you pretty close to the right amount of damage you need, +/- whatever you've done while moving around the map. Bring some TNT and/or other power-ups to finish him off ASAP after the other waves are gone. You'll get a feel for it after a few tries, and there's LOTS of wiggle room for other towers after the lasers.

Bonus Tip: If you already have all the gold you need, don't click on the chest at the end and just retry the level to save a bunch of time.

I'm not going to flesh this out any further as a user named Kelly has a pretty good guide for this level already:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=206086140

Remember it's a game, even if you're just grinding at this point. Try some weird combos out. Min/max the setup/timing of a given strategy. Listen to some music or grind out another game at the same time ;)

You can even just play through the game a second time(After going through a second time to fill out the table, I really didn't need to grind more than a few levels.)

I tried out a few other levels, but they didn't come close to the dpm I was getting from 3-18. Maybe that was just my strategy, or maybe there's some more tech I'm missing. So comment below if you find another great way to send dinos home en masse. I likely won't be playing this game again, but it was fun while it lasted.

glhf,

Jimples