| MESOZOICERA | Stretch of time aka the "Age of Reptiles" |
| EVENT | Word for an occurrence at a single point in space-time, aka a "here and now"; or, a three-day horse gathering or powwow (5) |
| CENOZOIC | Geological era known as the 'Age of Reptiles' (8) |
| CRET | ___. Period (When the Age of Reptiles came to an end) |
| JURASSIC | *Period in the Age of Reptiles |
| SPAN | Distance between the tips of one's thumb and little finger; the wingspread of an aircraft or bird; a stretch of time, as in concentration or life etc; or, the arch of a bridge (4) |
| AMNION | Inner of the two membranes enveloping the embryos of reptiles, birds and mammals, enclosed by the chorion (6) |
| HERPETOLOGY | Branch of zoology concerned with the study of reptiles and amphibians (11) |
| DAMAGE | Result of vandalism ___ mother gets a long stretch of time (6) |
| TESTUDINES | Zoological order of reptiles comprising the turtles, tortoises and terrapins (10) |
| HERPETOLOGIST | Zoologist concerned with the study of reptiles and amphibians |
| OPHIDIA | The group of reptiles to which snakes belong (7) |
| SQUAMATA | Largest order of reptiles, comprising the snakes, lizards and worm lizards (8) |
| SNAKESKIN | Family of reptiles found in the shed? (9) |
| SAURIA | Order of reptiles from the air America is upset by (6) |
| ADDERS | They find the total number of reptiles (6) |
| VISTA | A distant view through or along an avenue / an extensive mental view (as over a stretch of time or a series of events) |
| LIGHTYEAR | Long stretch of time with part of crossword to fill in (5-4) |
| EON | Incredibly long stretch of time |
| MINUTE | Record tiny stretch of time |
